Mercurial > hg > orthanc-stone

annotate Framework/Toolbox/GeometryToolbox.h @ 701:58e1faeafb1b refactor-viewport-controller

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fixed truncating conversion warning
author Benjamin Golinvaux <bgo@osimis.io>
date Sun, 19 May 2019 16:26:36 +0200
parents b70e9be013e4
children 53cc787bd7bc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
1 /**
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
2 * Stone of Orthanc
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
4 * Department, University Hospital of Liege, Belgium
439
b70e9be013e4 preparing for 2019
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 196
diff changeset
5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
0
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
6 *
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
7 * This program is free software: you can redistribute it and/or
47
28956ed68280 agpl license
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 40
diff changeset
8 * modify it under the terms of the GNU Affero General Public License
28956ed68280 agpl license
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 40
diff changeset
9 * as published by the Free Software Foundation, either version 3 of
28956ed68280 agpl license
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 40
diff changeset
10 * the License, or (at your option) any later version.
0
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
11 *
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
12 * This program is distributed in the hope that it will be useful, but
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
47
28956ed68280 agpl license
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 40
diff changeset
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
28956ed68280 agpl license
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 40
diff changeset
15 * Affero General Public License for more details.
28956ed68280 agpl license
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 40
diff changeset
16 *
28956ed68280 agpl license
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 40
diff changeset
17 * You should have received a copy of the GNU Affero General Public License
0
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
19 **/
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
20
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
21
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
22 #pragma once
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
23
158
a053ca7fa5c6 LinearAlgebra toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 157
diff changeset
24 #include "LinearAlgebra.h"
0
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
25
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
26 namespace OrthancStone
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
27 {
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
28 namespace GeometryToolbox
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
29 {
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
30 void ProjectPointOntoPlane(Vector& result,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
31 const Vector& point,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
32 const Vector& planeNormal,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
33 const Vector& planeOrigin);
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
34
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
35 bool IsParallel(const Vector& u,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
36 const Vector& v);
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
37
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
38 bool IsParallelOrOpposite(bool& isOpposite,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
39 const Vector& u,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
40 const Vector& v);
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
41
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
42 bool IntersectTwoPlanes(Vector& p,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
43 Vector& direction,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
44 const Vector& origin1,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
45 const Vector& normal1,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
46 const Vector& origin2,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
47 const Vector& normal2);
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
48
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
49 bool ClipLineToRectangle(double& x1, // Coordinates of the clipped line (out)
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
50 double& y1,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
51 double& x2,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
52 double& y2,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
53 const double ax, // Two points defining the line (in)
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
54 const double ay,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
55 const double bx,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
56 const double by,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
57 const double& xmin, // Coordinates of the rectangle (in)
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
58 const double& ymin,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
59 const double& xmax,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
60 const double& ymax);
32
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 0
diff changeset
61
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 0
diff changeset
62 void GetPixelSpacing(double& spacingX,
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 0
diff changeset
63 double& spacingY,
118
a4d0b6c82b29 using Orthanc::DicomMap instead of OrthancPlugins::DicomDatasetReader
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 113
diff changeset
64 const Orthanc::DicomMap& dicom);
122
e3433dabfb8d refactoring DicomStructureSet
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 118
diff changeset
65
e3433dabfb8d refactoring DicomStructureSet
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 118
diff changeset
66 inline double ProjectAlongNormal(const Vector& point,
e3433dabfb8d refactoring DicomStructureSet
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 118
diff changeset
67 const Vector& normal)
e3433dabfb8d refactoring DicomStructureSet
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 118
diff changeset
68 {
e3433dabfb8d refactoring DicomStructureSet
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 118
diff changeset
69 return boost::numeric::ublas::inner_prod(point, normal);
e3433dabfb8d refactoring DicomStructureSet
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 118
diff changeset
70 }
140
2115530d3703 OrientedBoundingBox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 135
diff changeset
71
2115530d3703 OrientedBoundingBox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 135
diff changeset
72 Matrix CreateRotationMatrixAlongX(double a);
2115530d3703 OrientedBoundingBox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 135
diff changeset
73
2115530d3703 OrientedBoundingBox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 135
diff changeset
74 Matrix CreateRotationMatrixAlongY(double a);
2115530d3703 OrientedBoundingBox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 135
diff changeset
75
144
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
76 Matrix CreateRotationMatrixAlongZ(double a);
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
77
165
8d50e6be565d LinearAlgebra toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 158
diff changeset
78 Matrix CreateTranslationMatrix(double dx,
8d50e6be565d LinearAlgebra toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 158
diff changeset
79 double dy,
8d50e6be565d LinearAlgebra toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 158
diff changeset
80 double dz);
8d50e6be565d LinearAlgebra toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 158
diff changeset
81
8d50e6be565d LinearAlgebra toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 158
diff changeset
82 Matrix CreateScalingMatrix(double sx,
8d50e6be565d LinearAlgebra toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 158
diff changeset
83 double sy,
8d50e6be565d LinearAlgebra toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 158
diff changeset
84 double sz);
8d50e6be565d LinearAlgebra toolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 158
diff changeset
85
151
c5044bbfc303 CoordinateSystem3D::IntersectSegment()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 150
diff changeset
86 bool IntersectPlaneAndSegment(Vector& p,
c5044bbfc303 CoordinateSystem3D::IntersectSegment()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 150
diff changeset
87 const Vector& normal,
c5044bbfc303 CoordinateSystem3D::IntersectSegment()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 150
diff changeset
88 double d,
c5044bbfc303 CoordinateSystem3D::IntersectSegment()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 150
diff changeset
89 const Vector& edgeFrom,
c5044bbfc303 CoordinateSystem3D::IntersectSegment()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 150
diff changeset
90 const Vector& edgeTo);
c5044bbfc303 CoordinateSystem3D::IntersectSegment()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 150
diff changeset
91
157
2309e8d86efe IntersectPlaneAndLine
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 156
diff changeset
92 bool IntersectPlaneAndLine(Vector& p,
2309e8d86efe IntersectPlaneAndLine
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 156
diff changeset
93 const Vector& normal,
2309e8d86efe IntersectPlaneAndLine
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 156
diff changeset
94 double d,
2309e8d86efe IntersectPlaneAndLine
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 156
diff changeset
95 const Vector& origin,
2309e8d86efe IntersectPlaneAndLine
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 156
diff changeset
96 const Vector& direction);
2309e8d86efe IntersectPlaneAndLine
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 156
diff changeset
97
189
964118e7e6de unit test for AlignVectorsWithRotation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 177
diff changeset
98 void AlignVectorsWithRotation(Matrix& r,
964118e7e6de unit test for AlignVectorsWithRotation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 177
diff changeset
99 const Vector& a,
964118e7e6de unit test for AlignVectorsWithRotation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 177
diff changeset
100 const Vector& b);
964118e7e6de unit test for AlignVectorsWithRotation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 177
diff changeset
101
177
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
102 inline float ComputeBilinearInterpolationUnitSquare(float x,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
103 float y,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
104 float f00, // source(0, 0)
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
105 float f01, // source(1, 0)
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
106 float f10, // source(0, 1)
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
107 float f11); // source(1, 1)
144
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
108
177
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
109 inline float ComputeTrilinearInterpolationUnitSquare(float x,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
110 float y,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
111 float z,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
112 float f000, // source(0, 0, 0)
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
113 float f001, // source(1, 0, 0)
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
114 float f010, // source(0, 1, 0)
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
115 float f011, // source(1, 1, 0)
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
116 float f100, // source(0, 0, 1)
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
117 float f101, // source(1, 0, 1)
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
118 float f110, // source(0, 1, 1)
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
119 float f111); // source(1, 1, 1)
0
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
120 };
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
121 }
144
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
122
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
123
177
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
124 float OrthancStone::GeometryToolbox::ComputeBilinearInterpolationUnitSquare(float x,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
125 float y,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
126 float f00,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
127 float f01,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
128 float f10,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
129 float f11)
144
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
130 {
177
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
131 // This function only works within the unit square
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
132 assert(x >= 0 && y >= 0 && x <= 1 && y <= 1);
144
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
133
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
134 // https://en.wikipedia.org/wiki/Bilinear_interpolation#Unit_square
175
15d92d93738b fix interpolation with negative coordinates
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 172
diff changeset
135 return (f00 * (1.0f - x) * (1.0f - y) +
15d92d93738b fix interpolation with negative coordinates
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 172
diff changeset
136 f01 * x * (1.0f - y) +
15d92d93738b fix interpolation with negative coordinates
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 172
diff changeset
137 f10 * (1.0f - x) * y +
15d92d93738b fix interpolation with negative coordinates
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 172
diff changeset
138 f11 * x * y);
144
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
139 }
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
140
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
141
177
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
142 float OrthancStone::GeometryToolbox::ComputeTrilinearInterpolationUnitSquare(float x,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
143 float y,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
144 float z,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
145 float f000,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
146 float f001,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
147 float f010,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
148 float f011,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
149 float f100,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
150 float f101,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
151 float f110,
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
152 float f111)
144
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
153 {
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
154 // "In practice, a trilinear interpolation is identical to two
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
155 // bilinear interpolation combined with a linear interpolation"
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
156 // https://en.wikipedia.org/wiki/Trilinear_interpolation#Method
177
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
157 float a = ComputeBilinearInterpolationUnitSquare(x, y, f000, f001, f010, f011);
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
158 float b = ComputeBilinearInterpolationUnitSquare(x, y, f100, f101, f110, f111);
144
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
159
177
83200c4d07ca fix interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 175
diff changeset
160 return (1.0f - z) * a + z * b;
144
9b83f30fc1c0 bilinear and trilinear interpolation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 140
diff changeset
161 }