Function msOWSGetLayerExtent

mapows.c:1651–1680

** msOWSGetLayerExtent() ** ** Try to establish layer extent, first looking for "ows_extent" metadata, and ** if not found then call msLayerGetExtent() which will lookup the ** layer->extent member, and if not found will open layer to read extent. ** */

**
*/
int msOWSGetLayerExtent(mapObj *map, layerObj *lp, const char *namespaces, rectObj *ext)
{
  const char *value;

  if ((value = msOWSLookupMetadata(&(lp->metadata), namespaces, "extent")) != NULL)
  {
    char **tokens;
    int n;

    tokens = msStringSplit(value, ' ', &n);
    if (tokens==NULL || n != 4) {
      msSetError(MS_WMSERR, "Wrong number of arguments for EXTENT metadata.",
                 "msOWSGetLayerExtent()");
      return MS_FAILURE;
    }
    ext->minx = atof(tokens[0]);
    ext->miny = atof(tokens[1]);
    ext->maxx = atof(tokens[2]);
    ext->maxy = atof(tokens[3]);

    msFreeCharArray(tokens, n);
    return MS_SUCCESS;
  }
  else
  {
      return msLayerGetExtent(lp, ext);
  }

  return MS_FAILURE;
}


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