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author | William Joye <wjoye@cfa.harvard.edu> | 2016-11-02 19:16:17 (GMT) |
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committer | William Joye <wjoye@cfa.harvard.edu> | 2016-11-02 19:16:17 (GMT) |
commit | 293057bdd882685f8ddad66bf77196a5853b08da (patch) | |
tree | 22c02c3808f490432f5f785c8bb665438169662b /ast/polygon.h | |
parent | 87f20cbc44f8f6b53c00c37f89bc134a1f4cf29e (diff) | |
parent | d26ed8388f100a12996c0b92a98040ef2ba7fa8e (diff) | |
download | blt-293057bdd882685f8ddad66bf77196a5853b08da.zip blt-293057bdd882685f8ddad66bf77196a5853b08da.tar.gz blt-293057bdd882685f8ddad66bf77196a5853b08da.tar.bz2 |
Merge commit 'd26ed8388f100a12996c0b92a98040ef2ba7fa8e' as 'ast'
Diffstat (limited to 'ast/polygon.h')
-rw-r--r-- | ast/polygon.h | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/ast/polygon.h b/ast/polygon.h new file mode 100644 index 0000000..2cd46b6 --- /dev/null +++ b/ast/polygon.h @@ -0,0 +1,353 @@ +#if !defined( POLYGON_INCLUDED ) /* Include this file only once */ +#define POLYGON_INCLUDED +/* +*+ +* Name: +* polygon.h + +* Type: +* C include file. + +* Purpose: +* Define the interface to the Polygon class. + +* Invocation: +* #include "polygon.h" + +* Description: +* This include file defines the interface to the Polygon class and +* provides the type definitions, function prototypes and macros, +* etc. needed to use this class. +* +* The Polygon class implements a Region which represents a collection +* of points in a Frame. + +* Inheritance: +* The Polygon class inherits from the Region class. + +* 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: +* DSB: David S. Berry (Starlink) + +* History: +* 26-OCT-2004 (DSB): +* Original version. +*- +*/ + +/* Include files. */ +/* ============== */ +/* Interface definitions. */ +/* ---------------------- */ +#include "frame.h" /* Coordinate systems */ +#include "region.h" /* Coordinate regions (parent class) */ +#include "timeframe.h" /* For AST__LT definition */ + +#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 + +/* Flags used to indicate how astOutline<X> should define the pixel + region to be outlined. We omit AST__LT here since it is defined in + timeframe.h (with value 11). */ +#define AST__LE 2 +#define AST__EQ 3 +#define AST__GE 4 +#define AST__GT 5 +#define AST__NE 6 + +/* Type Definitions. */ +/* ================= */ +/* Polygon structure. */ +/* ------------------ */ +/* This structure contains all information that is unique to each object in + the class (e.g. its instance variables). */ +typedef struct AstPolygon { + +/* Attributes inherited from the parent class. */ + AstRegion region; /* Parent class structure */ + +/* Attributes specific to objects in this class. */ + double in[2]; /* A point which is inside the polygon */ + double lbnd[2]; /* Lower axis limits of bounding box */ + double ubnd[2]; /* Upper axis limits of bounding box */ + AstLineDef **edges; /* Cached description of edges */ + double *startsat; /* Perimeter distance to each vertex */ + double totlen; /* Total perimeter distance round polygon */ + int acw; /* Are vertices stored in anti-clockwise order? */ + int stale; /* Is cached information stale? */ + int simp_vertices; /* Simplify by transforming vertices? */ +} AstPolygon; + +/* 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 AstPolygonVtab { + +/* Properties (e.g. methods) inherited from the parent class. */ + AstRegionVtab region_vtab; /* Parent class virtual function table */ + +/* A Unique identifier to determine class membership. */ + AstClassIdentifier id; + +/* Properties (e.g. methods) specific to this class. */ + AstPolygon *(* Downsize)( AstPolygon *, double, int, int * ); + + int (* GetSimpVertices)( AstPolygon *, int * ); + int (* TestSimpVertices)( AstPolygon *, int * ); + void (* ClearSimpVertices)( AstPolygon *, int * ); + void (* SetSimpVertices)( AstPolygon *, int, int * ); + +} AstPolygonVtab; + +#if defined(THREAD_SAFE) + +/* Define a structure holding all data items that are global within the + object.c file. */ + +typedef struct AstPolygonGlobals { + AstPolygonVtab Class_Vtab; + int Class_Init; + char GetAttrib_Buff[ 51 ]; +} AstPolygonGlobals; + + +/* Thread-safe initialiser for all global data used by this module. */ +void astInitPolygonGlobals_( AstPolygonGlobals * ); + +#endif + + +#endif + +/* Function prototypes. */ +/* ==================== */ +/* Prototypes for standard class functions. */ +/* ---------------------------------------- */ +astPROTO_CHECK(Polygon) /* Check class membership */ +astPROTO_ISA(Polygon) /* Test class membership */ + +/* Constructor. */ +#if defined(astCLASS) /* Protected. */ +AstPolygon *astPolygon_( void *, int, int, const double *, AstRegion *, const char *, int *, ...); +#else +AstPolygon *astPolygonId_( void *, int, int, const double *, AstRegion *, const char *, ... )__attribute__((format(printf,6,7))); +#endif + +#if defined(astCLASS) /* Protected */ + +/* Initialiser. */ +AstPolygon *astInitPolygon_( void *, size_t, int, AstPolygonVtab *, const char *, AstFrame *, int, int, const double *, AstRegion *, int * ); + +/* Vtab initialiser. */ +void astInitPolygonVtab_( AstPolygonVtab *, const char *, int * ); + +/* Loader. */ +AstPolygon *astLoadPolygon_( void *, size_t, AstPolygonVtab *, + const char *, AstChannel *, int * ); + +#endif + +/* Prototypes for member functions. */ +/* -------------------------------- */ +AstPolygon *astDownsize_( AstPolygon *, double, int, int * ); + +#if HAVE_LONG_DOUBLE /* Not normally implemented */ +AstPolygon *astOutlineLD_( long double, int, const long double[], const int[2], const int[2], double, int, const int[2], int, int * ); +#endif +AstPolygon *astOutlineB_( signed char, int, const signed char[], const int[2], const int[2], double, int, const int[2], int, int * ); +AstPolygon *astOutlineD_( double, int, const double[], const int[2], const int[2], double, int, const int[2], int, int * ); +AstPolygon *astOutlineF_( float, int, const float[], const int[2], const int[2], double, int, const int[2], int, int * ); +AstPolygon *astOutlineI_( int, int, const int[], const int[2], const int[2], double, int, const int[2], int, int * ); +AstPolygon *astOutlineL_( long int, int, const long int[], const int[2], const int[2], double, int, const int[2], int, int * ); +AstPolygon *astOutlineS_( short int, int, const short int[], const int[2], const int[2], double, int, const int[2], int, int * ); +AstPolygon *astOutlineUB_( unsigned char, int, const unsigned char[], const int[2], const int[2], double, int, const int[2], int, int * ); +AstPolygon *astOutlineUI_( unsigned int, int, const unsigned int[], const int[2], const int[2], double, int, const int[2], int, int * ); +AstPolygon *astOutlineUL_( unsigned long int, int, const unsigned long int[], const int[2], const int[2], double, int, const int[2], int, int * ); +AstPolygon *astOutlineUS_( unsigned short int, int, const unsigned short int[], const int[2], const int[2], double, int, const int[2], int, int * ); + +#if HAVE_LONG_DOUBLE /* Not normally implemented */ +AstPolygon *astConvexLD_( long double, int, const long double[], const int[2], const int[2], int, int * ); +#endif +AstPolygon *astConvexB_( signed char, int, const signed char[], const int[2], const int[2], int, int * ); +AstPolygon *astConvexD_( double, int, const double[], const int[2], const int[2], int, int * ); +AstPolygon *astConvexF_( float, int, const float[], const int[2], const int[2], int, int * ); +AstPolygon *astConvexI_( int, int, const int[], const int[2], const int[2], int, int * ); +AstPolygon *astConvexL_( long int, int, const long int[], const int[2], const int[2], int, int * ); +AstPolygon *astConvexS_( short int, int, const short int[], const int[2], const int[2], int, int * ); +AstPolygon *astConvexUB_( unsigned char, int, const unsigned char[], const int[2], const int[2], int, int * ); +AstPolygon *astConvexUI_( unsigned int, int, const unsigned int[], const int[2], const int[2], int, int * ); +AstPolygon *astConvexUL_( unsigned long int, int, const unsigned long int[], const int[2], const int[2], int, int * ); +AstPolygon *astConvexUS_( unsigned short int, int, const unsigned short int[], const int[2], const int[2], int, int * ); + +# if defined(astCLASS) /* Protected */ +int astGetSimpVertices_( AstPolygon *, int * ); +int astTestSimpVertices_( AstPolygon *, int * ); +void astClearSimpVertices_( AstPolygon *, int * ); +void astSetSimpVertices_( AstPolygon *, int, 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 astCheckPolygon(this) astINVOKE_CHECK(Polygon,this,0) +#define astVerifyPolygon(this) astINVOKE_CHECK(Polygon,this,1) + +/* Test class membership. */ +#define astIsAPolygon(this) astINVOKE_ISA(Polygon,this) + +/* Constructor. */ +#if defined(astCLASS) /* Protected. */ +#define astPolygon astINVOKE(F,astPolygon_) +#else +#define astPolygon astINVOKE(F,astPolygonId_) +#endif + +#if defined(astCLASS) /* Protected */ + +/* Initialiser. */ +#define astInitPolygon(mem,size,init,vtab,name,frame,npnt,indim,points,unc) \ +astINVOKE(O,astInitPolygon_(mem,size,init,vtab,name,frame,npnt,indim,points,unc,STATUS_PTR)) + +/* Vtab Initialiser. */ +#define astInitPolygonVtab(vtab,name) astINVOKE(V,astInitPolygonVtab_(vtab,name,STATUS_PTR)) + +/* Loader. */ +#define astLoadPolygon(mem,size,vtab,name,channel) \ +astINVOKE(O,astLoadPolygon_(mem,size,vtab,name,astCheckChannel(channel),STATUS_PTR)) +#endif + +/* Interfaces to public member functions. */ +/* -------------------------------------- */ +/* Here we make use of astCheckPolygon to validate Polygon pointers + before use. This provides a contextual error report if a pointer + to the wrong sort of Object is supplied. */ + +#define astDownsize(this,maxerr,maxvert) \ +astINVOKE(O,astDownsize_(astCheckPolygon(this),maxerr,maxvert,STATUS_PTR)) + + + +#if HAVE_LONG_DOUBLE /* Not normally implemented */ +#define astOutlineLD(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix) \ +astINVOKE(O,astOutlineLD_(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix,STATUS_PTR)) +#endif + +#define astOutlineB(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix) \ +astINVOKE(O,astOutlineB_(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix,STATUS_PTR)) +#define astOutlineD(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix) \ +astINVOKE(O,astOutlineD_(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix,STATUS_PTR)) +#define astOutlineF(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix) \ +astINVOKE(O,astOutlineF_(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix,STATUS_PTR)) +#define astOutlineI(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix) \ +astINVOKE(O,astOutlineI_(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix,STATUS_PTR)) +#define astOutlineL(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix) \ +astINVOKE(O,astOutlineL_(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix,STATUS_PTR)) +#define astOutlineS(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix) \ +astINVOKE(O,astOutlineS_(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix,STATUS_PTR)) +#define astOutlineUB(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix) \ +astINVOKE(O,astOutlineUB_(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix,STATUS_PTR)) +#define astOutlineUI(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix) \ +astINVOKE(O,astOutlineUI_(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix,STATUS_PTR)) +#define astOutlineUL(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix) \ +astINVOKE(O,astOutlineUL_(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix,STATUS_PTR)) +#define astOutlineUS(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix) \ +astINVOKE(O,astOutlineUS_(value,oper,array,lbnd,ubnd,maxerr,maxvert,inside,starpix,STATUS_PTR)) + + +#if HAVE_LONG_DOUBLE /* Not normally implemented */ +#define astConvexLD(value,oper,array,lbnd,ubnd,starpix) \ +astINVOKE(O,astConvexLD_(value,oper,array,lbnd,ubnd,starpix,STATUS_PTR)) +#endif + +#define astConvexB(value,oper,array,lbnd,ubnd,starpix) \ +astINVOKE(O, astConvexB_(value,oper,array,lbnd,ubnd,starpix,STATUS_PTR)) +#define astConvexD(value,oper,array,lbnd,ubnd,starpix) \ +astINVOKE(O, astConvexD_(value,oper,array,lbnd,ubnd,starpix,STATUS_PTR)) +#define astConvexF(value,oper,array,lbnd,ubnd,starpix) \ +astINVOKE(O, astConvexF_(value,oper,array,lbnd,ubnd,starpix,STATUS_PTR)) +#define astConvexI(value,oper,array,lbnd,ubnd,starpix) \ +astINVOKE(O, astConvexI_(value,oper,array,lbnd,ubnd,starpix,STATUS_PTR)) +#define astConvexL(value,oper,array,lbnd,ubnd,starpix) \ +astINVOKE(O, astConvexL_(value,oper,array,lbnd,ubnd,starpix,STATUS_PTR)) +#define astConvexS(value,oper,array,lbnd,ubnd,starpix) \ +astINVOKE(O, astConvexS_(value,oper,array,lbnd,ubnd,starpix,STATUS_PTR)) +#define astConvexUB(value,oper,array,lbnd,ubnd,starpix) \ +astINVOKE(O, astConvexUB_(value,oper,array,lbnd,ubnd,starpix,STATUS_PTR)) +#define astConvexUI(value,oper,array,lbnd,ubnd,starpix) \ +astINVOKE(O, astConvexUI_(value,oper,array,lbnd,ubnd,starpix,STATUS_PTR)) +#define astConvexUL(value,oper,array,lbnd,ubnd,starpix) \ +astINVOKE(O, astConvexUL_(value,oper,array,lbnd,ubnd,starpix,STATUS_PTR)) +#define astConvexUS(value,oper,array,lbnd,ubnd,starpix) \ +astINVOKE(O, astConvexUS_(value,oper,array,lbnd,ubnd,starpix,STATUS_PTR)) + +#if defined(astCLASS) /* Protected */ +#define astClearSimpVertices(this) \ +astINVOKE(V,astClearSimpVertices_(astCheckPolygon(this),STATUS_PTR)) +#define astGetSimpVertices(this) \ +astINVOKE(V,astGetSimpVertices_(astCheckPolygon(this),STATUS_PTR)) +#define astSetSimpVertices(this,value) \ +astINVOKE(V,astSetSimpVertices_(astCheckPolygon(this),value,STATUS_PTR)) +#define astTestSimpVertices(this) \ +astINVOKE(V,astTestSimpVertices_(astCheckPolygon(this),STATUS_PTR)) +#endif +#endif + + + + + |