Черных Илья

cs/TagsCloudVisualization/CircularCloudLayouter.cs

@@ -0,0 +1,48 @@
+using System.Drawing;
+
+namespace TagsCloudVisualization;
+
+public class CircularCloudLayouter : ICircularCloudLayouter
+{
+    private readonly Point center;
+    private readonly List<Rectangle> addedRectangles;
+    private double currentAngleOfSpiral;
+    private double currentRadiusOfSpiral;
+
+    public CircularCloudLayouter(Point center)
+    {
+        this.center = center;
+        addedRectangles = new List<Rectangle>();
+    }
+
+    public Rectangle PutNextRectangle(Size rectangleSize)
+    {
+        Rectangle rectangle;
+
+        do
+        {
+            var x = center.X + (int)(currentRadiusOfSpiral * Math.Cos(currentAngleOfSpiral)) - rectangleSize.Width / 2;
+            var y = center.Y + (int)(currentRadiusOfSpiral * Math.Sin(currentAngleOfSpiral)) - rectangleSize.Height / 2;
+            rectangle = new Rectangle(new Point(x, y), rectangleSize);
+
+            // увеличиваем угол на 1 градус
+            currentAngleOfSpiral += Math.PI / 180; 
+
+            // проверяем не прошли ли целый круг
+            if (currentAngleOfSpiral > 2 * Math.PI)
+            {
+                currentAngleOfSpiral = 0;
+                currentRadiusOfSpiral++;
+            }
+        } while (IntersectWithAddedRectangles(rectangle));
+
+        addedRectangles.Add(rectangle);
+
+        return rectangle;
+    }
+
+    private bool IntersectWithAddedRectangles(Rectangle rectangle)
+    {
+        return addedRectangles.Any(addedRectangle => addedRectangle.IntersectsWith(rectangle));
+    }
+}

cs/TagsCloudVisualization/ICircularCloudLayouter.cs

@@ -0,0 +1,8 @@
+using System.Drawing;
+
+namespace TagsCloudVisualization;
+
+public interface ICircularCloudLayouter
+{
+    Rectangle PutNextRectangle(Size rectangleSize);
+}

cs/TagsCloudVisualization/README.md

@@ -0,0 +1,3 @@
+![Визуализация десяти прямоугольников](images/visualization10Rectangles.png)
+![Визуализация пятидесяти прямоугольников](images/visualization50Rectangles.png)
+![Визуализация ста прямоугольников](images/visualization100Rectangles.png)

cs/TagsCloudVisualization/TagsCloudVisualization.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net8.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <PackageReference Include="System.Drawing.Common" Version="6.0.0" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <Folder Include="images\" />
+    </ItemGroup>
+
+</Project>

cs/TagsCloudVisualization/VisualizationCircularCloudLayout.cs

@@ -0,0 +1,39 @@
+using System.Drawing;
+using System.Drawing.Imaging;
+
+namespace TagsCloudVisualization;
+#pragma warning disable CA1416
+
+public class VisualizationCircularCloudLayout
+{
+    public static void DrawAndSaveLayout(List<Rectangle> rectangles, string fileName, string filePath)
+    {
+        const int padding = 10;
+        var minX = rectangles.Min(rectangle => rectangle.Left);
+        var minY = rectangles.Min(rectangle => rectangle.Top);
+        var maxX = rectangles.Max(rectangle => rectangle.Right);
+        var maxY = rectangles.Max(rectangle => rectangle.Bottom);
+        var width = maxX - minX + padding * 2;
+        var height = maxY - minY + padding * 2;
+
+        var random = new Random();
+
+        var bitmap = new Bitmap(width, height);
+        using var graphics = Graphics.FromImage(bitmap);
+
+        graphics.Clear(Color.White);
+
+        foreach (var rectangle in rectangles)
+        {
+            var shiftedRectangle = rectangle with { X = rectangle.X - minX + padding, Y = rectangle.Y - minY + padding };
+
+            var randomColor = Color.FromArgb(random.Next(256), random.Next(256), random.Next(256));
+
+            var brush = new SolidBrush(randomColor);
+            graphics.FillRectangle(brush, shiftedRectangle);
+            graphics.DrawRectangle(Pens.Black, shiftedRectangle);
+        }
+
+        bitmap.Save(Path.Combine(filePath, fileName), ImageFormat.Png);
+    }
+}

cs/Tests/CircularCloudLayouterTests.cs

@@ -0,0 +1,131 @@
+using System.Drawing;
+using FluentAssertions;
+using NUnit.Framework;
+using NUnit.Framework.Interfaces;
+using TagsCloudVisualization;
+
+namespace Tests;
+
+[TestFixture]
+public class CircularCloudLayouterTests
+{
+    private ICircularCloudLayouter cloudLayouter;
+    private List<Rectangle> addedRectangles;
+
+    [SetUp]
+    public void Setup()
+    {
+        cloudLayouter = new CircularCloudLayouter(new Point(0, 0));
+        addedRectangles = [];
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        if (TestContext.CurrentContext.Result.Outcome.Status != TestStatus.Failed) 
+            return;
+
+        var pathImageStored = TestContext.CurrentContext.TestDirectory + @"\imageFailedTests";
+
+        if (!Directory.Exists(pathImageStored))
+        {
+            Directory.CreateDirectory(pathImageStored);
+        }
+
+        var testName = TestContext.CurrentContext.Test.Name;
+
+        VisualizationCircularCloudLayout.DrawAndSaveLayout(addedRectangles, $"{testName}.png",
+            pathImageStored);
+
+        Console.WriteLine($@"Tag cloud visualization saved to file {pathImageStored}\{testName}.png");
+    }
+
+    [Test]
+    public void PutNextRectangle_ShouldRectangleInCenter_WhenAddFirstRectangle()
+    {
+        var rectangleSize = new Size(10, 15);
+
+        var addedRectangle = cloudLayouter.PutNextRectangle(rectangleSize);
+        var expectedRectangleStartPoint = new Point(-addedRectangle.Width / 2, - addedRectangle.Height / 2);
+
+        addedRectangle.Location.Should().BeEquivalentTo(expectedRectangleStartPoint);
+    }
+
+    [TestCase(10, 5, 15)]
+    [TestCase(50, 30, 100)]
+    [TestCase(100, 5, 50)]
+    public void PutNextRectangle_ShouldAddedRectanglesDoNotIntersect(int countRectangles, int minSideLength,
+        int maxSideLength)
+    {
+        var rectangleSizes = GetGeneratedRectangleSizes(countRectangles, minSideLength, maxSideLength);
+
+        addedRectangles.AddRange(rectangleSizes.Select(t => cloudLayouter.PutNextRectangle(t)));
+
+        for (var i = 0; i < addedRectangles.Count-1; i++)
+        {
+            addedRectangles
+                .Skip(i + 1)
+                .Any(addedRectangle => addedRectangle.IntersectsWith(addedRectangles[i]))
+                .Should()
+                .BeFalse();
+        }
+    }
+
+    [TestCase(10, 5, 15)]
+    [TestCase(50, 30, 100)]
+    [TestCase(100, 5, 50)]
+    public void CircleShape_ShouldBeCloseToCircle_WhenAddMultipleRectangles(int countRectangles, int minSideLength, 
+        int maxSideLength)
+    {
+        var rectangleSizes = GetGeneratedRectangleSizes(countRectangles, minSideLength, maxSideLength);
+
+        addedRectangles.AddRange(rectangleSizes.Select(t => cloudLayouter.PutNextRectangle(t)));
+
+        var distances = addedRectangles
+            .Select(rectangle => GetDistanceBetweenCenterRectangleAndCenterCloud(rectangle, new Point(0, 0)))
+            .ToArray();
+
+        for (var i = 1; i < distances.Length; i++)
+        {
+            var distanceBetweenRectangles = GetDistanceBetweenRectangles(addedRectangles[i], addedRectangles[i - 1]);
+            distances[i].Should().BeApproximately(distances[i - 1], distanceBetweenRectangles);
+        }
+    }
+
+
+    private static List<Size> GetGeneratedRectangleSizes(int countRectangles, int minSideLength, int maxSideLength)
+    {
+        var generatedSizes = new List<Size>();
+        var random = new Random();
+
+        for (var i = 0; i < countRectangles; i++)
+        {
+            var rectangleSize = new Size(random.Next(minSideLength, maxSideLength),
+                random.Next(minSideLength, maxSideLength));
+
+            generatedSizes.Add(rectangleSize);
+        }
+
+        return generatedSizes;
+    }
+
+    private static double GetDistanceBetweenCenterRectangleAndCenterCloud(Rectangle rectangle, Point center)
+    {
+        var centerRectangle = new Point(rectangle.X + rectangle.Width / 2, rectangle.Y + rectangle.Height / 2);
+
+        return GetDistanceBetweenPoints(centerRectangle, center);
+    }
+
+    private static double GetDistanceBetweenRectangles(Rectangle rectangle1, Rectangle rectangle2)
+    {
+        var centerRectangle1 = new Point(rectangle1.X + rectangle1.Width / 2, rectangle1.Y + rectangle1.Height / 2);
+        var centerRectangle2 = new Point(rectangle2.X + rectangle2.Width / 2, rectangle2.Y + rectangle2.Height / 2);
+
+        return GetDistanceBetweenPoints(centerRectangle1, centerRectangle2);
+    }
+
+    private static double GetDistanceBetweenPoints(Point point1, Point point2)
+    {
+        return Math.Sqrt(Math.Pow(point1.X - point2.X, 2) + Math.Pow(point1.Y - point2.Y, 2));
+    }
+}

cs/Tests/Tests.csproj

@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net8.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <PackageReference Include="FluentAssertions" Version="7.0.0-alpha.5" />
+      <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
+      <PackageReference Include="NUnit" Version="4.2.2" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\TagsCloudVisualization\TagsCloudVisualization.csproj" />
+    </ItemGroup>
+
+</Project>

cs/tdd.sln

@@ -7,6 +7,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BowlingGame", "BowlingGame\
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Samples", "Samples\Samples.csproj", "{B5108E20-2ACF-4ED9-84FE-2A718050FC94}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TagsCloudVisualization", "TagsCloudVisualization\TagsCloudVisualization.csproj", "{E344A7C8-C0E8-4231-BAAD-E2774B855CDF}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tests", "Tests\Tests.csproj", "{86B722F4-6F6A-4773-B2E6-233B10DB7492}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -21,6 +25,14 @@ Global
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 		{B5108E20-2ACF-4ED9-84FE-2A718050FC94}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E344A7C8-C0E8-4231-BAAD-E2774B855CDF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E344A7C8-C0E8-4231-BAAD-E2774B855CDF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E344A7C8-C0E8-4231-BAAD-E2774B855CDF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E344A7C8-C0E8-4231-BAAD-E2774B855CDF}.Release|Any CPU.Build.0 = Release|Any CPU
+		{86B722F4-6F6A-4773-B2E6-233B10DB7492}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{86B722F4-6F6A-4773-B2E6-233B10DB7492}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{86B722F4-6F6A-4773-B2E6-233B10DB7492}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{86B722F4-6F6A-4773-B2E6-233B10DB7492}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

cs/tdd.sln.DotSettings

@@ -1,6 +1,9 @@
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