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HEALPixUtils.h@ 3465

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Last change on this file since 3465 was 2985, checked in by ansari, 19 years ago

1/ Suite codage HEALPix-NEST , test avec transforme Ylm OK
2/ Petites modifs et corrections diverses (ajout SizeIndex2Resol() par exemple)

Reza 21 Juin 2006

File size: 999 bytes

Line
1	#ifndef HEALPixUtils_SEEN
2	#define HEALPixUtils_SEEN
3	#include "machdefs.h"
4	#include "ndatablock.h"
5
6	// utilitaires de pixelisation HEALPix
7
8
9	namespace SOPHYA {
10
11	// Utility class to compute index to/from angle conversion in HEALPix
12	// spherical map pixelisation
13
14	class HEALPix {
15	public :
16	static int_4 nest2ring(int_4 nside,int_4 ipnest) ;
17	static int_4 ring2nest(int_4 nside,int_4 ipring) ;
18
19	static int_4 ang2pix_ring(int_4 nside,double theta,double phi) ;
20	static int_4 ang2pix_nest(int_4 nside,double theta,double phi) ;
21	static void pix2ang_ring(int_4 nside,int_4 ipix,double& theta,double& phi) ;
22	static void pix2ang_nest(int_4 nside,int_4 ipix,double& theta,double& phi) ;
23
24	static int_4 ResolToSizeIndex(double res);
25	static inline int_4 ResolToNSide(double res)
26	{ return ResolToSizeIndex(res); }
27	static double SizeIndexToResol(int_4 m);
28	static inline double NSideToResol(int_4 m)
29	{ return SizeIndexToResol(m); }
30	};
31
32
33
34	} // Fin du namespace
35
36	#endif

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