mirror of https://github.com/CGAL/cgal
124 lines
3.9 KiB
C++
124 lines
3.9 KiB
C++
// Copyright (c) 2018-2020 GeometryFactory (France)
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org).
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
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//
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// Author(s) : Guillaume Damiand <guillaume.damiand@liris.cnrs.fr>
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#ifndef CGAL_DRAW_SURFACE_MESH_H
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#define CGAL_DRAW_SURFACE_MESH_H
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#ifdef DOXYGEN_RUNNING
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/*!
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\ingroup PkgDrawSurfaceMesh
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Open a new window and draw `asm`, an instance of the `CGAL::Surface_mesh` class. The function is blocking, that is the program continues as soon as the user closes the window. This function requires `CGAL_Qt5`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined.
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Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt5` and add the definition `CGAL_USE_BASIC_VIEWER`.
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\tparam SM an instance of the `CGAL::Surface_mesh` class.
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\param asm the surface mesh to draw.
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*/
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template<class SM>
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void draw(const SM& asm);
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#else // DOXYGEN_RUNNING
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#include <CGAL/license/Surface_mesh.h>
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#include <CGAL/Qt/Basic_viewer_qt.h>
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#ifdef CGAL_USE_BASIC_VIEWER
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#include <CGAL/Qt/init_ogl_context.h>
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#include <CGAL/Surface_mesh.h>
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#include <CGAL/draw_face_graph.h>
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#include <CGAL/use.h>
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namespace CGAL {
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// Check if there are any color maps that could be used, random otherwise
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template <typename K>
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struct Surface_mesh_basic_viewer_color_map
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: DefaultColorFunctorFaceGraph
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{
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using Base = DefaultColorFunctorFaceGraph;
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using SM = ::CGAL::Surface_mesh<K>;
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using vertex_descriptor = typename boost::graph_traits<SM>::vertex_descriptor;
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using edge_descriptor = typename boost::graph_traits<SM>::edge_descriptor;
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using face_descriptor = typename boost::graph_traits<SM>::face_descriptor;
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using vertex_colors = typename SM::template Property_map<vertex_descriptor, CGAL::IO::Color>;
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using edge_colors = typename SM::template Property_map<edge_descriptor, CGAL::IO::Color>;
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using face_colors = typename SM::template Property_map<face_descriptor, CGAL::IO::Color>;
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Surface_mesh_basic_viewer_color_map(const SM& amesh)
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{
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bool found = false;
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std::tie(vcolors, found) = amesh.template property_map<vertex_descriptor, CGAL::IO::Color>("v:color");
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std::tie(ecolors, found) = amesh.template property_map<edge_descriptor, CGAL::IO::Color>("e:color");
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std::tie(fcolors, found) = amesh.template property_map<face_descriptor, CGAL::IO::Color>("f:color");
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CGAL_USE(found);
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}
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CGAL::IO::Color operator()(const Surface_mesh<K>& amesh,
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const vertex_descriptor v) const
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{
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return vcolors ? get(vcolors, v) : Base::operator()(amesh, v);
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}
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CGAL::IO::Color operator()(const Surface_mesh<K>& amesh,
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const edge_descriptor e) const
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{
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return ecolors ? get(ecolors, e) : Base::operator()(amesh, e);
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}
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CGAL::IO::Color operator()(const Surface_mesh<K>& amesh,
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const face_descriptor f) const
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{
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return fcolors ? get(fcolors, f) : Base::operator()(amesh, f);
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}
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private:
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vertex_colors vcolors;
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edge_colors ecolors;
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face_colors fcolors;
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};
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// Specialization of draw function.
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template<class K>
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void draw(const Surface_mesh<K>& amesh,
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const char* title="Surface_mesh Basic Viewer",
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bool nofill=false)
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{
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#if defined(CGAL_TEST_SUITE)
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bool cgal_test_suite=true;
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#else
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bool cgal_test_suite=qEnvironmentVariableIsSet("CGAL_TEST_SUITE");
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#endif
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if (!cgal_test_suite)
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{
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CGAL::Qt::init_ogl_context(4,3);
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int argc=1;
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const char* argv[2]={"surface_mesh_viewer", nullptr};
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QApplication app(argc,const_cast<char**>(argv));
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SimpleFaceGraphViewerQt mainwindow(app.activeWindow(), amesh, title, nofill,
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Surface_mesh_basic_viewer_color_map<K>(amesh));
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mainwindow.show();
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app.exec();
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}
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}
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} // End namespace CGAL
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#endif // CGAL_USE_BASIC_VIEWER
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#endif // DOXYGEN_RUNNING
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#endif // CGAL_DRAW_SURFACE_MESH_H
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