Wendell Turner wrote:
Why would a shapefile only display when the map display is zoomed in?When zoomed in, the image displays correctly. When zoomed out, it gets this: msDrawMap(): Image handling error. Failed to draw layer named 'tfr'.; msDrawShape() General error message. Only polygon shapes can be drawn using a POLYGON layer definition. shpdump shows this: Shapefile Type: Polygon # of Shapes: 2 ... Shape:1 (Polygon) nVertices=0, nParts=0 Bounds:( nan, nan, 0, 0) to ( nan, nan, 0, 0) Is that a problem? If so, is there a way of removing that shape (possibly using gdal)?
Wendell, Something like the following might discard a particular shape: ogr2ogr out.shp in.shp -where "OGR_FID != 1" The OGR_FID should be the same as the shape id reported by shpdump. The shape in question is likely getting translated as something not polygon-like whenever the view includes "0,0". Best regards, -- ---------------------------------------+-------------------------------------- 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 _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
