Index: trunk/psModules/src/astrom/pmAstrometryWCS.h
===================================================================
--- trunk/psModules/src/astrom/pmAstrometryWCS.h	(revision 10603)
+++ trunk/psModules/src/astrom/pmAstrometryWCS.h	(revision 10612)
@@ -7,6 +7,6 @@
 *  @author EAM, IfA
 *
-*  @version $Revision: 1.2 $ $Name: not supported by cvs2svn $
-*  @date $Date: 2006-12-10 02:06:47 $
+*  @version $Revision: 1.3 $ $Name: not supported by cvs2svn $
+*  @date $Date: 2006-12-10 18:30:07 $
 *
 *  Copyright 2006 Institute for Astronomy, University of Hawaii
@@ -15,4 +15,22 @@
 #ifndef PM_ASTROMETRY_WCS_H
 #define PM_ASTROMETRY_WCS_H
+
+#define PM_ASTROM_WCS_TYPE_SIZE 80
+typedef struct
+{
+    char ctype1[PM_ASTROM_WCS_TYPE_SIZE];
+    char ctype2[PM_ASTROM_WCS_TYPE_SIZE];
+    double crval1, crval2;
+    double crpix1, crpix2;
+    double cdelt1, cdelt2;
+    psProjection *toSky;
+    psPlaneTransform *trans;
+}
+pmAstromWCS;
+
+pmAstromWCS *pmAstromWCSAlloc (int nXorder, int nYorder);
+bool pmAstromWCStoSky (psSphere *sky, pmAstromWCS *wcs, psPlane *chip);
+bool pmAstromWCStoChip (psPlane *chip, pmAstromWCS *wcs, psSphere *sky);
+pmAstromWCS *pmAstromWCSfromHeader (psMetadata *header);
 
 bool pmAstromReadWCS (pmFPA *fpa, pmChip *chip, psMetadata *header, double plateScale, bool isMosaic);
@@ -25,6 +43,11 @@
 bool psPlaneDistortIsIdentity (psPlaneDistort *distort);
 
-# define PS_DEG_RAD 57.295779513082322
-# define PS_RAD_DEG  0.017453292519943
+# define PM_DEG_RAD 57.295779513082322
+# define PM_RAD_DEG  0.017453292519943
 
 #endif // PM_ASTROMETRY_WCS_H
+
+/*
+ * the wcs->trans component defines a polynomial which converts (x-crpix1),(y-crpix2) to
+ * L,M in degrees
+ */