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/*
* OpenSCAD (www.openscad.org)
* Copyright (C) 2009-2011 Clifford Wolf <clifford@clifford.at> and
* Marius Kintel <marius@kintel.net>
*
* 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.
*
* As a special exception, you have permission to link this program
* with the CGAL library and distribute executables, as long as you
* follow the requirements of the GNU GPL in regard to all of the
* software in the executable aside from CGAL.
*
* 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 "linearextrudenode.h"
#include "module.h"
#include "evalcontext.h"
#include "printutils.h"
#include "fileutils.h"
#include "builtin.h"
#include "PolySetEvaluator.h"
#include "calc.h"
#include "mathc99.h"
#include <sstream>
#include <boost/assign/std/vector.hpp>
using namespace boost::assign; // bring 'operator+=()' into scope
#include <boost/filesystem.hpp>
namespace fs = boost::filesystem;
class LinearExtrudeModule : public AbstractModule
{
public:
LinearExtrudeModule() { }
virtual AbstractNode *instantiate(const Context *ctx, const ModuleInstantiation *inst, const EvalContext *evalctx) const;
};
AbstractNode *LinearExtrudeModule::instantiate(const Context *ctx, const ModuleInstantiation *inst, const EvalContext *evalctx) const
{
LinearExtrudeNode *node = new LinearExtrudeNode(inst);
AssignmentList args;
args += Assignment("file", NULL), Assignment("layer", NULL), Assignment("height", NULL), Assignment("origin", NULL), Assignment("scale", NULL), Assignment("center", NULL), Assignment("twist", NULL), Assignment("slices", NULL);
Context c(ctx);
c.setVariables(args, evalctx);
node->fn = c.lookup_variable("$fn").toDouble();
node->fs = c.lookup_variable("$fs").toDouble();
node->fa = c.lookup_variable("$fa").toDouble();
Value file = c.lookup_variable("file");
Value layer = c.lookup_variable("layer", true);
Value height = c.lookup_variable("height", true);
Value convexity = c.lookup_variable("convexity", true);
Value origin = c.lookup_variable("origin", true);
Value scale = c.lookup_variable("scale", true);
Value center = c.lookup_variable("center", true);
Value twist = c.lookup_variable("twist", true);
Value slices = c.lookup_variable("slices", true);
if (!file.isUndefined() && file.type() == Value::STRING) {
PRINT("DEPRECATED: Support for reading files in linear_extrude will be removed in future releases. Use a child import() instead.");
node->filename = lookup_file(file.toString(), inst->path(), c.documentPath());
}
// if height not given, and first argument is a number,
// then assume it should be the height.
if (c.lookup_variable("height").isUndefined() &&
evalctx->numArgs() > 0 &&
evalctx->getArgName(0) == "" &&
evalctx->getArgValue(0).type() == Value::NUMBER) {
height = evalctx->getArgValue(0);
}
node->layername = layer.isUndefined() ? "" : layer.toString();
node->height = 100;
height.getDouble(node->height);
node->convexity = (int)convexity.toDouble();
origin.getVec2(node->origin_x, node->origin_y);
node->scale_x = node->scale_y = 1;
scale.getDouble(node->scale_x);
scale.getDouble(node->scale_y);
scale.getVec2(node->scale_x, node->scale_y);
if (center.type() == Value::BOOL)
node->center = center.toBool();
if (node->height <= 0) node->height = 0;
if (node->convexity <= 0)
node->convexity = 1;
if (node->scale_x < 0) node->scale_x = 0;
if (node->scale_y < 0) node->scale_y = 0;
if (twist.type() == Value::NUMBER) {
node->twist = twist.toDouble();
if (slices.type() == Value::NUMBER) {
node->slices = (int)slices.toDouble();
} else {
node->slices = (int)fmax(2, fabs(Calc::get_fragments_from_r(node->height,
node->fn, node->fs, node->fa) * node->twist / 360));
}
node->has_twist = true;
}
if (node->filename.empty()) {
std::vector<AbstractNode *> instantiatednodes = inst->instantiateChildren(evalctx);
node->children.insert(node->children.end(), instantiatednodes.begin(), instantiatednodes.end());
}
return node;
}
class PolySet *LinearExtrudeNode::evaluate_polyset(PolySetEvaluator *evaluator) const
{
if (!evaluator) {
PRINTB("WARNING: No suitable PolySetEvaluator found for %s module!", this->name());
return NULL;
}
print_messages_push();
PolySet *ps = evaluator->evaluatePolySet(*this);
print_messages_pop();
return ps;
}
std::string LinearExtrudeNode::toString() const
{
std::stringstream stream;
stream << this->name() << "(";
if (!this->filename.empty()) { // Ignore deprecated parameters if empty
fs::path path((std::string)this->filename);
stream <<
"file = " << this->filename << ", "
"layer = " << QuotedString(this->layername) << ", "
"origin = [" << this->origin_x << ", " << this->origin_y << "], "
#ifndef OPENSCAD_TESTING
// timestamp is needed for caching, but disturbs the test framework
<< "timestamp = " << (fs::exists(path) ? fs::last_write_time(path) : 0) << ", "
#endif
;
}
stream <<
"height = " << std::dec << this->height << ", "
"center = " << (this->center?"true":"false") << ", "
"convexity = " << this->convexity;
if (this->has_twist) {
stream << ", twist = " << this->twist << ", slices = " << this->slices;
}
stream << ", scale = [" << this->scale_x << ", " << this->scale_y << "]";
stream << ", $fn = " << this->fn << ", $fa = " << this->fa << ", $fs = " << this->fs << ")";
return stream.str();
}
void register_builtin_dxf_linear_extrude()
{
Builtins::init("dxf_linear_extrude", new LinearExtrudeModule());
Builtins::init("linear_extrude", new LinearExtrudeModule());
}
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