1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*
* 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 "projectionnode.h"
#include "module.h"
#include "context.h"
#include "printutils.h"
#include "builtin.h"
#include "dxfdata.h"
#include "dxftess.h"
#include "polyset.h"
#include "export.h"
#include "progress.h"
#include "visitor.h"
#include "PolySetEvaluator.h"
#ifdef ENABLE_CGAL
# include <CGAL/assertions_behaviour.h>
# include <CGAL/exceptions.h>
#endif
#include <assert.h>
#include <sstream>
#include <boost/assign/std/vector.hpp>
using namespace boost::assign; // bring 'operator+=()' into scope
class ProjectionModule : public AbstractModule
{
public:
ProjectionModule() { }
virtual AbstractNode *evaluate(const Context *ctx, const ModuleInstantiation *inst) const;
};
AbstractNode *ProjectionModule::evaluate(const Context *ctx, const ModuleInstantiation *inst) const
{
ProjectionNode *node = new ProjectionNode(inst);
std::vector<std::string> argnames;
argnames += "cut";
std::vector<Expression*> argexpr;
Context c(ctx);
c.args(argnames, argexpr, inst->argnames, inst->argvalues);
Value convexity = c.lookup_variable("convexity", true);
Value cut = c.lookup_variable("cut", true);
node->convexity = (int)convexity.num;
if (cut.type == Value::BOOL)
node->cut_mode = cut.b;
std::vector<AbstractNode *> evaluatednodes = inst->evaluateChildren();
node->children.insert(node->children.end(), evaluatednodes.begin(), evaluatednodes.end());
return node;
}
PolySet *ProjectionNode::evaluate_polyset(PolySetEvaluator *evaluator) const
{
if (!evaluator) {
PRINTF("WARNING: No suitable PolySetEvaluator found for %s module!", this->name().c_str());
return NULL;
}
print_messages_push();
PolySet *ps = evaluator->evaluatePolySet(*this);
print_messages_pop();
return ps;
}
std::string ProjectionNode::toString() const
{
std::stringstream stream;
stream << "projection(cut = " << (this->cut_mode ? "true" : "false")
<< ", convexity = " << this->convexity << ")";
return stream.str();
}
void register_builtin_projection()
{
builtin_modules["projection"] = new ProjectionModule();
}
|
