gisdatapaths.h File Reference

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Functions
void	setupBundledGisDataPaths ()
	Configure GDAL_DATA / PROJ_DATA from bundled data folders if they can be located relative to the running executable.

Detailed Description

Author

Caleb Buahin caleb.nosp@m..bua.nosp@m.hin@g.nosp@m.mail.nosp@m..com

Date

2026

License\n GPL-3.0-or-later

Portable GDAL/PROJ data-directory resolution.

Detects the vcpkg-style gdal/ and proj/ share trees within the running application layout and points GDAL/PROJ at them via environment variables and GDAL's CPL config store. This lets a zipped/folder/bundle deployment of SWMMVis run without a system-wide GDAL/PROJ install or external GDAL_DATA / PROJ_DATA environment.

Search order (first match wins per subdir):

1. Next to the executable — applicationDirPath()/{gdal,proj} (Windows / Linux standard layout; also handles non-bundle macOS dev builds.)
2. macOS-only — applicationDirPath()/../Resources/{gdal,proj} (the standard .app/Contents/Resources/ bundle layout).

Call setupBundledGisDataPaths() once, after QCoreApplication has been constructed and before any GDAL/OGR/PROJ use.

Function Documentation

setupBundledGisDataPaths()

void setupBundledGisDataPaths

(

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Configure GDAL_DATA / PROJ_DATA from bundled data folders if they can be located relative to the running executable.

No-op when QCoreApplication has not been constructed yet, or when no candidate folder contains the expected marker files.

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