#include <grass/shapefil.h>
#include <math.h>
#include <limits.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>

Include dependency graph for shpopen.c:

Go to the source code of this file.

Macros
#define	FALSE 0

#define	TRUE 1

#define	ByteCopy(a, b, c) memcpy( b, a, c )

#define	MIN(a, b) ((a<b) ? a : b)

#define	MAX(a, b) ((a>b) ? a : b)

Typedefs
typedef unsigned char	uchar

typedef int	int32

Functions
void	SHPWriteHeader (SHPHandle psSHP)

SHPHandle SHPAPI_CALL	SHPOpen (const char pszLayer, const char pszAccess)

SHPHandle SHPAPI_CALL	SHPOpenLL (const char pszLayer, const char pszAccess, SAHooks *psHooks)

void SHPAPI_CALL	SHPClose (SHPHandle psSHP)

void SHPAPI_CALL	SHPGetInfo (SHPHandle psSHP, int pnEntities, int pnShapeType, double padfMinBound, double padfMaxBound)

SHPHandle SHPAPI_CALL	SHPCreate (const char *pszLayer, int nShapeType)

SHPHandle SHPAPI_CALL	SHPCreateLL (const char pszLayer, int nShapeType, SAHooks psHooks)

void SHPAPI_CALL	SHPComputeExtents (SHPObject *psObject)

SHPObject SHPAPI_CALL1 *	SHPCreateObject (int nSHPType, int nShapeId, int nParts, const int panPartStart, const int panPartType, int nVertices, const double padfX, const double padfY, const double padfZ, const double padfM){SHPObject psObject;inti, bHasM, bHasZ;psObject=(SHPObject ) calloc(1, sizeof(SHPObject)

	if (nSHPType==SHPT_ARCM\|\|nSHPType==SHPT_POINTM\|\|nSHPType==SHPT_POLYGONM\|\|nSHPType==SHPT_MULTIPOINTM)

	if (nVertices > 0)

	SHPComputeExtents (psObject)

	return (psObject)

SHPObject SHPAPI_CALL1 *	SHPCreateSimpleObject (int nSHPType, int nVertices, const double padfX, const double padfY, const double *padfZ){return(SHPCreateObject(nSHPType,-1, 0, NULL, NULL, nVertices, padfX, padfY, padfZ, NULL)

int SHPAPI_CALL	SHPWriteObject (SHPHandle psSHP, int nShapeId, SHPObject *psObject)

SHPObject SHPAPI_CALL1 *	SHPReadObject (SHPHandle psSHP, int hEntity){intnEntitySize, nRequiredSize;SHPObject *psShape;charpszErrorMsg[128];return(NULL

	if (nEntitySize > psSHP->nBufSize)

	if (psSHP->pabyRec==NULL)

	if (psSHP->sHooks.FSeek(psSHP->fpSHP, psSHP->panRecOffset[hEntity], 0)!=0\|\|psSHP->sHooks.FRead(psSHP->pabyRec, nEntitySize, 1, psSHP->fpSHP)!=1)

	if (8+4 > nEntitySize)

	if (bBigEndian)

else	if (psShape->nSHPType==SHPT_MULTIPOINT\|\|psShape->nSHPType==SHPT_MULTIPOINTM\|\|psShape->nSHPType==SHPT_MULTIPOINTZ)

	return (psShape)

const char SHPAPI_CALL1 *	SHPTypeName (int nSHPType){switch(nSHPType

const char SHPAPI_CALL1 *	SHPPartTypeName (int nPartType){switch(nPartType

void SHPAPI_CALL	SHPDestroyObject (SHPObject *psShape)

int SHPAPI_CALL	SHPRewindObject (SHPHandle hSHP, SHPObject *psObject)

Variables
psObject	nSHPType = nSHPType

psObject	nShapeId = nShapeId

psObject	bMeasureIsUsed = FALSE

	else

	bHasZ = FALSE

psObject	nVertices = nVertices

	nEntitySize = psSHP->panRecSize[hEntity]+8

	psShape = (SHPObject *) calloc(1,sizeof(SHPObject))

Macro Definition Documentation

#define ByteCopy	(	a,
		b,
		c
	)	memcpy( b, a, c )

Definition at line 249 of file shpopen.c.

Referenced by SHPCreateLL(), SHPWriteHeader(), and SHPWriteObject().

#define FALSE 0

Definition at line 245 of file shpopen.c.

Referenced by if(), SHPCreateLL(), SHPOpenLL(), SHPRewindObject(), and SHPWriteObject().

#define MAX	(	a,
		b
	)	((a>b) ? a : b)

Definition at line 252 of file shpopen.c.

Referenced by SHPComputeExtents(), SHPOpenLL(), and SHPWriteObject().

#define MIN	(	a,
		b
	)	((a<b) ? a : b)

Definition at line 251 of file shpopen.c.

Referenced by SHPComputeExtents(), and SHPWriteObject().

#define TRUE 1

Definition at line 246 of file shpopen.c.

Referenced by if(), SHPCreateLL(), SHPOpenLL(), and SHPWriteObject().

Typedef Documentation

typedef int int32

Definition at line 241 of file shpopen.c.

typedef unsigned char uchar

Definition at line 236 of file shpopen.c.

Function Documentation

if ( nSHPType = = SHPT_ARCM || nSHPType == SHPT_POINTM || nSHPType == SHPT_POLYGONM || nSHPType == SHPT_MULTIPOINTM )

Definition at line 1012 of file shpopen.c.

References FALSE, and TRUE.

if	(	nVertices	,
		0
	)

Definition at line 1072 of file shpopen.c.

References SHPObject::bMeasureIsUsed, NULL, nVertices, SHPObject::padfM, SHPObject::padfX, SHPObject::padfY, SHPObject::padfZ, and TRUE.

if	(	nEntitySize	,
		psSHP->	nBufSize
	)

Definition at line 1521 of file shpopen.c.

References malloc(), nEntitySize, NULL, and sprintf().

if ( psSHP-> pabyRec = = NULL )

Definition at line 1543 of file shpopen.c.

References NULL.

if ( psSHP->sHooks.FSeek(psSHP->fpSHP, psSHP->panRecOffset[hEntity], 0)! = 0 || psSHP->sHooks.FRead( psSHP->pabyRec, nEntitySize, 1, psSHP->fpSHP ) != 1 )

Definition at line 1551 of file shpopen.c.

References NULL.

if	(	8+	4,
		nEntitySize
	)

Definition at line 1571 of file shpopen.c.

References NULL, and SHPDestroyObject().

if ( bBigEndian )

Definition at line 1581 of file shpopen.c.

else if ( psShape-> nSHPType = = SHPT_MULTIPOINT || psShape->nSHPType == SHPT_MULTIPOINTM || psShape->nSHPType == SHPT_MULTIPOINTZ )

Definition at line 1801 of file shpopen.c.

References SHPObject::bMeasureIsUsed, SHPObject::dfMMax, SHPObject::dfMMin, SHPObject::dfXMax, SHPObject::dfXMin, SHPObject::dfYMax, SHPObject::dfYMin, SHPObject::dfZMax, SHPObject::dfZMin, SHPObject::nSHPType, NULL, SHPObject::nVertices, SHPObject::padfM, SHPObject::padfX, SHPObject::padfY, SHPObject::padfZ, SHPDestroyObject(), SHPT_MULTIPOINTZ, and TRUE.

return ( psObject )

return ( psShape )

void SHPAPI_CALL SHPClose ( SHPHandle psSHP )

Definition at line 720 of file shpopen.c.

References SHPInfo::bUpdated, SAHooks::FClose, SHPInfo::fpSHP, SHPInfo::fpSHX, free(), NULL, SHPInfo::pabyRec, SHPInfo::panRecOffset, SHPInfo::panRecSize, SHPInfo::sHooks, and SHPWriteHeader().

void SHPAPI_CALL SHPComputeExtents ( SHPObject * psObject )

Definition at line 957 of file shpopen.c.

References SHPObject::dfMMax, SHPObject::dfMMin, SHPObject::dfXMax, SHPObject::dfXMin, SHPObject::dfYMax, SHPObject::dfYMin, SHPObject::dfZMax, SHPObject::dfZMin, MAX, MIN, SHPObject::nVertices, SHPObject::padfM, SHPObject::padfX, SHPObject::padfY, and SHPObject::padfZ.

SHPComputeExtents ( psObject )

SHPHandle SHPAPI_CALL SHPCreate	(	const char *	pszLayer,
		int	nShapeType
	)

Definition at line 789 of file shpopen.c.

References SASetupDefaultHooks(), and SHPCreateLL().

SHPHandle SHPAPI_CALL SHPCreateLL	(	const char *	pszLayer,
		int	nShapeType,
		SAHooks *	psHooks
	)

Definition at line 807 of file shpopen.c.

References ByteCopy, SAHooks::Error, FALSE, SAHooks::FClose, SAHooks::FOpen, free(), SAHooks::FWrite, malloc(), NULL, SHPOpenLL(), sprintf(), and TRUE.

Referenced by SHPCreate().

SHPObject SHPAPI_CALL1* SHPCreateObject	(	int	nSHPType,
		int	nShapeId,
		int	nParts,
		const int *	panPartStart,
		const int *	panPartType,
		int	nVertices,
		const double *	padfX,
		const double *	padfY,
		const double *	padfZ,
		const double *	padfM
	)