mirror of https://github.com/vitalif/openscad
236 lines
6.2 KiB
C++
236 lines
6.2 KiB
C++
/*
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* OpenSCAD (www.openscad.at)
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* Copyright (C) 2009 Clifford Wolf <clifford@clifford.at>
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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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#include "myqhash.h"
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#include "openscad.h"
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#include "node.h"
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#include "module.h"
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#include "polyset.h"
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#include "context.h"
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#include "value.h"
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#include "export.h"
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#include "builtin.h"
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#include "Tree.h"
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#include "CGAL_Nef_polyhedron.h"
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#include "CGALEvaluator.h"
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#include "PolySetCGALEvaluator.h"
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#include "CGALRenderer.h"
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#include "CGAL_renderer.h"
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#include "cgal.h"
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#include "OffscreenView.h"
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#include "handle_dep.h"
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#include <QApplication>
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#include <QFile>
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#include <QDir>
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#include <QSet>
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#include <QTextStream>
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#include <getopt.h>
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#include <iostream>
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#include <assert.h>
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#include <sstream>
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std::string commandline_commands;
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QString currentdir;
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QString examplesdir;
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QString librarydir;
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using std::string;
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void cgalTree(Tree &tree)
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{
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assert(tree.root());
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CGALEvaluator evaluator(tree);
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Traverser evaluate(evaluator, *tree.root(), Traverser::PRE_AND_POSTFIX);
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evaluate.execute();
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}
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AbstractNode *find_root_tag(AbstractNode *n)
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{
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foreach(AbstractNode *v, n->children) {
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if (v->modinst->tag_root) return v;
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if (AbstractNode *vroot = find_root_tag(v)) return vroot;
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}
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return NULL;
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}
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struct CsgInfo
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{
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OffscreenView *glview;
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};
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int main(int argc, char **argv)
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{
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if (argc != 2) {
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fprintf(stderr, "Usage: %s <file.scad>\n", argv[0]);
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exit(1);
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}
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const char *filename = argv[1];
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initialize_builtin_functions();
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initialize_builtin_modules();
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QApplication app(argc, argv, false);
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QDir original_path = QDir::current();
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currentdir = QDir::currentPath();
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QDir libdir(QApplication::instance()->applicationDirPath());
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#ifdef Q_WS_MAC
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libdir.cd("../Resources"); // Libraries can be bundled
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if (!libdir.exists("libraries")) libdir.cd("../../..");
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#elif defined(Q_OS_UNIX)
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if (libdir.cd("../share/openscad/libraries")) {
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librarydir = libdir.path();
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} else
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if (libdir.cd("../../share/openscad/libraries")) {
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librarydir = libdir.path();
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} else
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if (libdir.cd("../../libraries")) {
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librarydir = libdir.path();
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} else
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#endif
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if (libdir.cd("libraries")) {
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librarydir = libdir.path();
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}
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Context root_ctx;
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root_ctx.functions_p = &builtin_functions;
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root_ctx.modules_p = &builtin_modules;
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root_ctx.set_variable("$fn", Value(0.0));
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root_ctx.set_variable("$fs", Value(1.0));
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root_ctx.set_variable("$fa", Value(12.0));
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root_ctx.set_variable("$t", Value(0.0));
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Value zero3;
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zero3.type = Value::VECTOR;
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zero3.append(new Value(0.0));
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zero3.append(new Value(0.0));
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zero3.append(new Value(0.0));
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root_ctx.set_variable("$vpt", zero3);
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root_ctx.set_variable("$vpr", zero3);
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AbstractModule *root_module;
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ModuleInstantiation root_inst;
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QFileInfo fileInfo(filename);
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handle_dep(filename);
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FILE *fp = fopen(filename, "rt");
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if (!fp) {
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fprintf(stderr, "Can't open input file `%s'!\n", filename);
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exit(1);
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} else {
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std::stringstream text;
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char buffer[513];
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int ret;
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while ((ret = fread(buffer, 1, 512, fp)) > 0) {
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buffer[ret] = 0;
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text << buffer;
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}
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fclose(fp);
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text << commandline_commands;
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root_module = parse(text.str().c_str(), fileInfo.absolutePath().toLocal8Bit(), false);
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if (!root_module) {
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exit(1);
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}
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}
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QDir::setCurrent(fileInfo.absolutePath());
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AbstractNode::resetIndexCounter();
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AbstractNode *absolute_root_node = root_module->evaluate(&root_ctx, &root_inst);
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AbstractNode *root_node;
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// Do we have an explicit root node (! modifier)?
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if (!(root_node = find_root_tag(absolute_root_node))) root_node = absolute_root_node;
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Tree tree(root_node);
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CsgInfo csgInfo;
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CGALEvaluator cgalevaluator(tree);
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PolySetCGALEvaluator psevaluator(cgalevaluator);
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CGAL_Nef_polyhedron N = cgalevaluator.evaluateCGALMesh(*root_node);
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QDir::setCurrent(original_path.absolutePath());
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// match with csgtest ends
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csgInfo.glview = new OffscreenView(512,512);
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GLenum err = glewInit();
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if (GLEW_OK != err) {
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fprintf(stderr, "Unable to init GLEW: %s\n", glewGetErrorString(err));
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exit(1);
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}
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#ifdef DEBUG
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cout << "GLEW version " << glewGetString(GLEW_VERSION) << "\n";
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cout << (const char *)glGetString(GL_RENDERER) << "(" << (const char *)glGetString(GL_VENDOR) << ")\n"
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<< "OpenGL version " << (const char *)glGetString(GL_VERSION) << "\n";
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cout << "Extensions: " << (const char *)glGetString(GL_EXTENSIONS) << "\n";
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if (GLEW_ARB_framebuffer_object) {
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cout << "ARB_FBO supported\n";
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}
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if (GLEW_EXT_framebuffer_object) {
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cout << "EXT_FBO supported\n";
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}
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if (GLEW_EXT_packed_depth_stencil) {
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cout << "EXT_packed_depth_stencil\n";
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}
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#endif
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CGALRenderer cgalRenderer(N);
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BoundingBox bbox;
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if (cgalRenderer.polyhedron) {
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CGAL::Bbox_3 cgalbbox = cgalRenderer.polyhedron->bbox();
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bbox = BoundingBox(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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else if (cgalRenderer.polyset) {
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bbox = cgalRenderer.polyset->getBoundingBox();
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}
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Vector3d center = (bbox.min() + bbox.max()) / 2;
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double radius = (bbox.max() - bbox.min()).norm() / 2;
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Vector3d cameradir(1, 1, -0.5);
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Vector3d camerapos = center - radius*2*cameradir;
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csgInfo.glview->setCamera(camerapos, center);
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csgInfo.glview->setRenderer(&cgalRenderer);
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csgInfo.glview->paintGL();
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csgInfo.glview->save("/dev/stdout");
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destroy_builtin_functions();
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destroy_builtin_modules();
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return 0;
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}
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