The generic DXF shape import driver (the one that uses GDAL OGR) has been improved. Polyline and lwpolyline entities that use arc budging for smooth curves are now read more accurately (since OGR only supports straight-line polygons, they are tesselated). The tesselation rate can be specified by the user in terms of a tolerance angle.
For a visual reference, these images show the before vs. after: www.daylongraphics.com/products/leveller/gallery/dxf_unsmooth.png www.daylongraphics.com/products/leveller/gallery/dxf_smooth.png Ray
