<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif">Hi list,</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><span class="gmail_default" style="font-family:tahoma,sans-serif">Currently, </span>GDALPolygonize<span class="gmail_default" style="font-family:tahoma,sans-serif"> [0] reads the data to an int32 buffer before processing them. </span><div><span class="gmail_default" style="font-family:tahoma,sans-serif"><br></span></div><div><span class="gmail_default" style="font-family:tahoma,sans-serif">If I invoke the function with UInt32 data, will the data be casted/truncated to Int32 and polygonized improperly or can I use it as it is?</span></div><div><font face="tahoma, sans-serif"><br></font></div><div><font face="tahoma, sans-serif"><span class="gmail_default" style="font-family:tahoma,sans-serif">Nikos</span><br></font><span class="gmail_default" style="font-family:tahoma,sans-serif"></span><div><span class="gmail_default" style="font-family:tahoma,sans-serif"><br></span></div><div><span class="gmail_default" style="font-family:tahoma,sans-serif"><br></span></div><div><span class="gmail_default" style="font-family:tahoma,sans-serif">[0] </span><a href="https://gdal.org/api/gdal_alg.html#_CPPv414GDALPolygonize15GDALRasterBandH15GDALRasterBandH9OGRLayerHiPPc16GDALProgressFuncPv">https://gdal.org/api/gdal_alg.html#_CPPv414GDALPolygonize15GDALRasterBandH15GDALRasterBandH9OGRLayerHiPPc16GDALProgressFuncPv</a></div></div></div>