103 lines
2.8 KiB
C++
103 lines
2.8 KiB
C++
// main.cxx -- process shapefiles and extract polygon outlines,
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// clipping against and sorting them into the revelant
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// tiles.
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//
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// Written by Curtis Olson, started February 1999.
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//
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// Copyright (C) 1999 Curtis L. Olson - curt@flightgear.org
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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// (Log is kept at end of this file)
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// Include Geographic Foundation Classes library
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// libgfc.a includes need this bit o' strangeness
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#if defined ( linux )
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# define _LINUX_
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#endif
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#include <gfc/gadt_polygon.h>
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#include <gfc/gdbf.h>
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#include <gfc/gshapefile.h>
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// include Generic Polygon Clipping Library
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extern "C" {
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#include <gpc.h>
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}
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#include <Debug/logstream.hxx>
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int main( int argc, char **argv ) {
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fglog().setLogLevels( FG_ALL, FG_DEBUG );
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if ( argc != 2 ) {
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FG_LOG( FG_GENERAL, FG_ALERT, "Usage: " << argv[0] << " <shapefile>" );
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exit(-1);
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}
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FG_LOG( FG_GENERAL, FG_DEBUG, "Opening " << argv[1] << " for reading." );
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GShapeFile * sf = new GShapeFile( argv[1] );
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GDBFile *names = new GDBFile( argv[1] );
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GPolygon shape;
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double *coords; // in decimal degrees
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int n_vertices;
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double lon, lat;
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FG_LOG( FG_GENERAL, FG_INFO, sf->numRecords() );
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GShapeFile::ShapeType t = sf->shapeType();
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if ( t != GShapeFile::av_Polygon ) {
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FG_LOG( FG_GENERAL, FG_ALERT, "Can't handle non-polygon shape files" );
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exit(-1);
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}
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for ( int i = 0; i < sf->numRecords(); i++ ) {
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//fetch i-th record (shape)
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FG_LOG( FG_GENERAL, FG_DEBUG, names->getRecord( i ) );
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sf->getShapeRec(i, &shape);
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FG_LOG( FG_GENERAL, FG_DEBUG, "Record = " << i << " rings = "
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<< shape.numRings() );
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for ( int j = 0; j < shape.numRings(); j++ ) {
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//return j-th branch's coords, # of vertices
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n_vertices = shape.getRing(j, coords);
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FG_LOG( FG_GENERAL, FG_DEBUG, " ring " << j << " = " );
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FG_LOG( FG_GENERAL, FG_INFO, n_vertices );
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for ( int k = 0; k < n_vertices; k++ ) {
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lon = coords[k*2+0];
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lat = coords[k*2+1];
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FG_LOG( FG_GENERAL, FG_INFO, lon << " " << lat );
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}
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}
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}
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return 0;
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}
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// $Log$
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// Revision 1.1 1999/02/15 19:10:23 curt
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// Initial revision.
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//
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