2009-07-25 00:50:30 +04:00
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/*
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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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* 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 "openscad.h"
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2009-12-09 17:22:50 +03:00
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#include "printutils.h"
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2009-07-25 00:50:30 +04:00
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2010-01-10 16:32:22 +03:00
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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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QHash<QString,Value> dxf_dim_cache;
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QHash<QString,Value> dxf_cross_cache;
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2009-07-25 00:50:30 +04:00
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Value builtin_dxf_dim(const QVector<QString> &argnames, const QVector<Value> &args)
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{
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QString filename;
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QString layername;
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QString name;
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double xorigin = 0;
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double yorigin = 0;
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double scale = 1;
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for (int i = 0; i < argnames.count() && i < args.count(); i++) {
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if (argnames[i] == "file")
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filename = args[i].text;
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if (argnames[i] == "layer")
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2009-07-25 01:57:46 +04:00
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layername = args[i].text;
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2009-07-25 00:50:30 +04:00
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if (argnames[i] == "origin")
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args[i].getv2(xorigin, yorigin);
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if (argnames[i] == "scale")
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args[i].getnum(scale);
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if (argnames[i] == "name")
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name = args[i].text;
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}
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2010-01-10 16:32:22 +03:00
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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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QString key = filename + "|" + layername + "|" + name + "|" + QString::number(xorigin) + "|" + QString::number(yorigin) +
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"|" + QString::number(scale) + "|" + QString::number(st.st_mtime) + "|" + QString::number(st.st_size);
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if (dxf_dim_cache.contains(key))
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return dxf_dim_cache[key];
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2009-07-25 00:50:30 +04:00
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DxfData dxf(36, 0, 0, filename, layername, xorigin, yorigin, scale);
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for (int i = 0; i < dxf.dims.count(); i++)
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{
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if (!name.isNull() && dxf.dims[i].name != name)
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continue;
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DxfData::Dim *d = &dxf.dims[i];
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int type = d->type & 7;
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if (type == 0) {
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// Rotated, horizontal or vertical
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double x = d->coords[4][0] - d->coords[3][0];
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double y = d->coords[4][1] - d->coords[3][1];
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double angle = d->angle;
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2009-07-25 01:57:46 +04:00
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double distance_projected_on_line = fabs(x * cos(angle*M_PI/180) + y * sin(angle*M_PI/180));
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2010-01-10 16:32:22 +03:00
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return dxf_dim_cache[key] = Value(distance_projected_on_line);
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2009-07-25 00:50:30 +04:00
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}
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if (type == 1) {
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// Aligned
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}
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if (type == 2) {
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// Angular
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2009-07-25 01:57:46 +04:00
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double a1 = atan2(d->coords[0][0] - d->coords[5][0], d->coords[0][1] - d->coords[5][1]);
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double a2 = atan2(d->coords[4][0] - d->coords[3][0], d->coords[4][1] - d->coords[3][1]);
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2010-01-10 16:32:22 +03:00
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return dxf_dim_cache[key] = Value(fabs(a1 - a2) * 180 / M_PI);
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2009-07-25 00:50:30 +04:00
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}
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if (type == 3) {
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// Diameter
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}
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if (type == 4) {
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// Radius
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}
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if (type == 5) {
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// Angular 3 Point
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}
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2010-01-11 22:18:20 +03:00
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PRINTA("WARNING: Dimension `%1' in `%2', layer `%3' has unsupported type!", name, filename, layername);
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2009-07-25 00:50:30 +04:00
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return Value();
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}
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2010-01-11 22:18:20 +03:00
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PRINTA("WARNING: Can't find dimension `%1' in `%2', layer `%3'!", name, filename, layername);
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2009-07-25 00:50:30 +04:00
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return Value();
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}
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2009-07-25 01:57:46 +04:00
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Value builtin_dxf_cross(const QVector<QString> &argnames, const QVector<Value> &args)
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{
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QString filename;
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QString layername;
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double xorigin = 0;
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double yorigin = 0;
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double scale = 1;
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for (int i = 0; i < argnames.count() && i < args.count(); i++) {
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if (argnames[i] == "file")
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filename = args[i].text;
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if (argnames[i] == "layer")
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layername = args[i].text;
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if (argnames[i] == "origin")
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args[i].getv2(xorigin, yorigin);
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if (argnames[i] == "scale")
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args[i].getnum(scale);
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}
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2010-01-10 16:32:22 +03:00
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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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QString key = filename + "|" + layername + "|" + QString::number(xorigin) + "|" + QString::number(yorigin) +
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"|" + QString::number(scale) + "|" + QString::number(st.st_mtime) + "|" + QString::number(st.st_size);
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if (dxf_cross_cache.contains(key))
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return dxf_cross_cache[key];
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2009-07-25 01:57:46 +04:00
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DxfData dxf(36, 0, 0, filename, layername, xorigin, yorigin, scale);
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double coords[4][2];
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for (int i = 0, j = 0; i < dxf.paths.count(); i++) {
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if (dxf.paths[i].points.count() != 2)
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continue;
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coords[j][0] = dxf.paths[i].points[0]->x;
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coords[j++][1] = dxf.paths[i].points[0]->y;
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coords[j][0] = dxf.paths[i].points[1]->x;
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coords[j++][1] = dxf.paths[i].points[1]->y;
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if (j == 4) {
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double x1 = coords[0][0], y1 = coords[0][1];
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double x2 = coords[1][0], y2 = coords[1][1];
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double x3 = coords[2][0], y3 = coords[2][1];
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double x4 = coords[3][0], y4 = coords[3][1];
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double dem = (y4 - y3)*(x2 - x1) - (x4 - x3)*(y2 - y1);
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if (dem == 0)
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break;
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double ua = ((x4 - x3)*(y1 - y3) - (y4 - y3)*(x1 - x3)) / dem;
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// double ub = ((x2 - x1)*(y1 - y3) - (y2 - y1)*(x1 - x3)) / dem;
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double x = x1 + ua*(x2 - x1);
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double y = y1 + ua*(y2 - y1);
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Value ret;
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ret.type = Value::VECTOR;
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ret.vec.append(new Value(x));
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ret.vec.append(new Value(y));
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2010-01-10 16:32:22 +03:00
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return dxf_cross_cache[key] = ret;
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2009-07-25 01:57:46 +04:00
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}
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}
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2010-01-11 22:18:20 +03:00
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PRINTA("WARNING: Can't find cross in `%1', layer `%2'!", filename, layername);
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2009-07-25 01:57:46 +04:00
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return Value();
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}
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2009-07-25 00:50:30 +04:00
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void initialize_builtin_dxf_dim()
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{
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builtin_functions["dxf_dim"] = new BuiltinFunction(&builtin_dxf_dim);
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2009-07-25 01:57:46 +04:00
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builtin_functions["dxf_cross"] = new BuiltinFunction(&builtin_dxf_cross);
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2009-07-25 00:50:30 +04:00
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}
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