pngdriver/line_width.c

Go to the documentation of this file.

/*!
   \file lib/pngdriver/line_width.c
 
   \brief GRASS png display driver - set line width
 
   (C) 2003-2014 by Per Henrik Johansen and 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 Per Henrik Johansen (original contributor)
   \author Glynn Clements
 */
 
#include <math.h>
#include "pngdriver.h"
 
/*!
   \brief Set line width
 
   \param width line width (double precision)
 */
void PNG_Line_width(double width)
{
    png.linewidth = (width < 0 ? 0 : (int)floor(width + 0.5));
}