render.c File Reference

Vedit library - render vector features (used by wxGUI digitizer) More...

#include <math.h>
#include <grass/vedit.h>

Include dependency graph for vector/vedit/render.c:

Go to the source code of this file.

Functions
struct robject_list *	Vedit_render_map (struct Map_info *Map, struct bound_box *box, int draw_flag, double center_easting, double center_northing, int map_width, int map_height, double map_res)
	Render vector features into list.

Detailed Description

Vedit library - render vector features (used by wxGUI digitizer)

(C) 2010-2011 by the GRASS Development Team

This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.

Author

Martin Landa <landa.martin gmail.com>

Definition in file vector/vedit/render.c.

Function Documentation

Vedit_render_map()

struct robject_list * Vedit_render_map	(	struct Map_info *	Map,
		struct bound_box *	box,
		int	draw_flag,
		double	center_easting,
		double	center_northing,
		int	map_width,
		int	map_height,
		double	map_res
	)

Render vector features into list.

Parameters

Map	pointer to Map_info structure
box	bounding box of region to be rendered
draw_flag	types of objects to be rendered (see vedit.h)
center_easing,center_northing,map_width,map_height,map_res	values used for conversion en->xy

Returns

pointer to robject_list structure

Definition at line 59 of file vector/vedit/render.c.

References DRAW_AREA, DRAW_DIRECTION, DRAW_NODEONE, DRAW_NODETWO, DRAW_VERTEX, bound_box::E, robject::fid, G_debug(), G_malloc, G_realloc, GV_LINES, GV_POINTS, bound_box::N, NULL, bound_box::S, state, Vect_destroy_boxlist(), Vect_new_boxlist(), Vect_select_areas_by_box(), Vect_select_lines_by_box(), and bound_box::W.