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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 <iostream>
#include "SFCGAL/io/wkt.h"
#include "SFCGAL/MultiPolygon.h"
#include "SFCGAL/algorithm/extrude.h"
#include "SFCGAL/algorithm/offset.h"
#include "SFCGAL/algorithm/translate.h"
#include "SFCGAL/detail/io/OsgFactory.h"
#include <osg/Geode>
#include <osg/Geometry>
#include <osg/Group>
#include <osgDB/WriteFile>
using namespace SFCGAL;
int
main()
{
detail::io::OsgFactory factory;
std::unique_ptr<Geometry> g(io::readWkt(
"MULTILINESTRING ((-2.705287 -6.782348, -2.052957 -4.368728, -0.356900 "
"-3.912097, 0.980376 -4.857975, 1.339158 -5.966935, 0.328047 -7.043280, "
"-1.987724 -8.706720, -1.922491 -10.076613, -1.726792 -11.087724, "
"0.882527 -12.457616, 3.491846 -12.490233, 4.242025 -11.120341, 3.720161 "
"-9.489516, 2.480735 -9.098118, -0.519982 -9.130735, -0.291667 "
"-8.413172, 0.915143 -7.075896, 1.958871 -6.619265, 3.883244 -6.358333, "
"5.677151 -6.651882, 6.231631 -7.238978, 6.329480 -8.413172, 5.481452 "
"-9.326434, 4.829122 -9.717832, 4.698656 -10.207079, 4.861738 "
"-10.826792, 5.350986 -11.381272, 6.329480 -11.479122, 8.514785 "
"-11.479122, 10.112993 -11.022491, 10.700090 -10.533244, 12.265681 "
"-8.967652, 12.493996 -7.858692, 12.526613 -7.108513, 12.233065 "
"-5.999552, 10.765323 -5.412455, 8.319086 -5.249373, 6.133781 -5.184140, "
"5.057437 -5.021057, 4.926971 -4.401344, 5.253136 -3.814247, 6.786111 "
"-3.422849, 7.699373 -3.879480, 8.090771 -4.531810, 8.938799 -4.629659, "
"11.156720 -4.597043, 11.287186 -3.031452, 13.766039 -0.487366, "
"17.908333 -0.389516, 20.615502 -4.075179, 18.267115 -10.598477, "
"26.975717 -13.109946))"));
osg::ref_ptr<osg::Group> root = new osg::Group;
// save base
{
osg::Geometry *osgGeometry = factory.createGeometry(*g);
osg::Geode *geode = new osg::Geode;
geode->setName("base");
geode->addDrawable(osgGeometry);
root->addChild(geode);
}
// buffer & extrude
{
double radius = 0.7;
std::unique_ptr<MultiPolygon> buffer(algorithm::offset(*g, radius));
algorithm::translate(*buffer, Kernel::Vector_3(0.0, 0.0, radius));
std::unique_ptr<Geometry> extruded(
algorithm::extrude(*buffer, 3.0, 3.0, 3.0));
osg::Geometry *osgGeometry = factory.createGeometry(*extruded);
osg::Geode *geode = new osg::Geode;
geode->setName("extruded");
geode->addDrawable(osgGeometry);
root->addChild(geode);
}
osgDB::writeNodeFile(*root, "SFCGAL-export-osg.3ds");
osgDB::writeNodeFile(*root, "SFCGAL-export-osg.osg");
return 0;
}
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