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
|
/* -------------------------------------------------------------------------- *
* Simbody(tm): SimTKcommon *
* -------------------------------------------------------------------------- *
* This is part of the SimTK biosimulation toolkit originating from *
* Simbios, the NIH National Center for Physics-Based Simulation of *
* Biological Structures at Stanford, funded under the NIH Roadmap for *
* Medical Research, grant U54 GM072970. See https://simtk.org/home/simbody. *
* *
* Portions copyright (c) 2008-12 Stanford University and the Authors. *
* Authors: Peter Eastman *
* Contributors: *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); you may *
* not use this file except in compliance with the License. You may obtain a *
* copy of the License at http://www.apache.org/licenses/LICENSE-2.0. *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* -------------------------------------------------------------------------- */
#include "SimTKcommon.h"
#include <iostream>
#define ASSERT(cond) {SimTK_ASSERT_ALWAYS(cond, "Assertion failed");}
using std::cout;
using std::endl;
using namespace SimTK;
using namespace std;
void testCreateMesh() {
PolygonalMesh mesh;
ASSERT(mesh.getNumFaces() == 0);
ASSERT(mesh.getNumVertices() == 0);
ASSERT(mesh.addVertex(Vec3(0)) == 0);
ASSERT(mesh.addVertex(Vec3(0, 1, 0)) == 1);
ASSERT(mesh.addVertex(Vec3(0, 0, 1)) == 2);
Array_<int> v;
v.push_back(1);
v.push_back(2);
v.push_back(0);
ASSERT(mesh.addFace(v) == 0);
ASSERT(mesh.getNumFaces() == 1);
ASSERT(mesh.getNumVertices() == 3);
ASSERT(mesh.getFaceVertex(0, 0) == 1);
ASSERT(mesh.getFaceVertex(0, 1) == 2);
ASSERT(mesh.getFaceVertex(0, 2) == 0);
ASSERT(mesh.getVertexPosition(0) == Vec3(0));
ASSERT(mesh.getVertexPosition(1) == Vec3(0, 1, 0));
ASSERT(mesh.getVertexPosition(2) == Vec3(0, 0, 1));
// Make sure copy and assignment are shallow.
PolygonalMesh mesh2(mesh); // shallow copy construction
ASSERT(&mesh2.getImpl() == &mesh.getImpl());
ASSERT(mesh.getImplHandleCount()==2);
PolygonalMesh mesh3;
mesh3 = mesh; // shallow assignment
ASSERT(&mesh3.getImpl() == &mesh.getImpl());
ASSERT(mesh.getImplHandleCount()==3);
PolygonalMesh mesh4;
mesh4.copyAssign(mesh); // deep copy
ASSERT(mesh4.getNumVertices() == mesh.getNumVertices());
ASSERT(&mesh4.getImpl() != &mesh.getImpl());
ASSERT(mesh4.getImplHandleCount()==1);
ASSERT(mesh.getImplHandleCount()==3);
}
void testLoadObjFile() {
string file;
file += "# This is a comment\n";
file += "v -1.0 1.0 2.0\n";
file += "v -2.0 2.0 3.0\n";
file += "v -3.0 3.0 \\\n";
file += "4.0\n";
file += "v -4.0 4.0 5.0\n";
file += "v -5.0 5.0 6.0\n";
file += "f 1 2 3\n";
file += "f 2// 3/4/5 4//2\n";
file += "f -3 -2/3/4 -1\n";
file += "f 1 3\\\n";
file += "5 2\n";
PolygonalMesh mesh;
stringstream stream(file);
mesh.loadObjFile(stream);
ASSERT(mesh.getNumVertices() == 5);
ASSERT(mesh.getNumFaces() == 4);
for (int i = 0; i < mesh.getNumVertices(); i++) {
const Vec3& pos = mesh.getVertexPosition(i);
ASSERT(pos[0] == -(i+1));
ASSERT(pos[1] == i+1);
ASSERT(pos[2] == i+2);
}
for (int i = 0; i < 3; i++) {
ASSERT(mesh.getNumVerticesForFace(i) == 3);
ASSERT(mesh.getFaceVertex(i, 0) == i);
ASSERT(mesh.getFaceVertex(i, 1) == i+1);
ASSERT(mesh.getFaceVertex(i, 2) == i+2);
}
ASSERT(mesh.getNumVerticesForFace(3) == 4);
ASSERT(mesh.getFaceVertex(3, 0) == 0);
ASSERT(mesh.getFaceVertex(3, 1) == 2);
ASSERT(mesh.getFaceVertex(3, 2) == 4);
ASSERT(mesh.getFaceVertex(3, 3) == 1);
}
int main() {
try {
testCreateMesh();
testLoadObjFile();
} catch(const std::exception& e) {
cout << "exception: " << e.what() << endl;
return 1;
}
cout << "Done" << endl;
return 0;
}
|
