diff --git a/README.md b/README.md
index 72e7d1a..ea0aeb0 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Visual-Heatmap Js
+# Visual-Heatmap Js [![npm](https://img.shields.io/npm/v/visual-heatmap.svg)](https://www.npmjs.com/package/visual-heatmap) [![Downloads](https://img.shields.io/npm/dm/visual-heatmap.svg)](https://www.npmjs.com/package/visual-heatmap)
 Open source javascript module for rendering high performance, large scale heatmap.
 
 Visual Heatmap is based on advanced graphical rendering context - WebGL/Shaders. It can render 500,000+ data points with a good framerate.
diff --git a/dist/visualHeatmap.esm.browser.js b/dist/visualHeatmap.esm.browser.js
index e3b3ede..782e085 100644
--- a/dist/visualHeatmap.esm.browser.js
+++ b/dist/visualHeatmap.esm.browser.js
@@ -1,6 +1,6 @@
 /*!
-      * Heatmap v1.0.3
-      * (c) 2019 Narayana Swamy (narayanaswamy14@gmail.com)
+      * Heatmap v1.0.5
+      * (c) 2023 Narayana Swamy (narayanaswamy14@gmail.com)
       * @license BSD-3-Clause
       */
 function getPixlRatio (ctx) {
@@ -59,7 +59,7 @@ var GradvertexShader = `
 var ColorfragmentShader = `
 	precision mediump float;
 	varying vec2 v_texCoord;
-	uniform sampler2D u_framebuffer; uniform vec4 u_colorArr[100]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[100];
+	uniform sampler2D u_framebuffer; uniform vec4 u_colorArr[11]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[11];
 
 	float remap ( float minval, float maxval, float curval ) {
 		return ( curval - minval ) / ( maxval - minval );
diff --git a/dist/visualHeatmap.esm.browser.min.js b/dist/visualHeatmap.esm.browser.min.js
index c41585a..4b1325d 100644
--- a/dist/visualHeatmap.esm.browser.min.js
+++ b/dist/visualHeatmap.esm.browser.min.js
@@ -1 +1 @@
-var t="\n\tprecision mediump float;\n\tuniform float u_max;\n\tuniform float u_blur;\n\tvarying float v_i;\n\tvoid main() {\n\t\tfloat r = 0.0; \n\t\tvec2 cxy = 2.0 * gl_PointCoord - 1.0;\n\t\tr = dot(cxy, cxy);\n\t\tif(r <= 1.0) {\n\t\t\tgl_FragColor = vec4(0, 0, 0, (v_i/u_max) * u_blur * (1.0 - sqrt(r)));\n\t\t}\n\t}",r="\n\tattribute vec2 a_position;\n\tattribute float a_intensity;\n\tuniform float u_size;\n\tuniform vec2 u_resolution;\n\tuniform vec2 u_translate; \n\tuniform float u_zoom; \n\tuniform float u_angle; \n\tuniform float u_density;\n\tvarying float v_i;\n\n\tvec2 rotation(vec2 v, float a) {\n\t\tfloat s = sin(a); float c = cos(a); mat2 m = mat2(c, -s, s, c); \n\t\treturn m * v;\n\t}\n\n\tvoid main() {\n\t\tvec2 zeroToOne = (a_position * u_density + u_translate * u_density) / (u_resolution);\n\t\tvec2 zeroToTwo = zeroToOne * 2.0 - 1.0;\n\t\tzeroToTwo = zeroToTwo / u_zoom;\n\t\tif (u_angle != 0.0) {\n\t\t\tzeroToTwo = rotation(zeroToTwo, u_angle);\n\t\t}\n\t\tgl_Position = vec4(zeroToTwo , 0, 1);\n\t\tgl_PointSize = u_size * u_density;\n\t\tv_i = a_intensity;\n\t}",o="\n\tprecision mediump float;\n\tvarying vec2 v_texCoord;\n\tuniform sampler2D u_framebuffer; uniform vec4 u_colorArr[100]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[100];\n\n\tfloat remap ( float minval, float maxval, float curval ) {\n\t\treturn ( curval - minval ) / ( maxval - minval );\n\t}\n\n\tvoid main() {\n\t\tfloat alpha = texture2D(u_framebuffer, v_texCoord.xy).a;\n\t\tif (alpha > 0.0 && alpha <= 1.0) {\n\t\t\tvec4 color_;\n\t\t\tif (alpha <= u_offset[0]) {\n\t\t\t\tcolor_ = u_colorArr[0];\n\t\t\t} else if (alpha <= u_offset[1]) {\n\t\t\t\tcolor_ = mix( u_colorArr[0], u_colorArr[1], remap( u_offset[0], u_offset[1], alpha ) );\n\t\t\t} else if (alpha <= u_offset[2]) {\n\t\t\t\tcolor_ = mix( u_colorArr[1], u_colorArr[2], remap( u_offset[1], u_offset[2], alpha ) );\n\t\t\t} else if (alpha <= u_offset[3]) {\n\t\t\t\tcolor_ = mix( u_colorArr[2], u_colorArr[3], remap( u_offset[2], u_offset[3], alpha ) );\n\t\t\t} else if (alpha <= u_offset[4]) {\n\t\t\t\tcolor_ = mix( u_colorArr[3], u_colorArr[4], remap( u_offset[3], u_offset[4], alpha ) );\n\t\t\t} else if (alpha <= u_offset[5]) {\n\t\t\t\tcolor_ = mix( u_colorArr[4], u_colorArr[5], remap( u_offset[4], u_offset[5], alpha ) );\n\t\t\t} else if (alpha <= u_offset[6]) {\n\t\t\t\tcolor_ = mix( u_colorArr[5], u_colorArr[6], remap( u_offset[5], u_offset[6], alpha ) );\n\t\t\t} else if (alpha <= u_offset[7]) {\n\t\t\t\tcolor_ = mix( u_colorArr[6], u_colorArr[7], remap( u_offset[6], u_offset[7], alpha ) );\n\t\t\t} else if (alpha <= u_offset[8]) {\n\t\t\t\tcolor_ = mix( u_colorArr[7], u_colorArr[8], remap( u_offset[7], u_offset[8], alpha ) );\n\t\t\t} else if (alpha <= u_offset[9]) {\n\t\t\t\tcolor_ = mix( u_colorArr[8], u_colorArr[9], remap( u_offset[8], u_offset[9], alpha ) );\n\t\t\t} else if (alpha <= u_offset[10]) {\n\t\t\t\tcolor_ = mix( u_colorArr[9], u_colorArr[10], remap( u_offset[9], u_offset[10], alpha ) );\n\t\t\t} else {\n\t\t\t\tcolor_ = vec4(0.0, 0.0, 0.0, 0.0);\n\t\t\t}\n\t\t\tcolor_.a = color_.a - (1.0 - u_opacity);\n\t\t\tif (color_.a < 0.0) {\n\t\t\t\tcolor_.a = 0.0;\n\t\t\t}\n\t\t\tgl_FragColor = color_;\n\t\t}\n\t}",e="\n\tattribute vec2 a_texCoord;\n\tvarying vec2 v_texCoord;\n\tvoid main() {\n\t\tvec2 clipSpace = a_texCoord * 2.0 - 1.0;\n\t\tgl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);\n\t\tv_texCoord = a_texCoord;\n\t}";export default function(a,i={}){function n(t,r,o){var e=t.createShader(t[r]);if(t.shaderSource(e,o),t.compileShader(e),!t.getShaderParameter(e,t.COMPILE_STATUS)){var a=t.getShaderInfoLog(e);console.error("*** Error compiling shader '"+e+"':"+a),t.deleteShader(e)}return e}let u,f,s,l=[],h=[],c=0;function _(a,i){const f=document.querySelector(a),s=f.clientHeight,l=f.clientWidth,h=document.createElement("canvas"),c=h.getContext("webgl",{premultipliedAlpha:!1,depth:!1,antialias:!0,alpha:!0,preserveDrawingBuffer:!1});u=function(t){return(window.devicePixelRatio||1)/(t.webkitBackingStorePixelRatio||t.mozBackingStorePixelRatio||t.msBackingStorePixelRatio||t.oBackingStorePixelRatio||t.backingStorePixelRatio||1)}(c),console.log(u),c.clearColor(0,0,0,0),c.enable(c.BLEND),c.blendEquation(c.FUNC_ADD),c.blendFunc(c.ONE,c.ONE_MINUS_SRC_ALPHA),c.depthMask(!0),h.setAttribute("height",s*u),h.setAttribute("width",l*u),h.style.height=`${s}px`,h.style.width=`${l}px`,h.style.position="absolute",f.appendChild(h),this.gradient=function(t){const r=[],o=t.length,e=[];return t.forEach((function(t){r.push(t.color[0]/255),r.push(t.color[1]/255),r.push(t.color[2]/255),r.push(void 0===t.color[3]?1:t.color[3]),e.push(t.offset)})),{value:new Float32Array(r),length:o,offset:e}}(i.gradient),this.ctx=c,this.width=l*u,this.height=s*u,this.layer=h,this.dom=f,this.gradShadOP=function(o){var e=n(o,"VERTEX_SHADER",r),a=n(o,"FRAGMENT_SHADER",t),i=o.createProgram();if(o.attachShader(i,e),o.attachShader(i,a),o.linkProgram(i),!o.getProgramParameter(i,o.LINK_STATUS)){var u=o.getProgramInfoLog(i);console.error("Error in program linking:"+u),o.deleteProgram(i)}return{program:i,attr:[{bufferType:o.ARRAY_BUFFER,buffer:o.createBuffer(),drawType:o.STATIC_DRAW,valueType:o.FLOAT,size:2,attribute:o.getAttribLocation(i,"a_position"),data:new Float32Array([])},{bufferType:o.ARRAY_BUFFER,buffer:o.createBuffer(),drawType:o.STATIC_DRAW,valueType:o.FLOAT,size:1,attribute:o.getAttribLocation(i,"a_intensity"),data:new Float32Array([])}],uniform:{u_resolution:o.getUniformLocation(i,"u_resolution"),u_max:o.getUniformLocation(i,"u_max"),u_size:o.getUniformLocation(i,"u_size"),u_blur:o.getUniformLocation(i,"u_blur"),u_translate:o.getUniformLocation(i,"u_translate"),u_zoom:o.getUniformLocation(i,"u_zoom"),u_angle:o.getUniformLocation(i,"u_angle"),u_density:o.getUniformLocation(i,"u_density")}}}(this.ctx),this.colorShadOP=function(t){var r=n(t,"VERTEX_SHADER",e),a=n(t,"FRAGMENT_SHADER",o),i=t.createProgram();if(t.attachShader(i,r),t.attachShader(i,a),t.linkProgram(i),!t.getProgramParameter(i,t.LINK_STATUS)){var u=t.getProgramInfoLog(i);console.error("Error in program linking:"+u),t.deleteProgram(i)}return{program:i,attr:[{bufferType:t.ARRAY_BUFFER,buffer:t.createBuffer(),drawType:t.STATIC_DRAW,valueType:t.FLOAT,size:2,attribute:t.getAttribLocation(i,"a_texCoord"),data:new Float32Array([0,0,1,0,0,1,0,1,1,0,1,1])}],uniform:{u_framebuffer:t.getUniformLocation(i,"u_framebuffer"),u_colorArr:t.getUniformLocation(i,"u_colorArr"),u_colorCount:t.getUniformLocation(i,"u_colorCount"),u_opacity:t.getUniformLocation(i,"u_opacity"),u_offset:t.getUniformLocation(i,"u_offset")}}}(this.ctx),this.fbTexObj=c.createTexture(),this.fbo=c.createFramebuffer(),this.size=i.size?i.size:20,this.max=i.max?i.max:1/0,this.blur=i.blur?i.blur:1,this.translate=i.translate&&2===i.translate.length?i.translate:[0,0],this.zoom=i.zoom?i.zoom:1,this.angle=i.rotationAngle?i.rotationAngle:0,this.opacity=i.opacity?i.opacity:1,this.ratio=u,this.rawData=[],c.viewport(0,0,c.canvas.width,c.canvas.height)}function m(t){const r=this.width/(2*u),o=this.height/(2*u);if(t.x-=r,t.y-=o,t.x/=r,t.y/=o,t.x=t.x*this.zoom,t.y=t.y*this.zoom,0!==this.angle){const r=Math.cos(this.angle),o=Math.sin(this.angle),e=t.x,a=t.y;t.x=r*e+-o*a,t.y=o*e+r*a}t.x*=r,t.y*=o,t.x+=r,t.y+=o,t.x-=this.translate[0],t.y-=this.translate[1]}return _.prototype.resize=function(){const t=this.dom.clientHeight,r=this.dom.clientWidth;this.layer.setAttribute("height",t*u),this.layer.setAttribute("width",r*u),this.layer.style.height=`${t}px`,this.layer.style.width=`${r}px`,this.width=r*u,this.height=t*u,this.ctx.viewport(0,0,this.width,this.height),this.render(this.exData)},_.prototype.clear=function(){this.ctx.clear(this.ctx.COLOR_BUFFER_BIT|this.ctx.DEPTH_BUFFER_BIT)},_.prototype.setMax=function(t){this.max=t,this.render(this.exData)},_.prototype.setTranslate=function(t){this.translate=2===t.length?t:[0,0],this.render(this.exData)},_.prototype.setZoom=function(t){this.zoom=void 0!==t?t:1,this.render(this.exData)},_.prototype.setRotationAngle=function(t){this.angle=void 0!==t?t:0,this.render(this.exData)},_.prototype.setSize=function(t){this.size=void 0!==t?t:20,this.render(this.exData)},_.prototype.setBlur=function(t){this.blur=void 0!==t?t:1,this.render(this.exData)},_.prototype.setOpacity=function(t){this.opacity=void 0!==t?t:1,this.render(this.exData)},_.prototype.addData=function(t,r){const o=this;for(let e=0;e<t.length;e++)r&&m.call(o,t[e]),this.rawData.push(t[e]);this.renderData(this.rawData)},_.prototype.renderData=function(t){const r=function(t){const r=t.length;c!==r&&(f=new ArrayBuffer(8*r),l=new Float32Array(f),s=new ArrayBuffer(4*r),h=new Float32Array(s),c=r);for(let o=0;o<r;o++)l[2*o]=t[o].x,l[2*o+1]=t[o].y,h[o]=t[o].value;return{posVec:l,rVec:h}}(t);this.rawData=t,this.render(r)},_.prototype.render=function(t){const r=this.ctx;this.exData=t,this.gradShadOP.attr[0].data=t.posVec,this.gradShadOP.attr[1].data=t.rVec,r.clear(r.COLOR_BUFFER_BIT|r.DEPTH_BUFFER_BIT),r.useProgram(this.gradShadOP.program),r.uniform2fv(this.gradShadOP.uniform.u_resolution,new Float32Array([this.width,this.height])),r.uniform2fv(this.gradShadOP.uniform.u_translate,new Float32Array([this.translate[0],this.translate[1]])),r.uniform1f(this.gradShadOP.uniform.u_zoom,this.zoom?this.zoom:.01),r.uniform1f(this.gradShadOP.uniform.u_angle,this.angle),r.uniform1f(this.gradShadOP.uniform.u_density,this.ratio),r.uniform1f(this.gradShadOP.uniform.u_max,this.max),r.uniform1f(this.gradShadOP.uniform.u_size,this.size),r.uniform1f(this.gradShadOP.uniform.u_blur,this.blur),this.gradShadOP.attr.forEach((function(t){r.bindBuffer(t.bufferType,t.buffer),r.bufferData(t.bufferType,t.data,t.drawType),r.enableVertexAttribArray(t.attribute),r.vertexAttribPointer(t.attribute,t.size,t.valueType,!0,0,0)})),r.bindTexture(r.TEXTURE_2D,this.fbTexObj),r.texImage2D(r.TEXTURE_2D,0,r.RGBA,this.width,this.height,0,r.RGBA,r.UNSIGNED_BYTE,null),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_S,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_T,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MIN_FILTER,r.LINEAR),r.bindFramebuffer(r.FRAMEBUFFER,this.fbo),r.framebufferTexture2D(r.FRAMEBUFFER,r.COLOR_ATTACHMENT0,r.TEXTURE_2D,this.fbTexObj,0),r.drawArrays(r.POINTS,0,t.posVec.length/2),r.bindFramebuffer(r.FRAMEBUFFER,null),r.useProgram(this.colorShadOP.program),r.uniform4fv(this.colorShadOP.uniform.u_colorArr,this.gradient.value),r.uniform1f(this.colorShadOP.uniform.u_colorCount,this.gradient.length),r.uniform1fv(this.colorShadOP.uniform.u_offset,new Float32Array(this.gradient.offset)),r.uniform1f(this.colorShadOP.uniform.u_opacity,this.opacity),this.colorShadOP.attr.forEach((function(t){r.bindBuffer(t.bufferType,t.buffer),r.bufferData(t.bufferType,t.data,t.drawType),r.enableVertexAttribArray(t.attribute),r.vertexAttribPointer(t.attribute,t.size,t.valueType,!0,0,0)})),r.uniform1i(this.colorShadOP.uniform.u_framebuffer,0),r.activeTexture(r.TEXTURE0),r.bindTexture(r.TEXTURE_2D,this.fbTexObj),r.drawArrays(r.TRIANGLES,0,6)},new _(a,i)}
\ No newline at end of file
+var t="\n\tprecision mediump float;\n\tuniform float u_max;\n\tuniform float u_blur;\n\tvarying float v_i;\n\tvoid main() {\n\t\tfloat r = 0.0; \n\t\tvec2 cxy = 2.0 * gl_PointCoord - 1.0;\n\t\tr = dot(cxy, cxy);\n\t\tif(r <= 1.0) {\n\t\t\tgl_FragColor = vec4(0, 0, 0, (v_i/u_max) * u_blur * (1.0 - sqrt(r)));\n\t\t}\n\t}",r="\n\tattribute vec2 a_position;\n\tattribute float a_intensity;\n\tuniform float u_size;\n\tuniform vec2 u_resolution;\n\tuniform vec2 u_translate; \n\tuniform float u_zoom; \n\tuniform float u_angle; \n\tuniform float u_density;\n\tvarying float v_i;\n\n\tvec2 rotation(vec2 v, float a) {\n\t\tfloat s = sin(a); float c = cos(a); mat2 m = mat2(c, -s, s, c); \n\t\treturn m * v;\n\t}\n\n\tvoid main() {\n\t\tvec2 zeroToOne = (a_position * u_density + u_translate * u_density) / (u_resolution);\n\t\tvec2 zeroToTwo = zeroToOne * 2.0 - 1.0;\n\t\tzeroToTwo = zeroToTwo / u_zoom;\n\t\tif (u_angle != 0.0) {\n\t\t\tzeroToTwo = rotation(zeroToTwo, u_angle);\n\t\t}\n\t\tgl_Position = vec4(zeroToTwo , 0, 1);\n\t\tgl_PointSize = u_size * u_density;\n\t\tv_i = a_intensity;\n\t}",o="\n\tprecision mediump float;\n\tvarying vec2 v_texCoord;\n\tuniform sampler2D u_framebuffer; uniform vec4 u_colorArr[11]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[11];\n\n\tfloat remap ( float minval, float maxval, float curval ) {\n\t\treturn ( curval - minval ) / ( maxval - minval );\n\t}\n\n\tvoid main() {\n\t\tfloat alpha = texture2D(u_framebuffer, v_texCoord.xy).a;\n\t\tif (alpha > 0.0 && alpha <= 1.0) {\n\t\t\tvec4 color_;\n\t\t\tif (alpha <= u_offset[0]) {\n\t\t\t\tcolor_ = u_colorArr[0];\n\t\t\t} else if (alpha <= u_offset[1]) {\n\t\t\t\tcolor_ = mix( u_colorArr[0], u_colorArr[1], remap( u_offset[0], u_offset[1], alpha ) );\n\t\t\t} else if (alpha <= u_offset[2]) {\n\t\t\t\tcolor_ = mix( u_colorArr[1], u_colorArr[2], remap( u_offset[1], u_offset[2], alpha ) );\n\t\t\t} else if (alpha <= u_offset[3]) {\n\t\t\t\tcolor_ = mix( u_colorArr[2], u_colorArr[3], remap( u_offset[2], u_offset[3], alpha ) );\n\t\t\t} else if (alpha <= u_offset[4]) {\n\t\t\t\tcolor_ = mix( u_colorArr[3], u_colorArr[4], remap( u_offset[3], u_offset[4], alpha ) );\n\t\t\t} else if (alpha <= u_offset[5]) {\n\t\t\t\tcolor_ = mix( u_colorArr[4], u_colorArr[5], remap( u_offset[4], u_offset[5], alpha ) );\n\t\t\t} else if (alpha <= u_offset[6]) {\n\t\t\t\tcolor_ = mix( u_colorArr[5], u_colorArr[6], remap( u_offset[5], u_offset[6], alpha ) );\n\t\t\t} else if (alpha <= u_offset[7]) {\n\t\t\t\tcolor_ = mix( u_colorArr[6], u_colorArr[7], remap( u_offset[6], u_offset[7], alpha ) );\n\t\t\t} else if (alpha <= u_offset[8]) {\n\t\t\t\tcolor_ = mix( u_colorArr[7], u_colorArr[8], remap( u_offset[7], u_offset[8], alpha ) );\n\t\t\t} else if (alpha <= u_offset[9]) {\n\t\t\t\tcolor_ = mix( u_colorArr[8], u_colorArr[9], remap( u_offset[8], u_offset[9], alpha ) );\n\t\t\t} else if (alpha <= u_offset[10]) {\n\t\t\t\tcolor_ = mix( u_colorArr[9], u_colorArr[10], remap( u_offset[9], u_offset[10], alpha ) );\n\t\t\t} else {\n\t\t\t\tcolor_ = vec4(0.0, 0.0, 0.0, 0.0);\n\t\t\t}\n\t\t\tcolor_.a = color_.a - (1.0 - u_opacity);\n\t\t\tif (color_.a < 0.0) {\n\t\t\t\tcolor_.a = 0.0;\n\t\t\t}\n\t\t\tgl_FragColor = color_;\n\t\t}\n\t}",e="\n\tattribute vec2 a_texCoord;\n\tvarying vec2 v_texCoord;\n\tvoid main() {\n\t\tvec2 clipSpace = a_texCoord * 2.0 - 1.0;\n\t\tgl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);\n\t\tv_texCoord = a_texCoord;\n\t}";export default function(a,i={}){function n(t,r,o){var e=t.createShader(t[r]);if(t.shaderSource(e,o),t.compileShader(e),!t.getShaderParameter(e,t.COMPILE_STATUS)){var a=t.getShaderInfoLog(e);console.error("*** Error compiling shader '"+e+"':"+a),t.deleteShader(e)}return e}let u,f,s,l=[],h=[],c=0;function _(a,i){const f=document.querySelector(a),s=f.clientHeight,l=f.clientWidth,h=document.createElement("canvas"),c=h.getContext("webgl",{premultipliedAlpha:!1,depth:!1,antialias:!0,alpha:!0,preserveDrawingBuffer:!1});u=function(t){return(window.devicePixelRatio||1)/(t.webkitBackingStorePixelRatio||t.mozBackingStorePixelRatio||t.msBackingStorePixelRatio||t.oBackingStorePixelRatio||t.backingStorePixelRatio||1)}(c),console.log(u),c.clearColor(0,0,0,0),c.enable(c.BLEND),c.blendEquation(c.FUNC_ADD),c.blendFunc(c.ONE,c.ONE_MINUS_SRC_ALPHA),c.depthMask(!0),h.setAttribute("height",s*u),h.setAttribute("width",l*u),h.style.height=`${s}px`,h.style.width=`${l}px`,h.style.position="absolute",f.appendChild(h),this.gradient=function(t){const r=[],o=t.length,e=[];return t.forEach((function(t){r.push(t.color[0]/255),r.push(t.color[1]/255),r.push(t.color[2]/255),r.push(void 0===t.color[3]?1:t.color[3]),e.push(t.offset)})),{value:new Float32Array(r),length:o,offset:e}}(i.gradient),this.ctx=c,this.width=l*u,this.height=s*u,this.layer=h,this.dom=f,this.gradShadOP=function(o){var e=n(o,"VERTEX_SHADER",r),a=n(o,"FRAGMENT_SHADER",t),i=o.createProgram();if(o.attachShader(i,e),o.attachShader(i,a),o.linkProgram(i),!o.getProgramParameter(i,o.LINK_STATUS)){var u=o.getProgramInfoLog(i);console.error("Error in program linking:"+u),o.deleteProgram(i)}return{program:i,attr:[{bufferType:o.ARRAY_BUFFER,buffer:o.createBuffer(),drawType:o.STATIC_DRAW,valueType:o.FLOAT,size:2,attribute:o.getAttribLocation(i,"a_position"),data:new Float32Array([])},{bufferType:o.ARRAY_BUFFER,buffer:o.createBuffer(),drawType:o.STATIC_DRAW,valueType:o.FLOAT,size:1,attribute:o.getAttribLocation(i,"a_intensity"),data:new Float32Array([])}],uniform:{u_resolution:o.getUniformLocation(i,"u_resolution"),u_max:o.getUniformLocation(i,"u_max"),u_size:o.getUniformLocation(i,"u_size"),u_blur:o.getUniformLocation(i,"u_blur"),u_translate:o.getUniformLocation(i,"u_translate"),u_zoom:o.getUniformLocation(i,"u_zoom"),u_angle:o.getUniformLocation(i,"u_angle"),u_density:o.getUniformLocation(i,"u_density")}}}(this.ctx),this.colorShadOP=function(t){var r=n(t,"VERTEX_SHADER",e),a=n(t,"FRAGMENT_SHADER",o),i=t.createProgram();if(t.attachShader(i,r),t.attachShader(i,a),t.linkProgram(i),!t.getProgramParameter(i,t.LINK_STATUS)){var u=t.getProgramInfoLog(i);console.error("Error in program linking:"+u),t.deleteProgram(i)}return{program:i,attr:[{bufferType:t.ARRAY_BUFFER,buffer:t.createBuffer(),drawType:t.STATIC_DRAW,valueType:t.FLOAT,size:2,attribute:t.getAttribLocation(i,"a_texCoord"),data:new Float32Array([0,0,1,0,0,1,0,1,1,0,1,1])}],uniform:{u_framebuffer:t.getUniformLocation(i,"u_framebuffer"),u_colorArr:t.getUniformLocation(i,"u_colorArr"),u_colorCount:t.getUniformLocation(i,"u_colorCount"),u_opacity:t.getUniformLocation(i,"u_opacity"),u_offset:t.getUniformLocation(i,"u_offset")}}}(this.ctx),this.fbTexObj=c.createTexture(),this.fbo=c.createFramebuffer(),this.size=i.size?i.size:20,this.max=i.max?i.max:1/0,this.blur=i.blur?i.blur:1,this.translate=i.translate&&2===i.translate.length?i.translate:[0,0],this.zoom=i.zoom?i.zoom:1,this.angle=i.rotationAngle?i.rotationAngle:0,this.opacity=i.opacity?i.opacity:1,this.ratio=u,this.rawData=[],c.viewport(0,0,c.canvas.width,c.canvas.height)}function m(t){const r=this.width/(2*u),o=this.height/(2*u);if(t.x-=r,t.y-=o,t.x/=r,t.y/=o,t.x=t.x*this.zoom,t.y=t.y*this.zoom,0!==this.angle){const r=Math.cos(this.angle),o=Math.sin(this.angle),e=t.x,a=t.y;t.x=r*e+-o*a,t.y=o*e+r*a}t.x*=r,t.y*=o,t.x+=r,t.y+=o,t.x-=this.translate[0],t.y-=this.translate[1]}return _.prototype.resize=function(){const t=this.dom.clientHeight,r=this.dom.clientWidth;this.layer.setAttribute("height",t*u),this.layer.setAttribute("width",r*u),this.layer.style.height=`${t}px`,this.layer.style.width=`${r}px`,this.width=r*u,this.height=t*u,this.ctx.viewport(0,0,this.width,this.height),this.render(this.exData)},_.prototype.clear=function(){this.ctx.clear(this.ctx.COLOR_BUFFER_BIT|this.ctx.DEPTH_BUFFER_BIT)},_.prototype.setMax=function(t){this.max=t,this.render(this.exData)},_.prototype.setTranslate=function(t){this.translate=2===t.length?t:[0,0],this.render(this.exData)},_.prototype.setZoom=function(t){this.zoom=void 0!==t?t:1,this.render(this.exData)},_.prototype.setRotationAngle=function(t){this.angle=void 0!==t?t:0,this.render(this.exData)},_.prototype.setSize=function(t){this.size=void 0!==t?t:20,this.render(this.exData)},_.prototype.setBlur=function(t){this.blur=void 0!==t?t:1,this.render(this.exData)},_.prototype.setOpacity=function(t){this.opacity=void 0!==t?t:1,this.render(this.exData)},_.prototype.addData=function(t,r){const o=this;for(let e=0;e<t.length;e++)r&&m.call(o,t[e]),this.rawData.push(t[e]);this.renderData(this.rawData)},_.prototype.renderData=function(t){const r=function(t){const r=t.length;c!==r&&(f=new ArrayBuffer(8*r),l=new Float32Array(f),s=new ArrayBuffer(4*r),h=new Float32Array(s),c=r);for(let o=0;o<r;o++)l[2*o]=t[o].x,l[2*o+1]=t[o].y,h[o]=t[o].value;return{posVec:l,rVec:h}}(t);this.rawData=t,this.render(r)},_.prototype.render=function(t){const r=this.ctx;this.exData=t,this.gradShadOP.attr[0].data=t.posVec,this.gradShadOP.attr[1].data=t.rVec,r.clear(r.COLOR_BUFFER_BIT|r.DEPTH_BUFFER_BIT),r.useProgram(this.gradShadOP.program),r.uniform2fv(this.gradShadOP.uniform.u_resolution,new Float32Array([this.width,this.height])),r.uniform2fv(this.gradShadOP.uniform.u_translate,new Float32Array([this.translate[0],this.translate[1]])),r.uniform1f(this.gradShadOP.uniform.u_zoom,this.zoom?this.zoom:.01),r.uniform1f(this.gradShadOP.uniform.u_angle,this.angle),r.uniform1f(this.gradShadOP.uniform.u_density,this.ratio),r.uniform1f(this.gradShadOP.uniform.u_max,this.max),r.uniform1f(this.gradShadOP.uniform.u_size,this.size),r.uniform1f(this.gradShadOP.uniform.u_blur,this.blur),this.gradShadOP.attr.forEach((function(t){r.bindBuffer(t.bufferType,t.buffer),r.bufferData(t.bufferType,t.data,t.drawType),r.enableVertexAttribArray(t.attribute),r.vertexAttribPointer(t.attribute,t.size,t.valueType,!0,0,0)})),r.bindTexture(r.TEXTURE_2D,this.fbTexObj),r.texImage2D(r.TEXTURE_2D,0,r.RGBA,this.width,this.height,0,r.RGBA,r.UNSIGNED_BYTE,null),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_S,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_T,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MIN_FILTER,r.LINEAR),r.bindFramebuffer(r.FRAMEBUFFER,this.fbo),r.framebufferTexture2D(r.FRAMEBUFFER,r.COLOR_ATTACHMENT0,r.TEXTURE_2D,this.fbTexObj,0),r.drawArrays(r.POINTS,0,t.posVec.length/2),r.bindFramebuffer(r.FRAMEBUFFER,null),r.useProgram(this.colorShadOP.program),r.uniform4fv(this.colorShadOP.uniform.u_colorArr,this.gradient.value),r.uniform1f(this.colorShadOP.uniform.u_colorCount,this.gradient.length),r.uniform1fv(this.colorShadOP.uniform.u_offset,new Float32Array(this.gradient.offset)),r.uniform1f(this.colorShadOP.uniform.u_opacity,this.opacity),this.colorShadOP.attr.forEach((function(t){r.bindBuffer(t.bufferType,t.buffer),r.bufferData(t.bufferType,t.data,t.drawType),r.enableVertexAttribArray(t.attribute),r.vertexAttribPointer(t.attribute,t.size,t.valueType,!0,0,0)})),r.uniform1i(this.colorShadOP.uniform.u_framebuffer,0),r.activeTexture(r.TEXTURE0),r.bindTexture(r.TEXTURE_2D,this.fbTexObj),r.drawArrays(r.TRIANGLES,0,6)},new _(a,i)}
\ No newline at end of file
diff --git a/dist/visualHeatmap.js b/dist/visualHeatmap.js
index 37e0c2d..8a57bfe 100644
--- a/dist/visualHeatmap.js
+++ b/dist/visualHeatmap.js
@@ -1,6 +1,6 @@
 /*!
-      * Heatmap v1.0.3
-      * (c) 2019 Narayana Swamy (narayanaswamy14@gmail.com)
+      * Heatmap v1.0.5
+      * (c) 2023 Narayana Swamy (narayanaswamy14@gmail.com)
       * @license BSD-3-Clause
       */
 (function (global, factory) {
@@ -65,7 +65,7 @@
 	var ColorfragmentShader = `
 	precision mediump float;
 	varying vec2 v_texCoord;
-	uniform sampler2D u_framebuffer; uniform vec4 u_colorArr[100]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[100];
+	uniform sampler2D u_framebuffer; uniform vec4 u_colorArr[11]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[11];
 
 	float remap ( float minval, float maxval, float curval ) {
 		return ( curval - minval ) / ( maxval - minval );
diff --git a/dist/visualHeatmap.legacy.js b/dist/visualHeatmap.legacy.js
index 57e0e4c..67f81dc 100644
--- a/dist/visualHeatmap.legacy.js
+++ b/dist/visualHeatmap.legacy.js
@@ -1,6 +1,6 @@
 /*!
-      * Heatmap v1.0.3
-      * (c) 2019 Narayana Swamy (narayanaswamy14@gmail.com)
+      * Heatmap v1.0.5
+      * (c) 2023 Narayana Swamy (narayanaswamy14@gmail.com)
       * @license BSD-3-Clause
       */
 (function (global, factory) {
@@ -24,7 +24,7 @@
 
 	var GradvertexShader = "\n\tattribute vec2 a_position;\n\tattribute float a_intensity;\n\tuniform float u_size;\n\tuniform vec2 u_resolution;\n\tuniform vec2 u_translate; \n\tuniform float u_zoom; \n\tuniform float u_angle; \n\tuniform float u_density;\n\tvarying float v_i;\n\n\tvec2 rotation(vec2 v, float a) {\n\t\tfloat s = sin(a); float c = cos(a); mat2 m = mat2(c, -s, s, c); \n\t\treturn m * v;\n\t}\n\n\tvoid main() {\n\t\tvec2 zeroToOne = (a_position * u_density + u_translate * u_density) / (u_resolution);\n\t\tvec2 zeroToTwo = zeroToOne * 2.0 - 1.0;\n\t\tzeroToTwo = zeroToTwo / u_zoom;\n\t\tif (u_angle != 0.0) {\n\t\t\tzeroToTwo = rotation(zeroToTwo, u_angle);\n\t\t}\n\t\tgl_Position = vec4(zeroToTwo , 0, 1);\n\t\tgl_PointSize = u_size * u_density;\n\t\tv_i = a_intensity;\n\t}";
 
-	var ColorfragmentShader = "\n\tprecision mediump float;\n\tvarying vec2 v_texCoord;\n\tuniform sampler2D u_framebuffer; uniform vec4 u_colorArr[100]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[100];\n\n\tfloat remap ( float minval, float maxval, float curval ) {\n\t\treturn ( curval - minval ) / ( maxval - minval );\n\t}\n\n\tvoid main() {\n\t\tfloat alpha = texture2D(u_framebuffer, v_texCoord.xy).a;\n\t\tif (alpha > 0.0 && alpha <= 1.0) {\n\t\t\tvec4 color_;\n\t\t\tif (alpha <= u_offset[0]) {\n\t\t\t\tcolor_ = u_colorArr[0];\n\t\t\t} else if (alpha <= u_offset[1]) {\n\t\t\t\tcolor_ = mix( u_colorArr[0], u_colorArr[1], remap( u_offset[0], u_offset[1], alpha ) );\n\t\t\t} else if (alpha <= u_offset[2]) {\n\t\t\t\tcolor_ = mix( u_colorArr[1], u_colorArr[2], remap( u_offset[1], u_offset[2], alpha ) );\n\t\t\t} else if (alpha <= u_offset[3]) {\n\t\t\t\tcolor_ = mix( u_colorArr[2], u_colorArr[3], remap( u_offset[2], u_offset[3], alpha ) );\n\t\t\t} else if (alpha <= u_offset[4]) {\n\t\t\t\tcolor_ = mix( u_colorArr[3], u_colorArr[4], remap( u_offset[3], u_offset[4], alpha ) );\n\t\t\t} else if (alpha <= u_offset[5]) {\n\t\t\t\tcolor_ = mix( u_colorArr[4], u_colorArr[5], remap( u_offset[4], u_offset[5], alpha ) );\n\t\t\t} else if (alpha <= u_offset[6]) {\n\t\t\t\tcolor_ = mix( u_colorArr[5], u_colorArr[6], remap( u_offset[5], u_offset[6], alpha ) );\n\t\t\t} else if (alpha <= u_offset[7]) {\n\t\t\t\tcolor_ = mix( u_colorArr[6], u_colorArr[7], remap( u_offset[6], u_offset[7], alpha ) );\n\t\t\t} else if (alpha <= u_offset[8]) {\n\t\t\t\tcolor_ = mix( u_colorArr[7], u_colorArr[8], remap( u_offset[7], u_offset[8], alpha ) );\n\t\t\t} else if (alpha <= u_offset[9]) {\n\t\t\t\tcolor_ = mix( u_colorArr[8], u_colorArr[9], remap( u_offset[8], u_offset[9], alpha ) );\n\t\t\t} else if (alpha <= u_offset[10]) {\n\t\t\t\tcolor_ = mix( u_colorArr[9], u_colorArr[10], remap( u_offset[9], u_offset[10], alpha ) );\n\t\t\t} else {\n\t\t\t\tcolor_ = vec4(0.0, 0.0, 0.0, 0.0);\n\t\t\t}\n\t\t\tcolor_.a = color_.a - (1.0 - u_opacity);\n\t\t\tif (color_.a < 0.0) {\n\t\t\t\tcolor_.a = 0.0;\n\t\t\t}\n\t\t\tgl_FragColor = color_;\n\t\t}\n\t}";
+	var ColorfragmentShader = "\n\tprecision mediump float;\n\tvarying vec2 v_texCoord;\n\tuniform sampler2D u_framebuffer; uniform vec4 u_colorArr[11]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[11];\n\n\tfloat remap ( float minval, float maxval, float curval ) {\n\t\treturn ( curval - minval ) / ( maxval - minval );\n\t}\n\n\tvoid main() {\n\t\tfloat alpha = texture2D(u_framebuffer, v_texCoord.xy).a;\n\t\tif (alpha > 0.0 && alpha <= 1.0) {\n\t\t\tvec4 color_;\n\t\t\tif (alpha <= u_offset[0]) {\n\t\t\t\tcolor_ = u_colorArr[0];\n\t\t\t} else if (alpha <= u_offset[1]) {\n\t\t\t\tcolor_ = mix( u_colorArr[0], u_colorArr[1], remap( u_offset[0], u_offset[1], alpha ) );\n\t\t\t} else if (alpha <= u_offset[2]) {\n\t\t\t\tcolor_ = mix( u_colorArr[1], u_colorArr[2], remap( u_offset[1], u_offset[2], alpha ) );\n\t\t\t} else if (alpha <= u_offset[3]) {\n\t\t\t\tcolor_ = mix( u_colorArr[2], u_colorArr[3], remap( u_offset[2], u_offset[3], alpha ) );\n\t\t\t} else if (alpha <= u_offset[4]) {\n\t\t\t\tcolor_ = mix( u_colorArr[3], u_colorArr[4], remap( u_offset[3], u_offset[4], alpha ) );\n\t\t\t} else if (alpha <= u_offset[5]) {\n\t\t\t\tcolor_ = mix( u_colorArr[4], u_colorArr[5], remap( u_offset[4], u_offset[5], alpha ) );\n\t\t\t} else if (alpha <= u_offset[6]) {\n\t\t\t\tcolor_ = mix( u_colorArr[5], u_colorArr[6], remap( u_offset[5], u_offset[6], alpha ) );\n\t\t\t} else if (alpha <= u_offset[7]) {\n\t\t\t\tcolor_ = mix( u_colorArr[6], u_colorArr[7], remap( u_offset[6], u_offset[7], alpha ) );\n\t\t\t} else if (alpha <= u_offset[8]) {\n\t\t\t\tcolor_ = mix( u_colorArr[7], u_colorArr[8], remap( u_offset[7], u_offset[8], alpha ) );\n\t\t\t} else if (alpha <= u_offset[9]) {\n\t\t\t\tcolor_ = mix( u_colorArr[8], u_colorArr[9], remap( u_offset[8], u_offset[9], alpha ) );\n\t\t\t} else if (alpha <= u_offset[10]) {\n\t\t\t\tcolor_ = mix( u_colorArr[9], u_colorArr[10], remap( u_offset[9], u_offset[10], alpha ) );\n\t\t\t} else {\n\t\t\t\tcolor_ = vec4(0.0, 0.0, 0.0, 0.0);\n\t\t\t}\n\t\t\tcolor_.a = color_.a - (1.0 - u_opacity);\n\t\t\tif (color_.a < 0.0) {\n\t\t\t\tcolor_.a = 0.0;\n\t\t\t}\n\t\t\tgl_FragColor = color_;\n\t\t}\n\t}";
 
 	var ColorvertexShader = "\n\tattribute vec2 a_texCoord;\n\tvarying vec2 v_texCoord;\n\tvoid main() {\n\t\tvec2 clipSpace = a_texCoord * 2.0 - 1.0;\n\t\tgl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);\n\t\tv_texCoord = a_texCoord;\n\t}";
 
diff --git a/dist/visualHeatmap.legacy.min.js b/dist/visualHeatmap.legacy.min.js
index 1320a91..50c5256 100644
--- a/dist/visualHeatmap.legacy.min.js
+++ b/dist/visualHeatmap.legacy.min.js
@@ -1 +1 @@
-!function(t,r){"object"==typeof exports&&"undefined"!=typeof module?module.exports=r():"function"==typeof define&&define.amd?define(r):(t=t||self).visualHeatmap=r()}(this,(function(){"use strict";var t="\n\tprecision mediump float;\n\tuniform float u_max;\n\tuniform float u_blur;\n\tvarying float v_i;\n\tvoid main() {\n\t\tfloat r = 0.0; \n\t\tvec2 cxy = 2.0 * gl_PointCoord - 1.0;\n\t\tr = dot(cxy, cxy);\n\t\tif(r <= 1.0) {\n\t\t\tgl_FragColor = vec4(0, 0, 0, (v_i/u_max) * u_blur * (1.0 - sqrt(r)));\n\t\t}\n\t}",r="\n\tattribute vec2 a_position;\n\tattribute float a_intensity;\n\tuniform float u_size;\n\tuniform vec2 u_resolution;\n\tuniform vec2 u_translate; \n\tuniform float u_zoom; \n\tuniform float u_angle; \n\tuniform float u_density;\n\tvarying float v_i;\n\n\tvec2 rotation(vec2 v, float a) {\n\t\tfloat s = sin(a); float c = cos(a); mat2 m = mat2(c, -s, s, c); \n\t\treturn m * v;\n\t}\n\n\tvoid main() {\n\t\tvec2 zeroToOne = (a_position * u_density + u_translate * u_density) / (u_resolution);\n\t\tvec2 zeroToTwo = zeroToOne * 2.0 - 1.0;\n\t\tzeroToTwo = zeroToTwo / u_zoom;\n\t\tif (u_angle != 0.0) {\n\t\t\tzeroToTwo = rotation(zeroToTwo, u_angle);\n\t\t}\n\t\tgl_Position = vec4(zeroToTwo , 0, 1);\n\t\tgl_PointSize = u_size * u_density;\n\t\tv_i = a_intensity;\n\t}",e="\n\tprecision mediump float;\n\tvarying vec2 v_texCoord;\n\tuniform sampler2D u_framebuffer; uniform vec4 u_colorArr[100]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[100];\n\n\tfloat remap ( float minval, float maxval, float curval ) {\n\t\treturn ( curval - minval ) / ( maxval - minval );\n\t}\n\n\tvoid main() {\n\t\tfloat alpha = texture2D(u_framebuffer, v_texCoord.xy).a;\n\t\tif (alpha > 0.0 && alpha <= 1.0) {\n\t\t\tvec4 color_;\n\t\t\tif (alpha <= u_offset[0]) {\n\t\t\t\tcolor_ = u_colorArr[0];\n\t\t\t} else if (alpha <= u_offset[1]) {\n\t\t\t\tcolor_ = mix( u_colorArr[0], u_colorArr[1], remap( u_offset[0], u_offset[1], alpha ) );\n\t\t\t} else if (alpha <= u_offset[2]) {\n\t\t\t\tcolor_ = mix( u_colorArr[1], u_colorArr[2], remap( u_offset[1], u_offset[2], alpha ) );\n\t\t\t} else if (alpha <= u_offset[3]) {\n\t\t\t\tcolor_ = mix( u_colorArr[2], u_colorArr[3], remap( u_offset[2], u_offset[3], alpha ) );\n\t\t\t} else if (alpha <= u_offset[4]) {\n\t\t\t\tcolor_ = mix( u_colorArr[3], u_colorArr[4], remap( u_offset[3], u_offset[4], alpha ) );\n\t\t\t} else if (alpha <= u_offset[5]) {\n\t\t\t\tcolor_ = mix( u_colorArr[4], u_colorArr[5], remap( u_offset[4], u_offset[5], alpha ) );\n\t\t\t} else if (alpha <= u_offset[6]) {\n\t\t\t\tcolor_ = mix( u_colorArr[5], u_colorArr[6], remap( u_offset[5], u_offset[6], alpha ) );\n\t\t\t} else if (alpha <= u_offset[7]) {\n\t\t\t\tcolor_ = mix( u_colorArr[6], u_colorArr[7], remap( u_offset[6], u_offset[7], alpha ) );\n\t\t\t} else if (alpha <= u_offset[8]) {\n\t\t\t\tcolor_ = mix( u_colorArr[7], u_colorArr[8], remap( u_offset[7], u_offset[8], alpha ) );\n\t\t\t} else if (alpha <= u_offset[9]) {\n\t\t\t\tcolor_ = mix( u_colorArr[8], u_colorArr[9], remap( u_offset[8], u_offset[9], alpha ) );\n\t\t\t} else if (alpha <= u_offset[10]) {\n\t\t\t\tcolor_ = mix( u_colorArr[9], u_colorArr[10], remap( u_offset[9], u_offset[10], alpha ) );\n\t\t\t} else {\n\t\t\t\tcolor_ = vec4(0.0, 0.0, 0.0, 0.0);\n\t\t\t}\n\t\t\tcolor_.a = color_.a - (1.0 - u_opacity);\n\t\t\tif (color_.a < 0.0) {\n\t\t\t\tcolor_.a = 0.0;\n\t\t\t}\n\t\t\tgl_FragColor = color_;\n\t\t}\n\t}",o="\n\tattribute vec2 a_texCoord;\n\tvarying vec2 v_texCoord;\n\tvoid main() {\n\t\tvec2 clipSpace = a_texCoord * 2.0 - 1.0;\n\t\tgl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);\n\t\tv_texCoord = a_texCoord;\n\t}";return function(a,i){function n(t,r,e){var o=t.createShader(t[r]);if(t.shaderSource(o,e),t.compileShader(o),!t.getShaderParameter(o,t.COMPILE_STATUS)){var a=t.getShaderInfoLog(o);console.error("*** Error compiling shader '"+o+"':"+a),t.deleteShader(o)}return o}var f,u;void 0===i&&(i={});var s,l=[],h=[],c=0;function _(a,i){var u,s,l,h,c=document.querySelector(a),_=c.clientHeight,m=c.clientWidth,d=document.createElement("canvas"),p=d.getContext("webgl",{premultipliedAlpha:!1,depth:!1,antialias:!0,alpha:!0,preserveDrawingBuffer:!1});f=function(t){return(window.devicePixelRatio||1)/(t.webkitBackingStorePixelRatio||t.mozBackingStorePixelRatio||t.msBackingStorePixelRatio||t.oBackingStorePixelRatio||t.backingStorePixelRatio||1)}(p),console.log(f),p.clearColor(0,0,0,0),p.enable(p.BLEND),p.blendEquation(p.FUNC_ADD),p.blendFunc(p.ONE,p.ONE_MINUS_SRC_ALPHA),p.depthMask(!0),d.setAttribute("height",_*f),d.setAttribute("width",m*f),d.style.height=_+"px",d.style.width=m+"px",d.style.position="absolute",c.appendChild(d),this.gradient=(u=i.gradient,s=[],l=u.length,h=[],u.forEach((function(t){s.push(t.color[0]/255),s.push(t.color[1]/255),s.push(t.color[2]/255),s.push(void 0===t.color[3]?1:t.color[3]),h.push(t.offset)})),{value:new Float32Array(s),length:l,offset:h}),this.ctx=p,this.width=m*f,this.height=_*f,this.layer=d,this.dom=c,this.gradShadOP=function(e){var o=n(e,"VERTEX_SHADER",r),a=n(e,"FRAGMENT_SHADER",t),i=e.createProgram();if(e.attachShader(i,o),e.attachShader(i,a),e.linkProgram(i),!e.getProgramParameter(i,e.LINK_STATUS)){var f=e.getProgramInfoLog(i);console.error("Error in program linking:"+f),e.deleteProgram(i)}return{program:i,attr:[{bufferType:e.ARRAY_BUFFER,buffer:e.createBuffer(),drawType:e.STATIC_DRAW,valueType:e.FLOAT,size:2,attribute:e.getAttribLocation(i,"a_position"),data:new Float32Array([])},{bufferType:e.ARRAY_BUFFER,buffer:e.createBuffer(),drawType:e.STATIC_DRAW,valueType:e.FLOAT,size:1,attribute:e.getAttribLocation(i,"a_intensity"),data:new Float32Array([])}],uniform:{u_resolution:e.getUniformLocation(i,"u_resolution"),u_max:e.getUniformLocation(i,"u_max"),u_size:e.getUniformLocation(i,"u_size"),u_blur:e.getUniformLocation(i,"u_blur"),u_translate:e.getUniformLocation(i,"u_translate"),u_zoom:e.getUniformLocation(i,"u_zoom"),u_angle:e.getUniformLocation(i,"u_angle"),u_density:e.getUniformLocation(i,"u_density")}}}(this.ctx),this.colorShadOP=function(t){var r=n(t,"VERTEX_SHADER",o),a=n(t,"FRAGMENT_SHADER",e),i=t.createProgram();if(t.attachShader(i,r),t.attachShader(i,a),t.linkProgram(i),!t.getProgramParameter(i,t.LINK_STATUS)){var f=t.getProgramInfoLog(i);console.error("Error in program linking:"+f),t.deleteProgram(i)}return{program:i,attr:[{bufferType:t.ARRAY_BUFFER,buffer:t.createBuffer(),drawType:t.STATIC_DRAW,valueType:t.FLOAT,size:2,attribute:t.getAttribLocation(i,"a_texCoord"),data:new Float32Array([0,0,1,0,0,1,0,1,1,0,1,1])}],uniform:{u_framebuffer:t.getUniformLocation(i,"u_framebuffer"),u_colorArr:t.getUniformLocation(i,"u_colorArr"),u_colorCount:t.getUniformLocation(i,"u_colorCount"),u_opacity:t.getUniformLocation(i,"u_opacity"),u_offset:t.getUniformLocation(i,"u_offset")}}}(this.ctx),this.fbTexObj=p.createTexture(),this.fbo=p.createFramebuffer(),this.size=i.size?i.size:20,this.max=i.max?i.max:1/0,this.blur=i.blur?i.blur:1,this.translate=i.translate&&2===i.translate.length?i.translate:[0,0],this.zoom=i.zoom?i.zoom:1,this.angle=i.rotationAngle?i.rotationAngle:0,this.opacity=i.opacity?i.opacity:1,this.ratio=f,this.rawData=[],p.viewport(0,0,p.canvas.width,p.canvas.height)}function m(t){var r=this.width/(2*f),e=this.height/(2*f);if(t.x-=r,t.y-=e,t.x/=r,t.y/=e,t.x=t.x*this.zoom,t.y=t.y*this.zoom,0!==this.angle){var o=Math.cos(this.angle),a=Math.sin(this.angle),i=t.x,n=t.y;t.x=o*i+-a*n,t.y=a*i+o*n}t.x*=r,t.y*=e,t.x+=r,t.y+=e,t.x-=this.translate[0],t.y-=this.translate[1]}return _.prototype.resize=function(){var t=this.dom.clientHeight,r=this.dom.clientWidth;this.layer.setAttribute("height",t*f),this.layer.setAttribute("width",r*f),this.layer.style.height=t+"px",this.layer.style.width=r+"px",this.width=r*f,this.height=t*f,this.ctx.viewport(0,0,this.width,this.height),this.render(this.exData)},_.prototype.clear=function(){this.ctx.clear(this.ctx.COLOR_BUFFER_BIT|this.ctx.DEPTH_BUFFER_BIT)},_.prototype.setMax=function(t){this.max=t,this.render(this.exData)},_.prototype.setTranslate=function(t){this.translate=2===t.length?t:[0,0],this.render(this.exData)},_.prototype.setZoom=function(t){this.zoom=void 0!==t?t:1,this.render(this.exData)},_.prototype.setRotationAngle=function(t){this.angle=void 0!==t?t:0,this.render(this.exData)},_.prototype.setSize=function(t){this.size=void 0!==t?t:20,this.render(this.exData)},_.prototype.setBlur=function(t){this.blur=void 0!==t?t:1,this.render(this.exData)},_.prototype.setOpacity=function(t){this.opacity=void 0!==t?t:1,this.render(this.exData)},_.prototype.addData=function(t,r){for(var e=0;e<t.length;e++)r&&m.call(this,t[e]),this.rawData.push(t[e]);this.renderData(this.rawData)},_.prototype.renderData=function(t){var r=function(t){var r=t.length;c!==r&&(u=new ArrayBuffer(8*r),l=new Float32Array(u),s=new ArrayBuffer(4*r),h=new Float32Array(s),c=r);for(var e=0;e<r;e++)l[2*e]=t[e].x,l[2*e+1]=t[e].y,h[e]=t[e].value;return{posVec:l,rVec:h}}(t);this.rawData=t,this.render(r)},_.prototype.render=function(t){var r=this.ctx;this.exData=t,this.gradShadOP.attr[0].data=t.posVec,this.gradShadOP.attr[1].data=t.rVec,r.clear(r.COLOR_BUFFER_BIT|r.DEPTH_BUFFER_BIT),r.useProgram(this.gradShadOP.program),r.uniform2fv(this.gradShadOP.uniform.u_resolution,new Float32Array([this.width,this.height])),r.uniform2fv(this.gradShadOP.uniform.u_translate,new Float32Array([this.translate[0],this.translate[1]])),r.uniform1f(this.gradShadOP.uniform.u_zoom,this.zoom?this.zoom:.01),r.uniform1f(this.gradShadOP.uniform.u_angle,this.angle),r.uniform1f(this.gradShadOP.uniform.u_density,this.ratio),r.uniform1f(this.gradShadOP.uniform.u_max,this.max),r.uniform1f(this.gradShadOP.uniform.u_size,this.size),r.uniform1f(this.gradShadOP.uniform.u_blur,this.blur),this.gradShadOP.attr.forEach((function(t){r.bindBuffer(t.bufferType,t.buffer),r.bufferData(t.bufferType,t.data,t.drawType),r.enableVertexAttribArray(t.attribute),r.vertexAttribPointer(t.attribute,t.size,t.valueType,!0,0,0)})),r.bindTexture(r.TEXTURE_2D,this.fbTexObj),r.texImage2D(r.TEXTURE_2D,0,r.RGBA,this.width,this.height,0,r.RGBA,r.UNSIGNED_BYTE,null),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_S,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_T,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MIN_FILTER,r.LINEAR),r.bindFramebuffer(r.FRAMEBUFFER,this.fbo),r.framebufferTexture2D(r.FRAMEBUFFER,r.COLOR_ATTACHMENT0,r.TEXTURE_2D,this.fbTexObj,0),r.drawArrays(r.POINTS,0,t.posVec.length/2),r.bindFramebuffer(r.FRAMEBUFFER,null),r.useProgram(this.colorShadOP.program),r.uniform4fv(this.colorShadOP.uniform.u_colorArr,this.gradient.value),r.uniform1f(this.colorShadOP.uniform.u_colorCount,this.gradient.length),r.uniform1fv(this.colorShadOP.uniform.u_offset,new Float32Array(this.gradient.offset)),r.uniform1f(this.colorShadOP.uniform.u_opacity,this.opacity),this.colorShadOP.attr.forEach((function(t){r.bindBuffer(t.bufferType,t.buffer),r.bufferData(t.bufferType,t.data,t.drawType),r.enableVertexAttribArray(t.attribute),r.vertexAttribPointer(t.attribute,t.size,t.valueType,!0,0,0)})),r.uniform1i(this.colorShadOP.uniform.u_framebuffer,0),r.activeTexture(r.TEXTURE0),r.bindTexture(r.TEXTURE_2D,this.fbTexObj),r.drawArrays(r.TRIANGLES,0,6)},new _(a,i)}}));
+!function(t,r){"object"==typeof exports&&"undefined"!=typeof module?module.exports=r():"function"==typeof define&&define.amd?define(r):(t=t||self).visualHeatmap=r()}(this,(function(){"use strict";var t="\n\tprecision mediump float;\n\tuniform float u_max;\n\tuniform float u_blur;\n\tvarying float v_i;\n\tvoid main() {\n\t\tfloat r = 0.0; \n\t\tvec2 cxy = 2.0 * gl_PointCoord - 1.0;\n\t\tr = dot(cxy, cxy);\n\t\tif(r <= 1.0) {\n\t\t\tgl_FragColor = vec4(0, 0, 0, (v_i/u_max) * u_blur * (1.0 - sqrt(r)));\n\t\t}\n\t}",r="\n\tattribute vec2 a_position;\n\tattribute float a_intensity;\n\tuniform float u_size;\n\tuniform vec2 u_resolution;\n\tuniform vec2 u_translate; \n\tuniform float u_zoom; \n\tuniform float u_angle; \n\tuniform float u_density;\n\tvarying float v_i;\n\n\tvec2 rotation(vec2 v, float a) {\n\t\tfloat s = sin(a); float c = cos(a); mat2 m = mat2(c, -s, s, c); \n\t\treturn m * v;\n\t}\n\n\tvoid main() {\n\t\tvec2 zeroToOne = (a_position * u_density + u_translate * u_density) / (u_resolution);\n\t\tvec2 zeroToTwo = zeroToOne * 2.0 - 1.0;\n\t\tzeroToTwo = zeroToTwo / u_zoom;\n\t\tif (u_angle != 0.0) {\n\t\t\tzeroToTwo = rotation(zeroToTwo, u_angle);\n\t\t}\n\t\tgl_Position = vec4(zeroToTwo , 0, 1);\n\t\tgl_PointSize = u_size * u_density;\n\t\tv_i = a_intensity;\n\t}",e="\n\tprecision mediump float;\n\tvarying vec2 v_texCoord;\n\tuniform sampler2D u_framebuffer; uniform vec4 u_colorArr[11]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[11];\n\n\tfloat remap ( float minval, float maxval, float curval ) {\n\t\treturn ( curval - minval ) / ( maxval - minval );\n\t}\n\n\tvoid main() {\n\t\tfloat alpha = texture2D(u_framebuffer, v_texCoord.xy).a;\n\t\tif (alpha > 0.0 && alpha <= 1.0) {\n\t\t\tvec4 color_;\n\t\t\tif (alpha <= u_offset[0]) {\n\t\t\t\tcolor_ = u_colorArr[0];\n\t\t\t} else if (alpha <= u_offset[1]) {\n\t\t\t\tcolor_ = mix( u_colorArr[0], u_colorArr[1], remap( u_offset[0], u_offset[1], alpha ) );\n\t\t\t} else if (alpha <= u_offset[2]) {\n\t\t\t\tcolor_ = mix( u_colorArr[1], u_colorArr[2], remap( u_offset[1], u_offset[2], alpha ) );\n\t\t\t} else if (alpha <= u_offset[3]) {\n\t\t\t\tcolor_ = mix( u_colorArr[2], u_colorArr[3], remap( u_offset[2], u_offset[3], alpha ) );\n\t\t\t} else if (alpha <= u_offset[4]) {\n\t\t\t\tcolor_ = mix( u_colorArr[3], u_colorArr[4], remap( u_offset[3], u_offset[4], alpha ) );\n\t\t\t} else if (alpha <= u_offset[5]) {\n\t\t\t\tcolor_ = mix( u_colorArr[4], u_colorArr[5], remap( u_offset[4], u_offset[5], alpha ) );\n\t\t\t} else if (alpha <= u_offset[6]) {\n\t\t\t\tcolor_ = mix( u_colorArr[5], u_colorArr[6], remap( u_offset[5], u_offset[6], alpha ) );\n\t\t\t} else if (alpha <= u_offset[7]) {\n\t\t\t\tcolor_ = mix( u_colorArr[6], u_colorArr[7], remap( u_offset[6], u_offset[7], alpha ) );\n\t\t\t} else if (alpha <= u_offset[8]) {\n\t\t\t\tcolor_ = mix( u_colorArr[7], u_colorArr[8], remap( u_offset[7], u_offset[8], alpha ) );\n\t\t\t} else if (alpha <= u_offset[9]) {\n\t\t\t\tcolor_ = mix( u_colorArr[8], u_colorArr[9], remap( u_offset[8], u_offset[9], alpha ) );\n\t\t\t} else if (alpha <= u_offset[10]) {\n\t\t\t\tcolor_ = mix( u_colorArr[9], u_colorArr[10], remap( u_offset[9], u_offset[10], alpha ) );\n\t\t\t} else {\n\t\t\t\tcolor_ = vec4(0.0, 0.0, 0.0, 0.0);\n\t\t\t}\n\t\t\tcolor_.a = color_.a - (1.0 - u_opacity);\n\t\t\tif (color_.a < 0.0) {\n\t\t\t\tcolor_.a = 0.0;\n\t\t\t}\n\t\t\tgl_FragColor = color_;\n\t\t}\n\t}",o="\n\tattribute vec2 a_texCoord;\n\tvarying vec2 v_texCoord;\n\tvoid main() {\n\t\tvec2 clipSpace = a_texCoord * 2.0 - 1.0;\n\t\tgl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);\n\t\tv_texCoord = a_texCoord;\n\t}";return function(a,i){function n(t,r,e){var o=t.createShader(t[r]);if(t.shaderSource(o,e),t.compileShader(o),!t.getShaderParameter(o,t.COMPILE_STATUS)){var a=t.getShaderInfoLog(o);console.error("*** Error compiling shader '"+o+"':"+a),t.deleteShader(o)}return o}var f,u;void 0===i&&(i={});var s,l=[],h=[],c=0;function _(a,i){var u,s,l,h,c=document.querySelector(a),_=c.clientHeight,m=c.clientWidth,d=document.createElement("canvas"),p=d.getContext("webgl",{premultipliedAlpha:!1,depth:!1,antialias:!0,alpha:!0,preserveDrawingBuffer:!1});f=function(t){return(window.devicePixelRatio||1)/(t.webkitBackingStorePixelRatio||t.mozBackingStorePixelRatio||t.msBackingStorePixelRatio||t.oBackingStorePixelRatio||t.backingStorePixelRatio||1)}(p),console.log(f),p.clearColor(0,0,0,0),p.enable(p.BLEND),p.blendEquation(p.FUNC_ADD),p.blendFunc(p.ONE,p.ONE_MINUS_SRC_ALPHA),p.depthMask(!0),d.setAttribute("height",_*f),d.setAttribute("width",m*f),d.style.height=_+"px",d.style.width=m+"px",d.style.position="absolute",c.appendChild(d),this.gradient=(u=i.gradient,s=[],l=u.length,h=[],u.forEach((function(t){s.push(t.color[0]/255),s.push(t.color[1]/255),s.push(t.color[2]/255),s.push(void 0===t.color[3]?1:t.color[3]),h.push(t.offset)})),{value:new Float32Array(s),length:l,offset:h}),this.ctx=p,this.width=m*f,this.height=_*f,this.layer=d,this.dom=c,this.gradShadOP=function(e){var o=n(e,"VERTEX_SHADER",r),a=n(e,"FRAGMENT_SHADER",t),i=e.createProgram();if(e.attachShader(i,o),e.attachShader(i,a),e.linkProgram(i),!e.getProgramParameter(i,e.LINK_STATUS)){var f=e.getProgramInfoLog(i);console.error("Error in program linking:"+f),e.deleteProgram(i)}return{program:i,attr:[{bufferType:e.ARRAY_BUFFER,buffer:e.createBuffer(),drawType:e.STATIC_DRAW,valueType:e.FLOAT,size:2,attribute:e.getAttribLocation(i,"a_position"),data:new Float32Array([])},{bufferType:e.ARRAY_BUFFER,buffer:e.createBuffer(),drawType:e.STATIC_DRAW,valueType:e.FLOAT,size:1,attribute:e.getAttribLocation(i,"a_intensity"),data:new Float32Array([])}],uniform:{u_resolution:e.getUniformLocation(i,"u_resolution"),u_max:e.getUniformLocation(i,"u_max"),u_size:e.getUniformLocation(i,"u_size"),u_blur:e.getUniformLocation(i,"u_blur"),u_translate:e.getUniformLocation(i,"u_translate"),u_zoom:e.getUniformLocation(i,"u_zoom"),u_angle:e.getUniformLocation(i,"u_angle"),u_density:e.getUniformLocation(i,"u_density")}}}(this.ctx),this.colorShadOP=function(t){var r=n(t,"VERTEX_SHADER",o),a=n(t,"FRAGMENT_SHADER",e),i=t.createProgram();if(t.attachShader(i,r),t.attachShader(i,a),t.linkProgram(i),!t.getProgramParameter(i,t.LINK_STATUS)){var f=t.getProgramInfoLog(i);console.error("Error in program linking:"+f),t.deleteProgram(i)}return{program:i,attr:[{bufferType:t.ARRAY_BUFFER,buffer:t.createBuffer(),drawType:t.STATIC_DRAW,valueType:t.FLOAT,size:2,attribute:t.getAttribLocation(i,"a_texCoord"),data:new Float32Array([0,0,1,0,0,1,0,1,1,0,1,1])}],uniform:{u_framebuffer:t.getUniformLocation(i,"u_framebuffer"),u_colorArr:t.getUniformLocation(i,"u_colorArr"),u_colorCount:t.getUniformLocation(i,"u_colorCount"),u_opacity:t.getUniformLocation(i,"u_opacity"),u_offset:t.getUniformLocation(i,"u_offset")}}}(this.ctx),this.fbTexObj=p.createTexture(),this.fbo=p.createFramebuffer(),this.size=i.size?i.size:20,this.max=i.max?i.max:1/0,this.blur=i.blur?i.blur:1,this.translate=i.translate&&2===i.translate.length?i.translate:[0,0],this.zoom=i.zoom?i.zoom:1,this.angle=i.rotationAngle?i.rotationAngle:0,this.opacity=i.opacity?i.opacity:1,this.ratio=f,this.rawData=[],p.viewport(0,0,p.canvas.width,p.canvas.height)}function m(t){var r=this.width/(2*f),e=this.height/(2*f);if(t.x-=r,t.y-=e,t.x/=r,t.y/=e,t.x=t.x*this.zoom,t.y=t.y*this.zoom,0!==this.angle){var o=Math.cos(this.angle),a=Math.sin(this.angle),i=t.x,n=t.y;t.x=o*i+-a*n,t.y=a*i+o*n}t.x*=r,t.y*=e,t.x+=r,t.y+=e,t.x-=this.translate[0],t.y-=this.translate[1]}return _.prototype.resize=function(){var t=this.dom.clientHeight,r=this.dom.clientWidth;this.layer.setAttribute("height",t*f),this.layer.setAttribute("width",r*f),this.layer.style.height=t+"px",this.layer.style.width=r+"px",this.width=r*f,this.height=t*f,this.ctx.viewport(0,0,this.width,this.height),this.render(this.exData)},_.prototype.clear=function(){this.ctx.clear(this.ctx.COLOR_BUFFER_BIT|this.ctx.DEPTH_BUFFER_BIT)},_.prototype.setMax=function(t){this.max=t,this.render(this.exData)},_.prototype.setTranslate=function(t){this.translate=2===t.length?t:[0,0],this.render(this.exData)},_.prototype.setZoom=function(t){this.zoom=void 0!==t?t:1,this.render(this.exData)},_.prototype.setRotationAngle=function(t){this.angle=void 0!==t?t:0,this.render(this.exData)},_.prototype.setSize=function(t){this.size=void 0!==t?t:20,this.render(this.exData)},_.prototype.setBlur=function(t){this.blur=void 0!==t?t:1,this.render(this.exData)},_.prototype.setOpacity=function(t){this.opacity=void 0!==t?t:1,this.render(this.exData)},_.prototype.addData=function(t,r){for(var e=0;e<t.length;e++)r&&m.call(this,t[e]),this.rawData.push(t[e]);this.renderData(this.rawData)},_.prototype.renderData=function(t){var r=function(t){var r=t.length;c!==r&&(u=new ArrayBuffer(8*r),l=new Float32Array(u),s=new ArrayBuffer(4*r),h=new Float32Array(s),c=r);for(var e=0;e<r;e++)l[2*e]=t[e].x,l[2*e+1]=t[e].y,h[e]=t[e].value;return{posVec:l,rVec:h}}(t);this.rawData=t,this.render(r)},_.prototype.render=function(t){var r=this.ctx;this.exData=t,this.gradShadOP.attr[0].data=t.posVec,this.gradShadOP.attr[1].data=t.rVec,r.clear(r.COLOR_BUFFER_BIT|r.DEPTH_BUFFER_BIT),r.useProgram(this.gradShadOP.program),r.uniform2fv(this.gradShadOP.uniform.u_resolution,new Float32Array([this.width,this.height])),r.uniform2fv(this.gradShadOP.uniform.u_translate,new Float32Array([this.translate[0],this.translate[1]])),r.uniform1f(this.gradShadOP.uniform.u_zoom,this.zoom?this.zoom:.01),r.uniform1f(this.gradShadOP.uniform.u_angle,this.angle),r.uniform1f(this.gradShadOP.uniform.u_density,this.ratio),r.uniform1f(this.gradShadOP.uniform.u_max,this.max),r.uniform1f(this.gradShadOP.uniform.u_size,this.size),r.uniform1f(this.gradShadOP.uniform.u_blur,this.blur),this.gradShadOP.attr.forEach((function(t){r.bindBuffer(t.bufferType,t.buffer),r.bufferData(t.bufferType,t.data,t.drawType),r.enableVertexAttribArray(t.attribute),r.vertexAttribPointer(t.attribute,t.size,t.valueType,!0,0,0)})),r.bindTexture(r.TEXTURE_2D,this.fbTexObj),r.texImage2D(r.TEXTURE_2D,0,r.RGBA,this.width,this.height,0,r.RGBA,r.UNSIGNED_BYTE,null),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_S,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_T,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MIN_FILTER,r.LINEAR),r.bindFramebuffer(r.FRAMEBUFFER,this.fbo),r.framebufferTexture2D(r.FRAMEBUFFER,r.COLOR_ATTACHMENT0,r.TEXTURE_2D,this.fbTexObj,0),r.drawArrays(r.POINTS,0,t.posVec.length/2),r.bindFramebuffer(r.FRAMEBUFFER,null),r.useProgram(this.colorShadOP.program),r.uniform4fv(this.colorShadOP.uniform.u_colorArr,this.gradient.value),r.uniform1f(this.colorShadOP.uniform.u_colorCount,this.gradient.length),r.uniform1fv(this.colorShadOP.uniform.u_offset,new Float32Array(this.gradient.offset)),r.uniform1f(this.colorShadOP.uniform.u_opacity,this.opacity),this.colorShadOP.attr.forEach((function(t){r.bindBuffer(t.bufferType,t.buffer),r.bufferData(t.bufferType,t.data,t.drawType),r.enableVertexAttribArray(t.attribute),r.vertexAttribPointer(t.attribute,t.size,t.valueType,!0,0,0)})),r.uniform1i(this.colorShadOP.uniform.u_framebuffer,0),r.activeTexture(r.TEXTURE0),r.bindTexture(r.TEXTURE_2D,this.fbTexObj),r.drawArrays(r.TRIANGLES,0,6)},new _(a,i)}}));
diff --git a/dist/visualHeatmap.min.js b/dist/visualHeatmap.min.js
index 786516e..5f395a1 100644
--- a/dist/visualHeatmap.min.js
+++ b/dist/visualHeatmap.min.js
@@ -1 +1 @@
-!function(t,r){"object"==typeof exports&&"undefined"!=typeof module?module.exports=r():"function"==typeof define&&define.amd?define(r):(t=t||self).visualHeatmap=r()}(this,(function(){"use strict";var t="\n\tprecision mediump float;\n\tuniform float u_max;\n\tuniform float u_blur;\n\tvarying float v_i;\n\tvoid main() {\n\t\tfloat r = 0.0; \n\t\tvec2 cxy = 2.0 * gl_PointCoord - 1.0;\n\t\tr = dot(cxy, cxy);\n\t\tif(r <= 1.0) {\n\t\t\tgl_FragColor = vec4(0, 0, 0, (v_i/u_max) * u_blur * (1.0 - sqrt(r)));\n\t\t}\n\t}",r="\n\tattribute vec2 a_position;\n\tattribute float a_intensity;\n\tuniform float u_size;\n\tuniform vec2 u_resolution;\n\tuniform vec2 u_translate; \n\tuniform float u_zoom; \n\tuniform float u_angle; \n\tuniform float u_density;\n\tvarying float v_i;\n\n\tvec2 rotation(vec2 v, float a) {\n\t\tfloat s = sin(a); float c = cos(a); mat2 m = mat2(c, -s, s, c); \n\t\treturn m * v;\n\t}\n\n\tvoid main() {\n\t\tvec2 zeroToOne = (a_position * u_density + u_translate * u_density) / (u_resolution);\n\t\tvec2 zeroToTwo = zeroToOne * 2.0 - 1.0;\n\t\tzeroToTwo = zeroToTwo / u_zoom;\n\t\tif (u_angle != 0.0) {\n\t\t\tzeroToTwo = rotation(zeroToTwo, u_angle);\n\t\t}\n\t\tgl_Position = vec4(zeroToTwo , 0, 1);\n\t\tgl_PointSize = u_size * u_density;\n\t\tv_i = a_intensity;\n\t}",e="\n\tprecision mediump float;\n\tvarying vec2 v_texCoord;\n\tuniform sampler2D u_framebuffer; uniform vec4 u_colorArr[100]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[100];\n\n\tfloat remap ( float minval, float maxval, float curval ) {\n\t\treturn ( curval - minval ) / ( maxval - minval );\n\t}\n\n\tvoid main() {\n\t\tfloat alpha = texture2D(u_framebuffer, v_texCoord.xy).a;\n\t\tif (alpha > 0.0 && alpha <= 1.0) {\n\t\t\tvec4 color_;\n\t\t\tif (alpha <= u_offset[0]) {\n\t\t\t\tcolor_ = u_colorArr[0];\n\t\t\t} else if (alpha <= u_offset[1]) {\n\t\t\t\tcolor_ = mix( u_colorArr[0], u_colorArr[1], remap( u_offset[0], u_offset[1], alpha ) );\n\t\t\t} else if (alpha <= u_offset[2]) {\n\t\t\t\tcolor_ = mix( u_colorArr[1], u_colorArr[2], remap( u_offset[1], u_offset[2], alpha ) );\n\t\t\t} else if (alpha <= u_offset[3]) {\n\t\t\t\tcolor_ = mix( u_colorArr[2], u_colorArr[3], remap( u_offset[2], u_offset[3], alpha ) );\n\t\t\t} else if (alpha <= u_offset[4]) {\n\t\t\t\tcolor_ = mix( u_colorArr[3], u_colorArr[4], remap( u_offset[3], u_offset[4], alpha ) );\n\t\t\t} else if (alpha <= u_offset[5]) {\n\t\t\t\tcolor_ = mix( u_colorArr[4], u_colorArr[5], remap( u_offset[4], u_offset[5], alpha ) );\n\t\t\t} else if (alpha <= u_offset[6]) {\n\t\t\t\tcolor_ = mix( u_colorArr[5], u_colorArr[6], remap( u_offset[5], u_offset[6], alpha ) );\n\t\t\t} else if (alpha <= u_offset[7]) {\n\t\t\t\tcolor_ = mix( u_colorArr[6], u_colorArr[7], remap( u_offset[6], u_offset[7], alpha ) );\n\t\t\t} else if (alpha <= u_offset[8]) {\n\t\t\t\tcolor_ = mix( u_colorArr[7], u_colorArr[8], remap( u_offset[7], u_offset[8], alpha ) );\n\t\t\t} else if (alpha <= u_offset[9]) {\n\t\t\t\tcolor_ = mix( u_colorArr[8], u_colorArr[9], remap( u_offset[8], u_offset[9], alpha ) );\n\t\t\t} else if (alpha <= u_offset[10]) {\n\t\t\t\tcolor_ = mix( u_colorArr[9], u_colorArr[10], remap( u_offset[9], u_offset[10], alpha ) );\n\t\t\t} else {\n\t\t\t\tcolor_ = vec4(0.0, 0.0, 0.0, 0.0);\n\t\t\t}\n\t\t\tcolor_.a = color_.a - (1.0 - u_opacity);\n\t\t\tif (color_.a < 0.0) {\n\t\t\t\tcolor_.a = 0.0;\n\t\t\t}\n\t\t\tgl_FragColor = color_;\n\t\t}\n\t}",o="\n\tattribute vec2 a_texCoord;\n\tvarying vec2 v_texCoord;\n\tvoid main() {\n\t\tvec2 clipSpace = a_texCoord * 2.0 - 1.0;\n\t\tgl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);\n\t\tv_texCoord = a_texCoord;\n\t}";return function(a,i={}){function n(t,r,e){var o=t.createShader(t[r]);if(t.shaderSource(o,e),t.compileShader(o),!t.getShaderParameter(o,t.COMPILE_STATUS)){var a=t.getShaderInfoLog(o);console.error("*** Error compiling shader '"+o+"':"+a),t.deleteShader(o)}return o}let f,u,s,l=[],h=[],c=0;function _(a,i){const u=document.querySelector(a),s=u.clientHeight,l=u.clientWidth,h=document.createElement("canvas"),c=h.getContext("webgl",{premultipliedAlpha:!1,depth:!1,antialias:!0,alpha:!0,preserveDrawingBuffer:!1});f=function(t){return(window.devicePixelRatio||1)/(t.webkitBackingStorePixelRatio||t.mozBackingStorePixelRatio||t.msBackingStorePixelRatio||t.oBackingStorePixelRatio||t.backingStorePixelRatio||1)}(c),console.log(f),c.clearColor(0,0,0,0),c.enable(c.BLEND),c.blendEquation(c.FUNC_ADD),c.blendFunc(c.ONE,c.ONE_MINUS_SRC_ALPHA),c.depthMask(!0),h.setAttribute("height",s*f),h.setAttribute("width",l*f),h.style.height=`${s}px`,h.style.width=`${l}px`,h.style.position="absolute",u.appendChild(h),this.gradient=function(t){const r=[],e=t.length,o=[];return t.forEach((function(t){r.push(t.color[0]/255),r.push(t.color[1]/255),r.push(t.color[2]/255),r.push(void 0===t.color[3]?1:t.color[3]),o.push(t.offset)})),{value:new Float32Array(r),length:e,offset:o}}(i.gradient),this.ctx=c,this.width=l*f,this.height=s*f,this.layer=h,this.dom=u,this.gradShadOP=function(e){var o=n(e,"VERTEX_SHADER",r),a=n(e,"FRAGMENT_SHADER",t),i=e.createProgram();if(e.attachShader(i,o),e.attachShader(i,a),e.linkProgram(i),!e.getProgramParameter(i,e.LINK_STATUS)){var f=e.getProgramInfoLog(i);console.error("Error in program linking:"+f),e.deleteProgram(i)}return{program:i,attr:[{bufferType:e.ARRAY_BUFFER,buffer:e.createBuffer(),drawType:e.STATIC_DRAW,valueType:e.FLOAT,size:2,attribute:e.getAttribLocation(i,"a_position"),data:new Float32Array([])},{bufferType:e.ARRAY_BUFFER,buffer:e.createBuffer(),drawType:e.STATIC_DRAW,valueType:e.FLOAT,size:1,attribute:e.getAttribLocation(i,"a_intensity"),data:new Float32Array([])}],uniform:{u_resolution:e.getUniformLocation(i,"u_resolution"),u_max:e.getUniformLocation(i,"u_max"),u_size:e.getUniformLocation(i,"u_size"),u_blur:e.getUniformLocation(i,"u_blur"),u_translate:e.getUniformLocation(i,"u_translate"),u_zoom:e.getUniformLocation(i,"u_zoom"),u_angle:e.getUniformLocation(i,"u_angle"),u_density:e.getUniformLocation(i,"u_density")}}}(this.ctx),this.colorShadOP=function(t){var r=n(t,"VERTEX_SHADER",o),a=n(t,"FRAGMENT_SHADER",e),i=t.createProgram();if(t.attachShader(i,r),t.attachShader(i,a),t.linkProgram(i),!t.getProgramParameter(i,t.LINK_STATUS)){var f=t.getProgramInfoLog(i);console.error("Error in program linking:"+f),t.deleteProgram(i)}return{program:i,attr:[{bufferType:t.ARRAY_BUFFER,buffer:t.createBuffer(),drawType:t.STATIC_DRAW,valueType:t.FLOAT,size:2,attribute:t.getAttribLocation(i,"a_texCoord"),data:new Float32Array([0,0,1,0,0,1,0,1,1,0,1,1])}],uniform:{u_framebuffer:t.getUniformLocation(i,"u_framebuffer"),u_colorArr:t.getUniformLocation(i,"u_colorArr"),u_colorCount:t.getUniformLocation(i,"u_colorCount"),u_opacity:t.getUniformLocation(i,"u_opacity"),u_offset:t.getUniformLocation(i,"u_offset")}}}(this.ctx),this.fbTexObj=c.createTexture(),this.fbo=c.createFramebuffer(),this.size=i.size?i.size:20,this.max=i.max?i.max:1/0,this.blur=i.blur?i.blur:1,this.translate=i.translate&&2===i.translate.length?i.translate:[0,0],this.zoom=i.zoom?i.zoom:1,this.angle=i.rotationAngle?i.rotationAngle:0,this.opacity=i.opacity?i.opacity:1,this.ratio=f,this.rawData=[],c.viewport(0,0,c.canvas.width,c.canvas.height)}function m(t){const r=this.width/(2*f),e=this.height/(2*f);if(t.x-=r,t.y-=e,t.x/=r,t.y/=e,t.x=t.x*this.zoom,t.y=t.y*this.zoom,0!==this.angle){const r=Math.cos(this.angle),e=Math.sin(this.angle),o=t.x,a=t.y;t.x=r*o+-e*a,t.y=e*o+r*a}t.x*=r,t.y*=e,t.x+=r,t.y+=e,t.x-=this.translate[0],t.y-=this.translate[1]}return _.prototype.resize=function(){const t=this.dom.clientHeight,r=this.dom.clientWidth;this.layer.setAttribute("height",t*f),this.layer.setAttribute("width",r*f),this.layer.style.height=`${t}px`,this.layer.style.width=`${r}px`,this.width=r*f,this.height=t*f,this.ctx.viewport(0,0,this.width,this.height),this.render(this.exData)},_.prototype.clear=function(){this.ctx.clear(this.ctx.COLOR_BUFFER_BIT|this.ctx.DEPTH_BUFFER_BIT)},_.prototype.setMax=function(t){this.max=t,this.render(this.exData)},_.prototype.setTranslate=function(t){this.translate=2===t.length?t:[0,0],this.render(this.exData)},_.prototype.setZoom=function(t){this.zoom=void 0!==t?t:1,this.render(this.exData)},_.prototype.setRotationAngle=function(t){this.angle=void 0!==t?t:0,this.render(this.exData)},_.prototype.setSize=function(t){this.size=void 0!==t?t:20,this.render(this.exData)},_.prototype.setBlur=function(t){this.blur=void 0!==t?t:1,this.render(this.exData)},_.prototype.setOpacity=function(t){this.opacity=void 0!==t?t:1,this.render(this.exData)},_.prototype.addData=function(t,r){const e=this;for(let o=0;o<t.length;o++)r&&m.call(e,t[o]),this.rawData.push(t[o]);this.renderData(this.rawData)},_.prototype.renderData=function(t){const r=function(t){const r=t.length;c!==r&&(u=new ArrayBuffer(8*r),l=new Float32Array(u),s=new ArrayBuffer(4*r),h=new Float32Array(s),c=r);for(let e=0;e<r;e++)l[2*e]=t[e].x,l[2*e+1]=t[e].y,h[e]=t[e].value;return{posVec:l,rVec:h}}(t);this.rawData=t,this.render(r)},_.prototype.render=function(t){const r=this.ctx;this.exData=t,this.gradShadOP.attr[0].data=t.posVec,this.gradShadOP.attr[1].data=t.rVec,r.clear(r.COLOR_BUFFER_BIT|r.DEPTH_BUFFER_BIT),r.useProgram(this.gradShadOP.program),r.uniform2fv(this.gradShadOP.uniform.u_resolution,new Float32Array([this.width,this.height])),r.uniform2fv(this.gradShadOP.uniform.u_translate,new Float32Array([this.translate[0],this.translate[1]])),r.uniform1f(this.gradShadOP.uniform.u_zoom,this.zoom?this.zoom:.01),r.uniform1f(this.gradShadOP.uniform.u_angle,this.angle),r.uniform1f(this.gradShadOP.uniform.u_density,this.ratio),r.uniform1f(this.gradShadOP.uniform.u_max,this.max),r.uniform1f(this.gradShadOP.uniform.u_size,this.size),r.uniform1f(this.gradShadOP.uniform.u_blur,this.blur),this.gradShadOP.attr.forEach((function(t){r.bindBuffer(t.bufferType,t.buffer),r.bufferData(t.bufferType,t.data,t.drawType),r.enableVertexAttribArray(t.attribute),r.vertexAttribPointer(t.attribute,t.size,t.valueType,!0,0,0)})),r.bindTexture(r.TEXTURE_2D,this.fbTexObj),r.texImage2D(r.TEXTURE_2D,0,r.RGBA,this.width,this.height,0,r.RGBA,r.UNSIGNED_BYTE,null),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_S,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_T,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MIN_FILTER,r.LINEAR),r.bindFramebuffer(r.FRAMEBUFFER,this.fbo),r.framebufferTexture2D(r.FRAMEBUFFER,r.COLOR_ATTACHMENT0,r.TEXTURE_2D,this.fbTexObj,0),r.drawArrays(r.POINTS,0,t.posVec.length/2),r.bindFramebuffer(r.FRAMEBUFFER,null),r.useProgram(this.colorShadOP.program),r.uniform4fv(this.colorShadOP.uniform.u_colorArr,this.gradient.value),r.uniform1f(this.colorShadOP.uniform.u_colorCount,this.gradient.length),r.uniform1fv(this.colorShadOP.uniform.u_offset,new Float32Array(this.gradient.offset)),r.uniform1f(this.colorShadOP.uniform.u_opacity,this.opacity),this.colorShadOP.attr.forEach((function(t){r.bindBuffer(t.bufferType,t.buffer),r.bufferData(t.bufferType,t.data,t.drawType),r.enableVertexAttribArray(t.attribute),r.vertexAttribPointer(t.attribute,t.size,t.valueType,!0,0,0)})),r.uniform1i(this.colorShadOP.uniform.u_framebuffer,0),r.activeTexture(r.TEXTURE0),r.bindTexture(r.TEXTURE_2D,this.fbTexObj),r.drawArrays(r.TRIANGLES,0,6)},new _(a,i)}}));
\ No newline at end of file
+!function(t,r){"object"==typeof exports&&"undefined"!=typeof module?module.exports=r():"function"==typeof define&&define.amd?define(r):(t=t||self).visualHeatmap=r()}(this,(function(){"use strict";var t="\n\tprecision mediump float;\n\tuniform float u_max;\n\tuniform float u_blur;\n\tvarying float v_i;\n\tvoid main() {\n\t\tfloat r = 0.0; \n\t\tvec2 cxy = 2.0 * gl_PointCoord - 1.0;\n\t\tr = dot(cxy, cxy);\n\t\tif(r <= 1.0) {\n\t\t\tgl_FragColor = vec4(0, 0, 0, (v_i/u_max) * u_blur * (1.0 - sqrt(r)));\n\t\t}\n\t}",r="\n\tattribute vec2 a_position;\n\tattribute float a_intensity;\n\tuniform float u_size;\n\tuniform vec2 u_resolution;\n\tuniform vec2 u_translate; \n\tuniform float u_zoom; \n\tuniform float u_angle; \n\tuniform float u_density;\n\tvarying float v_i;\n\n\tvec2 rotation(vec2 v, float a) {\n\t\tfloat s = sin(a); float c = cos(a); mat2 m = mat2(c, -s, s, c); \n\t\treturn m * v;\n\t}\n\n\tvoid main() {\n\t\tvec2 zeroToOne = (a_position * u_density + u_translate * u_density) / (u_resolution);\n\t\tvec2 zeroToTwo = zeroToOne * 2.0 - 1.0;\n\t\tzeroToTwo = zeroToTwo / u_zoom;\n\t\tif (u_angle != 0.0) {\n\t\t\tzeroToTwo = rotation(zeroToTwo, u_angle);\n\t\t}\n\t\tgl_Position = vec4(zeroToTwo , 0, 1);\n\t\tgl_PointSize = u_size * u_density;\n\t\tv_i = a_intensity;\n\t}",e="\n\tprecision mediump float;\n\tvarying vec2 v_texCoord;\n\tuniform sampler2D u_framebuffer; uniform vec4 u_colorArr[11]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[11];\n\n\tfloat remap ( float minval, float maxval, float curval ) {\n\t\treturn ( curval - minval ) / ( maxval - minval );\n\t}\n\n\tvoid main() {\n\t\tfloat alpha = texture2D(u_framebuffer, v_texCoord.xy).a;\n\t\tif (alpha > 0.0 && alpha <= 1.0) {\n\t\t\tvec4 color_;\n\t\t\tif (alpha <= u_offset[0]) {\n\t\t\t\tcolor_ = u_colorArr[0];\n\t\t\t} else if (alpha <= u_offset[1]) {\n\t\t\t\tcolor_ = mix( u_colorArr[0], u_colorArr[1], remap( u_offset[0], u_offset[1], alpha ) );\n\t\t\t} else if (alpha <= u_offset[2]) {\n\t\t\t\tcolor_ = mix( u_colorArr[1], u_colorArr[2], remap( u_offset[1], u_offset[2], alpha ) );\n\t\t\t} else if (alpha <= u_offset[3]) {\n\t\t\t\tcolor_ = mix( u_colorArr[2], u_colorArr[3], remap( u_offset[2], u_offset[3], alpha ) );\n\t\t\t} else if (alpha <= u_offset[4]) {\n\t\t\t\tcolor_ = mix( u_colorArr[3], u_colorArr[4], remap( u_offset[3], u_offset[4], alpha ) );\n\t\t\t} else if (alpha <= u_offset[5]) {\n\t\t\t\tcolor_ = mix( u_colorArr[4], u_colorArr[5], remap( u_offset[4], u_offset[5], alpha ) );\n\t\t\t} else if (alpha <= u_offset[6]) {\n\t\t\t\tcolor_ = mix( u_colorArr[5], u_colorArr[6], remap( u_offset[5], u_offset[6], alpha ) );\n\t\t\t} else if (alpha <= u_offset[7]) {\n\t\t\t\tcolor_ = mix( u_colorArr[6], u_colorArr[7], remap( u_offset[6], u_offset[7], alpha ) );\n\t\t\t} else if (alpha <= u_offset[8]) {\n\t\t\t\tcolor_ = mix( u_colorArr[7], u_colorArr[8], remap( u_offset[7], u_offset[8], alpha ) );\n\t\t\t} else if (alpha <= u_offset[9]) {\n\t\t\t\tcolor_ = mix( u_colorArr[8], u_colorArr[9], remap( u_offset[8], u_offset[9], alpha ) );\n\t\t\t} else if (alpha <= u_offset[10]) {\n\t\t\t\tcolor_ = mix( u_colorArr[9], u_colorArr[10], remap( u_offset[9], u_offset[10], alpha ) );\n\t\t\t} else {\n\t\t\t\tcolor_ = vec4(0.0, 0.0, 0.0, 0.0);\n\t\t\t}\n\t\t\tcolor_.a = color_.a - (1.0 - u_opacity);\n\t\t\tif (color_.a < 0.0) {\n\t\t\t\tcolor_.a = 0.0;\n\t\t\t}\n\t\t\tgl_FragColor = color_;\n\t\t}\n\t}",o="\n\tattribute vec2 a_texCoord;\n\tvarying vec2 v_texCoord;\n\tvoid main() {\n\t\tvec2 clipSpace = a_texCoord * 2.0 - 1.0;\n\t\tgl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);\n\t\tv_texCoord = a_texCoord;\n\t}";return function(a,i={}){function n(t,r,e){var o=t.createShader(t[r]);if(t.shaderSource(o,e),t.compileShader(o),!t.getShaderParameter(o,t.COMPILE_STATUS)){var a=t.getShaderInfoLog(o);console.error("*** Error compiling shader '"+o+"':"+a),t.deleteShader(o)}return o}let f,u,s,l=[],h=[],c=0;function _(a,i){const u=document.querySelector(a),s=u.clientHeight,l=u.clientWidth,h=document.createElement("canvas"),c=h.getContext("webgl",{premultipliedAlpha:!1,depth:!1,antialias:!0,alpha:!0,preserveDrawingBuffer:!1});f=function(t){return(window.devicePixelRatio||1)/(t.webkitBackingStorePixelRatio||t.mozBackingStorePixelRatio||t.msBackingStorePixelRatio||t.oBackingStorePixelRatio||t.backingStorePixelRatio||1)}(c),console.log(f),c.clearColor(0,0,0,0),c.enable(c.BLEND),c.blendEquation(c.FUNC_ADD),c.blendFunc(c.ONE,c.ONE_MINUS_SRC_ALPHA),c.depthMask(!0),h.setAttribute("height",s*f),h.setAttribute("width",l*f),h.style.height=`${s}px`,h.style.width=`${l}px`,h.style.position="absolute",u.appendChild(h),this.gradient=function(t){const r=[],e=t.length,o=[];return t.forEach((function(t){r.push(t.color[0]/255),r.push(t.color[1]/255),r.push(t.color[2]/255),r.push(void 0===t.color[3]?1:t.color[3]),o.push(t.offset)})),{value:new Float32Array(r),length:e,offset:o}}(i.gradient),this.ctx=c,this.width=l*f,this.height=s*f,this.layer=h,this.dom=u,this.gradShadOP=function(e){var o=n(e,"VERTEX_SHADER",r),a=n(e,"FRAGMENT_SHADER",t),i=e.createProgram();if(e.attachShader(i,o),e.attachShader(i,a),e.linkProgram(i),!e.getProgramParameter(i,e.LINK_STATUS)){var f=e.getProgramInfoLog(i);console.error("Error in program linking:"+f),e.deleteProgram(i)}return{program:i,attr:[{bufferType:e.ARRAY_BUFFER,buffer:e.createBuffer(),drawType:e.STATIC_DRAW,valueType:e.FLOAT,size:2,attribute:e.getAttribLocation(i,"a_position"),data:new Float32Array([])},{bufferType:e.ARRAY_BUFFER,buffer:e.createBuffer(),drawType:e.STATIC_DRAW,valueType:e.FLOAT,size:1,attribute:e.getAttribLocation(i,"a_intensity"),data:new Float32Array([])}],uniform:{u_resolution:e.getUniformLocation(i,"u_resolution"),u_max:e.getUniformLocation(i,"u_max"),u_size:e.getUniformLocation(i,"u_size"),u_blur:e.getUniformLocation(i,"u_blur"),u_translate:e.getUniformLocation(i,"u_translate"),u_zoom:e.getUniformLocation(i,"u_zoom"),u_angle:e.getUniformLocation(i,"u_angle"),u_density:e.getUniformLocation(i,"u_density")}}}(this.ctx),this.colorShadOP=function(t){var r=n(t,"VERTEX_SHADER",o),a=n(t,"FRAGMENT_SHADER",e),i=t.createProgram();if(t.attachShader(i,r),t.attachShader(i,a),t.linkProgram(i),!t.getProgramParameter(i,t.LINK_STATUS)){var f=t.getProgramInfoLog(i);console.error("Error in program linking:"+f),t.deleteProgram(i)}return{program:i,attr:[{bufferType:t.ARRAY_BUFFER,buffer:t.createBuffer(),drawType:t.STATIC_DRAW,valueType:t.FLOAT,size:2,attribute:t.getAttribLocation(i,"a_texCoord"),data:new Float32Array([0,0,1,0,0,1,0,1,1,0,1,1])}],uniform:{u_framebuffer:t.getUniformLocation(i,"u_framebuffer"),u_colorArr:t.getUniformLocation(i,"u_colorArr"),u_colorCount:t.getUniformLocation(i,"u_colorCount"),u_opacity:t.getUniformLocation(i,"u_opacity"),u_offset:t.getUniformLocation(i,"u_offset")}}}(this.ctx),this.fbTexObj=c.createTexture(),this.fbo=c.createFramebuffer(),this.size=i.size?i.size:20,this.max=i.max?i.max:1/0,this.blur=i.blur?i.blur:1,this.translate=i.translate&&2===i.translate.length?i.translate:[0,0],this.zoom=i.zoom?i.zoom:1,this.angle=i.rotationAngle?i.rotationAngle:0,this.opacity=i.opacity?i.opacity:1,this.ratio=f,this.rawData=[],c.viewport(0,0,c.canvas.width,c.canvas.height)}function m(t){const r=this.width/(2*f),e=this.height/(2*f);if(t.x-=r,t.y-=e,t.x/=r,t.y/=e,t.x=t.x*this.zoom,t.y=t.y*this.zoom,0!==this.angle){const r=Math.cos(this.angle),e=Math.sin(this.angle),o=t.x,a=t.y;t.x=r*o+-e*a,t.y=e*o+r*a}t.x*=r,t.y*=e,t.x+=r,t.y+=e,t.x-=this.translate[0],t.y-=this.translate[1]}return _.prototype.resize=function(){const t=this.dom.clientHeight,r=this.dom.clientWidth;this.layer.setAttribute("height",t*f),this.layer.setAttribute("width",r*f),this.layer.style.height=`${t}px`,this.layer.style.width=`${r}px`,this.width=r*f,this.height=t*f,this.ctx.viewport(0,0,this.width,this.height),this.render(this.exData)},_.prototype.clear=function(){this.ctx.clear(this.ctx.COLOR_BUFFER_BIT|this.ctx.DEPTH_BUFFER_BIT)},_.prototype.setMax=function(t){this.max=t,this.render(this.exData)},_.prototype.setTranslate=function(t){this.translate=2===t.length?t:[0,0],this.render(this.exData)},_.prototype.setZoom=function(t){this.zoom=void 0!==t?t:1,this.render(this.exData)},_.prototype.setRotationAngle=function(t){this.angle=void 0!==t?t:0,this.render(this.exData)},_.prototype.setSize=function(t){this.size=void 0!==t?t:20,this.render(this.exData)},_.prototype.setBlur=function(t){this.blur=void 0!==t?t:1,this.render(this.exData)},_.prototype.setOpacity=function(t){this.opacity=void 0!==t?t:1,this.render(this.exData)},_.prototype.addData=function(t,r){const e=this;for(let o=0;o<t.length;o++)r&&m.call(e,t[o]),this.rawData.push(t[o]);this.renderData(this.rawData)},_.prototype.renderData=function(t){const r=function(t){const r=t.length;c!==r&&(u=new ArrayBuffer(8*r),l=new Float32Array(u),s=new ArrayBuffer(4*r),h=new Float32Array(s),c=r);for(let e=0;e<r;e++)l[2*e]=t[e].x,l[2*e+1]=t[e].y,h[e]=t[e].value;return{posVec:l,rVec:h}}(t);this.rawData=t,this.render(r)},_.prototype.render=function(t){const r=this.ctx;this.exData=t,this.gradShadOP.attr[0].data=t.posVec,this.gradShadOP.attr[1].data=t.rVec,r.clear(r.COLOR_BUFFER_BIT|r.DEPTH_BUFFER_BIT),r.useProgram(this.gradShadOP.program),r.uniform2fv(this.gradShadOP.uniform.u_resolution,new Float32Array([this.width,this.height])),r.uniform2fv(this.gradShadOP.uniform.u_translate,new Float32Array([this.translate[0],this.translate[1]])),r.uniform1f(this.gradShadOP.uniform.u_zoom,this.zoom?this.zoom:.01),r.uniform1f(this.gradShadOP.uniform.u_angle,this.angle),r.uniform1f(this.gradShadOP.uniform.u_density,this.ratio),r.uniform1f(this.gradShadOP.uniform.u_max,this.max),r.uniform1f(this.gradShadOP.uniform.u_size,this.size),r.uniform1f(this.gradShadOP.uniform.u_blur,this.blur),this.gradShadOP.attr.forEach((function(t){r.bindBuffer(t.bufferType,t.buffer),r.bufferData(t.bufferType,t.data,t.drawType),r.enableVertexAttribArray(t.attribute),r.vertexAttribPointer(t.attribute,t.size,t.valueType,!0,0,0)})),r.bindTexture(r.TEXTURE_2D,this.fbTexObj),r.texImage2D(r.TEXTURE_2D,0,r.RGBA,this.width,this.height,0,r.RGBA,r.UNSIGNED_BYTE,null),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_S,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_WRAP_T,r.CLAMP_TO_EDGE),r.texParameteri(r.TEXTURE_2D,r.TEXTURE_MIN_FILTER,r.LINEAR),r.bindFramebuffer(r.FRAMEBUFFER,this.fbo),r.framebufferTexture2D(r.FRAMEBUFFER,r.COLOR_ATTACHMENT0,r.TEXTURE_2D,this.fbTexObj,0),r.drawArrays(r.POINTS,0,t.posVec.length/2),r.bindFramebuffer(r.FRAMEBUFFER,null),r.useProgram(this.colorShadOP.program),r.uniform4fv(this.colorShadOP.uniform.u_colorArr,this.gradient.value),r.uniform1f(this.colorShadOP.uniform.u_colorCount,this.gradient.length),r.uniform1fv(this.colorShadOP.uniform.u_offset,new Float32Array(this.gradient.offset)),r.uniform1f(this.colorShadOP.uniform.u_opacity,this.opacity),this.colorShadOP.attr.forEach((function(t){r.bindBuffer(t.bufferType,t.buffer),r.bufferData(t.bufferType,t.data,t.drawType),r.enableVertexAttribArray(t.attribute),r.vertexAttribPointer(t.attribute,t.size,t.valueType,!0,0,0)})),r.uniform1i(this.colorShadOP.uniform.u_framebuffer,0),r.activeTexture(r.TEXTURE0),r.bindTexture(r.TEXTURE_2D,this.fbTexObj),r.drawArrays(r.TRIANGLES,0,6)},new _(a,i)}}));
\ No newline at end of file
diff --git a/main.js b/main.js
index 770e36a..7d67c21 100644
--- a/main.js
+++ b/main.js
@@ -54,7 +54,7 @@ var GradvertexShader = `
 var ColorfragmentShader = `
 	precision mediump float;
 	varying vec2 v_texCoord;
-	uniform sampler2D u_framebuffer; uniform vec4 u_colorArr[100]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[100];
+	uniform sampler2D u_framebuffer; uniform vec4 u_colorArr[11]; uniform float u_colorCount; uniform float u_opacity; uniform float u_offset[11];
 
 	float remap ( float minval, float maxval, float curval ) {
 		return ( curval - minval ) / ( maxval - minval );
diff --git a/package-lock.json b/package-lock.json
index 9c97c31..44c3c69 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,8 +1,2483 @@
 {
   "name": "visual-heatmap",
-  "version": "1.0.4",
-  "lockfileVersion": 1,
+  "version": "1.0.5",
+  "lockfileVersion": 2,
   "requires": true,
+  "packages": {
+    "": {
+      "name": "visual-heatmap",
+      "version": "1.0.5",
+      "license": "BSD-3-Clause",
+      "devDependencies": {
+        "eslint": "^6.4.0",
+        "eslint-config-standard": "^14.1.0",
+        "eslint-loader": "^3.0.0",
+        "eslint-plugin-import": "^2.18.2",
+        "eslint-plugin-node": "^10.0.0",
+        "eslint-plugin-promise": "^4.2.1",
+        "eslint-plugin-standard": "^4.0.1",
+        "rollup": "^1.23.1",
+        "rollup-plugin-buble": "^0.19.8",
+        "rollup-plugin-commonjs": "^10.1.0",
+        "rollup-plugin-eslint": "^7.0.0",
+        "rollup-plugin-terser": "^5.1.2",
+        "rollup-plugin-uglify": "^6.0.3"
+      }
+    },
+    "node_modules/@babel/code-frame": {
+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.5.5.tgz",
+      "integrity": "sha512-27d4lZoomVyo51VegxI20xZPuSHusqbQag/ztrBC7wegWoQ1nLREPVSKSW8byhTlzTKyNE4ifaTA6lCp7JjpFw==",
+      "dev": true,
+      "dependencies": {
+        "@babel/highlight": "^7.0.0"
+      }
+    },
+    "node_modules/@babel/highlight": {
+      "version": "7.5.0",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.5.0.tgz",
+      "integrity": "sha512-7dV4eu9gBxoM0dAnj/BCFDW9LFU0zvTrkq0ugM7pnHEgguOEeOz1so2ZghEdzviYzQEED0r4EAgpsBChKy1TRQ==",
+      "dev": true,
+      "dependencies": {
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^4.0.0"
+      }
+    },
+    "node_modules/@types/estree": {
+      "version": "0.0.39",
+      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-0.0.39.tgz",
+      "integrity": "sha512-EYNwp3bU+98cpU4lAWYYL7Zz+2gryWH1qbdDTidVd6hkiR6weksdbMadyXKXNPEkQFhXM+hVO9ZygomHXp+AIw==",
+      "dev": true
+    },
+    "node_modules/@types/node": {
+      "version": "12.7.12",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.7.12.tgz",
+      "integrity": "sha512-KPYGmfD0/b1eXurQ59fXD1GBzhSQfz6/lKBxkaHX9dKTzjXbK68Zt7yGUxUsCS1jeTy/8aL+d9JEr+S54mpkWQ==",
+      "dev": true
+    },
+    "node_modules/acorn": {
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
+      "integrity": "sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg==",
+      "dev": true,
+      "bin": {
+        "acorn": "bin/acorn"
+      },
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
+    "node_modules/acorn-dynamic-import": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/acorn-dynamic-import/-/acorn-dynamic-import-4.0.0.tgz",
+      "integrity": "sha512-d3OEjQV4ROpoflsnUA8HozoIR504TFxNivYEUi6uwz0IYhBkTDXGuWlNdMtybRt3nqVx/L6XqMt0FxkXuWKZhw==",
+      "deprecated": "This is probably built in to whatever tool you're using. If you still need it... idk",
+      "dev": true,
+      "peerDependencies": {
+        "acorn": "^6.0.0"
+      }
+    },
+    "node_modules/acorn-jsx": {
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.2.tgz",
+      "integrity": "sha512-tiNTrP1MP0QrChmD2DdupCr6HWSFeKVw5d/dHTu4Y7rkAkRhU/Dt7dphAfIUyxtHpl/eBVip5uTNSpQJHylpAw==",
+      "dev": true,
+      "peerDependencies": {
+        "acorn": "^6.0.0 || ^7.0.0"
+      }
+    },
+    "node_modules/ajv": {
+      "version": "6.10.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.2.tgz",
+      "integrity": "sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==",
+      "dev": true,
+      "dependencies": {
+        "fast-deep-equal": "^2.0.1",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.4.1",
+        "uri-js": "^4.2.2"
+      }
+    },
+    "node_modules/ajv-keywords": {
+      "version": "3.4.1",
+      "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.4.1.tgz",
+      "integrity": "sha512-RO1ibKvd27e6FEShVFfPALuHI3WjSVNeK5FIsmme/LYRNxjKuNj+Dt7bucLa6NdSv3JcVTyMlm9kGR84z1XpaQ==",
+      "dev": true,
+      "peerDependencies": {
+        "ajv": "^6.9.1"
+      }
+    },
+    "node_modules/ansi-escapes": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
+      "integrity": "sha512-cBhpre4ma+U0T1oM5fXg7Dy1Jw7zzwv7lt/GoCpr+hDQJoYnKVPLL4dCvSEFMmQurOQvSrwT7SL/DAlhBI97RQ==",
+      "dev": true,
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/ansi-regex": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+      "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+      "dev": true,
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/ansi-styles": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+      "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+      "dev": true,
+      "dependencies": {
+        "color-convert": "^1.9.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/argparse": {
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+      "dev": true,
+      "dependencies": {
+        "sprintf-js": "~1.0.2"
+      }
+    },
+    "node_modules/array-includes": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/array-includes/-/array-includes-3.0.3.tgz",
+      "integrity": "sha1-GEtI9i2S10UrsxsyMWXH+L0CJm0=",
+      "dev": true,
+      "dependencies": {
+        "define-properties": "^1.1.2",
+        "es-abstract": "^1.7.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/astral-regex": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/astral-regex/-/astral-regex-1.0.0.tgz",
+      "integrity": "sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg==",
+      "dev": true,
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/balanced-match": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
+      "dev": true
+    },
+    "node_modules/big.js": {
+      "version": "5.2.2",
+      "resolved": "https://registry.npmjs.org/big.js/-/big.js-5.2.2.tgz",
+      "integrity": "sha512-vyL2OymJxmarO8gxMr0mhChsO9QGwhynfuu4+MHTAW6czfq9humCB7rKpUjDd9YUiDPU4mzpyupFSvOClAwbmQ==",
+      "dev": true,
+      "engines": {
+        "node": "*"
+      }
+    },
+    "node_modules/brace-expansion": {
+      "version": "1.1.11",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "dev": true,
+      "dependencies": {
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
+      }
+    },
+    "node_modules/buble": {
+      "version": "0.19.8",
+      "resolved": "https://registry.npmjs.org/buble/-/buble-0.19.8.tgz",
+      "integrity": "sha512-IoGZzrUTY5fKXVkgGHw3QeXFMUNBFv+9l8a4QJKG1JhG3nCMHTdEX1DCOg8568E2Q9qvAQIiSokv6Jsgx8p2cA==",
+      "dev": true,
+      "dependencies": {
+        "acorn": "^6.1.1",
+        "acorn-dynamic-import": "^4.0.0",
+        "acorn-jsx": "^5.0.1",
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       "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.2.tgz",
       "integrity": "sha512-tiNTrP1MP0QrChmD2DdupCr6HWSFeKVw5d/dHTu4Y7rkAkRhU/Dt7dphAfIUyxtHpl/eBVip5uTNSpQJHylpAw==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "ajv": {
       "version": "6.10.2",
@@ -70,7 +2547,8 @@
       "version": "3.4.1",
       "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.4.1.tgz",
       "integrity": "sha512-RO1ibKvd27e6FEShVFfPALuHI3WjSVNeK5FIsmme/LYRNxjKuNj+Dt7bucLa6NdSv3JcVTyMlm9kGR84z1XpaQ==",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "ansi-escapes": {
       "version": "3.2.0",
@@ -157,9 +2635,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "6.3.0",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.3.0.tgz",
-          "integrity": "sha512-/czfa8BwS88b9gWQVhc8eknunSA2DoJpJyTQkhheIf5E48u1N0R4q/YxxsAeqRrmK9TQ/uYfgLDfZo91UlANIA==",
+          "version": "6.4.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+          "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
           "dev": true
         }
       }
@@ -406,7 +2884,8 @@
       "version": "14.1.0",
       "resolved": "https://registry.npmjs.org/eslint-config-standard/-/eslint-config-standard-14.1.0.tgz",
       "integrity": "sha1-sj2it2/louumaDdPJGRU5wWPFdQ=",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "eslint-import-resolver-node": {
       "version": "0.3.2",
@@ -588,7 +3067,8 @@
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/eslint-plugin-standard/-/eslint-plugin-standard-4.0.1.tgz",
       "integrity": "sha1-/wUZ9/+v8RT3bRvXw5lu7w9uILQ=",
-      "dev": true
+      "dev": true,
+      "requires": {}
     },
     "eslint-scope": {
       "version": "5.0.0",
@@ -1111,9 +3591,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.15",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
-      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
+      "version": "4.17.19",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
+      "integrity": "sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==",
       "dev": true
     },
     "magic-string": {
diff --git a/package.json b/package.json
index 8610be8..2e4d503 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,11 @@
 {
   "name": "visual-heatmap",
-  "version": "1.0.4",
+  "version": "1.0.5",
   "description": "\"Advanced Visual Heatmap - High Scale webGL based rendering.\"",
   "main": "main.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "dev": "rollup -wm -c rollup.config.js",
+    "build": "rm -rf ./dist/ && rollup -c rollup.config.js"
   },
   "repository": {
     "type": "git",