Function:ns2point
From S2PLOT
Revision as of 01:40, 30 October 2007; view current revision
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ns2point
Draw a point at the given position and colour.
Prototype
void ns2point(float x, float y, float z, float red, float green, float blue);
Description
Draw a point at the position (x,y,z) with RBG colour (red,green,blue).
See Also
| ns2vpoint | Draw a point at the given position and colour - vector input. |
| ns2thpoint | Draw a thick point at given position, in colour and thickness in pixels (not world coords). |
| ns2vthpoint | Draw a thick point at given position, in colour and thickness in pixels (not world coords) - vector input. |
Code Example
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "s2plot.h"
int main(int argc, char *argv[])
{
int N = 100; /* Number of points */
float x, y, z; /* Positions */
float r, g, b; /* Colours */
int i;
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); /* Note this does NOT change linewidth - use ns2thpoint */
for (i=0;i<N;i++) { /* Random data positions */
x = drand48()*2.0 - 1.0;
y = drand48()*2.0 - 1.0;
z = drand48()*2.0 - 1.0;
r = drand48();
g = drand48();
b = drand48();
ns2point(x,y,z, r,g,b); /* Draw the point */
}
s2show(1); /* Open the s2plot window */
return 1;
}
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