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/*
* OpenSCAD (www.openscad.at)
* Copyright (C) 2009 Clifford Wolf <clifford@clifford.at>
*
* 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.
*
* 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 "openscad.h"
#include "printutils.h"
Value builtin_dxf_dim(const QVector<QString> &argnames, const QVector<Value> &args)
{
QString filename;
QString layername;
QString name;
double xorigin = 0;
double yorigin = 0;
double scale = 1;
for (int i = 0; i < argnames.count() && i < args.count(); i++) {
if (argnames[i] == "file")
filename = args[i].text;
if (argnames[i] == "layer")
layername = args[i].text;
if (argnames[i] == "origin")
args[i].getv2(xorigin, yorigin);
if (argnames[i] == "scale")
args[i].getnum(scale);
if (argnames[i] == "name")
name = args[i].text;
}
DxfData dxf(36, 0, 0, filename, layername, xorigin, yorigin, scale);
for (int i = 0; i < dxf.dims.count(); i++)
{
if (!name.isNull() && dxf.dims[i].name != name)
continue;
DxfData::Dim *d = &dxf.dims[i];
int type = d->type & 7;
if (type == 0) {
// Rotated, horizontal or vertical
double x = d->coords[4][0] - d->coords[3][0];
double y = d->coords[4][1] - d->coords[3][1];
double angle = d->angle;
double distance_projected_on_line = fabs(x * cos(angle*M_PI/180) + y * sin(angle*M_PI/180));
return Value(distance_projected_on_line);
}
if (type == 1) {
// Aligned
}
if (type == 2) {
// Angular
double a1 = atan2(d->coords[0][0] - d->coords[5][0], d->coords[0][1] - d->coords[5][1]);
double a2 = atan2(d->coords[4][0] - d->coords[3][0], d->coords[4][1] - d->coords[3][1]);
return Value(fabs(a1 - a2) * 180 / M_PI);
}
if (type == 3) {
// Diameter
}
if (type == 4) {
// Radius
}
if (type == 5) {
// Angular 3 Point
}
PRINTA("WARINING: Dimension `%1' in `%2', layer `%3' has unsupported type!", name, filename, layername);
return Value();
}
PRINTA("WARINING: Can't find dimension `%1' in `%2', layer `%3'!", name, filename, layername);
return Value();
}
Value builtin_dxf_cross(const QVector<QString> &argnames, const QVector<Value> &args)
{
QString filename;
QString layername;
double xorigin = 0;
double yorigin = 0;
double scale = 1;
for (int i = 0; i < argnames.count() && i < args.count(); i++) {
if (argnames[i] == "file")
filename = args[i].text;
if (argnames[i] == "layer")
layername = args[i].text;
if (argnames[i] == "origin")
args[i].getv2(xorigin, yorigin);
if (argnames[i] == "scale")
args[i].getnum(scale);
}
DxfData dxf(36, 0, 0, filename, layername, xorigin, yorigin, scale);
double coords[4][2];
for (int i = 0, j = 0; i < dxf.paths.count(); i++) {
if (dxf.paths[i].points.count() != 2)
continue;
coords[j][0] = dxf.paths[i].points[0]->x;
coords[j++][1] = dxf.paths[i].points[0]->y;
coords[j][0] = dxf.paths[i].points[1]->x;
coords[j++][1] = dxf.paths[i].points[1]->y;
if (j == 4) {
double x1 = coords[0][0], y1 = coords[0][1];
double x2 = coords[1][0], y2 = coords[1][1];
double x3 = coords[2][0], y3 = coords[2][1];
double x4 = coords[3][0], y4 = coords[3][1];
double dem = (y4 - y3)*(x2 - x1) - (x4 - x3)*(y2 - y1);
if (dem == 0)
break;
double ua = ((x4 - x3)*(y1 - y3) - (y4 - y3)*(x1 - x3)) / dem;
// double ub = ((x2 - x1)*(y1 - y3) - (y2 - y1)*(x1 - x3)) / dem;
double x = x1 + ua*(x2 - x1);
double y = y1 + ua*(y2 - y1);
Value ret;
ret.type = Value::VECTOR;
ret.vec.append(new Value(x));
ret.vec.append(new Value(y));
return ret;
}
}
PRINTA("WARINING: Can't find cross in `%1', layer `%2'!", filename, layername);
return Value();
}
void initialize_builtin_dxf_dim()
{
builtin_functions["dxf_dim"] = new BuiltinFunction(&builtin_dxf_dim);
builtin_functions["dxf_cross"] = new BuiltinFunction(&builtin_dxf_cross);
}
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