Function:ns2vnpoint

From S2PLOT

ns2vnpoint

Draw multiple points at the given positions with one colour - vector input.

Prototype

void ns2vnpoint(XYZ *P, COLOUR col, int n);

Description

Draw n points at positions P with RBG colour (col), using vector data structures.

See Also

Code Example

1. include <stdio.h>
2. include <stdlib.h>
3. include <time.h>
4. include "s2plot.h"

int main(int argc, char *argv[]) {

  int N = 100;                                 /* Number of points */
  XYZ xyz[100];                                /* Positions */
  COLOUR col;                                  /* Colour */
  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 */
     xyz[i].x = drand48()*2.0 - 1.0;
     xyz[i].y = drand48()*2.0 - 1.0;
     xyz[i].z = drand48()*2.0 - 1.0;
     col.r = drand48();
     col.g = drand48();
     col.b = drand48();
  }
  ns2vnpoint(xyz, col, N);                     /* Draw the points */

  s2show(1);                                   /* Open the s2plot window */

  return 1;

}

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