Function msDrawShape

mapdraw.c:1399–2201

** Function to render an individual shape, the style variable enables/disables the drawing of a single style ** versus a single style. This is necessary when drawing entire layers as proper overlay can only be achived ** through caching. "querymapMode" parameter is used to tell msBindLayerToShape to not override the ** QUERYMAP HILITE color. */

** QUERYMAP HILITE color.
*/
int msDrawShape(mapObj *map, layerObj *layer, shapeObj *shape, imageObj *image, int style, int querymapMode)
{
  int i,j,c,s;
  rectObj cliprect;
  pointObj annopnt, *point;
  double** angles = NULL, **lengths = NULL;
  int bLabelNoClip = MS_FALSE;
  int annocallret = MS_FAILURE; /* Retvals for find-label-pnt calls */
  
  int hasGeomTransform = MS_FALSE;
  shapeObj nonClippedShape;
  
  pointObj center; /* circle origin */
  double r; /* circle radius */
  int csz; /* clip over size */
  double buffer;
  int minfeaturesize;
  int numpaths = 1, numpoints = 1, numRegularLines = 0;

  labelPathObj **annopaths = NULL; /* Curved label path. Bug #1620 implementation */
  pointObj     **annopoints = NULL;
  int           *regularLines = NULL;

  /* set clipping rectangle just a bit larger than the map extent */
/* Steve's original code 
  cliprect.minx = map->extent.minx - 2*map->cellsize; 
  cliprect.miny = map->extent.miny - 2*map->cellsize;
  cliprect.maxx = map->extent.maxx + 2*map->cellsize;
  cliprect.maxy = map->extent.maxy + 2*map->cellsize;
*/

  msDrawStartShape(map, layer, image, shape);

  c = shape->classindex;

  /* Before we do anything else, we will check for a rangeitem.
     If its there, we need to change the style's color to map
     the range to the shape */
  for(s=0; s<layer->class[c]->numstyles; s++) {
	styleObj *style = layer->class[c]->styles[s];
    if(style->rangeitem !=  NULL)
      msShapeToRange((layer->class[c]->styles[s]), shape);
    
    
  }
  
  /* adjust the clipping rectangle so that clipped polygon shapes with thick lines
   * do not enter the image */
  if(layer->class[c]->numstyles > 0 && layer->class[c]->styles[0] != NULL) {
      double maxsize,maxunscaledsize;
      symbolObj *symbol;
      styleObj *style = layer->class[c]->styles[0];
      if (!MS_IS_VALID_ARRAY_INDEX(style->symbol, map->symbolset.numsymbols)) {
          msSetError(MS_SYMERR, "Invalid symbol index: %d", "msDrawShape()", style->symbol);
          return MS_FAILURE;
      }
      symbol = map->symbolset.symbol[style->symbol];
      if(symbol->type == MS_SYMBOL_PIXMAP) {