Function msDrawLineSymbol

maprendering.c:395–524

}

int msDrawLineSymbol(symbolSetObj *symbolset, imageObj *image, shapeObj *p,
                     styleObj *style, double scalefactor)
{
   if (image)
   {
      if (MS_RENDERER_PLUGIN(image->format)) {
         rendererVTableObj *renderer = image->format->vtable;
         symbolObj *symbol;
         shapeObj *offsetLine = p;
         int i;
         double width;

         if (p->numlines == 0)
            return MS_SUCCESS;

         if (style->symbol >= symbolset->numsymbols || style->symbol < 0)
            return MS_SUCCESS; /* no such symbol, 0 is OK   */

         symbol = symbolset->symbol[style->symbol];
         /* store a reference to the renderer to be used for freeing */
         symbol->renderer = renderer;

         width = style->width * scalefactor;
         width = MS_MIN(width,style->maxwidth);
         width = MS_MAX(width,style->minwidth);

         if(style->offsety==-99) {
            offsetLine = msOffsetPolyline(p,style->offsetx * width/style->width,-99);
         } else if(style->offsetx!=0 || style->offsety!=0) {
            offsetLine = msOffsetPolyline(p, style->offsetx * width/style->width,
                  style->offsety * width/style->width);
         }
         if(style->symbol == 0 || (symbol->type==MS_SYMBOL_SIMPLE)) {
            strokeStyleObj s;
            s.linecap = style->linecap;
            s.linejoin = style->linejoin;
            s.linejoinmaxsize = style->linejoinmaxsize;
            s.width = width;
            s.patternlength = style->patternlength;
            for(i=0; i<s.patternlength; i++)
               s.pattern[i] = style->pattern[i]*s.width/style->width;

            if(MS_VALID_COLOR(style->color))
               s.color = &style->color;
            else if(MS_VALID_COLOR(style->outlinecolor))
               s.color = &style->outlinecolor;
            else {
               /* msSetError(MS_MISCERR,"no color defined for line styling","msDrawLineSymbol()"); 
                * not really an error */
               return MS_SUCCESS;
            }
            renderer->renderLine(image,offsetLine,&s);
         }
         else {
            symbolStyleObj s;
            switch (symbol->type) {
            case (MS_SYMBOL_TRUETYPE): {
               if(!symbol->full_font_path)