Add hypsometric_integral to zonal module#1073
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brendancol merged 9 commits intomasterfrom Apr 11, 2026
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Add column/rasterize_kw params, fix accessor namespace to .xrs, clarify nodata semantics, specify float64 output dtype, add list-of-pairs zones support, note dask chunk alignment strategy.
Wire up _hi_dask_numpy (per-block aggregation + reduce + map_blocks paint-back) and _hi_dask_cupy (host transfer delegate) backends.
Add .xrs.zonal_hypsometric_integral() accessor method, top-level import in __init__.py, accessor test, and vector-zones test.
Add _to_numpy helper that handles cupy, dask, and numpy backends correctly, avoiding implicit cupy-to-numpy conversion error.
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Summary
hypsometric_integral(zones, values)toxrspatial/zonal.pycomputing HI = (mean - min) / (max - min) per zone, painted back to a raster.xrs.zonal_hypsometric_integral()accessor and top-levelxrspatialnamespaceTest plan