Function:ss2sbc
From S2PLOT
ss2sbc
Set the background colour.
Prototype
void ss2sbc(float r, float g, float b);
Description
Set the background colour. This call should usually be followed by calls to s2scr to set the 0th colour index to be the same as the background, and the 1st colour index to be the opposite.
See Also
| struct_COLOUR | Data structure for (r,g,b) colour indices. |
| ss2qbc | Query background colour |
| s2scr | Set colour representation, ie. define a colour associated with an index. |
| ss2sfc | Set the foreground colour. |
Code Example
#include <stdio.h>
#include <stdlib.h>
#include "s2plot.h"
int main(int argc, char *argv[])
{
float r, g, b; /* Background colour */
XYZ xyz = { 0.0, 0.0, 0.0 }; /* Position */
COLOUR col; /* Sphere colour */
float radius = 0.3; /* Radius */
s2opend("/?",argc, argv); /* Open the display */
r = 0.3; /* Background colour */
g = 0.7;
b = 0.2;
ss2sbc(r, g, b); /* Set background colour */
s2swin(-1.,1., -1.,1., -1.,1.); /* Set the window coordinates */
s2box("BCDET",0,0,"BCDET",0,0,"BCDET",0,0); /* Draw coordinate box */
col.r = 1.0-r; /* Sphere colour */
col.g = 1.0-g; /* Sphere colour */
col.b = 1.0-b; /* Sphere colour */
ns2vsphere(xyz, radius, col); /* Draw the sphere */
s2show(1); /* Open the s2plot window */
return 1;
}
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