[1.0.0] Raster / Vector conversion

[brendancol]

1.0.0 readiness: Raster / Vector conversion

Area: Vector Functions: polygonize, contours, rasterize, clip_polygon
Source: xrspatial/{polygonize,contour,rasterize,polygon_clip}.py

Scope

• Public surface frozen against the README feature matrix
• Dark-corner decisions resolved (see [1.0.0] Scope freeze: reconcile dark corners #2930)

Sweep clearance, no CRITICAL or HIGH (accuracy and security first)

• Accuracy /deep-sweep xrspatial/polygonize.py
• Security
• Performance
• API consistency

Last swept: none yet

Examples

• Notebook example
• (optional) standalone script

Linked bug issues

• polygonize: dask backend processes chunks serially, no parallelism #2538 (Medium) polygonize: dask backend processes chunks serially, no parallelism
• Dask 8-connectivity float polygonize diverges from numpy at large rtol #2677 (High) Dask 8-connectivity float polygonize diverges from numpy at large rtol
• contours() validates return_type too late, wasting compute on invalid values #2788 (Low) contours() validates return_type too late, wasting compute on invalid values
• contours() emits degenerate and duplicate lines for exact-level plateaus #2790 (Medium) contours() emits degenerate and duplicate lines for exact-level plateaus
• contours(): n_levels is not validated as a positive integer #2791 (Low) contours(): n_levels is not validated as a positive integer
• contours() emits RuntimeWarning on all-NaN input with auto level selection #2795 (Low) contours() emits RuntimeWarning on all-NaN input with auto level selection