GRASS GIS 7 Programmer's Manual  7.5.svn(2018)-r72636
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cairodriver/set_window.c
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1 /*!
2  \file lib/cairodriver/set_window.c
3 
4  \brief GRASS cairo display driver - set window
5 
6  (C) 2007-2008 by Lars Ahlzen and the GRASS Development Team
7 
8  This program is free software under the GNU General Public License
9  (>=v2). Read the file COPYING that comes with GRASS for details.
10 
11  \author Lars Ahlzen <lars ahlzen.com> (original contibutor)
12  \author Glynn Clements
13 */
14 
15 #include "cairodriver.h"
16 
17 /*!
18  \brief Set window
19 
20  \param t,b,l,r top, bottom, left, right
21 */
22 void Cairo_Set_window(double t, double b, double l, double r)
23 {
24  G_debug(1, "Cairo_Set_window: %f %f %f %f", t, b, l, r);
25 
26  cairo_reset_clip(cairo);
27  cairo_rectangle(cairo, l, t, r - l, b - t);
28  cairo_clip(cairo);
29 
30  return;
31 }
void Cairo_Set_window(double, double, double, double)
Set window.
double l
Definition: r_raster.c:39
double t
Definition: r_raster.c:39
double b
Definition: r_raster.c:39
cairo_t * cairo
int G_debug(int level, const char *msg,...)
Print debugging message.
Definition: debug.c:65
GRASS cairo display driver - header file.
double r
Definition: r_raster.c:39