278 lines
8.1 KiB
C++
278 lines
8.1 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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#undef E
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#undef DEG_TO_RAD
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#undef RAD_TO_DEG
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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 <Include/compiler.h>
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#include STL_STRING
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#include <Debug/logstream.hxx>
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#include <Polygon/index.hxx>
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#include <Polygon/names.hxx>
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#include "shape.hxx"
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int main( int argc, char **argv ) {
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gpc_polygon gpc_shape;
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int i, j;
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fglog().setLogLevels( FG_ALL, FG_DEBUG );
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if ( argc != 3 ) {
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FG_LOG( FG_GENERAL, FG_ALERT, "Usage: " << argv[0]
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<< " <shape_file> <work_dir>" );
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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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// initialize persistant polygon counter
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string counter_file = argv[2];
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counter_file += "/polygon.counter";
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poly_index_init( counter_file );
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// initialize structure for building gpc polygons
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shape_utils_init();
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GShapeFile * sf = new GShapeFile( argv[1] );
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GDBFile *dbf = new GDBFile( argv[1] );
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string path = argv[2];
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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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FG_LOG( FG_GENERAL, FG_INFO, "shape file records = " << 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 ( i = 0; i < sf->numRecords(); i++ ) {
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//fetch i-th record (shape)
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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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AreaType area = get_shapefile_type(dbf, i);
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FG_LOG( FG_GENERAL, FG_DEBUG, "area type = " << get_area_name(area)
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<< " (" << (int)area << ")" );
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FG_LOG( FG_GENERAL, FG_INFO, " record = " << i
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<< " ring = " << 0 );
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if ( area == MarshArea ) {
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// interior of polygon is marsh, holes are water
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// do main outline first
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init_shape(&gpc_shape);
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n_vertices = shape.getRing(0, coords);
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add_to_shape(n_vertices, coords, &gpc_shape);
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process_shape(path, area, &gpc_shape);
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free_shape(&gpc_shape);
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// do lakes (individually) next
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for ( j = 1; j < shape.numRings(); j++ ) {
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FG_LOG( FG_GENERAL, FG_INFO, " record = " << i
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<< " ring = " << j );
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init_shape(&gpc_shape);
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n_vertices = shape.getRing(j, coords);
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add_to_shape(n_vertices, coords, &gpc_shape);
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process_shape(path, LakeArea, &gpc_shape);
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free_shape(&gpc_shape);
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}
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} else if ( area == OceanArea ) {
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// interior of polygon is ocean, holes are islands
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init_shape(&gpc_shape);
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for ( j = 0; j < shape.numRings(); j++ ) {
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n_vertices = shape.getRing(j, coords);
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add_to_shape(n_vertices, coords, &gpc_shape);
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}
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process_shape(path, area, &gpc_shape);
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free_shape(&gpc_shape);
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} else if ( area == LakeArea ) {
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// interior of polygon is lake, holes are islands
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init_shape(&gpc_shape);
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for ( j = 0; j < shape.numRings(); j++ ) {
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n_vertices = shape.getRing(j, coords);
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add_to_shape(n_vertices, coords, &gpc_shape);
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}
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process_shape(path, area, &gpc_shape);
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free_shape(&gpc_shape);
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} else if ( area == DryLakeArea ) {
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// interior of polygon is dry lake, holes are islands
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init_shape(&gpc_shape);
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for ( j = 0; j < shape.numRings(); j++ ) {
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n_vertices = shape.getRing(j, coords);
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add_to_shape(n_vertices, coords, &gpc_shape);
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}
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process_shape(path, area, &gpc_shape);
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free_shape(&gpc_shape);
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} else if ( area == IntLakeArea ) {
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// interior of polygon is intermittent lake, holes are islands
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init_shape(&gpc_shape);
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for ( j = 0; j < shape.numRings(); j++ ) {
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n_vertices = shape.getRing(j, coords);
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add_to_shape(n_vertices, coords, &gpc_shape);
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}
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process_shape(path, area, &gpc_shape);
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free_shape(&gpc_shape);
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} else if ( area == ReservoirArea ) {
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// interior of polygon is reservoir, holes are islands
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init_shape(&gpc_shape);
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for ( j = 0; j < shape.numRings(); j++ ) {
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n_vertices = shape.getRing(j, coords);
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add_to_shape(n_vertices, coords, &gpc_shape);
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}
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process_shape(path, area, &gpc_shape);
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free_shape(&gpc_shape);
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} else if ( area == IntReservoirArea ) {
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// interior of polygon is intermittent reservoir, holes are islands
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init_shape(&gpc_shape);
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for ( j = 0; j < shape.numRings(); j++ ) {
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n_vertices = shape.getRing(j, coords);
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add_to_shape(n_vertices, coords, &gpc_shape);
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}
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process_shape(path, area, &gpc_shape);
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free_shape(&gpc_shape);
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} else if ( area == StreamArea ) {
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// interior of polygon is stream, holes are islands
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init_shape(&gpc_shape);
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for ( j = 0; j < shape.numRings(); j++ ) {
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n_vertices = shape.getRing(j, coords);
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add_to_shape(n_vertices, coords, &gpc_shape);
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}
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process_shape(path, area, &gpc_shape);
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free_shape(&gpc_shape);
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} else if ( area == CanalArea ) {
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// interior of polygon is canal, holes are islands
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init_shape(&gpc_shape);
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for ( j = 0; j < shape.numRings(); j++ ) {
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n_vertices = shape.getRing(j, coords);
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add_to_shape(n_vertices, coords, &gpc_shape);
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}
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process_shape(path, area, &gpc_shape);
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free_shape(&gpc_shape);
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} else if ( area == GlacierArea ) {
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// interior of polygon is glacier, holes are dry land
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init_shape(&gpc_shape);
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for ( j = 0; j < shape.numRings(); j++ ) {
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n_vertices = shape.getRing(j, coords);
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add_to_shape(n_vertices, coords, &gpc_shape);
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}
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process_shape(path, area, &gpc_shape);
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free_shape(&gpc_shape);
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} else if ( area == VoidArea ) {
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// interior is ????
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// skip for now
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FG_LOG( FG_GENERAL, FG_ALERT, "Void area ... SKIPPING!" );
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if ( shape.numRings() > 1 ) {
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FG_LOG( FG_GENERAL, FG_ALERT, " Void area with holes!" );
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// exit(-1);
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}
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init_shape(&gpc_shape);
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for ( j = 0; j < shape.numRings(); j++ ) {
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n_vertices = shape.getRing(j, coords);
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add_to_shape(n_vertices, coords, &gpc_shape);
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}
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// process_shape(path, area, &gpc_shape);
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free_shape(&gpc_shape);
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} else if ( area == NullArea ) {
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// interior is ????
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// skip for now
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FG_LOG( FG_GENERAL, FG_ALERT, "Null area ... SKIPPING!" );
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if ( shape.numRings() > 1 ) {
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FG_LOG( FG_GENERAL, FG_ALERT, " Null area with holes!" );
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// exit(-1);
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}
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init_shape(&gpc_shape);
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for ( j = 0; j < shape.numRings(); j++ ) {
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n_vertices = shape.getRing(j, coords);
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add_to_shape(n_vertices, coords, &gpc_shape);
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}
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// process_shape(path, area, &gpc_shape);
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free_shape(&gpc_shape);
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} else {
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FG_LOG( FG_GENERAL, FG_ALERT, "Uknown area!" );
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exit(-1);
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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 1.5 1999/03/01 15:36:28 curt
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// Tweaked a function call name in "names.hxx".
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//
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// Revision 1.4 1999/02/25 21:31:05 curt
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// First working version???
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//
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// Revision 1.3 1999/02/23 01:29:04 curt
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// Additional progress.
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//
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// Revision 1.2 1999/02/19 19:05:18 curt
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// Working on clipping shapes and distributing into buckets.
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//
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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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