Amanda, I see a few issues.
On Tue, Mar 24, 2009 at 1:09 PM, AmandaH <[email protected]> wrote: > OSGeo.OGR.Driver new_drv = Ogr.GetDriverByName("ESRI Shapefile"); > OSGeo.OGR.SpatialReference new_sr = new OSGeo.OGR.SpatialReference(""); > OSGeo.OGR.DataSource ds_out = > new_drv.CreateDataSource("D:\\Vector\\Output\\new.shp", new string[] { }); > > new_sr.IsSameGeogCS(old_sr); IsSameGeogCS() is a test, returning a boolean. Was this intended to do something? > OSGeo.OGR.Layer new_layer = ds_out.CreateLayer("new_polygons", new_sr, > OSGeo.OGR.wkbGeometryType.wkbPolygon, new string[] { }); > > FeatureDefn new_def = new_layer.GetLayerDefn(); > OSGeo.OGR.Feature new_feat = new OSGeo.OGR.Feature(new_def); > > temp_geom = new Geometry(wkbGeometryType.wkbPolygon); > > dX = geom.GetX(iPoint); > dY = geom.GetY(iPoint); > dZ = geom.GetZ(iPoint); > > temp_geom.AddPoint(dX, dY, dZ); Polygons consists of rings, and the rings consist of points. So to add a point to the polygon you really need to add it to the first ring. I'm not positive what the method names are in C# but the gist of it is that you need to add a ring to the polygon. Then add the point to the ring. > new_feat.SetGeometryDirectly(temp_geom); > new_layer.CreateFeature(new_feat); > temp_geom.Dispose(); Note that SetGeometryDirectly() normally transfers ownership of the geometry to the feature, and you should not explicitly destroy the geometry that is owned by the feature. If you use SetGeometry() instead of SetGeometryDirectly() then the feature will make a copy of the passed geometry. Best regards, > -- > View this message in context: > http://n2.nabble.com/Writing-a-polygon-to-a-new-shapefile-tp2527864p2527864.html > Sent from the GDAL - Dev mailing list archive at Nabble.com. > > _______________________________________________ > gdal-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/gdal-dev > -- ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, [email protected] light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | Geospatial Programmer for Rent _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
