int main(int argc, char *argv[])
{
int i, N = 20;
float x[20], y[20], z[20]; /* Static geometry */
srand48((long)time(NULL)); /* Seed random numbers */
for (i=0;i<N;i++) {
x[i] = drand48()*4.0-2.0; /* Random positions */
y[i] = drand48()*4.0-2.0;
z[i] = drand48()*4.0-2.0;
}
s2opend("/?",argc, argv); /* Open the display */
s2swin(-2.,2., -2.,2., -2.,2.); /* Set the window coordinates */
s2box("BCDET",0,0,"BCDET",0,0,"BCDET",0,0); /* Draw coordinate box */
cs2scb(&cb); /* Install the callback */
cs2sncb(&ncb); /* Install number callback */
s2slw(4); /* Set line width */
s2sci(S2_PG_YELLOW);
s2pt(N,x,y,z,1); /* Draw static data */
s2slw(1);
s2show(1); /* Open the s2plot window */
return 1;
}
int main(int argc, char *argv[])
{
s2opend("/?",argc, argv); /* Open the display */
s2swin(-1.,1., -1.,1., -1.,1.); /* Set the window coordinates */
s2box("BCDET",0,0,"BCDET",0,0,"BCDET",0,0); /* Draw coordinate box */
cs2scb(&cb); /* Install callback */
cs2sncb(&numcb); /* Install number callback */
s2show(1); /* Open the s2plot window */
return 1;
}
int main(int argc, char *argv[])
{
srand48((long)time(NULL)); /* Seed random numbers */
s2opend("/?", argc, argv); /* Prompt for display type */
s2swin(-1.,1., -1.,1., -1.,1.); /* Set the window coordinates */
s2box("BCDET",0,0,"BCDET",0,0,"BCDET",0,0); /* Draw coordinate box */
cs2scb(cb); /* Install dynamic geometry callback */
cs2sncb(ncb); /* Install number key press callback */
char string[128]; /* Write instruction label */
sprintf(string,"Press 1 to protect, press 2 to unprotect");
s2lab("","","",string);
s2show(1); /* Open the s2plot window */
return 1;
}
int main(int argc, char *argv[])
{
int i, N = 20; /* Loop variables */
float x, y, z; /* Random data */
XYZ focus; /* Point to rotate about */
int wc = 1; /* Use world coordinates */
srand48((long)time(NULL)); /* Seed random numbers */
s2opend("/?",argc, argv); /* Open the display */
s2swin(-1.,1., -1.,1., -1.,1.); /* Set the window coordinates */
s2box("BCDET",0,0,"BCDET",0,0,"BCDET",0,0); /* Draw coordinate box */
s2slw(3); /* Set line width */
for (i=0;i<N;i++) {
x = drand48()*2.0 - 1.0; /* Random (x,y,z) */
y = drand48()*2.0 - 1.0;
z = drand48()*2.0 - 1.0;
s2sci(15*drand48() + 1); /* Random colour */
s2pt1(x,y,z,1); /* Plot the point */
}
focus.x = drand48()*2.0 - 1.0; /* Random rotation point */
focus.y = drand48()*2.0 - 1.0;
focus.z = drand48()*2.0 - 1.0;
ss2scf(focus, wc); /* Set the rotation point */
s2sch(0.7); /* Set text height */
s2textxy(-1,0,0,"Rotate camera - then press 1 followed by +");
cs2sncb(&numcb); /* Install number callback */
s2show(1); /* Open the s2plot window */
return 1;
}
