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Ran 19 Apr 2026 02:15PM UTC

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Committed 19 Apr 2026 02:02PM UTC coverage: 42.432% (+0.004%) from 42.428%

Job # 24630881590.1

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push

github

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web-flow

Commit Message

Add GetFeatureInfo support for CONNECTIONTYPE KERNELDENSITY/IDW layers (#7478)

* Add GetFeatureInfo support for CONNECTIONTYPE KERNELDENSITY/IDW layers

msRasterQueryByRect() previously returned immediately with no results
when layer->data and layer->tileindex were both NULL, which is always
the case for KERNELDENSITY and IDW layers. These connection types
generate an in-memory GDAL dataset on the fly via msInterpolationDataset().

Changes:
- Bypass the early-return guard for KERNELDENSITY/IDW in msRasterQueryByRect()
- Call msGDALInitialize() unconditionally before the dataset branch so the
  GDAL MEM driver is always registered
- Compute map->cellsize via msAdjustExtent() when it is 0 (query path does
  not call msCalculateScale() unlike the draw path), restore it afterwards
- Create and query the interpolation dataset, then clean up as in the draw path

Test: new RUN_PARMS in msautotest/gdal/heat.map exercising WMS GetFeatureInfo
against the existing kerneldensity heatmap layer.

* pre-commit

---------

Co-authored-by: Trygve Aspenes <trygveas@met.no>

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