spacecruft
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strf
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Added offset

pull/15/head
Cees Bassa 2019-04-13 17:01:03 +02:00
parent d3c107f1e8
commit 290a039b19
1 changed files with 7 additions and 4 deletions
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11
rfpng.c
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@ -153,7 +153,7 @@ int main(int argc,char *argv[])
}
// Read data
s=read_spectrogram(path,isub,nsub,f0,df0,nbin,0.0);
s=read_spectrogram(path,isub,nsub,f0,df0,nbin,foff);
if (s.mjd[0]<54000)
return 0;
@ -224,14 +224,16 @@ int main(int argc,char *argv[])
// Plot traces
cpgswin(xmin,xmax,fmin,fmax);
cpgsch(0.8);
plot_traces(t,nsat,foff);
plot_traces(t,nsat,-foff);
plot_traces(t,nsat,0.0);
cpgsch(0.8);
// Human readable frequency axis
fcen=0.5*(fmax+fmin);
fcen=floor(1000*fcen)/1000.0;
sprintf(ylabel,"Frequency - %.3f MHz",fcen);
if (fabs(foff)<1e-3)
sprintf(ylabel,"Frequency - %.3f MHz",fcen);
else
sprintf(ylabel,"Frequency - %.3f MHz (%.3f Hz)",fcen, foff);
fmin-=fcen;
fmax-=fcen;
cpgswin(xmin,xmax,fmin,fmax);
@ -374,6 +376,7 @@ void usage(void)
printf("-z <zmax> Image scaling upper limit [8.0]\n");
printf("-f <freq> Frequency to zoom into (Hz)\n");
printf("-w <bw> Bandwidth to zoom into (Hz)\n");
printf("-O <offset> Frequency offset to apply (Hz) [0]\n");
printf("-h This help\n");
return;