Index: trunk/psLib/src/astronomy/psAstrometry.c
===================================================================
--- trunk/psLib/src/astronomy/psAstrometry.c	(revision 2222)
+++ trunk/psLib/src/astronomy/psAstrometry.c	(revision 2273)
@@ -8,6 +8,6 @@
  *  @author George Gusciora, MHPCC
  *
- *  @version $Revision: 1.49 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2004-10-27 23:49:00 $
+ *  @version $Revision: 1.50 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2004-11-04 01:04:57 $
  *
  *  Copyright 2004 Maui High Performance Computing Center, University of Hawaii
@@ -25,4 +25,6 @@
 #include "psError.h"
 #include "psConstants.h"
+#include "psAstronomyErrors.h"
+
 #include "slalib.h"
 
@@ -868,5 +870,7 @@
     // generate an error if cell->toTP is not linear.
     if (0 == isProjectionLinear(cell->toTP)) {
-        psError(__func__, "the cell->toTP transfrom is not linear.\n");
+        psError(PS_ERR_BAD_PARAMETER_TYPE, true,
+                PS_ERRORTEXT_psAstrometry_NONLINEAR_TRANSFORM,
+                "cell to tangent plane");
     }