Skip to content
Navigation Menu
{{ message }}
forked from nmwsharp/polyscope
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathsurface_vector_quantity.cpp
More file actions
284 lines (211 loc) · 9.68 KB
/
Copy pathsurface_vector_quantity.cpp
File metadata and controls
284 lines (211 loc) · 9.68 KB
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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
// Copyright 2017-2023, Nicholas Sharp and the Polyscope contributors. https://polyscope.run
#include "polyscope/surface_vector_quantity.h"
#include "polyscope/file_helpers.h"
#include "polyscope/polyscope.h"
#include "polyscope/render/engine.h"
#include "imgui.h"
#include <complex>
#include <fstream>
#include <iostream>
namespace polyscope {
SurfaceVectorQuantity::SurfaceVectorQuantity(std::string name, SurfaceMesh& mesh_, MeshElement definedOn_)
: SurfaceMeshQuantity(name, mesh_) {}
// ========================================================
// ========== Vertex Vector ==========
// ========================================================
SurfaceVertexVectorQuantity::SurfaceVertexVectorQuantity(std::string name, std::vector<glm::vec3> vectors_,
SurfaceMesh& mesh_, VectorType vectorType_)
: SurfaceVectorQuantity(name, mesh_, MeshElement::VERTEX),
VectorQuantity<SurfaceVertexVectorQuantity>(*this, vectors_, parent.vertexPositions, vectorType_) {}
void SurfaceVertexVectorQuantity::refresh() {
refreshVectors();
Quantity::refresh();
}
void SurfaceVertexVectorQuantity::draw() {
if (!isEnabled()) return;
drawVectors();
}
void SurfaceVertexVectorQuantity::buildCustomUI() { buildVectorUI(); }
void SurfaceVertexVectorQuantity::buildVertexInfoGUI(size_t iV) {
ImGui::TextUnformatted(name.c_str());
ImGui::NextColumn();
glm::vec3 vec = vectors.getValue(iV);
std::stringstream buffer;
buffer << vec;
ImGui::TextUnformatted(buffer.str().c_str());
ImGui::NextColumn();
ImGui::NextColumn();
ImGui::Text("magnitude: %g", glm::length(vec));
ImGui::NextColumn();
}
std::string SurfaceVertexVectorQuantity::niceName() { return name + " (vertex vector)"; }
// ========================================================
// ========== Face Vector ==========
// ========================================================
SurfaceFaceVectorQuantity::SurfaceFaceVectorQuantity(std::string name, std::vector<glm::vec3> vectors_,
SurfaceMesh& mesh_, VectorType vectorType_)
: SurfaceVectorQuantity(name, mesh_, MeshElement::FACE),
VectorQuantity<SurfaceFaceVectorQuantity>(*this, vectors_, parent.faceCenters, vectorType_) {}
void SurfaceFaceVectorQuantity::refresh() {
refreshVectors();
Quantity::refresh();
}
void SurfaceFaceVectorQuantity::draw() {
if (!isEnabled()) return;
drawVectors();
}
void SurfaceFaceVectorQuantity::buildCustomUI() { buildVectorUI(); }
void SurfaceFaceVectorQuantity::buildFaceInfoGUI(size_t iF) {
ImGui::TextUnformatted(name.c_str());
ImGui::NextColumn();
glm::vec3 vec = vectors.getValue(iF);
std::stringstream buffer;
buffer << vec;
ImGui::TextUnformatted(buffer.str().c_str());
ImGui::NextColumn();
ImGui::NextColumn();
ImGui::Text("magnitude: %g", glm::length(vec));
ImGui::NextColumn();
}
std::string SurfaceFaceVectorQuantity::niceName() { return name + " (face vector)"; }
// ========================================================
// ========== Tangent Face Vector ==========
// ========================================================
SurfaceFaceTangentVectorQuantity::SurfaceFaceTangentVectorQuantity(std::string name, std::vector<glm::vec2> vectors_,
std::vector<glm::vec3> basisX_,
std::vector<glm::vec3> basisY_, SurfaceMesh& mesh_,
int nSym_, VectorType vectorType_)
: SurfaceVectorQuantity(name, mesh_, MeshElement::FACE),
TangentVectorQuantity<SurfaceFaceTangentVectorQuantity>(*this, vectors_, basisX_, basisY_, parent.faceCenters,
nSym_, vectorType_) {}
void SurfaceFaceTangentVectorQuantity::refresh() {
refreshVectors();
Quantity::refresh();
}
void SurfaceFaceTangentVectorQuantity::draw() {
if (!isEnabled()) return;
drawVectors();
}
void SurfaceFaceTangentVectorQuantity::buildCustomUI() { buildVectorUI(); }
void SurfaceFaceTangentVectorQuantity::buildFaceInfoGUI(size_t iF) {
ImGui::TextUnformatted(name.c_str());
ImGui::NextColumn();
glm::vec2 vec = tangentVectors.getValue(iF);
std::stringstream buffer;
buffer << vec;
ImGui::TextUnformatted(buffer.str().c_str());
ImGui::NextColumn();
ImGui::NextColumn();
ImGui::Text("magnitude: %g", glm::length(vec));
ImGui::NextColumn();
}
std::string SurfaceFaceTangentVectorQuantity::niceName() {
if (nSym == 1) {
return name + " (face tangent vector)";
} else {
return name + " (face tangent vector sym=" + std::to_string(nSym) + ")";
}
}
// ========================================================
// ========== Tangent Vertex Vector ==========
// ========================================================
SurfaceVertexTangentVectorQuantity::SurfaceVertexTangentVectorQuantity(
std::string name, std::vector<glm::vec2> vectors_, std::vector<glm::vec3> basisX_, std::vector<glm::vec3> basisY_,
SurfaceMesh& mesh_, int nSym_, VectorType vectorType_)
: SurfaceVectorQuantity(name, mesh_, MeshElement::VERTEX),
TangentVectorQuantity<SurfaceVertexTangentVectorQuantity>(*this, vectors_, basisX_, basisY_,
parent.vertexPositions, nSym_, vectorType_) {}
void SurfaceVertexTangentVectorQuantity::refresh() {
refreshVectors();
Quantity::refresh();
}
void SurfaceVertexTangentVectorQuantity::draw() {
if (!isEnabled()) return;
drawVectors();
}
void SurfaceVertexTangentVectorQuantity::buildCustomUI() { buildVectorUI(); }
void SurfaceVertexTangentVectorQuantity::buildVertexInfoGUI(size_t iV) {
ImGui::TextUnformatted(name.c_str());
ImGui::NextColumn();
glm::vec2 vec = tangentVectors.getValue(iV);
std::stringstream buffer;
buffer << vec;
ImGui::TextUnformatted(buffer.str().c_str());
ImGui::NextColumn();
ImGui::NextColumn();
ImGui::Text("magnitude: %g", glm::length(vec));
ImGui::NextColumn();
}
std::string SurfaceVertexTangentVectorQuantity::niceName() {
if (nSym == 1) {
return name + " (vertex tangent vector)";
} else {
return name + " (vertex tangent vector sym=" + std::to_string(nSym) + ")";
}
}
// ========================================================
// ========== Tangent One Form ============
// ========================================================
namespace {
// helper function used below
std::vector<glm::vec2> oneFormToFaceTangentVectors(SurfaceMesh& mesh, const std::vector<float>& oneForm,
std::vector<char>& canonicalOrientation) {
mesh.vertexPositions.ensureHostBufferPopulated();
mesh.faceAreas.ensureHostBufferPopulated();
mesh.faceNormals.ensureHostBufferPopulated();
mesh.defaultFaceTangentBasisX.ensureHostBufferPopulated();
mesh.defaultFaceTangentBasisY.ensureHostBufferPopulated();
mesh.triangleAllEdgeInds.ensureHostBufferPopulated();
std::vector<glm::vec2> mappedVectorField(mesh.nFaces());
for (size_t iF = 0; iF < mesh.nFaces(); iF++) {
std::array<float, 3> formValues;
std::array<glm::vec3, 3> vecValues;
for (size_t j = 0; j < 3; j++) {
size_t vA = mesh.triangleVertexInds.data[3 * iF + j];
size_t vB = mesh.triangleVertexInds.data[3 * iF + ((j + 1) % 3)];
size_t iE = mesh.triangleAllEdgeInds.data[9 * iF + j];
bool isCanonicalOriented = (vB > vA) != (canonicalOrientation[iE]); // TODO double check convention
float orientationSign = isCanonicalOriented ? 1.f : -1.f;
formValues[j] = orientationSign * oneForm[iE];
glm::vec3 heVec = mesh.vertexPositions.data[vB] - mesh.vertexPositions.data[vA];
vecValues[j] = glm::cross(heVec, mesh.faceNormals.data[iF]);
}
// Whitney interpolation at center
glm::vec3 result{0., 0., 0.};
for (int j = 0; j < 3; j++) {
result += (formValues[(j + 1) % 3] - formValues[(j + 2) % 3]) * vecValues[j];
}
result /= static_cast<float>(6. * mesh.faceAreas.data[iF]);
glm::vec2 approxVec{glm::dot(result, mesh.defaultFaceTangentBasisX.data[iF]),
glm::dot(result, mesh.defaultFaceTangentBasisY.data[iF])};
mappedVectorField[iF] = approxVec;
}
return mappedVectorField;
}
} // namespace
SurfaceOneFormTangentVectorQuantity::SurfaceOneFormTangentVectorQuantity(std::string name, std::vector<float> oneForm_,
std::vector<char> canonicalOrientation_,
SurfaceMesh& mesh_)
: SurfaceVectorQuantity(name, mesh_, MeshElement::FACE),
TangentVectorQuantity<SurfaceOneFormTangentVectorQuantity>(
*this, oneFormToFaceTangentVectors(mesh_, oneForm_, canonicalOrientation_),
mesh_.defaultFaceTangentBasisX.getPopulatedHostBufferRef(),
mesh_.defaultFaceTangentBasisY.getPopulatedHostBufferRef(), parent.faceCenters, 1, VectorType::STANDARD),
oneForm(oneForm_), canonicalOrientation(canonicalOrientation_) {}
void SurfaceOneFormTangentVectorQuantity::refresh() {
refreshVectors();
Quantity::refresh();
}
void SurfaceOneFormTangentVectorQuantity::draw() {
if (!isEnabled()) return;
drawVectors();
}
void SurfaceOneFormTangentVectorQuantity::buildCustomUI() { buildVectorUI(); }
void SurfaceOneFormTangentVectorQuantity::buildEdgeInfoGUI(size_t iE) {
ImGui::TextUnformatted(name.c_str());
ImGui::NextColumn();
ImGui::Text("%g", oneForm[iE]);
ImGui::NextColumn();
}
std::string SurfaceOneFormTangentVectorQuantity::niceName() { return name + " (1-form tangent vector)"; }
} // namespace polyscope
You can’t perform that action at this time.