GRASS GIS 7 Programmer's Manual  7.5.svn(2017)-r71933
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point.c
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1 /*!
2  \file lib/pngdriver/point.c
3 
4  \brief GRASS png display driver - draw point
5 
6  (C) 2007-2014 by Glynn Clements 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 Glynn Clements
12 */
13 
14 #include <grass/gis.h>
15 #include "pngdriver.h"
16 
17 /*!
18  \brief Draw point
19 */
20 void PNG_Point(double x, double y)
21 {
22  static double point_size = 1.0;
23  double half_point_size = point_size / 2;
24 
25  PNG_Box(x - half_point_size, y - half_point_size,
26  point_size, point_size);
27 }
28 
GRASS png display driver - header file.
#define x
void PNG_Box(double fx1, double fy1, double fx2, double fy2)
Draw a (filled) rectangle.
Definition: pngdriver/box.c:24
void PNG_Point(double, double)
Draw point.
Definition: point.c:20