113 lines
2.9 KiB
C++
113 lines
2.9 KiB
C++
// demchop.cxx -- chop up a dem file into it's corresponding pieces and stuff
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// them into the workspace directory
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//
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// Written by Curtis Olson, started March 1999.
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//
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// Copyright (C) 1997 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 <Include/compiler.h>
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#include STL_STRING
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#include <Debug/logstream.hxx>
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#include <Bucket/newbucket.hxx>
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#include <DEM/dem.hxx>
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#include "point2d.hxx"
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FG_USING_STD(string);
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int main(int argc, char **argv) {
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/*
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fgDEM dem;
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FGBucket p;
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string fg_root;
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string filename;
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double error;
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int i, j;
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*/
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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,
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"Usage " << argv[0] << " <dem_file> <work_dir>" );
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exit(-1);
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}
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string dem_name = argv[1];
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string work_dir = argv[2];
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string command = "mkdir -p " + work_dir;
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system( command.c_str() );
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FGDem dem(dem_name);
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dem.parse();
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dem.close();
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point2d min, max;
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min.x = dem.get_originx() / 3600.0 + FG_HALF_BUCKET_SPAN;
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min.y = dem.get_originy() / 3600.0 + FG_HALF_BUCKET_SPAN;
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FGBucket b_min( min.x, min.y );
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max.x = (dem.get_originx() + dem.get_cols() * dem.get_col_step()) / 3600.0
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- FG_HALF_BUCKET_SPAN;
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max.y = (dem.get_originy() + dem.get_rows() * dem.get_row_step()) / 3600.0
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- FG_HALF_BUCKET_SPAN;
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FGBucket b_max( max.x, max.y );
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if ( b_min == b_max ) {
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dem.write_area( work_dir, b_min, true );
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} else {
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FGBucket b_cur;
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int dx, dy, i, j;
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fgBucketDiff(b_min, b_max, &dx, &dy);
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cout << "DEM file spans tile boundaries" << endl;
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cout << " dx = " << dx << " dy = " << dy << endl;
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if ( (dx > 20) || (dy > 20) ) {
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cout << "somethings really wrong!!!!" << endl;
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exit(-1);
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}
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for ( j = 0; j <= dy; j++ ) {
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for ( i = 0; i <= dx; i++ ) {
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b_cur = fgBucketOffset(min.x, min.y, i, j);
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dem.write_area( work_dir, b_cur, true );
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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 1.3 1999/03/12 22:53:46 curt
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// First working version!
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//
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// Revision 1.2 1999/03/10 16:09:44 curt
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// Hacking towards the first working version.
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//
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// Revision 1.1 1999/03/10 01:02:54 curt
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// Initial revision.
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//
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