update ast 8.6.2

1 files changed, 322 insertions, 0 deletions

diff --git a/ast/zoommap.h b/ast/zoommap.h
new file mode 100644
index 0000000..1f5b06e
--- /dev/null
+++ b/ast/zoommap.h
@@ -0,0 +1,322 @@
+#if !defined( ZOOMMAP_INCLUDED ) /* Include this file only once */
+#define ZOOMMAP_INCLUDED
+/*
+*+
+*  Name:
+*     zoommap.h
+
+*  Type:
+*     C include file.
+
+*  Purpose:
+*     Define the interface to the ZoomMap class.
+
+*  Invocation:
+*     #include "zoommap.h"
+
+*  Description:
+*     This include file defines the interface to the ZoomMap class and
+*     provides the type definitions, function prototypes and macros,
+*     etc.  needed to use this class.
+*
+*     The ZoomMap class implements Mappings which perform a "zoom"
+*     transformation by multiplying all coordinate values by the same
+*     scale factor (the inverse transformation is performed by
+*     dividing by this scale factor).
+
+*  Inheritance:
+*     The ZoomMap class inherits from the Mapping class.
+
+*  Attributes Over-Ridden:
+*     None.
+
+*  New Attributes Defined:
+*     Zoom (double)
+*        The ZoomMap scale factor, by which coordinate values are
+*        multiplied (by the forward transformation) or divided (by the
+*        inverse transformation). This factor is set when a ZoomMap is
+*        created, but may later be modified. It may not be set to
+*        zero. The default value (if cleared) is one.
+*
+*        Note that if the ZoomMap is inverted (by using astInvert or
+*        setting a non-zero value for its Invert attribute), then the
+*        reciprocal of this Zoom value will, in effect, be used.
+
+*  Methods Over-Ridden:
+*     Public:
+*        None.
+*
+*     Protected:
+*        astClearAttrib
+*           Clear an attribute value for a ZoomMap.
+*        astGetAttrib
+*           Get an attribute value for a ZoomMap.
+*        astSetAttrib
+*           Set an attribute value for a ZoomMap.
+*        astTestAttrib
+*           Test if an attribute value has been set for a ZoomMap.
+*        astTransform
+*           Apply a ZoomMap to transform a set of points.
+
+*  New Methods Defined:
+*     Public:
+*        None.
+*
+*     Protected:
+*        astClearZoom
+*           Clear the Zoom attribute value for a ZoomMap.
+*        astGetZoom
+*           Get the Zoom attribute value for a ZoomMap.
+*        astSetZoom
+*           Set the Zoom attribute value for a ZoomMap.
+*        astTestZoom
+*           Test if a Zoom attribute value has been set for a ZoomMap.
+
+*  Other Class Functions:
+*     Public:
+*        astIsAZoomMap
+*           Test class membership.
+*        astZoomMap
+*           Create a ZoomMap.
+*
+*     Protected:
+*        astCheckZoomMap
+*           Validate class membership.
+*        astInitZoomMap
+*           Initialise a ZoomMap.
+*        astInitZoomMapVtab
+*           Initialise the virtual function table for the ZoomMap class.
+*        astLoadZoomMap
+*           Load a ZoomMap.
+
+*  Macros:
+*     None.
+
+*  Type Definitions:
+*     Public:
+*        AstZoomMap
+*           ZoomMap object type.
+*
+*     Protected:
+*        AstZoomMapVtab
+*           ZoomMap virtual function table type.
+
+*  Feature Test Macros:
+*     astCLASS
+*        If the astCLASS macro is undefined, only public symbols are
+*        made available, otherwise protected symbols (for use in other
+*        class implementations) are defined. This macro also affects
+*        the reporting of error context information, which is only
+*        provided for external calls to the AST library.
+
+*  Copyright:
+*     Copyright (C) 1997-2006 Council for the Central Laboratory of the
+*     Research Councils
+
+*  Licence:
+*     This program is free software: you can redistribute it and/or
+*     modify it under the terms of the GNU Lesser General Public
+*     License as published by the Free Software Foundation, either
+*     version 3 of the License, or (at your option) any later
+*     version.
+*     
+*     This program is distributed in the hope that it will be useful,
+*     but WITHOUT ANY WARRANTY; without even the implied warranty of
+*     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*     GNU Lesser General Public License for more details.
+*     
+*     You should have received a copy of the GNU Lesser General
+*     License along with this program.  If not, see
+*     <http://www.gnu.org/licenses/>.
+
+*  Authors:
+*     RFWS: R.F. Warren-Smith (Starlink)
+
+*  History:
+*     30-JAN-1996 (RFWS):
+*        Original version.
+*     18-JUL-1996 (RFWS):
+*        Updated to provide an external interface.
+*     10-SEP-1996 (RFWS):
+*        Added I/O facilities.
+*     8-JAN-2003 (DSB):
+*        Added protected astInitZoomMapVtab method.
+*-
+*/
+
+/* Include files. */
+/* ============== */
+/* Interface definitions. */
+/* ---------------------- */
+#include "mapping.h"             /* Coordinate mappings (parent class) */
+
+#if defined(astCLASS)            /* Protected */
+#include "channel.h"             /* I/O channels */
+#endif
+
+/* C header files. */
+/* --------------- */
+#if defined(astCLASS)            /* Protected */
+#include <stddef.h>
+#endif
+
+/* Macros */
+/* ====== */
+
+/* Define a dummy __attribute__ macro for use on non-GNU compilers. */
+#ifndef __GNUC__
+#  define  __attribute__(x)  /*NOTHING*/
+#endif
+
+/* Type Definitions. */
+/* ================= */
+/* ZoomMap structure. */
+/* ------------------ */
+/* This structure contains all information that is unique to each object in
+   the class (e.g. its instance variables). */
+typedef struct AstZoomMap {
+
+/* Attributes inherited from the parent class. */
+   AstMapping mapping;           /* Parent class structure */
+
+/* Attributes specific to objects in this class. */
+   double zoom;                  /* Zoom factor */
+} AstZoomMap;
+
+/* Virtual function table. */
+/* ----------------------- */
+/* This table contains all information that is the same for all
+   objects in the class (e.g. pointers to its virtual functions). */
+#if defined(astCLASS)            /* Protected */
+typedef struct AstZoomMapVtab {
+
+/* Properties (e.g. methods) inherited from the parent class. */
+   AstMappingVtab mapping_vtab;  /* Parent class virtual function table */
+
+/* A Unique identifier to determine class membership. */
+   AstClassIdentifier id;
+
+/* Properties (e.g. methods) specific to this class. */
+   double (*GetZoom)( AstZoomMap *, int * );
+   int (* TestZoom)( AstZoomMap *, int * );
+   void (* ClearZoom)( AstZoomMap *, int * );
+   void (* SetZoom)( AstZoomMap *, double, int * );
+} AstZoomMapVtab;
+
+
+#if defined(THREAD_SAFE)
+
+/* Define a structure holding all data items that are global within this
+   class. */
+typedef struct AstZoomMapGlobals {
+   AstZoomMapVtab Class_Vtab;
+   int Class_Init;
+   char GetAttrib_Buff[ 101 ];
+} AstZoomMapGlobals;
+
+#endif
+
+#endif
+
+/* Function prototypes. */
+/* ==================== */
+/* Prototypes for standard class functions. */
+/* ---------------------------------------- */
+astPROTO_CHECK(ZoomMap)          /* Check class membership */
+astPROTO_ISA(ZoomMap)            /* Test class membership */
+
+/* Constructor. */
+#if defined(astCLASS)            /* Protected. */
+AstZoomMap *astZoomMap_( int, double, const char *, int *, ...);
+#else
+AstZoomMap *astZoomMapId_( int, double, const char *, ... )__attribute__((format(printf,3,4)));
+#endif
+
+#if defined(astCLASS)            /* Protected */
+
+/* Initialiser. */
+AstZoomMap *astInitZoomMap_( void *, size_t, int, AstZoomMapVtab *,
+                             const char *, int, double, int * );
+
+/* Vtab initialiser. */
+void astInitZoomMapVtab_( AstZoomMapVtab *, const char *, int * );
+
+/* Loader. */
+AstZoomMap *astLoadZoomMap_( void *, size_t, AstZoomMapVtab *,
+                             const char *, AstChannel *, int * );
+
+/* Thread-safe initialiser for all global data used by this module. */
+#if defined(THREAD_SAFE)
+void astInitZoomMapGlobals_( AstZoomMapGlobals * );
+#endif
+
+#endif
+
+/* Prototypes for member functions. */
+/* -------------------------------- */
+# if defined(astCLASS)           /* Protected */
+double astGetZoom_( AstZoomMap *, int * );
+int astTestZoom_( AstZoomMap *, int * );
+void astClearZoom_( AstZoomMap *, int * );
+void astSetZoom_( AstZoomMap *, double, int * );
+#endif
+
+/* Function interfaces. */
+/* ==================== */
+/* These macros are wrap-ups for the functions defined by this class
+   to make them easier to invoke (e.g. to avoid type mis-matches when
+   passing pointers to objects from derived classes). */
+
+/* Interfaces to standard class functions. */
+/* --------------------------------------- */
+/* Some of these functions provide validation, so we cannot use them
+   to validate their own arguments. We must use a cast when passing
+   object pointers (so that they can accept objects from derived
+   classes). */
+
+/* Check class membership. */
+#define astCheckZoomMap(this) astINVOKE_CHECK(ZoomMap,this,0)
+#define astVerifyZoomMap(this) astINVOKE_CHECK(ZoomMap,this,1)
+
+/* Test class membership. */
+#define astIsAZoomMap(this) astINVOKE_ISA(ZoomMap,this)
+
+/* Constructor. */
+#if defined(astCLASS)            /* Protected. */
+#define astZoomMap astINVOKE(F,astZoomMap_)
+#else
+#define astZoomMap astINVOKE(F,astZoomMapId_)
+#endif
+
+#if defined(astCLASS)            /* Protected */
+
+/* Initialiser. */
+#define astInitZoomMap(mem,size,init,vtab,name,ncoord,zoom) \
+astINVOKE(O,astInitZoomMap_(mem,size,init,vtab,name,ncoord,zoom,STATUS_PTR))
+
+/* Vtab Initialiser. */
+#define astInitZoomMapVtab(vtab,name) astINVOKE(V,astInitZoomMapVtab_(vtab,name,STATUS_PTR))
+/* Loader. */
+#define astLoadZoomMap(mem,size,vtab,name,channel) \
+astINVOKE(O,astLoadZoomMap_(mem,size,vtab,name,astCheckChannel(channel),STATUS_PTR))
+#endif
+
+/* Interfaces to public member functions. */
+/* -------------------------------------- */
+/* Here we make use of astCheckZoomMap to validate ZoomMap pointers
+   before use.  This provides a contextual error report if a pointer
+   to the wrong sort of Object is supplied. */
+
+#if defined(astCLASS)            /* Protected */
+#define astClearZoom(this) astINVOKE(V,astClearZoom_(astCheckZoomMap(this),STATUS_PTR))
+#define astGetZoom(this) astINVOKE(V,astGetZoom_(astCheckZoomMap(this),STATUS_PTR))
+#define astSetZoom(this,value) \
+astINVOKE(V,astSetZoom_(astCheckZoomMap(this),value,STATUS_PTR))
+#define astTestZoom(this) astINVOKE(V,astTestZoom_(astCheckZoomMap(this),STATUS_PTR))
+#endif
+#endif
+
+
+
+
+