home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
gondwana.ecr.mu.oz.au/pub/
/
Graphics.tar
/
Graphics
/
avogl.tar.gz
/
avogl.tar
/
vogl
/
examples
/
simple.c
< prev
next >
Wrap
C/C++ Source or Header
|
1992-09-24
|
2KB
|
78 lines
#include <stdio.h>
#ifdef SGI
#include "gl.h"
#include "device.h"
#else
#include "vogl.h"
#include "vodevice.h"
#endif
/*
* A program showing basic line drawing, hardware text and (if applicable)
* colour. We set the coordinate system to -1.0 to 1.0 in X and Y.
*/
main(ac, av)
int ac;
char **av;
{
char *p, tmp[2];
float cw, ch;
short val;
prefposition(100L, 700L, 100L, 500L);
winopen("simple");
if (ac == 2)
font(atoi(av[1])); /* change font to the argument */
color(BLACK); /* set current color */
clear(); /* clear screen to current color */
ortho2(-1.0, 1.0, -1.0, 1.0); /* set bounds for drawing */
color(GREEN);
/* 2 d move to start where we want drawstr to start */
cmov2(-0.9, 0.9);
charstr("A Simple Example"); /* draw string in current color */
/*
* the next four lines draw the x
*/
move2(0.0, 0.0);
draw2(0.76, 0.76);
move2(0.0, 0.76);
draw2(0.76, 0.0);
cmov2(0.0, 0.5);
charstr("x done");
charstr("next sentence");
cmov(0.0, 0.1, -1.0);
/*
* One character at a time...
*/
tmp[1] = '\0';
for (p = "hello world"; *p != NULL; p++) {
tmp[0] = *p;
charstr(tmp);
}
/*
* the next five lines draw the square
*/
move2(0.,0.);
draw2(.76,0.);
draw2(.76,.76);
draw2(0.,.76);
draw2(0.,0.);
qdevice(KEYBD); /* enable the keyboard */
unqdevice(INPUTCHANGE);
qread(&val); /* wait for some input */
gexit(); /* set the screen back to its original state */
}