nx_geo_raster.nx

nx_geo_raster.nx -- LIB: GEO-020 RASTER RENDER (integer scanline polygon fill, even-odd rule). THE EXCEED ANGLE (measured): coverage is decided by INTEGER scanline crossings -- for each pixel row we find the polygon-edge x-crossings, sort them, and fill the spans between crossing pairs. ZERO floating point, half-open [lo,hi) edge rule -> a deterministic, gap-free, no-double-fill rasterization (the classic float rasterizer's seam/overlap artifacts at shared edges cannot occur). The same integer cross-style interpolation as the rest of nx_geo. Pixel (row,col) at grid[row*w + col]. Convention (matches nx_geo): poly = flat [y0,x0, y1,x1, ...] in PIXEL coords (y=row, x=col). Writes 1 to filled pixels of grid (a w*h byte buffer), returns the filled pixel count. license_tier: ORIGINAL