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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
*
*/
#define INCLUDE_ABSTRACT_NODE_DETAILS
#include "openscad.h"
#include "printutils.h"
#include <QFile>
#include <sys/types.h>
#include <sys/stat.h>
enum import_type_e {
TYPE_STL,
TYPE_OFF,
TYPE_DXF
};
class ImportModule : public AbstractModule
{
public:
import_type_e type;
ImportModule(import_type_e type) : type(type) { }
virtual AbstractNode *evaluate(const Context *ctx, const ModuleInstantiation *inst) const;
};
class ImportNode : public AbstractPolyNode
{
public:
import_type_e type;
QString filename;
QString layername;
int convexity;
double fn, fs, fa;
double origin_x, origin_y, scale;
ImportNode(const ModuleInstantiation *mi, import_type_e type) : AbstractPolyNode(mi), type(type) { }
virtual PolySet *render_polyset(render_mode_e mode) const;
virtual QString dump(QString indent) const;
};
AbstractNode *ImportModule::evaluate(const Context *ctx, const ModuleInstantiation *inst) const
{
ImportNode *node = new ImportNode(inst, type);
QVector<QString> argnames;
if (type == TYPE_DXF) {
argnames = QVector<QString>() << "file" << "layer" << "convexity" << "origin" << "scale";
} else {
argnames = QVector<QString>() << "file" << "convexity";
}
QVector<Expression*> argexpr;
// Map old argnames to new argnames for compatibility
QVector<QString> inst_argnames = inst->argnames;
for (int i=0; i<inst_argnames.size(); i++) {
if (inst_argnames[i] == "filename")
inst_argnames[i] = "file";
if (inst_argnames[i] == "layername")
inst_argnames[i] = "layer";
}
Context c(ctx);
c.args(argnames, argexpr, inst_argnames, inst->argvalues);
node->fn = c.lookup_variable("$fn").num;
node->fs = c.lookup_variable("$fs").num;
node->fa = c.lookup_variable("$fa").num;
node->filename = c.lookup_variable("file").text;
node->layername = c.lookup_variable("layer", true).text;
node->convexity = c.lookup_variable("convexity", true).num;
if (node->convexity <= 0)
node->convexity = 1;
Value origin = c.lookup_variable("origin", true);
node->origin_x = node->origin_y = 0;
origin.getv2(node->origin_x, node->origin_y);
node->scale = c.lookup_variable("scale", true).num;
if (node->scale <= 0)
node->scale = 1;
return node;
}
void register_builtin_import()
{
builtin_modules["import_stl"] = new ImportModule(TYPE_STL);
builtin_modules["import_off"] = new ImportModule(TYPE_OFF);
builtin_modules["import_dxf"] = new ImportModule(TYPE_DXF);
}
PolySet *ImportNode::render_polyset(render_mode_e) const
{
PolySet *p = new PolySet();
p->convexity = convexity;
if (type == TYPE_STL)
{
handle_dep(filename);
QFile f(filename);
if (!f.open(QIODevice::ReadOnly)) {
PRINTF("WARNING: Can't open import file `%s'.", filename.toAscii().data());
return p;
}
QByteArray data = f.read(5);
if (data.size() == 5 && QString(data) == QString("solid"))
{
int i = 0;
double vdata[3][3];
QRegExp splitre = QRegExp("\\s*(vertex)?\\s+");
f.readLine();
while (!f.atEnd())
{
QString line = QString(f.readLine()).remove("\n").remove("\r");
if (line.contains("solid") || line.contains("facet") || line.contains("endloop"))
continue;
if (line.contains("outer loop")) {
i = 0;
continue;
}
if (line.contains("vertex")) {
QStringList tokens = line.split(splitre);
bool ok[3] = { false, false, false };
if (tokens.size() == 4) {
vdata[i][0] = tokens[1].toDouble(&ok[0]);
vdata[i][1] = tokens[2].toDouble(&ok[1]);
vdata[i][2] = tokens[3].toDouble(&ok[2]);
}
if (!ok[0] || !ok[1] || !ok[2]) {
PRINTF("WARNING: Can't parse vertex line `%s'.", line.toAscii().data());
i = 10;
} else if (++i == 3) {
p->append_poly();
p->append_vertex(vdata[0][0], vdata[0][1], vdata[0][2]);
p->append_vertex(vdata[1][0], vdata[1][1], vdata[1][2]);
p->append_vertex(vdata[2][0], vdata[2][1], vdata[2][2]);
}
}
}
}
else
{
f.read(80-5+4);
while (1) {
struct {
float i, j, k;
float x1, y1, z1;
float x2, y2, z2;
float x3, y3, z3;
unsigned short acount;
} __attribute__ ((packed)) data;
if (f.read((char*)&data, sizeof(data)) != sizeof(data))
break;
p->append_poly();
p->append_vertex(data.x1, data.y1, data.z1);
p->append_vertex(data.x2, data.y2, data.z2);
p->append_vertex(data.x3, data.y3, data.z3);
}
}
}
if (type == TYPE_OFF)
{
PRINTF("WARNING: OFF import is not implemented yet.");
}
if (type == TYPE_DXF)
{
DxfData dd(fn, fs, fa, filename, layername, origin_x, origin_y, scale);
p->is2d = true;
dxf_tesselate(p, &dd, 0, true, false, 0);
dxf_border_to_ps(p, &dd);
}
return p;
}
QString ImportNode::dump(QString indent) const
{
if (dump_cache.isEmpty()) {
QString text;
struct stat st;
memset(&st, 0, sizeof(struct stat));
stat(filename.toAscii().data(), &st);
if (type == TYPE_STL)
text.sprintf("import_stl(file = \"%s\", cache = \"%x.%x\", convexity = %d);\n",
filename.toAscii().data(), (int)st.st_mtime, (int)st.st_size, convexity);
if (type == TYPE_OFF)
text.sprintf("import_off(file = \"%s\", cache = \"%x.%x\", convexity = %d);\n",
filename.toAscii().data(), (int)st.st_mtime, (int)st.st_size, convexity);
if (type == TYPE_DXF)
text.sprintf("import_dxf(file = \"%s\", cache = \"%x.%x\", layer = \"%s\", "
"origin = [ %f %f ], scale = %f, convexity = %d, "
"$fn = %f, $fa = %f, $fs = %f);\n",
filename.toAscii().data(), (int)st.st_mtime, (int)st.st_size,
layername.toAscii().data(), origin_x, origin_y, scale, convexity,
fn, fs, fa);
((AbstractNode*)this)->dump_cache = indent + QString("n%1: ").arg(idx) + text;
}
return dump_cache;
}
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