analyze the convex contour for cutter
rebuild type for the cutter
improve to analyze the convex concour for cutter
improve to make hint for line
...
impl more accurate polygon cutter
fix some bug for the polygon cutter
restore the polygon raster and add vertex raster
init edge table for the vertex raster
impl the vertex raster
fix the next y value bug for the vertex raster
patching the bottom y-coordinate
impl compute intersection for the vertex raster
compute the intersection of the vertex raster
fix intersection bug for the vertex raster
check the stroke width for render
fix the vertex raster sort bug
fix some bug for the vertex raster