Misc changes
Cees Bassa
parent
c772f8da0d
commit
51a09bd162
96
rfedit.c
96
rfedit.c
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@ -181,56 +181,80 @@ void write_spectrogram(struct spectrogram s,char *prefix)
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return;
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}
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void usage(void)
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{
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printf("rfplot: plot RF observations\n\n");
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printf("-p <path> Path to file prefix /a/b/c_??????.bin\n");
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printf("-o <file> Output file name [test_000000.bin]\n");
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printf("-s <start> Number of starting subintegration [0]\n");
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printf("-l <length> Number of subintegrations to plot [3600]\n");
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printf("-b <nbin> Number of subintegrations to bin [1]\n");
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printf("-f <freq> Frequency to zoom into (Hz)\n");
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printf("-w <bw> Bandwidth to zoom into (Hz)\n");
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printf("-h This help\n");
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return;
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}
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int main(int argc,char *argv[])
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{
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struct spectrogram s;
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char prefix[128],outfile[128];
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char path[128],outfile[128]="test";
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int arg=0,nsub=3600,nbin=1,isub=0;
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double f0=0.0,df0=0.0;
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// Read arguments
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while ((arg=getopt(argc,argv,"i:o:f:w:s:l:b:z:"))!=-1) {
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switch (arg) {
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case 'i':
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strcpy(prefix,optarg);
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break;
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if (argc>1) {
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while ((arg=getopt(argc,argv,"p:o:f:w:s:l:b:h"))!=-1) {
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switch (arg) {
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case 'p':
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strcpy(path,optarg);
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break;
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case 'o':
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strcpy(outfile,optarg);
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break;
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case 's':
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isub=atoi(optarg);
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break;
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case 'l':
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nsub=atoi(optarg);
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break;
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case 'b':
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nbin=atoi(optarg);
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break;
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case 'f':
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f0=(double) atof(optarg);
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break;
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case 'w':
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df0=(double) atof(optarg);
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break;
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case 'h':
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usage();
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break;
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case 'o':
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strcpy(outfile,optarg);
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break;
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case 's':
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isub=atoi(optarg);
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break;
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case 'l':
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nsub=atoi(optarg);
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break;
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case 'b':
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nbin=atoi(optarg);
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break;
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case 'f':
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f0=(double) atof(optarg);
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break;
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case 'w':
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df0=(double) atof(optarg);
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break;
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default:
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return 0;
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default:
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usage();
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return 0;
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}
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}
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} else {
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usage();
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return 0;
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}
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// Read data
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s=read_spectrogram(prefix,isub,nsub,f0,df0,nbin);
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printf("Read\n");
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s=read_spectrogram(path,isub,nsub,f0,df0,nbin);
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// Write data
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write_spectrogram(s,outfile);
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printf("Written\n");
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// Free
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// free(s.z);
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479
rfplot.c
479
rfplot.c
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@ -17,199 +17,9 @@ struct spectrogram {
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double nfd2mjd(char *date);
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double date2mjd(int year,int month,double day);
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void dec2sex(double x,char *s,int f,int len);
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struct spectrogram read_spectrogram(char *prefix,int isub,int nsub,double f0,double df0,int nbin)
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{
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int i,j,k,l,flag=0,status,msub;
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char filename[128],header[256],nfd[32];
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FILE *file;
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struct spectrogram s;
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float *z;
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int nch,j0,j1;
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double freq,samp_rate;
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float length;
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int nchan;
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// Open first file to get number of channels
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sprintf(filename,"%s_%06d.bin",prefix,isub);
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// Open file
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file=fopen(filename,"r");
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if (file==NULL) {
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printf("%s does not exist\n",filename);
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return s;
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}
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// Read header
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status=fread(header,sizeof(char),256,file);
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status=sscanf(header,"HEADER\nUTC_START %s\nFREQ %lf Hz\nBW %lf Hz\nLENGTH %f s\nNCHAN %d\n",s.nfd0,&s.freq,&s.samp_rate,&length,&nch);
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// Close file
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fclose(file);
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// Compute plotting channel
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if (f0>0.0 && df0>0.0) {
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s.nchan=(int) (df0/s.samp_rate*(float) nch);
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j0=(int) ((f0-0.5*df0-s.freq+0.5*s.samp_rate)*(float) nch/s.samp_rate);
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j1=(int) ((f0+0.5*df0-s.freq+0.5*s.samp_rate)*(float) nch/s.samp_rate);
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if (j0<0 || j1>nch)
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fprintf(stderr,"Requested frequency range out of limits\n");
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} else {
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s.nchan=nch;
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j0=0;
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j1=s.nchan;
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}
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// Number of subints
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s.nsub=nsub/nbin;
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// Allocate
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s.z=(float *) malloc(sizeof(float)*s.nchan*s.nsub);
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z=(float *) malloc(sizeof(float)*nch);
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s.mjd=(double *) malloc(sizeof(double)*s.nsub);
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s.length=(float *) malloc(sizeof(float)*s.nsub);
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// Initialize
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for (j=0;j<s.nchan*s.nsub;j++)
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s.z[j]=0.0;
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for (j=0;j<s.nsub;j++)
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s.mjd[j]=0.0;
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// Loop over files
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for (k=0,i=0,l=0;l<nsub;k++) {
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// Generate filename
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sprintf(filename,"%s_%06d.bin",prefix,k+isub);
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// Open file
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file=fopen(filename,"r");
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if (file==NULL) {
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printf("%s does not exist\n",filename);
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break;
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}
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printf("opened %s\n",filename);
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// Loop over contents of file
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for (;l<nsub;l++) {
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// Read header
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status=fread(header,sizeof(char),256,file);
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if (status==0)
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break;
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status=sscanf(header,"HEADER\nUTC_START %s\nFREQ %lf Hz\nBW %lf Hz\nLENGTH %f s\nNCHAN %d\n",nfd,&freq,&samp_rate,&length,&nchan);
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s.mjd[i]+=nfd2mjd(nfd)+0.5*length/86400.0;
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s.length[i]+=length;
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// Read buffer
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status=fread(z,sizeof(float),nch,file);
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if (status==0)
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break;
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// Copy
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for (j=0;j<s.nchan;j++)
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s.z[i+s.nsub*j]+=z[j+j0];
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// Increment
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if (l%nbin==nbin-1) {
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// Scale
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s.mjd[i]/=(float) nbin;
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for (j=0;j<s.nchan;j++)
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s.z[i+s.nsub*j]/=(float) nbin;
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i++;
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}
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}
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// Close file
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fclose(file);
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}
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// Swap frequency range
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if (f0>0.0 && df0>0.0) {
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s.freq=f0;
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s.samp_rate=df0;
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}
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// Free
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free(z);
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return s;
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}
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void time_axis(double *mjd,int n,float xmin,float xmax,float ymin,float ymax)
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{
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int i,imin,imax;
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double mjdt,mjdmin,mjdmax;
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float dt,t,tmin,tmax;
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int lsec,ssec,sec;
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char stime[16];
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// Find extrema
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for (i=0;i<n;i++) {
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if (i==0) {
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mjdmin=mjd[i];
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mjdmax=mjd[i];
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} else {
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if (mjd[i]>mjdmax) mjdmax=mjd[i];
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}
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}
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dt=(float) 86400*(mjdmax-mjdmin);
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// Choose tickmarks
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if (dt>43000) {
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lsec=10800;
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ssec=3600;
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} else if (dt>21600) {
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lsec=10800;
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ssec=3600;
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} else if (dt>7200) {
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lsec=1800;
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ssec=300;
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} else if (dt>3600) {
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lsec=600;
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ssec=120;
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} else if (dt>900) {
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lsec=300;
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ssec=60;
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} else {
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lsec=60;
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ssec=10;
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}
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// Extrema
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tmin=86400.0*(mjdmin-floor(mjdmin));
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tmax=tmin+dt;
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tmin=lsec*floor(tmin/lsec);
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tmax=lsec*ceil(tmax/lsec);
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// Large tickmarks
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for (t=tmin;t<=tmax;t+=lsec) {
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mjdt=floor(mjdmin)+t/86400.0;
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if (mjdt>=mjdmin && mjdt<mjdmax) {
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for (i=0;i<n-1;i++)
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if (mjdt>=mjd[i] && mjdt<mjd[i+1])
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break;
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sec=(int) floor(fmod(t,86400.0));
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dec2sex(((float) sec+0.1)/3600.0,stime,0,2);
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stime[6]='\0';
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cpgtick(xmin,ymin,xmax,ymin,((float) i-xmin)/(xmax-xmin),0.5,0.5,0.3,0.0,stime);
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}
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}
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// Small tickmarks
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for (t=tmin;t<=tmax;t+=ssec) {
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mjdt=floor(mjdmin)+t/86400.0;
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if (mjdt>=mjdmin && mjdt<mjdmax) {
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for (i=0;i<n-1;i++)
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if (mjdt>=mjd[i] && mjdt<mjd[i+1])
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break;
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sec=(int) floor(t);
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cpgtick(xmin,ymin,xmax,ymin,((float) i-xmin)/(xmax-xmin),0.25,0.25,1.0,1.0,"");
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}
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}
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return;
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}
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struct spectrogram read_spectrogram(char *prefix,int isub,int nsub,double f0,double df0,int nbin);
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void time_axis(double *mjd,int n,float xmin,float xmax,float ymin,float ymax);
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void usage(void);
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int main(int argc,char *argv[])
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{
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@ -228,7 +38,7 @@ int main(int argc,char *argv[])
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float width=500;
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float x,y,x0,y0;
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char c;
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char prefix[128],xlabel[64],ylabel[64];
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char path[128],xlabel[64],ylabel[64];
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int sec,lsec,ssec;
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char stime[16];
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double fmin,fmax,fcen,f;
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@ -237,44 +47,53 @@ int main(int argc,char *argv[])
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double f0=0.0,df0=0.0;
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// Read arguments
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while ((arg=getopt(argc,argv,"i:f:w:s:l:b:z:"))!=-1) {
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switch (arg) {
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case 'i':
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strcpy(prefix,optarg);
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break;
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if (argc>1) {
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while ((arg=getopt(argc,argv,"p:f:w:s:l:b:z:h"))!=-1) {
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switch (arg) {
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case 'p':
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strcpy(path,optarg);
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break;
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case 's':
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isub=atoi(optarg);
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break;
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case 'l':
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nsub=atoi(optarg);
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break;
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case 'b':
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nbin=atoi(optarg);
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break;
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case 'f':
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f0=(double) atof(optarg);
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break;
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case 'w':
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df0=(double) atof(optarg);
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break;
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case 'z':
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zmax=atof(optarg);
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break;
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case 's':
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isub=atoi(optarg);
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break;
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case 'h':
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usage();
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case 'l':
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nsub=atoi(optarg);
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break;
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case 'b':
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nbin=atoi(optarg);
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break;
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case 'f':
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f0=(double) atof(optarg);
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break;
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case 'w':
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df0=(double) atof(optarg);
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break;
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case 'z':
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zmax=atof(optarg);
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break;
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default:
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return 0;
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default:
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usage();
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return 0;
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}
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}
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} else {
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usage();
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return 0;
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}
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// Read data
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s=read_spectrogram(prefix,isub,nsub,f0,df0,nbin);
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s=read_spectrogram(path,isub,nsub,f0,df0,nbin);
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printf("Read spectrogram\n%d channels, %d subints\nFrequency: %g MHz\nBandwidth: %g MHz\n",s.nchan,s.nsub,s.freq*1e-6,s.samp_rate*1e-6);
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@ -639,3 +458,211 @@ void dec2sex(double x,char *s,int f,int len)
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return;
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}
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struct spectrogram read_spectrogram(char *prefix,int isub,int nsub,double f0,double df0,int nbin)
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{
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int i,j,k,l,flag=0,status,msub;
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char filename[128],header[256],nfd[32];
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FILE *file;
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struct spectrogram s;
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float *z;
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int nch,j0,j1;
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double freq,samp_rate;
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float length;
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int nchan;
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// Open first file to get number of channels
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sprintf(filename,"%s_%06d.bin",prefix,isub);
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// Open file
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file=fopen(filename,"r");
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if (file==NULL) {
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printf("%s does not exist\n",filename);
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return s;
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}
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// Read header
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status=fread(header,sizeof(char),256,file);
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status=sscanf(header,"HEADER\nUTC_START %s\nFREQ %lf Hz\nBW %lf Hz\nLENGTH %f s\nNCHAN %d\n",s.nfd0,&s.freq,&s.samp_rate,&length,&nch);
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// Close file
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fclose(file);
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// Compute plotting channel
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if (f0>0.0 && df0>0.0) {
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s.nchan=(int) (df0/s.samp_rate*(float) nch);
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j0=(int) ((f0-0.5*df0-s.freq+0.5*s.samp_rate)*(float) nch/s.samp_rate);
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j1=(int) ((f0+0.5*df0-s.freq+0.5*s.samp_rate)*(float) nch/s.samp_rate);
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if (j0<0 || j1>nch)
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fprintf(stderr,"Requested frequency range out of limits\n");
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} else {
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s.nchan=nch;
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j0=0;
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j1=s.nchan;
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}
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// Number of subints
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s.nsub=nsub/nbin;
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// Allocate
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s.z=(float *) malloc(sizeof(float)*s.nchan*s.nsub);
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z=(float *) malloc(sizeof(float)*nch);
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s.mjd=(double *) malloc(sizeof(double)*s.nsub);
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s.length=(float *) malloc(sizeof(float)*s.nsub);
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// Initialize
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for (j=0;j<s.nchan*s.nsub;j++)
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s.z[j]=0.0;
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for (j=0;j<s.nsub;j++)
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s.mjd[j]=0.0;
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// Loop over files
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for (k=0,i=0,l=0;l<nsub;k++) {
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// Generate filename
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sprintf(filename,"%s_%06d.bin",prefix,k+isub);
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// Open file
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file=fopen(filename,"r");
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if (file==NULL) {
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printf("%s does not exist\n",filename);
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break;
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}
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printf("opened %s\n",filename);
|
||||
|
||||
// Loop over contents of file
|
||||
for (;l<nsub;l++) {
|
||||
// Read header
|
||||
status=fread(header,sizeof(char),256,file);
|
||||
if (status==0)
|
||||
break;
|
||||
status=sscanf(header,"HEADER\nUTC_START %s\nFREQ %lf Hz\nBW %lf Hz\nLENGTH %f s\nNCHAN %d\n",nfd,&freq,&samp_rate,&length,&nchan);
|
||||
s.mjd[i]+=nfd2mjd(nfd)+0.5*length/86400.0;
|
||||
s.length[i]+=length;
|
||||
|
||||
// Read buffer
|
||||
status=fread(z,sizeof(float),nch,file);
|
||||
if (status==0)
|
||||
break;
|
||||
|
||||
// Copy
|
||||
for (j=0;j<s.nchan;j++)
|
||||
s.z[i+s.nsub*j]+=z[j+j0];
|
||||
|
||||
// Increment
|
||||
if (l%nbin==nbin-1) {
|
||||
// Scale
|
||||
s.mjd[i]/=(float) nbin;
|
||||
for (j=0;j<s.nchan;j++)
|
||||
s.z[i+s.nsub*j]/=(float) nbin;
|
||||
|
||||
i++;
|
||||
}
|
||||
}
|
||||
|
||||
// Close file
|
||||
fclose(file);
|
||||
}
|
||||
|
||||
// Swap frequency range
|
||||
if (f0>0.0 && df0>0.0) {
|
||||
s.freq=f0;
|
||||
s.samp_rate=df0;
|
||||
}
|
||||
|
||||
// Free
|
||||
free(z);
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
void time_axis(double *mjd,int n,float xmin,float xmax,float ymin,float ymax)
|
||||
{
|
||||
int i,imin,imax;
|
||||
double mjdt,mjdmin,mjdmax;
|
||||
float dt,t,tmin,tmax;
|
||||
int lsec,ssec,sec;
|
||||
char stime[16];
|
||||
|
||||
// Find extrema
|
||||
for (i=0;i<n;i++) {
|
||||
if (i==0) {
|
||||
mjdmin=mjd[i];
|
||||
mjdmax=mjd[i];
|
||||
} else {
|
||||
if (mjd[i]>mjdmax) mjdmax=mjd[i];
|
||||
}
|
||||
}
|
||||
dt=(float) 86400*(mjdmax-mjdmin);
|
||||
|
||||
// Choose tickmarks
|
||||
if (dt>43000) {
|
||||
lsec=10800;
|
||||
ssec=3600;
|
||||
} else if (dt>21600) {
|
||||
lsec=10800;
|
||||
ssec=3600;
|
||||
} else if (dt>7200) {
|
||||
lsec=1800;
|
||||
ssec=300;
|
||||
} else if (dt>3600) {
|
||||
lsec=600;
|
||||
ssec=120;
|
||||
} else if (dt>900) {
|
||||
lsec=300;
|
||||
ssec=60;
|
||||
} else {
|
||||
lsec=60;
|
||||
ssec=10;
|
||||
}
|
||||
|
||||
// Extrema
|
||||
tmin=86400.0*(mjdmin-floor(mjdmin));
|
||||
tmax=tmin+dt;
|
||||
tmin=lsec*floor(tmin/lsec);
|
||||
tmax=lsec*ceil(tmax/lsec);
|
||||
|
||||
// Large tickmarks
|
||||
for (t=tmin;t<=tmax;t+=lsec) {
|
||||
mjdt=floor(mjdmin)+t/86400.0;
|
||||
if (mjdt>=mjdmin && mjdt<mjdmax) {
|
||||
for (i=0;i<n-1;i++)
|
||||
if (mjdt>=mjd[i] && mjdt<mjd[i+1])
|
||||
break;
|
||||
sec=(int) floor(fmod(t,86400.0));
|
||||
dec2sex(((float) sec+0.1)/3600.0,stime,0,2);
|
||||
stime[6]='\0';
|
||||
cpgtick(xmin,ymin,xmax,ymin,((float) i-xmin)/(xmax-xmin),0.5,0.5,0.3,0.0,stime);
|
||||
}
|
||||
}
|
||||
|
||||
// Small tickmarks
|
||||
for (t=tmin;t<=tmax;t+=ssec) {
|
||||
mjdt=floor(mjdmin)+t/86400.0;
|
||||
if (mjdt>=mjdmin && mjdt<mjdmax) {
|
||||
for (i=0;i<n-1;i++)
|
||||
if (mjdt>=mjd[i] && mjdt<mjd[i+1])
|
||||
break;
|
||||
sec=(int) floor(t);
|
||||
cpgtick(xmin,ymin,xmax,ymin,((float) i-xmin)/(xmax-xmin),0.25,0.25,1.0,1.0,"");
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
void usage(void)
|
||||
{
|
||||
printf("rfplot: plot RF observations\n\n");
|
||||
printf("-p <path> Input path to file /a/b/c_??????.bin\n");
|
||||
printf("-s <start> Number of starting subintegration [0]\n");
|
||||
printf("-l <length> Number of subintegrations to plot [3600]\n");
|
||||
printf("-b <nbin> Number of subintegrations to bin [1]\n");
|
||||
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("-h This help\n");
|
||||
|
||||
return;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue