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I've done similar work before, for rotation, there is rotate function for polygons. In your case, add following line before adding feature to the layer: var originPoint = new OpenLayers.Geometry.Point(xCent, yCent).transform(map.displayProjection, map.projection); //center point for rotation polygonFeature.geometry.rotate(rot, originPoint); You can find ...


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We ran into the same problem last year, when we had to draw hundreds of parcels from legal descriptions into a geodatabase. COGO tools were the only thing that would allow us to draw and retain true curves. Unfortunately, COGO tools are not scritable. However, we were able to convert legal descriptions to txt format whereby we could then load them into ...



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