Close #LGVISIUM-77: Wrong elevation value selected within bounding box

[dcleres]

Started to sort vertically the different text lines matched around the matched keyword. By sorting, it was possible to test which was the closest to the keyword first and thus reduce the number of false positives or errors in elevation and groundwater detection.

@stijnvermeeren-swisstopo In today's stand-up, we discussed the possibility of vertically and horizontally sorting the text. Currently, all the issues I found are solved with this code in combination with the improvements you made in the OCR processing. However, if you wish, I can also try this technique.

The metrics from the main branch are in silent-quail-641, and the performance of this branch is ambitious-mule-939

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
src/stratigraphy
__init__.py	8	1	88%	11
extract.py	186	186	0%	3–483
get_files.py	19	19	0%	3–47
main.py	119	119	0%	3–310
src/stratigraphy/data_extractor
data_extractor.py	52	3	94%	32, 62, 98
src/stratigraphy/depthcolumn
boundarydepthcolumnvalidator.py	41	20	51%	47, 57, 60, 81–84, 110–128, 140–149
depthcolumn.py	194	64	67%	25, 29, 50, 56, 59–60, 84, 87, 94, 101, 109–110, 120, 137–153, 191, 228, 247–255, 266, 271, 278, 309, 314–321, 336–337, 380–422
depthcolumnentry.py	28	6	79%	17, 21, 36, 39, 56, 65
find_depth_columns.py	106	19	82%	42–43, 73, 86, 180–181, 225–245
src/stratigraphy/layer
layer_identifier_column.py	74	52	30%	16–17, 20, 28, 43, 47, 51, 59–63, 66, 74, 91–96, 99, 112, 125–126, 148–158, 172–199
src/stratigraphy/lines
geometric_line_utilities.py	86	2	98%	81, 131
line.py	51	4	92%	25, 50, 60, 110
linesquadtree.py	46	1	98%	75
src/stratigraphy/metadata
coordinate_extraction.py	108	5	95%	30, 64, 94–95, 107
src/stratigraphy/text
description_block_splitter.py	70	2	97%	24, 139
extract_text.py	29	3	90%	19, 53–54
find_description.py	64	28	56%	27–35, 50–63, 79–95, 172–175
textblock.py	80	9	89%	28, 56, 64, 89, 101, 124, 145, 154, 183
src/stratigraphy/util
dataclasses.py	32	3	91%	37–39
interval.py	104	55	47%	29–32, 37–40, 46, 52, 56, 66–68, 107–153, 174, 180–196
predictions.py	107	107	0%	3–282
util.py	39	17	56%	41, 69–76, 90–92, 116–117, 129–133
TOTAL	1643	725	56%

Tests	Skipped	Failures	Errors	Time
82	0 💤	0 ❌	0 🔥	6.478s ⏱️

[stijnvermeeren-swisstopo]

Could you add a comment to https://jira.swisstopo.ch/browse/LGVISIUM-77 to describe the decision to only sort by vertical distance, as this already improves the results sufficiently, and that we therefore did not yet test the idea of looking horizontally and vertically (but not diagonally) from the key line.

[dcleres]

@stijnvermeeren-swisstopo I added a description on the rational of only sorting vertically to Jira and how this could be improved.

[stijnvermeeren-swisstopo]

Thanks for adding the comment on the Jira ticket. LGTM!