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flightgear/Tools/Construct/Main/master.cxx

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3.4 KiB
C++

// master.cxx -- top level construction routines
//
// Written by Curtis Olson, started May 1999.
//
// Copyright (C) 1999 Curtis L. Olson - curt@flightgear.org
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// $Id$
#include <stdlib.h> // for system()
#include <sys/stat.h> // for stat()
#include <unistd.h> // for stat()
#include <string>
#include <Bucket/newbucket.hxx>
// #include <Include/fg_constants.h>
// #include <Math/mat3.h>
// #include <Debug/logstream.hxx>
// #include <Array/array.hxx>
// #include <Clipper/clipper.hxx>
// #include <GenOutput/genobj.hxx>
// #include <Match/match.hxx>
// #include <Triangulate/triangle.hxx>
// return true if file exists
static bool file_exists( const string& file ) {
struct stat buf;
if ( stat( file.c_str(), &buf ) == 0 ) {
return true;
} else {
return false;
}
}
// check if the specified tile has data defined for it
static bool has_data( const string& path, const FGBucket& b ) {
string dem_file = path + ".dem" + "/Scenery/" + b.gen_base_path()
+ "/" + b.gen_index_str() + ".dem";
if ( file_exists( dem_file ) ) {
return true;
}
dem_file += ".gz";
if ( file_exists( dem_file ) ) {
return true;
}
return false;
}
// build the tile and check for success
bool build_tile( const string& work_base, const string& output_base,
const FGBucket& b ) {
string result_file = "result";
string command = "./construct " + work_base + " " + output_base + " "
+ b.gen_index_str() + " > " + result_file + " 2>&1";
cout << command << endl;
system( command.c_str() );
FILE *fp = fopen( result_file.c_str(), "r" );
char line[256];
while ( fgets( line, 256, fp ) != NULL ) {
string line_str = line;
line_str = line_str.substr(0, line_str.length() - 1);
cout << line_str << endl;
if ( line_str == "[Finished successfully]" ) {
fclose(fp);
return true;
}
}
fclose(fp);
return false;
}
// display usage and exit
void usage( const string name ) {
cout << "Usage: " << name << " <work_base> <output_base>" << endl;
exit(-1);
}
main(int argc, char **argv) {
double lon, lat;
if ( argc < 3 ) {
usage( argv[0] );
}
string work_base = argv[1];
string output_base = argv[2];
FGBucket tmp1( 0.0, 0.0 );
double dy = tmp1.get_height();
lat = -90.0 + dy * 0.5;
while ( lat <= 90.0 ) {
FGBucket tmp2( 0.0, lat );
double dx = tmp2.get_width();
lon = -180 + dx * 0.5;
while ( lon <= 180.0 ) {
FGBucket b( lon, lat );
cout << "Bucket = " << b << endl;
if ( has_data( work_base, b ) ) {
if ( ! build_tile( work_base, output_base, b ) ) {
cout << "error building last tile" << endl;
exit(-1);
}
}
lon += dx;
}
lat += dy;
}
}