mirror of https://github.com/vitalif/openscad
233 lines
6.8 KiB
C++
233 lines
6.8 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 "module.h"
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#include "node.h"
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#include "context.h"
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#include "printutils.h"
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#include "builtin.h"
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#include "polyset.h"
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#include "dxfdata.h"
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#include "progress.h"
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#include "openscad.h" // get_fragments_from_r()
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <QTime>
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#include <QApplication>
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#include <QProgressDialog>
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class DxfRotateExtrudeModule : public AbstractModule
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{
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public:
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DxfRotateExtrudeModule() { }
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virtual AbstractNode *evaluate(const Context *ctx, const ModuleInstantiation *inst) const;
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};
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class DxfRotateExtrudeNode : public AbstractPolyNode
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{
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public:
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int convexity;
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double fn, fs, fa;
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double origin_x, origin_y, scale;
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QString filename, layername;
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DxfRotateExtrudeNode(const ModuleInstantiation *mi) : AbstractPolyNode(mi) {
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convexity = 0;
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fn = fs = fa = 0;
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origin_x = origin_y = scale = 0;
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}
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virtual PolySet *render_polyset(render_mode_e mode) const;
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virtual QString dump(QString indent) const;
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};
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AbstractNode *DxfRotateExtrudeModule::evaluate(const Context *ctx, const ModuleInstantiation *inst) const
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{
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DxfRotateExtrudeNode *node = new DxfRotateExtrudeNode(inst);
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QVector<QString> argnames = QVector<QString>() << "file" << "layer" << "origin" << "scale";
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QVector<Expression*> argexpr;
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Context c(ctx);
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c.args(argnames, argexpr, inst->argnames, inst->argvalues);
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node->fn = c.lookup_variable("$fn").num;
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node->fs = c.lookup_variable("$fs").num;
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node->fa = c.lookup_variable("$fa").num;
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Value file = c.lookup_variable("file");
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Value layer = c.lookup_variable("layer", true);
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Value convexity = c.lookup_variable("convexity", true);
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Value origin = c.lookup_variable("origin", true);
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Value scale = c.lookup_variable("scale", true);
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node->filename = file.text;
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node->layername = layer.text;
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node->convexity = (int)convexity.num;
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origin.getv2(node->origin_x, node->origin_y);
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node->scale = scale.num;
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if (node->convexity <= 0)
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node->convexity = 1;
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if (node->scale <= 0)
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node->scale = 1;
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if (node->filename.isEmpty()) {
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foreach (ModuleInstantiation *v, inst->children) {
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AbstractNode *n = v->evaluate(inst->ctx);
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if (n)
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node->children.append(n);
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}
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}
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return node;
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}
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void register_builtin_dxf_rotate_extrude()
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{
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builtin_modules["dxf_rotate_extrude"] = new DxfRotateExtrudeModule();
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builtin_modules["rotate_extrude"] = new DxfRotateExtrudeModule();
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}
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PolySet *DxfRotateExtrudeNode::render_polyset(render_mode_e rm) const
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{
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QString key = mk_cache_id();
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if (PolySet::ps_cache.contains(key)) {
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PRINT(PolySet::ps_cache[key]->msg);
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return PolySet::ps_cache[key]->ps->link();
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}
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print_messages_push();
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DxfData *dxf;
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if (filename.isEmpty())
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{
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#ifdef ENABLE_CGAL
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CGAL_Nef_polyhedron N;
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N.dim = 2;
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foreach(AbstractNode * v, children) {
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if (v->modinst->tag_background)
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continue;
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N.p2 += v->render_cgal_nef_polyhedron().p2;
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}
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dxf = new DxfData(N);
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#else // ENABLE_CGAL
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PRINT("WARNING: Found rotate_extrude() statement without dxf file but compiled without CGAL support!");
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dxf = new DxfData();
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#endif // ENABLE_CGAL
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} else {
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dxf = new DxfData(fn, fs, fa, filename, layername, origin_x, origin_y, scale);
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}
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PolySet *ps = new PolySet();
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ps->convexity = convexity;
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for (int i = 0; i < dxf->paths.count(); i++)
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{
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double max_x = 0;
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for (int j = 0; j < dxf->paths[i].points.count(); j++) {
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max_x = fmax(max_x, dxf->paths[i].points[j]->x);
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}
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int fragments = get_fragments_from_r(max_x, fn, fs, fa);
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double points[fragments][dxf->paths[i].points.count()][3];
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for (int j = 0; j < fragments; j++) {
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double a = (j*2*M_PI) / fragments;
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for (int k = 0; k < dxf->paths[i].points.count(); k++) {
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if (dxf->paths[i].points[k]->x == 0) {
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points[j][k][0] = 0;
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points[j][k][1] = 0;
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} else {
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points[j][k][0] = dxf->paths[i].points[k]->x * sin(a);
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points[j][k][1] = dxf->paths[i].points[k]->x * cos(a);
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}
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points[j][k][2] = dxf->paths[i].points[k]->y;
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}
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}
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for (int j = 0; j < fragments; j++) {
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int j1 = j + 1 < fragments ? j + 1 : 0;
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for (int k = 0; k < dxf->paths[i].points.count(); k++) {
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int k1 = k + 1 < dxf->paths[i].points.count() ? k + 1 : 0;
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if (points[j][k][0] != points[j1][k][0] ||
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points[j][k][1] != points[j1][k][1] ||
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points[j][k][2] != points[j1][k][2]) {
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ps->append_poly();
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ps->append_vertex(points[j ][k ][0],
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points[j ][k ][1], points[j ][k ][2]);
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ps->append_vertex(points[j1][k ][0],
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points[j1][k ][1], points[j1][k ][2]);
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ps->append_vertex(points[j ][k1][0],
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points[j ][k1][1], points[j ][k1][2]);
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}
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if (points[j][k1][0] != points[j1][k1][0] ||
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points[j][k1][1] != points[j1][k1][1] ||
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points[j][k1][2] != points[j1][k1][2]) {
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ps->append_poly();
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ps->append_vertex(points[j ][k1][0],
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points[j ][k1][1], points[j ][k1][2]);
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ps->append_vertex(points[j1][k ][0],
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points[j1][k ][1], points[j1][k ][2]);
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ps->append_vertex(points[j1][k1][0],
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points[j1][k1][1], points[j1][k1][2]);
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}
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}
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}
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}
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PolySet::ps_cache.insert(key, new PolySet::ps_cache_entry(ps->link()));
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print_messages_pop();
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delete dxf;
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return ps;
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}
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QString DxfRotateExtrudeNode::dump(QString indent) const
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{
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if (dump_cache.isEmpty()) {
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QString text;
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struct stat st;
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memset(&st, 0, sizeof(struct stat));
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stat(filename.toAscii().data(), &st);
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text.sprintf("rotate_extrude(file = \"%s\", cache = \"%x.%x\", layer = \"%s\", "
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"origin = [ %g %g ], scale = %g, convexity = %d, "
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"$fn = %g, $fa = %g, $fs = %g) {\n",
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filename.toAscii().data(), (int)st.st_mtime, (int)st.st_size,
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layername.toAscii().data(), origin_x, origin_y, scale, convexity,
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fn, fs, fa);
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foreach (AbstractNode *v, children)
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text += v->dump(indent + QString("\t"));
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text += indent + "}\n";
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((AbstractNode*)this)->dump_cache = indent + QString("n%1: ").arg(idx) + text;
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}
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return dump_cache;
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}
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