Hi,<br><br>I have a loaded an raster image using GDAL, and i want to provide a drawing tool using which user can draw an irregular shape on the raster image and then save the shape and the enclosing pixels in a vector format for future use. Can any one tell me how to do this in GDAL/OGR? <br>
<br><br>Thanks and regards,<br>Akhy Huckelheim<br><br>