Developer Documentation
BezierInterpolationT.cc
1 /*===========================================================================*\
2 * *
3 * OpenFlipper *
4  * Copyright (c) 2001-2015, RWTH-Aachen University *
5  * Department of Computer Graphics and Multimedia *
6  * All rights reserved. *
7  * www.openflipper.org *
8  * *
9  *---------------------------------------------------------------------------*
10  * This file is part of OpenFlipper. *
11  *---------------------------------------------------------------------------*
12  * *
13  * Redistribution and use in source and binary forms, with or without *
14  * modification, are permitted provided that the following conditions *
15  * are met: *
16  * *
17  * 1. Redistributions of source code must retain the above copyright notice, *
18  * this list of conditions and the following disclaimer. *
19  * *
20  * 2. Redistributions in binary form must reproduce the above copyright *
21  * notice, this list of conditions and the following disclaimer in the *
22  * documentation and/or other materials provided with the distribution. *
23  * *
24  * 3. Neither the name of the copyright holder nor the names of its *
25  * contributors may be used to endorse or promote products derived from *
26  * this software without specific prior written permission. *
27  * *
28  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
29  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
31  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
32  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
33  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
34  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
35  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
36  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
37  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
38  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
39 * *
40 \*===========================================================================*/
41 
42 /*===========================================================================*\
43 * *
44 * $Revision$ *
45 * $LastChangedBy$ *
46 * $Date$ *
47 * *
48 \*===========================================================================*/
49 
50 #include "AnimationHelper.hh"
51 #include <utility>
52 
53 //-----------------------------------------------------------------------------------------------------
54 
55 template<typename Scalar>
56 std::vector<Scalar> BezierInterpolationT<Scalar>::getValue(Scalar _atX) {
57  float bezierParam = AnimationHelper::approximateCubicBezierParameter<Scalar>(_atX, P0_.first, P1_.first, C0_.first, C1_.first);
58  return AnimationHelper::evaluateBezier<Scalar>(bezierParam, P0_.second, P1_.second, C0_.second, C1_.second);
59 }
60 
61 //-----------------------------------------------------------------------------------------------------
62 
63 template<typename Scalar>
65  typedef std::vector<Scalar> Scalars;
66 
67  Scalars p0_x; p0_x.push_back(P0_.first);
68  Scalars p1_x; p1_x.push_back(P1_.first);
69  Scalars c0_x; c0_x.push_back(C0_.first);
70  Scalars c1_x; c1_x.push_back(C1_.first);
71 
72  return AnimationHelper::evaluateBezier<Scalar>(1.0f, p0_x, p1_x, c0_x, c1_x)[0];
73 }
74 
75 //-----------------------------------------------------------------------------------------------------
76 
77 template<typename Scalar>
79  typedef std::vector<Scalar> Scalars;
80 
81  Scalars p0_x; p0_x.push_back(P0_.first);
82  Scalars p1_x; p1_x.push_back(P1_.first);
83  Scalars c0_x; c0_x.push_back(C0_.first);
84  Scalars c1_x; c1_x.push_back(C1_.first);
85 
86  return AnimationHelper::evaluateBezier<Scalar>(0.0f, p0_x, p1_x, c0_x, c1_x)[0];
87 }
88 
89 //-----------------------------------------------------------------------------------------------------
90 
91 template<typename Scalar>
92 typename BezierInterpolationT<Scalar>::Point&
94  return P0_;
95 }
96 
97 //-----------------------------------------------------------------------------------------------------
98 
99 template<typename Scalar>
100 typename BezierInterpolationT<Scalar>::Point&
102  return C0_;
103 }
104 
105 //-----------------------------------------------------------------------------------------------------
106 
107 template<typename Scalar>
108 typename BezierInterpolationT<Scalar>::Point&
110  return C1_;
111 }
112 
113 //-----------------------------------------------------------------------------------------------------
114 
115 template<typename Scalar>
116 typename BezierInterpolationT<Scalar>::Point&
118  return P1_;
119 }
120 
121 //-----------------------------------------------------------------------------------------------------