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// Copyright (C) 1999-2017
// Smithsonian Astrophysical Observatory, Cambridge, MA, USA
// For conditions of distribution and use, see copyright notice in "copyright"
#include "fitsimage.h"
// Map Point
Vector FitsImage::mapFromRef(const Vector& vv, Coord::CoordSystem out,
Coord::SkyFrame sky)
{
switch (out) {
case Coord::IMAGE:
return vv * refToImage;
case Coord::PHYSICAL:
return vv * refToPhysical;
case Coord::AMPLIFIER:
return vv * refToAmplifier;
case Coord::DETECTOR:
return vv * refToDetector;
default:
if (hasWCS(out))
return pix2wcs(vv * refToImage, out, sky);
}
return Vector();
}
void FitsImage::mapFromRef(const Vector& vv, Coord::CoordSystem out,
Coord::SkyFrame sky, Coord::SkyFormat format,
char* buf)
{
if (hasWCS(out)) {
pix2wcs(vv * refToImage, out, sky, format, buf);
return;
}
strcpy(buf,"");
}
Vector FitsImage::mapToRef(const Vector& vv, Coord::CoordSystem in,
Coord::SkyFrame sky)
{
switch (in) {
case Coord::IMAGE:
return vv * imageToRef;
case Coord::PHYSICAL:
return vv * physicalToRef;
case Coord::AMPLIFIER:
return vv * amplifierToRef;
case Coord::DETECTOR:
return vv * detectorToRef;
default:
if (hasWCS(in))
return wcs2pix(vv, in, sky) * imageToRef;
}
// special case for parsing regions files
maperr =1;
return Vector();
}
#ifdef NEWWCS
Vector3d FitsImage::mapFromRef(const Vector3d& vv, Coord::CoordSystem out,
Coord::SkyFrame sky)
{
switch (out) {
case Coord::IMAGE:
case Coord::PHYSICAL:
case Coord::AMPLIFIER:
case Coord::DETECTOR:
return vv * refToImage3d;
default:
if (hasWCS(out))
return pix2wcs(vv * refToImage3d, out, sky);
}
return Vector3d();
}
Vector3d FitsImage::mapToRef(const Vector3d& vv, Coord::CoordSystem in,
Coord::SkyFrame sky)
{
switch (in) {
case Coord::IMAGE:
case Coord::PHYSICAL:
case Coord::AMPLIFIER:
case Coord::DETECTOR:
return vv * imageToRef3d;
default:
if (hasWCS(in))
return wcs2pix(vv, in, sky) * imageToRef3d;
}
return Vector3d();
}
#endif
void FitsImage::listFromRef(ostream& str, const Vector& vv,
Coord::CoordSystem sys, Coord::SkyFrame sky,
Coord::SkyFormat format)
{
switch (sys) {
case Coord::IMAGE:
case Coord::PHYSICAL:
case Coord::DETECTOR:
case Coord::AMPLIFIER:
str << setprecision(8) << mapFromRef(vv, sys);
break;
default:
if (hasWCS(sys)) {
if (hasWCSCel(sys)) {
switch (format) {
case Coord::DEGREES:
str << setprecision(10) << mapFromRef(vv, sys, sky);
break;
case Coord::SEXAGESIMAL:
{
char buf[64];
buf[0] = '\0';
mapFromRef(vv, sys, sky, format, buf);
// grap only the first two items
char* ptr = buf;
while (*ptr)
ptr++;
while (*ptr != ' ' && ptr >= buf)
ptr--;
*ptr = '\0';
str << buf;
}
break;
}
}
else
str << setprecision(8) << mapFromRef(vv, sys);
}
else
str << "0 0";
}
}
// Map Length
#ifndef NEWWCS
double FitsImage::mapLenFromRef(double dd, Coord::CoordSystem sys,
Coord::DistFormat dist)
{
Vector rr = mapLenFromRef(Vector(dd,0),sys,dist);
return rr[0];
}
Vector FitsImage::mapLenFromRef(const Vector& vv, Coord::CoordSystem sys,
Coord::DistFormat dist)
{
// really from image coords
switch (sys) {
case Coord::IMAGE:
return mapLen(vv,refToImage);
case Coord::PHYSICAL:
return mapLen(vv,refToPhysical);
case Coord::AMPLIFIER:
return mapLen(vv,refToPhysical * physicalToAmplifier);
case Coord::DETECTOR:
return mapLen(vv,refToPhysical * physicalToDetector);
default:
if (hasWCS(sys)) {
Vector cd = getWCScdelt(sys);
Vector in = mapLen(vv,refToImage);
Vector out = Vector(in[0]*cd[0], in[1]*cd[1]).abs();
if (hasWCSCel(sys)) {
switch (dist) {
case Coord::DEGREE:
break;
case Coord::ARCMIN:
out *= 60;
break;
case Coord::ARCSEC:
out *=60*60;
break;
}
}
return out;
}
}
return Vector();
}
#else
double FitsImage::mapLenFromRef(double dd, Coord::CoordSystem sys,
Coord::DistFormat dist)
{
// really from image coords
switch (sys) {
case Coord::IMAGE:
return dd*refToImage[1].length();
case Coord::PHYSICAL:
return dd*refToPhysical[1].length();
case Coord::AMPLIFIER:
return dd*(refToPhysical * physicalToAmplifier)[1].length();
case Coord::DETECTOR:
return dd*(refToPhysical * physicalToDetector)[1].length();
default:
{
astClearStatus; // just to make sure
if (!hasWCS(sys))
return 0;
setWCSSystem(sys);
setWCSSkyFrame(Coord::FK5);
Vector in[2];
Vector out[2];
in[0] = center();
in[1] = center()+Vector(0,dd);
wcsTran(2, in, 1, out);
double rr = wcsDistance(out[0], out[1]);
if (wcsIsASkyFrame()) {
rr = radToDeg(rr);
switch (dist) {
case Coord::DEGREE:
break;
case Coord::ARCMIN:
rr *= 60.;
break;
case Coord::ARCSEC:
rr *= 60.*60.;
break;
}
}
return rr;
}
}
return 0;
}
Vector FitsImage::mapLenFromRef(const Vector& vv, Coord::CoordSystem sys,
Coord::DistFormat dist)
{
double rx = mapLenFromRef(((Vector)vv)[0],sys,dist);
double ry = mapLenFromRef(((Vector)vv)[1],sys,dist);
return Vector(rx,ry);
}
#endif
#ifndef NEWWCS
double FitsImage::mapLenToRef(double dd, Coord::CoordSystem sys,
Coord::DistFormat dist)
{
Vector rr = mapLenToRef(Vector(dd,0), sys, dist);
return rr[0];
}
Vector FitsImage::mapLenToRef(const Vector& vv, Coord::CoordSystem sys,
Coord::DistFormat dist)
{
switch (sys) {
case Coord::IMAGE:
return mapLen(vv,imageToRef);
case Coord::PHYSICAL:
return mapLen(vv,physicalToRef);
case Coord::AMPLIFIER:
return mapLen(vv,amplifierToPhysical * physicalToRef);
case Coord::DETECTOR:
return mapLen(vv,detectorToPhysical * physicalToRef);
default:
if (hasWCS(sys)) {
Vector cd = getWCScdelt(sys);
Vector in = mapLen(vv,refToImage);
Vector out = Vector(in[0]/cd[0], in[1]/cd[1]).abs();
if (hasWCSCel(sys)) {
switch (dist) {
case Coord::DEGREE:
break;
case Coord::ARCMIN:
out /= 60;
break;
case Coord::ARCSEC:
out /= 60*60;
break;
}
}
return out;
}
}
return Vector();
}
#else
double FitsImage::mapLenToRef(double dd, Coord::CoordSystem sys,
Coord::DistFormat dist)
{
switch (sys) {
case Coord::IMAGE:
return dd*imageToRef[1].length();
case Coord::PHYSICAL:
return dd*physicalToRef[1].length();
case Coord::AMPLIFIER:
return dd*(amplifierToPhysical * physicalToRef)[1].length();
case Coord::DETECTOR:
return dd*(detectorToPhysical * physicalToRef)[1].length();
default:
{
if (!hasWCS(sys))
return 0;
astClearStatus; // just to make sure
setWCSSystem(sys);
double rdd = dd;
if (wcsIsASkyFrame()) {
rdd = degToRad(dd);
switch (dist) {
case Coord::DEGREE:
break;
case Coord::ARCMIN:
rdd /= 60.;
break;
case Coord::ARCSEC:
rdd /= 60.*60.;
break;
}
}
Vector cc = center();
Vector wcc = wcsTran(cc,1);
Vector wpp = wcc+Vector(0,rdd);
Vector pp = wcsTran(wpp,0);
astInvert(ast_);
double rr = wcsDistance(cc, pp);
astInvert(ast_);
return rr;
}
}
return 0;
}
Vector FitsImage::mapLenToRef(const Vector& vv, Coord::CoordSystem sys,
Coord::DistFormat dist)
{
double rx = mapLenToRef(((Vector)vv)[0],sys,dist);
double ry = mapLenToRef(((Vector)vv)[1],sys,dist);
return Vector(rx,ry);
}
#endif
void FitsImage::listLenFromRef(ostream& str, double dd,
Coord::CoordSystem sys, Coord::DistFormat dist)
{
double out = mapLenFromRef(dd, sys, dist);
switch (sys) {
case Coord::IMAGE:
case Coord::PHYSICAL:
case Coord::DETECTOR:
case Coord::AMPLIFIER:
str << setprecision(8) << out;
break;
default:
if (hasWCS(sys)) {
if (hasWCSCel(sys)) {
str << fixed;
switch (dist) {
case Coord::DEGREE:
str << setprecision(7);
break;
case Coord::ARCMIN:
str << setprecision(5);
break;
case Coord::ARCSEC:
str << setprecision(3);
break;
}
str << out;
}
else
str << setprecision(8) << out;
}
else
str << "0";
}
}
void FitsImage::listLenFromRef(ostream& str, const Vector& vv,
Coord::CoordSystem sys, Coord::DistFormat dist)
{
Vector out = mapLenFromRef(vv, sys, dist);
switch (sys) {
case Coord::IMAGE:
case Coord::PHYSICAL:
case Coord::DETECTOR:
case Coord::AMPLIFIER:
str << setprecision(8) << out;
break;
default:
if (hasWCS(sys)) {
if (hasWCSCel(sys)) {
str << fixed;
switch (dist) {
case Coord::DEGREE:
str << setprecision(7);
break;
case Coord::ARCMIN:
str << setprecision(5);
break;
case Coord::ARCSEC:
str << setprecision(3);
break;
}
str << out;
}
else
str << setprecision(8) << out;
}
else
str << "0 0";
}
}
// Map Distance
double FitsImage::mapDistFromRef(const Vector& vv1, const Vector& vv2,
Coord::CoordSystem sys, Coord::DistFormat dist)
{
switch (sys) {
case Coord::IMAGE:
{
Vector v1 = vv1 * refToImage;
Vector v2 = vv2 * refToImage;
return (v2-v1).length();
}
case Coord::PHYSICAL:
{
Vector v1 = vv1 * refToPhysical;
Vector v2 = vv2 * refToPhysical;
return (v2-v1).length();
}
case Coord::AMPLIFIER:
{
Vector v1 = vv1 * refToPhysical * physicalToAmplifier;
Vector v2 = vv2 * refToPhysical * physicalToAmplifier;
return (v2-v1).length();
}
case Coord::DETECTOR:
{
Vector v1 = vv1 * refToPhysical * physicalToDetector;
Vector v2 = vv2 * refToPhysical * physicalToDetector;
return (v2-v1).length();
}
default:
if (hasWCS(sys)) {
Vector v1 = pix2wcs(vv1 * refToImage, sys, Coord::FK5);
Vector v2 = pix2wcs(vv2 * refToImage, sys, Coord::FK5);
if (hasWCSCel(sys)) {
switch (dist) {
case Coord::DEGREE:
return getWCSDist(v1,v2,sys);
case Coord::ARCMIN:
return getWCSDist(v1,v2,sys)*60;
case Coord::ARCSEC:
return getWCSDist(v1,v2,sys)*60*60;
}
}
else
return getWCSDist(v1,v2,sys);
}
}
return 0;
}
void FitsImage::listDistFromRef(ostream& str,
const Vector& vv1, const Vector& vv2,
Coord::CoordSystem sys, Coord::DistFormat dist)
{
double out = mapDistFromRef(vv1, vv2, sys, dist);
switch (sys) {
case Coord::IMAGE:
case Coord::PHYSICAL:
case Coord::DETECTOR:
case Coord::AMPLIFIER:
str << setprecision(8) << out;
break;
default:
if (hasWCS(sys)) {
if (hasWCSCel(sys)) {
str << fixed;
switch (dist) {
case Coord::DEGREE:
str << setprecision(7);
break;
case Coord::ARCMIN:
str << setprecision(5);
break;
case Coord::ARCSEC:
str << setprecision(3);
break;
}
str << out;
}
else
str << setprecision(8) << out;
}
else
str << "0 0";
}
}
// 3D
#ifndef NEWWCS
double FitsImage::mapFromImage3d(double dd, Coord::CoordSystem sys)
{
if (sys >= Coord::WCS)
return pix2wcsx(dd,sys);
else
return dd;
}
double FitsImage::mapToImage3d(double dd, Coord::CoordSystem sys)
{
if (sys >= Coord::WCS)
return wcs2pixx(dd,sys);
else
return dd;
}
#else
double FitsImage::mapFromImage3d(double dd, Coord::CoordSystem sys)
{
if (hasWCS(sys)) {
Vector3d cc(center(),dd);
Vector3d rr = pix2wcs(cc,sys,Coord::FK5);
return rr[2];
}
else
return dd;
}
double FitsImage::mapToImage3d(double dd, Coord::CoordSystem sys)
{
if (hasWCS(sys)) {
Vector3d cc(center(),1);
Vector3d wcc = pix2wcs(cc,sys,Coord::FK5);
Vector3d rr = wcs2pix(Vector3d(wcc[0],wcc[1],dd),sys,Coord::FK5);
return rr[2];
}
else
return dd;
}
#endif
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