KlimatanalysNorr/tools - Backend utilities for Klimatanalys Norr's web map.

	Commit message (Collapse)	Author	Age	Files
*	webmap-import: Improve INFO message.	Guilhem Moulin	2024-06-11	1
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*	Improve comments.	Guilhem Moulin	2024-06-11	1
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*	webmap-import: Add geometry conversion support.	Guilhem Moulin	2024-06-11	1
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*	Fix extent logic when the SRS of the output layer is not the destination SRS.	Guilhem Moulin	2024-06-11	1
\| \| \| \| \| \|	The extent is expressed in config['SRS'] in traditional GIS order (easting/northing ordered: minX, minY, maxX, maxY), but the destination layers might be pre-existing and use other SRS:es or mapping strategy.
*	Wording	Guilhem Moulin	2024-06-11	1
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*	Add support for reprojection into the destination SRS.	Guilhem Moulin	2024-06-11	1
\| \| \| \| \| \|	The configured extent is always expressed in the destination SRS, so it needs to be transformed into the source SRS. Like apps/ogr2ogr_lib.cpp, we segmentize it to make sure it is sufficiently densified.
*	Add TZFlag support (for GDAl ≥3.8).	Guilhem Moulin	2024-06-10	1
\| \| \| \|	(Commented out in config.yml for now since Bookworm has only v3.6.)
*	webmap-import: Don't try to set description if it is unset in config.yml.	Guilhem Moulin	2024-06-10	1
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*	webmap-import: Rename getFieldTypeCode() to parseFieldType().	Guilhem Moulin	2024-06-10	1
\| \| \| \|	And getFieldSubTypeCode() to parseSubFieldType().
*	Add `webmap-import` script to import source layers.	Guilhem Moulin	2024-06-10	1
	There is still a few things to do (such as reprojection and geometry changes) but it's mostly working. We roll out our own ogr2ogr/GDALVectorTranslate()-like function version because GDALVectorTranslate() insists in calling StartTransaction() https://github.com/OSGeo/gdal/issues/3403 while we want a single transaction for the entire desination layer, including truncation, source imports, and metadata changes. Surprisingly our version is not much slower than the C++ one. Importing the 157446 (of 667034) features from sksUtfordAvverk-2000-2015.shp takes 14.3s while ogr2ogr -f PostgreSQL \ -doo ACTIVE_SCHEMA=postgis \ --config PG_USE_COPY YES \ --config OGR_TRUNCATE YES \ -append \ -fieldmap "0,-1,-1,-1,-1,1,2,3,4,5,6,7,8,9,10,11,12,13" \ -nlt MULTIPOLYGON -nlt PROMOTE_TO_MULTI \ -gt unlimited \ -spat 110720 6927136 1159296 7975712 \ -nln "sks:UtfordAvverk" \ PG:"dbname='webmap' user='webmap_import'" \ /tmp/x/sksUtfordAvverk-2000-2015.shp \ sksUtfordAvverk-2000-2015 takes 14s. Merely opening /tmp/x/sksUtfordAvverk-2000-2015.shp and looping through its (extent-filtered) features results in a runtime of 4.3s.