RenderingPluginAPI

Symbolization Structures

Stroke:

typedef struct {                                                                                                
    double width; /* line width in pixels */                                                                    
                                                                                                                
    /* line pattern, e.g. dots, dashes, etc.. */                                                                
    int patternlength;                                                                                          
    double pattern[MS_MAXPATTERNLENGTH];                                                                        
                                                                                                                
    /* must not be NULL, must be a valid color */                                                               
    /* color.alpha must be used if supported by the renderer */                                                 
    colorObj color;                                                                                             
                                                                                                                
    int linecap; /* MS_CJC_TRIANGLE, MS_CJC_SQUARE, MS_CJC_ROUND, MS_CJC_BUTT */                                
    int linejoin; /* MS_CJC_BEVEL MS_CJC_ROUND MS_CJC_MITER */                                                  
    double linejoinmaxsize;                                                                                     
} strokeStyleObj;                                                                                               

Fill:

typedef struct {                                                                                                
    /* must not be NULL, must be a valid color *                                                                
     * color.alpha must be used if supported by the renderer */                                                 
    colorObj color;                                                                                             
                                                                                                                
                                                                                                                
    /* if not null, use the passed tile (which is a pointer to a                                                
     * renderer specific structure) for tiling the polygon */                                                   
    void *tile;                                                                                                 
                                                                                                                
} fillStyleObj;                                                                                                 

Booleans

• supports_imagecach
• supports_pixel_buffer
• supports_transparent_layers

Functions

• void startNewLayer(imageObj *img, double opacity)

• void closeNewLayer(imageObj *img, double opacity)

• imageObj *createImage(int width, int height, outputFormatObj format, colorObj bg)

• int saveImage(imageObj *img, FILE *fp, outputFormatObj *format)

• void freeImage(imageObj *img)

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

• void renderLine(imageObj *img, shapeObj *p, strokeStyleObj *stroke)

• void renderPolygon(imageObj *img, shapeObj *p, colorObj *c)

• void renderGlyphsLine(imageObj *img, labelPathObj *labelpath, labelStyleObj *style, char *text)

• void renderGlyphs(imageObj *img,double x, double y, labelStyleObj *style, char *text)

• void renderEllipseSymbol(imageObj *img, double x, double y, symbolObj *symbol, symbolStyleObj *style)

• void renderVectorSymbol(imageObj *img, double x, double y, symbolObj *symbol, symbolStyleObj *style)

• void renderTruetypeSymbol(imageObj *img, double x, double y, symbolObj *symbol, symbolStyleObj *s)

• void renderPixmapSymbol(imageObj *img, double x, double y, symbolObj *symbol, symbolStyleObj *style)

• void renderTile(imageObj *img, imageObj *tile, double x, double y)

• void renderPolygonTiled(imageObj *img, shapeObj *p, imageObj *tile)

• void getRasterBuffer(imageObj *img, rasterBufferObj *rb)

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

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

• void freeTile(imageObj *tile)

• void freeSymbol(symbolObj *s)