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// Copyright (c) 2012-2013, IGN France.
// Copyright (c) 2012-2024, Oslandia.
// Copyright (c) 2024-2025, SFCGAL team.
// SPDX-License-Identifier: LGPL-2.0-or-later
#include <fstream>
#include <iostream>
#include <sstream>
#include <boost/lexical_cast.hpp>
#include "SFCGAL/Exception.h"
#include "SFCGAL/GeometryCollection.h"
#include "SFCGAL/detail/generator/building.h"
#include "SFCGAL/io/wkt.h"
// optional osg support for outputs
#include "SFCGAL/io/osg.h"
using namespace SFCGAL;
class InputData {
public:
InputData(const std::string &wkt_ = "", double wallHeight_ = 5.0,
double roofSlope_ = 1.0)
: wkt(wkt_), roofSlope(roofSlope_), wallHeight(wallHeight_)
{
}
public:
std::string wkt;
double roofSlope;
double wallHeight;
};
/**
* @brief read input file
*/
std::vector<InputData>
readInputFile(const std::string &filename)
{
std::vector<InputData> result;
std::ifstream ifs(filename.c_str());
if (!ifs.good()) {
BOOST_THROW_EXCEPTION(Exception("can't open file"));
return result;
}
std::string line;
while (std::getline(ifs, line)) {
std::istringstream iss(line);
std::string wkt;
std::string wallHeight = "10.0";
std::string roofSlope = "1.0";
std::getline(iss, wkt, '|') && std::getline(iss, wallHeight, '|') &&
std::getline(iss, roofSlope, '|');
if (!wkt.empty()) {
result.push_back(InputData(wkt, boost::lexical_cast<double>(wallHeight),
boost::lexical_cast<double>(roofSlope)));
}
}
ifs.close();
return result;
}
void
processFile(const std::string &filename)
{
std::vector<InputData> data = readInputFile(filename);
std::unique_ptr<GeometryCollection> result(new GeometryCollection());
std::cout << "#" << data.size() << std::endl;
for (size_t i = 0; i < data.size(); i++) {
std::unique_ptr<Geometry> g(io::readWkt(data[i].wkt));
std::unique_ptr<Geometry> building(
generator::building(*g, data[i].wallHeight, data[i].roofSlope));
result->addGeometry(building.release());
}
io::osgWriteFile(*result, "building.osg");
}
int
main(int argc, char *argv[])
{
if (argc < 2) {
std::cerr << "usage : SFCGAL-building <input-file>" << std::endl;
std::cerr << "file format : " << std::endl;
std::cerr << "<wkt(polygon|multipolygon)|wallHeight>|<roofSlope>"
<< std::endl;
return 0;
}
try {
processFile(argv[1]);
return 0;
} catch (Exception &e) {
std::cerr << e.diagnostic() << std::endl;
return 1;
}
return 0;
}
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