Function:ss2qar
From S2PLOT
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| == See Also == | == See Also == | ||
| <table> | <table> | ||
| + | <tr><td>[[Function:s2open | s2open]]</td><td>Open the S2PLOT device. </td></tr> | ||
| + | <tr><td>[[Function:s2opend | s2opend]]</td><td>Open the S2PLOT device (device string version). </td></tr> | ||
| + | <tr><td>[[Function:s2opendo | s2opendo]]</td><td>Open the S2PLOT device (device string version, ignoring command line arguments). </td></tr> | ||
| + | <tr><td>[[Function:s2ldev | s2ldev]]</td><td>List the available S2PLOT devices on stdout. </td></tr> | ||
| </table> | </table> | ||
Current revision
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;
}
Back to S2PLOT function list.
