v1.0.4

v1.0.4

Bug fixes

• NearestValue index for rotated lat/lon grids (Template 3.1): Fixed canonical grid origin computation to use scanning mode flags instead of min/max heuristics. The O(1) path now matches brute-force search exactly on real RDPS data (1.2M point grid).
• GridCoordinates ordering: Now returns coordinates in canonical order (matching Values()), fixing the root cause where GridCoordinates[i] did not correspond to Values()[i] for non-zero scanning modes.
• SurfaceLevelHPa for RDPS isobaric encoding: Fixed double-division bug where CMC's compact hPa values were divided by 100 twice.

New features

• O(1) NearestValue and BilinearValue for Template 3.1 (rotated lat/lon)
• CMC local parameter codes: SkyTransparencyIndex (0,19,38), SeeingIndex (0,19,39)
• SurfaceLevel(), SurfaceLevelHPa(), SurfaceType() helpers with fallback for non-standard scale factors

Testing

• Regression test comparing O(1) vs brute-force search on Template31 grids
• Verified on real RDPS 1.2M point grid: NearestValue(32.715, -117.161) returns 291.59K (18.44C) matching GFS and Open-Meteo