Function:ss2qar
From S2PLOT
ss2qar
Query the aspect ratio.
Prototype
float ss2qar(void);
Description
Query the aspect ratio: returned value is ratio of width to height, ie. it is normally > 1.
See Also
| s2open | Open the S2PLOT device. |
| s2opend | Open the S2PLOT device (device string version). |
| s2opendo | Open the S2PLOT device (device string version, ignoring command line arguments). |
| s2ldev | List the available S2PLOT devices on stdout. |
Code Example
#include <stdio.h>
#include <stdlib.h>
#include "s2plot.h"
void cb(double *t, int *kc)
{
float qar = ss2qar(); /* Query the aspect ratio */
char string[32];
sprintf(string,"aspect ratio = %.2f",qar); /* Write to string */
s2textxy(0,0,0,string); /* Display text */
}
int main(int argc, char *argv[])
{
fprintf(stderr,"Resize window to see change in aspect ratio");
s2opend("/s2mono", argc, argv); /* Open in mono mode */
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 callback */
s2show(1); /* Open the s2plot window */
return 1;
}
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