mirror of https://github.com/vitalif/openscad
163 lines
5.1 KiB
C++
163 lines
5.1 KiB
C++
/*
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* OpenSCAD (www.openscad.org)
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* Copyright (C) 2009-2011 Clifford Wolf <clifford@clifford.at> and
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* Marius Kintel <marius@kintel.net>
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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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* As a special exception, you have permission to link this program
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* with the CGAL library and distribute executables, as long as you
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* follow the requirements of the GNU GPL in regard to all of the
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* software in the executable aside from CGAL.
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifdef _MSC_VER
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// Boost conflicts with MPFR under MSVC (google it)
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#include <mpfr.h>
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#endif
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// dxfdata.h must come first for Eigen SIMD alignment issues
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#include "dxfdata.h"
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#include "polyset.h"
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#include "polyset-utils.h"
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#include "printutils.h"
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#include "CGALRenderer.h"
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#include "CGAL_OGL_Polyhedron.h"
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#include "CGAL_Nef_polyhedron.h"
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#include "cgal.h"
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//#include "Preferences.h"
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CGALRenderer::CGALRenderer(shared_ptr<const class Geometry> geom)
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{
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if (shared_ptr<const PolySet> ps = dynamic_pointer_cast<const PolySet>(geom)) {
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assert(ps->getDimension() == 3);
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// We need to tessellate here, in case the generated PolySet contains concave polygons
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// See testdata/scad/3D/features/polyhedron-concave-test.scad
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PolySet *ps_tri = new PolySet(3, ps->convexValue());
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ps_tri->setConvexity(ps->getConvexity());
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PolysetUtils::tessellate_faces(*ps, *ps_tri);
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this->polyset.reset(ps_tri);
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}
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else if (shared_ptr<const Polygon2d> poly = dynamic_pointer_cast<const Polygon2d>(geom)) {
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this->polyset.reset(poly->tessellate());
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}
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else if (shared_ptr<const CGAL_Nef_polyhedron> new_N = dynamic_pointer_cast<const CGAL_Nef_polyhedron>(geom)) {
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assert(new_N->getDimension() == 3);
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if (!new_N->isEmpty()) {
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this->N = new_N;
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}
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}
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}
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CGALRenderer::~CGALRenderer()
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{
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}
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shared_ptr<class CGAL_OGL_Polyhedron> CGALRenderer::getPolyhedron() const
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{
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if (this->N && !this->polyhedron) buildPolyhedron();
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return this->polyhedron;
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}
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void CGALRenderer::buildPolyhedron() const
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{
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PRINTD("buildPolyhedron");
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this->polyhedron.reset(new CGAL_OGL_Polyhedron(*this->colorscheme));
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CGAL::OGL::Nef3_Converter<CGAL_Nef_polyhedron3>::convert_to_OGLPolyhedron(*this->N->p3, this->polyhedron.get());
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// CGAL_NEF3_MARKED_FACET_COLOR <- CGAL_FACE_BACK_COLOR
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// CGAL_NEF3_UNMARKED_FACET_COLOR <- CGAL_FACE_FRONT_COLOR
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this->polyhedron->init();
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PRINTD("buildPolyhedron() end");
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}
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// Overridden from Renderer
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void CGALRenderer::setColorScheme(const ColorScheme &cs)
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{
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PRINTD("setColorScheme");
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Renderer::setColorScheme(cs);
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this->polyhedron.reset(); // Mark as dirty
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PRINTD("setColorScheme done");
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}
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void CGALRenderer::draw(bool showfaces, bool showedges) const
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{
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PRINTD("draw()");
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if (this->polyset) {
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PRINTD("draw() polyset");
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if (this->polyset->getDimension() == 2) {
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// Draw 2D polygons
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glDisable(GL_LIGHTING);
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// FIXME: const QColor &col = Preferences::inst()->color(Preferences::CGAL_FACE_2D_COLOR);
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glColor3f(0.0f, 0.75f, 0.60f);
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for (size_t i=0; i < this->polyset->polygons.size(); i++) {
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glBegin(GL_POLYGON);
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for (size_t j=0; j < this->polyset->polygons[i].size(); j++) {
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const Vector3d &p = this->polyset->polygons[i][j];
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glVertex3d(p[0], p[1], -0.1);
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}
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glEnd();
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}
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// Draw 2D edges
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glDisable(GL_DEPTH_TEST);
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glLineWidth(2);
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// FIXME: const QColor &col2 = Preferences::inst()->color(Preferences::CGAL_EDGE_2D_COLOR);
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glColor3f(1.0f, 0.0f, 0.0f);
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this->polyset->render_edges(CSGMODE_NONE);
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glEnable(GL_DEPTH_TEST);
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}
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else {
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// Draw 3D polygons
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const Color4f c(-1,-1,-1,-1);
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setColor(COLORMODE_MATERIAL, c.data(), NULL);
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this->polyset->render_surface(CSGMODE_NORMAL, Transform3d::Identity(), NULL);
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}
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}
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else {
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shared_ptr<class CGAL_OGL_Polyhedron> polyhedron = getPolyhedron();
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if (polyhedron) {
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PRINTD("draw() polyhedron");
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if (showfaces) polyhedron->set_style(SNC_BOUNDARY);
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else polyhedron->set_style(SNC_SKELETON);
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polyhedron->draw(showfaces && showedges);
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}
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}
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PRINTD("draw() end");
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}
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BoundingBox CGALRenderer::getBoundingBox() const
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{
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BoundingBox bbox;
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if (this->polyset) {
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bbox = this->polyset->getBoundingBox();
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}
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else {
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shared_ptr<class CGAL_OGL_Polyhedron> polyhedron = getPolyhedron();
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if (polyhedron) {
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CGAL::Bbox_3 cgalbbox = polyhedron->bbox();
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bbox = BoundingBox(
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Vector3d(cgalbbox.xmin(), cgalbbox.ymin(), cgalbbox.zmin()),
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Vector3d(cgalbbox.xmax(), cgalbbox.ymax(), cgalbbox.zmax()));
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}
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}
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return bbox;
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}
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