I'm currently working to find the intersections between linears in a shapefile. I'm a newbie to the GDAL/OGR library. I've done some googling and came up with what seems to be a useful example(see below). There is a problem though. I don't see the method ExportToWkt(). My intellisense(or whatever it's called in IDLE) for the variable "intersection"doesn't have that option. Can anybody tell me what I'm doing wrong. Or just give me some general guidance to comparing two features in a shapefile and finding the intersection(if they intersect at all). Thanks.
from osgeo import ogr wkt1 = "POLYGON ((1208064.271243039 624154.6783778917, 1208064.271243039 601260.9785661874, 1231345.9998651114 601260.9785661874, 1231345.9998651114 624154.6783778917, 1208064.271243039 624154.6783778917))" wkt2 = "POLYGON ((1199915.6662253144 633079.3410163528, 1199915.6662253144 614453.958118695, 1219317.1067437078 614453.958118695, 1219317.1067437078 633079.3410163528, 1199915.6662253144 633079.3410163528)))" poly1 = ogr.CreateGeometryFromWkt(wkt1) poly2 = ogr.CreateGeometryFromWkt(wkt2) intersection = poly1.Intersection(poly2) print intersection.ExportToWkt()
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from osgeo import ogr wkt1 = "POLYGON ((1208064.271243039 624154.6783778917, 1208064.271243039 601260.9785661874, 1231345.9998651114 601260.9785661874, 1231345.9998651114 624154.6783778917, 1208064.271243039 624154.6783778917))" wkt2 = "POLYGON ((1199915.6662253144 633079.3410163528, 1199915.6662253144 614453.958118695, 1219317.1067437078 614453.958118695, 1219317.1067437078 633079.3410163528, 1199915.6662253144 633079.3410163528)))" poly1 = ogr.CreateGeometryFromWkt(wkt1) poly2 = ogr.CreateGeometryFromWkt(wkt2) intersection = poly1.Intersection(poly2) print intersection.ExportToWkt()
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