'''Rendering Plugin API Documentation'''

Booleans
  
  * supports_imagecach
  * supports_pixel_buffer
  * supports_transparent_layers

Functions

  * startNewLayer(imageObj *img, double opacity)
  * closeNewLayer(imageObj *img, double opacity)

  * createImage(int width, int height, outputFormatObj *format, colorObj* bg)
  * saveImage(imageObj *img, FILE *fp, outputFormatObj *format)
  * freeImage(imageObj *img)

  * transformShape(shapeObj *shape, rectObj extent, double cellsize)

  * renderLine(imageObj *img, shapeObj *p, strokeStyleObj *stroke)
  * renderPolygon(imageObj *img, shapeObj *p, colorObj *c)
  * renderGlyphsLine(imageObj *img, labelPathObj *labelpath, labelStyleObj *style, char *text)
  * renderGlyphs(imageObj *img,double x, double y, labelStyleObj *style, char *text)
  * renderEllipseSymbol(imageObj *img, double x, double y, symbolObj *symbol, symbolStyleObj *style)
  * renderVectorSymbol(imageObj *img, double x, double y, symbolObj *symbol, symbolStyleObj *style)
  * renderTruetypeSymbol(imageObj *img, double x, double y, symbolObj *symbol, symbolStyleObj *s)
  * renderPixmapSymbol(imageObj *img, double x, double y, symbolObj *symbol, symbolStyleObj *style)
  * renderTile(imageObj *img, imageObj *tile, double x, double y)
  * renderPolygonTiled(imageObj *img, shapeObj *p,  imageObj *tile)

  * getRasterBuffer(imageObj *img, rasterBufferObj *rb)
  * mergeRasterBuffer(imageObj *img, rasterBufferObj *rb, double opacity, int dstX, int dstY)

  * getTruetypeTextBBox(imageObj *img,char *font, double size, char *text, rectObj *rect, double **advances)

  * freeTile(imageObj *tile)
  * freeSymbol(symbolObj *s)