[gdal-dev] Convert x,y to pixel,line in an OGRLinearRing

[梁天辰]

Hello:
I've got an OGRLinearRing(or OGRPolygon and its type is wkbpolygon)and  affine transformation coefficients(topx,topy,cellxsize,cellysize), now I need to get pixel/line (P,L) raster space value of all points in that   OGRLinearRing object.Can anyone help? Thanks.
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