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Diffstat (limited to 'src/cgalrenderer.cc')
| -rw-r--r-- | src/cgalrenderer.cc | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/cgalrenderer.cc b/src/cgalrenderer.cc new file mode 100644 index 0000000..551c061 --- /dev/null +++ b/src/cgalrenderer.cc @@ -0,0 +1,126 @@ +/* + * OpenSCAD (www.openscad.org) + * Copyright (C) 2009-2011 Clifford Wolf <clifford@clifford.at> and + * Marius Kintel <marius@kintel.net> + * + * 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. + * + * As a special exception, you have permission to link this program + * with the CGAL library and distribute executables, as long as you + * follow the requirements of the GNU GPL in regard to all of the + * software in the executable aside from CGAL. + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include "cgalrenderer.h" +#include "polyset.h" +#include "CGAL_renderer.h" +#include "dxfdata.h" +#include "dxftess.h" + +#include "Preferences.h" + +CGALRenderer::CGALRenderer(const CGAL_Nef_polyhedron &root) : root(root) +{ + if (root.dim == 2) { + DxfData dd(root); + this->polyset = new PolySet(); + this->polyset->is2d = true; + dxf_tesselate(this->polyset, &dd, 0, true, false, 0); + } + else if (root.dim == 3) { + this->polyhedron = new Polyhedron(); + // FIXME: Make independent of Preferences + this->polyhedron->setColor(Polyhedron::CGAL_NEF3_MARKED_FACET_COLOR, + Preferences::inst()->color(Preferences::CGAL_FACE_BACK_COLOR).red(), + Preferences::inst()->color(Preferences::CGAL_FACE_BACK_COLOR).green(), + Preferences::inst()->color(Preferences::CGAL_FACE_BACK_COLOR).blue()); + this->polyhedron->setColor(Polyhedron::CGAL_NEF3_UNMARKED_FACET_COLOR, + Preferences::inst()->color(Preferences::CGAL_FACE_FRONT_COLOR).red(), + Preferences::inst()->color(Preferences::CGAL_FACE_FRONT_COLOR).green(), + Preferences::inst()->color(Preferences::CGAL_FACE_FRONT_COLOR).blue()); + + CGAL::OGL::Nef3_Converter<CGAL_Nef_polyhedron3>::convert_to_OGLPolyhedron(this->root.p3, this->polyhedron); + this->polyhedron->init(); + } +} + +CGALRenderer::~CGALRenderer() +{ + if (this->polyset) this->polyset->unlink(); +} + +void CGALRenderer::draw(bool showfaces, bool showedges) const +{ + if (this->root.dim == 2) { + // Draw 2D polygons + glDisable(GL_LIGHTING); + const QColor &col = Preferences::inst()->color(Preferences::CGAL_FACE_2D_COLOR); + glColor3f(col.redF(), col.greenF(), col.blueF()); + + for (int i=0; i < this->polyset->polygons.size(); i++) { + glBegin(GL_POLYGON); + for (int j=0; j < this->polyset->polygons[i].size(); j++) { + PolySet::Point p = this->polyset->polygons[i][j]; + glVertex3d(p.x, p.y, -0.1); + } + glEnd(); + } + + typedef CGAL_Nef_polyhedron2::Explorer Explorer; + typedef Explorer::Face_const_iterator fci_t; + typedef Explorer::Halfedge_around_face_const_circulator heafcc_t; + typedef Explorer::Point Point; + Explorer E = this->root.p2.explorer(); + + // Draw 2D edges + glDisable(GL_DEPTH_TEST); + glDisable(GL_LIGHTING); + glLineWidth(2); + const QColor &col2 = Preferences::inst()->color(Preferences::CGAL_EDGE_2D_COLOR); + glColor3f(col2.redF(), col2.greenF(), col2.blueF()); + + // Extract the boundary, including inner boundaries of the polygons + for (fci_t fit = E.faces_begin(), facesend = E.faces_end(); fit != facesend; ++fit) { + bool fset = false; + double fx = 0.0, fy = 0.0; + heafcc_t fcirc(E.halfedge(fit)), fend(fcirc); + CGAL_For_all(fcirc, fend) { + if(E.is_standard(E.target(fcirc))) { + Point p = E.point(E.target(fcirc)); + double x = to_double(p.x()), y = to_double(p.y()); + if (!fset) { + glBegin(GL_LINE_STRIP); + fx = x, fy = y; + fset = true; + } + glVertex3d(x, y, -0.1); + } + } + if (fset) { + glVertex3d(fx, fy, -0.1); + glEnd(); + } + } + + glEnable(GL_DEPTH_TEST); + } + else if (this->root.dim == 3) { + if (showfaces) this->polyhedron->set_style(SNC_BOUNDARY); + else this->polyhedron->set_style(SNC_SKELETON); + + this->polyhedron->draw(showfaces && showedges); + } +} |