GRASS Programmer's Manual 6.4.1(2011)
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#include <grass/gis.h>
Go to the source code of this file.
Functions | |
int | G_bresenham_line (int x0, int y0, int x1, int y1, int(*point)(int, int)) |
Bresenham line algorithm. |
int G_bresenham_line | ( | int | x0, |
int | y0, | ||
int | x1, | ||
int | y1, | ||
int(*)(int, int) | point | ||
) |
Bresenham line algorithm.
Draws a line from x1,y1 to x2,y2 using Bresenham's algorithm. A routine to plot points must be provided, as is defined as: point(x, y) plot a point at x,y.
This routine does not require a previous call to G_setup_plot() to function correctly, and is independent of all following routines.
[in] | x0 | |
[in] | y0 | |
[in] | x1 | |
[in] | y1 | |
[in] | point | pointer to point plotting function |
Definition at line 38 of file bres_line.c.