id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc 4661,gdal_contour produces duplicate line-segments,bgp2000,warmerdam,"See attachment. I used the following command: gdal_contour.exe -i 10 cropped_smaller\bln08_ucx_ndom_spie2010.img cropped_smaller\test2 Some contours in the shape file are present two or three times. My setup: GDAL 1.8.1, released 2011/07/09 Windows 7 64 Bit",defect,closed,normal,closed_because_of_github_migration,OGR_SF,unspecified,normal,wontfix,gdal_contour,