|  |  |  | libmemphis Reference Manual |  | 
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| Top | Description | Object Hierarchy | Properties | ||||
MemphisRenderer; MemphisRenderer* memphis_renderer_new (); MemphisRenderer* memphis_renderer_new_full (MemphisRuleSet *rules,MemphisMap *map); void memphis_renderer_free (MemphisRenderer *renderer); void memphis_renderer_set_resolution (MemphisRenderer *renderer,guint resolution); void memphis_renderer_set_map (MemphisRenderer *renderer,MemphisMap *map); void memphis_renderer_set_rule_set (MemphisRenderer *renderer,MemphisRuleSet *rules); guint memphis_renderer_get_resolution (MemphisRenderer *renderer); MemphisMap* memphis_renderer_get_map (MemphisRenderer *renderer); MemphisRuleSet* memphis_renderer_get_rule_set (MemphisRenderer *renderer); void memphis_renderer_draw_tile (MemphisRenderer *renderer,cairo_t *cr,guint x,guint y,guint zoom_level); gint memphis_renderer_get_row_count (MemphisRenderer *renderer,guint zoom_level); gint memphis_renderer_get_column_count (MemphisRenderer *renderer,guint zoom_level); gint memphis_renderer_get_min_x_tile (MemphisRenderer *renderer,guint zoom_level); gint memphis_renderer_get_max_x_tile (MemphisRenderer *renderer,guint zoom_level); gint memphis_renderer_get_min_y_tile (MemphisRenderer *renderer,guint zoom_level); gint memphis_renderer_get_max_y_tile (MemphisRenderer *renderer,guint zoom_level); gboolean memphis_renderer_tile_has_data (MemphisRenderer *renderer,guint x,guint y,guint zoom_level);
"map" MemphisMap* : Read / Write "resolution" guint : Read / Write "rule-set" MemphisRuleSet* : Read / Write
The Memphis tile renderer implements the 'Slippy Map Tilename' specification, like Mapnik and Osmarender. It supports zoom level 12 to 18, projected with the Mercator projection.
Every level has 2^(zoom level) images in x and y direction (enumarated from 0 to 2^(zoom level)-1). Tiles without data are rendered filled with the background color of the map.
MemphisRenderer* memphis_renderer_new ();
| Returns : | a fresh MemphisRenderer. | 
Since 0.1
MemphisRenderer* memphis_renderer_new_full (MemphisRuleSet *rules,MemphisMap *map);
| 
 | a MemphisRuleSet. [allow-none] | 
| 
 | a MemphisMap. [allow-none] | 
| Returns : | a fresh MemphisRenderer with the given rules and map. | 
Since 0.1
void                memphis_renderer_free               (MemphisRenderer *renderer);
Frees the memory of MemphisRenderer.
| 
 | a MemphisRenderer | 
Since 0.1
void memphis_renderer_set_resolution (MemphisRenderer *renderer,guint resolution);
Set the resoltion of a tile.
| 
 | a MemphisRenderer | 
| 
 | the resolution of a tile | 
Since 0.1
void memphis_renderer_set_map (MemphisRenderer *renderer,MemphisMap *map);
Assigns a MemphisMap to the renderer.
| 
 | a MemphisRenderer | 
| 
 | a MemphisMap | 
Since 0.1
void memphis_renderer_set_rule_set (MemphisRenderer *renderer,MemphisRuleSet *rules);
Sets the drawing rules for the renderer.
| 
 | a MemphisRenderer | 
| 
 | a MemphisRuleSet | 
Since 0.2
guint               memphis_renderer_get_resolution     (MemphisRenderer *renderer);
| 
 | a MemphisRenderer | 
| Returns : | the resoltion of a tile. | 
Since 0.1
MemphisMap*         memphis_renderer_get_map            (MemphisRenderer *renderer);
| 
 | a MemphisRenderer | 
| Returns : | the MemphisMap of this renderer. [allow-none] | 
Since 0.1
MemphisRuleSet*     memphis_renderer_get_rule_set       (MemphisRenderer *renderer);
| 
 | a MemphisRenderer | 
| Returns : | the MemphisRuleSet of the renderer. [allow-none] | 
Since 0.1
void memphis_renderer_draw_tile (MemphisRenderer *renderer,cairo_t *cr,guint x,guint y,guint zoom_level);
Renders a tile.
| 
 | a MemphisRenderer | 
| 
 | a Cairo context. [inout] | 
| 
 | x coordinates | 
| 
 | y coordinates | 
| 
 | the zoom level | 
Since 0.1
gint memphis_renderer_get_row_count (MemphisRenderer *renderer,guint zoom_level);
| 
 | a MemphisRenderer | 
| 
 | the zoom level | 
| Returns : | the total number of tile rows for this zoom level. | 
Since 0.1
gint memphis_renderer_get_column_count (MemphisRenderer *renderer,guint zoom_level);
| 
 | a MemphisRenderer | 
| 
 | the zoom level | 
| Returns : | the total number of tile columns for this zoom level. | 
Since 0.1
gint memphis_renderer_get_min_x_tile (MemphisRenderer *renderer,guint zoom_level);
| 
 | a MemphisRenderer | 
| 
 | the zoom level | 
| Returns : | the smallest tile x coordinate with data for this zoom level. | 
Since 0.1
gint memphis_renderer_get_max_x_tile (MemphisRenderer *renderer,guint zoom_level);
| 
 | a MemphisRenderer | 
| 
 | the zoom level | 
| Returns : | the biggest tile x coordinate with data for this zoom level. | 
Since 0.1
gint memphis_renderer_get_min_y_tile (MemphisRenderer *renderer,guint zoom_level);
| 
 | a MemphisRenderer | 
| 
 | the zoom level | 
| Returns : | the smallest tile y coordinate with data for this zoom level. | 
Since 0.1
gint memphis_renderer_get_max_y_tile (MemphisRenderer *renderer,guint zoom_level);
| 
 | a MemphisRenderer | 
| 
 | the zoom level | 
| Returns : | the biggest tile y coordinate with data for this zoom level. | 
Since 0.1
gboolean memphis_renderer_tile_has_data (MemphisRenderer *renderer,guint x,guint y,guint zoom_level);
| 
 | a MemphisRenderer | 
| 
 | x coordinates | 
| 
 | y coordinates | 
| 
 | the zoom level | 
| Returns : | true if the renderer has map data for this zoom level and tile number. If no data is available an empty tile with background color will be rendered. | 
Since 0.1
"resolution" property"resolution" guint : Read / Write
The tile resolution in pixels.
Allowed values: [8,2048]
Default value: 256
Since 0.1