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121 lines
4.2 KiB
121 lines
4.2 KiB
/****************************************************************************** |
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* $Id: shprewind.c,v 1.5 2016-12-05 12:44:05 erouault Exp $ |
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* |
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* Project: Shapelib |
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* Purpose: Utility to validate and reset the winding order of rings in |
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* polygon geometries to match the ordering required by spec. |
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* Author: Frank Warmerdam, warmerdam@pobox.com |
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* |
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****************************************************************************** |
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* Copyright (c) 2002, Frank Warmerdam |
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* |
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* This software is available under the following "MIT Style" license, |
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* or at the option of the licensee under the LGPL (see COPYING). This |
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* option is discussed in more detail in shapelib.html. |
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* |
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* -- |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included |
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* in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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* DEALINGS IN THE SOFTWARE. |
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****************************************************************************** |
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* |
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* $Log: shprewind.c,v $ |
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* Revision 1.5 2016-12-05 12:44:05 erouault |
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* * Major overhaul of Makefile build system to use autoconf/automake. |
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* |
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* * Warning fixes in contrib/ |
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* |
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* Revision 1.4 2004-09-26 20:09:35 fwarmerdam |
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* avoid rcsid warnings |
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* |
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* Revision 1.3 2004/01/09 16:39:49 fwarmerdam |
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* include standard include files |
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* |
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* Revision 1.2 2002/04/10 17:23:11 warmerda |
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* copy from source to destination now |
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* |
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* Revision 1.1 2002/04/10 16:56:36 warmerda |
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* New |
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* |
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*/ |
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#include <string.h> |
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#include <stdlib.h> |
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#include "shapefil.h" |
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int main( int argc, char ** argv ) |
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{ |
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SHPHandle hSHP, hSHPOut; |
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int nShapeType, nEntities, i, nInvalidCount=0; |
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double adfMinBound[4], adfMaxBound[4]; |
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/* -------------------------------------------------------------------- */ |
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/* Display a usage message. */ |
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/* -------------------------------------------------------------------- */ |
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if( argc != 3 ) |
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{ |
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printf( "shprewind in_shp_file out_shp_file\n" ); |
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exit( 1 ); |
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} |
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/* -------------------------------------------------------------------- */ |
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/* Open the passed shapefile. */ |
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/* -------------------------------------------------------------------- */ |
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hSHP = SHPOpen( argv[1], "rb" ); |
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if( hSHP == NULL ) |
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{ |
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printf( "Unable to open:%s\n", argv[1] ); |
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exit( 1 ); |
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} |
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SHPGetInfo( hSHP, &nEntities, &nShapeType, adfMinBound, adfMaxBound ); |
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/* -------------------------------------------------------------------- */ |
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/* Create output shapefile. */ |
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/* -------------------------------------------------------------------- */ |
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hSHPOut = SHPCreate( argv[2], nShapeType ); |
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if( hSHPOut == NULL ) |
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{ |
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printf( "Unable to create:%s\n", argv[2] ); |
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exit( 1 ); |
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} |
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/* -------------------------------------------------------------------- */ |
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/* Skim over the list of shapes, printing all the vertices. */ |
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/* -------------------------------------------------------------------- */ |
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for( i = 0; i < nEntities; i++ ) |
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{ |
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SHPObject *psShape; |
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psShape = SHPReadObject( hSHP, i ); |
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if( SHPRewindObject( hSHP, psShape ) ) |
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nInvalidCount++; |
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SHPWriteObject( hSHPOut, -1, psShape ); |
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SHPDestroyObject( psShape ); |
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} |
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SHPClose( hSHP ); |
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SHPClose( hSHPOut ); |
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printf( "%d objects rewound.\n", nInvalidCount ); |
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exit( 0 ); |
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}
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