im_line3
Writes a line on a vasari image
Usage
#include <vips/vips.h>
int im_line(image, x1, y1, x2, y2, pelval)
IMAGE *image;
int x1, x2, y1, y2, pelval;
Overview
im_line() draws a line in the image held by image. The start of the line is at point (x1,y1) and the end is at (x2,y2). The intensity of the drawn line is pelval. Input image should be one byte unsigned char. The function overwrites any data in the file, so take care when applying it.
This function is here for compatibility only. You should use im_fastline(3) or im_fastlineuser(3).
Return value
The function returns 0 on success and -1 on error.
Releases
Unchanged in 4 releases since Debian 3.1 (Sarge).