Function:ss2qas
From S2PLOT
(Difference between revisions)
| Revision as of 02:38, 23 November 2007 S2plot admin (Talk | contribs) ← Previous diff |
Current revision S2plot admin (Talk | contribs) |
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| Line 1: | Line 1: | ||
| - | ==ss2qasi== | + | ==ss2qas== |
| Query the autospin state. | Query the autospin state. | ||
| Line 20: | Line 20: | ||
| #include <stdio.h> | #include <stdio.h> | ||
| #include <stdlib.h> | #include <stdlib.h> | ||
| + | #include <time.h> | ||
| #include "s2plot.h" | #include "s2plot.h" | ||
| Line 35: | Line 36: | ||
| char string[32]; | char string[32]; | ||
| - | if (qas == 0) | + | if (qas == 0) |
| sprintf(string,"Not spinning"); /* Write to string */ | sprintf(string,"Not spinning"); /* Write to string */ | ||
| else | else | ||
| Line 49: | Line 50: | ||
| { | { | ||
| - | fprintf(stderr,"Press <spacebar> to randomly change autospin state \n"); | + | fprintf(stderr,"Press <spacebar> to randomly change autospin state \n"); |
| + | srand48((long)time(NULL)); /* Seed random numbers */ | ||
| s2opend("/s2mono",argc, argv); /* Open the display: mono */ | s2opend("/s2mono",argc, argv); /* Open the display: mono */ | ||
| s2swin(-1.,1., -1.,1., -1.,1.); /* Set the window coordinates */ | s2swin(-1.,1., -1.,1., -1.,1.); /* Set the window coordinates */ | ||
| Line 55: | Line 57: | ||
| cs2scb(cb); /* Install dynamic callback */ | cs2scb(cb); /* Install dynamic callback */ | ||
| s2show(1); /* Open the s2plot window */ | s2show(1); /* Open the s2plot window */ | ||
| - | + | ||
| return 1; | return 1; | ||
| } | } | ||
| + | |||
| </pre></code> | </pre></code> | ||
| [[S2PLOT:Function List | Back]] to S2PLOT function list. | [[S2PLOT:Function List | Back]] to S2PLOT function list. | ||
| __NOTOC__ | __NOTOC__ | ||
| __NOEDITSECTION__ | __NOEDITSECTION__ | ||
Current revision
ss2qas
Query the autospin state.
Prototype
int ss2qas(void);
Description
Query the autospin state.
See Also
| ss2sas | Start/Stop the camera rotation.. |
Code Example
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "s2plot.h"
void cb(double *t, int *kc)
{
static int lkc = 0; /* Count of key presses */
ss2sss(50.0); /* Fast spinning! */
if (lkc != *kc) { /* Space bar pressed? */
if (drand48() > 0.5) ss2sas(1); /* Random auto spin state */
else ss2sas(0);
}
float qas = ss2qas(); /* Query autospin state */
char string[32];
if (qas == 0)
sprintf(string,"Not spinning"); /* Write to string */
else
sprintf(string,"Whee...."); /* Write to string */
s2textxy(0,0,0,string); /* Display text */
lkc = *kc; /* Update count */
}
int main(int argc, char *argv[])
{
fprintf(stderr,"Press <spacebar> to randomly change autospin state \n");
srand48((long)time(NULL)); /* Seed random numbers */
s2opend("/s2mono",argc, argv); /* Open the display: mono */
s2swin(-1.,1., -1.,1., -1.,1.); /* Set the window coordinates */
cs2scb(cb); /* Install dynamic callback */
s2show(1); /* Open the s2plot window */
return 1;
}
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