1 /* This file is part of Shapes.
3 * Shapes is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation, either version 3 of the License, or
8 * Shapes is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with Shapes. If not, see <http://www.gnu.org/licenses/>.
16 * Copyright 2008 Henrik Tidefelt
21 #include "angleselect.h"
24 angleSelectNorm2( double a1
, double a2
, double w1
, double w2
)
26 a1
= fmod( a1
, 2 * M_PI
);
31 a2
= fmod( a2
, 2 * M_PI
);
32 while( a2
< a1
- M_PI
)
36 while( a2
> a1
+ M_PI
)
40 return ( w2
* a1
+ w1
* a2
) / ( w1
+ w2
);