pngdriver/line_width.c

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/*!
   \file lib/pngdriver/line_width.c
 
   \brief GRASS png display driver - set line width
 
   SPDX-FileCopyrightText: 2003-2014 Per Henrik Johansen
   SPDX-FileCopyrightText: GRASS Development Team
   SPDX-License-Identifier: GPL-2.0-or-later
 
   \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));
}