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/******************************************************************************
* Copyright (c) 1999, Carl Anderson
*
* this code is based in part on the earlier work of Frank Warmerdam
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
******************************************************************************
*
* shpdata.c - utility program for testing elements of the libraries
*
*
* $Log: shpdata.c,v $
* Revision 1.3 2016-12-05 12:44:07 erouault
* * Major overhaul of Makefile build system to use autoconf/automake.
*
* * Warning fixes in contrib/
*
* Revision 1.2 1999-05-26 02:56:31 candrsn
* updates to shpdxf, dbfinfo, port from Shapelib 1.1.5 of dbfcat and shpinfo
*
*
*
*/
#include <stdlib.h>
#include "shapefil.h"
#include "shpgeo.h"
int main( int argc, char ** argv )
{
SHPHandle old_SHP, new_SHP;
DBFHandle old_DBF, new_DBF;
int nShapeType, nEntities, nVertices, nParts, *panParts, i, iPart;
double *padVertices, adBounds[4];
const char *pszPlus;
DBFFieldType idfld_type;
int idfld, nflds;
char kv[257] = "";
char idfldName[120] = "";
char fldName[120] = "";
char shpFileName[120] = "";
char dbfFileName[120] = "";
char *DBFRow = NULL;
int Cpan[2] = { 0,0 };
int byRing = 1;
PT oCentrd, ringCentrd;
SHPObject *psCShape, *cent_pt;
double oArea = 0.0, oLen = 0.0;
if( argc < 2 )
{
printf( "shpdata shp_file \n" );
exit( 1 );
}
old_SHP = SHPOpen (argv[1], "rb" );
old_DBF = DBFOpen (argv[1], "rb");
if( old_SHP == NULL || old_DBF == NULL )
{
printf( "Unable to open old files:%s\n", argv[1] );
exit( 1 );
}
SHPGetInfo( old_SHP, &nEntities, &nShapeType, NULL, NULL );
for( i = 0; i < nEntities; i++ )
{
int res ;
psCShape = SHPReadObject( old_SHP, i );
if ( byRing == 1 ) {
int ring, prevStart, ringDir;
double ringArea;
prevStart = psCShape->nVertices;
for ( ring = (psCShape->nParts - 1); ring >= 0; ring-- ) {
SHPObject *psO;
int j, numVtx, rStart;
rStart = psCShape->panPartStart[ring];
if ( ring == (psCShape->nParts -1) )
{ numVtx = psCShape->nVertices - rStart; }
else
{ numVtx = psCShape->panPartStart[ring+1] - rStart; }
printf ("(shpdata) Ring(%d) (%d for %d) \n", ring, rStart, numVtx);
psO = SHPClone ( psCShape, ring, ring + 1 );
ringDir = SHPRingDir_2d ( psO, 0 );
ringArea = RingArea_2d (psO->nVertices,(double*) psO->padfX,
(double*) psO->padfY);
RingCentroid_2d ( psO->nVertices, (double*) psO->padfX,
(double*) psO->padfY, &ringCentrd, &ringArea);
printf ("(shpdata) Ring %d, %f Area %d dir \n",
ring, ringArea, ringDir );
SHPDestroyObject ( psO );
printf ("(shpdata) End Ring \n");
} /* (ring) [0,nParts */
} /* by ring */
oArea = SHPArea_2d ( psCShape );
oLen = SHPLength_2d ( psCShape );
oCentrd = SHPCentrd_2d ( psCShape );
printf ("(shpdata) Part (%d) %f Area %f length, C (%f,%f)\n",
i, oArea, oLen, oCentrd.x, oCentrd.y );
}
SHPClose( old_SHP );
DBFClose( old_DBF );
printf ("\n");
}