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
|
/*
* 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.
*
* 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 "csgnode.h"
#include "module.h"
#include "csgterm.h"
#include "builtin.h"
#include "printutils.h"
#include <sstream>
#include <assert.h>
class CsgModule : public AbstractModule
{
public:
csg_type_e type;
CsgModule(csg_type_e type) : type(type) { }
virtual AbstractNode *evaluate(const Context *ctx, const ModuleInstantiation *inst) const;
};
AbstractNode *CsgModule::evaluate(const Context*, const ModuleInstantiation *inst) const
{
CsgNode *node = new CsgNode(inst, type);
foreach (ModuleInstantiation *v, inst->children) {
AbstractNode *n = v->evaluate(inst->ctx);
if (n != NULL)
node->children.append(n);
}
return node;
}
CSGTerm *CsgNode::render_csg_term(double m[20], QVector<CSGTerm*> *highlights, QVector<CSGTerm*> *background) const
{
CSGTerm *t1 = NULL;
foreach (AbstractNode *v, children) {
CSGTerm *t2 = v->render_csg_term(m, highlights, background);
if (t2 && !t1) {
t1 = t2;
} else if (t2 && t1) {
if (type == CSG_TYPE_UNION) {
t1 = new CSGTerm(CSGTerm::TYPE_UNION, t1, t2);
} else if (type == CSG_TYPE_DIFFERENCE) {
t1 = new CSGTerm(CSGTerm::TYPE_DIFFERENCE, t1, t2);
} else if (type == CSG_TYPE_INTERSECTION) {
t1 = new CSGTerm(CSGTerm::TYPE_INTERSECTION, t1, t2);
}
}
}
if (t1 && modinst->tag_highlight && highlights)
highlights->append(t1->link());
if (t1 && modinst->tag_background && background) {
background->append(t1);
return NULL;
}
return t1;
}
std::string CsgNode::toString() const
{
std::stringstream stream;
switch (this->type) {
case CSG_TYPE_UNION:
stream << "union()";
break;
case CSG_TYPE_DIFFERENCE:
stream << "difference()";
break;
case CSG_TYPE_INTERSECTION:
stream << "intersection()";
break;
default:
assert(false);
}
return stream.str();
}
void register_builtin_csgops()
{
builtin_modules["union"] = new CsgModule(CSG_TYPE_UNION);
builtin_modules["difference"] = new CsgModule(CSG_TYPE_DIFFERENCE);
builtin_modules["intersection"] = new CsgModule(CSG_TYPE_INTERSECTION);
}
|
