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
|
/*
* KSeg
* Copyright (C) 1999-2006 Ilya Baran
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Send comments and/or bug reports to:
* ibaran@mit.edu
*/
#include <stdio.h>
#include "G_object.H"
void G_lineObject::update()
{
if(IS_TRANSFORM(where->getDescendType())) {
line = parent(0)->getLine();
updateTransform();
}
else switch(where->getDescendType()) {
case G_TWOPOINTS_LINE:
line = G_line(parent(0)->getPoint(), parent(1)->getPoint() - parent(0)->getPoint());
break;
case G_PARALLEL_LINE:
line = G_line(parent(0)->getPoint(), parent(1)->getStraightRef()->getDirection());
break;
case G_PERPENDICULAR_LINE:
line = G_line(parent(0)->getPoint(), parent(1)->getStraightRef()->getDirection().r90());
break;
}
if(!line.isValid()) where->setExists(false);
return;
}
|
