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
|
/*=========================================================================
Program: Visualization Toolkit
Module: TestReadDuplicateDataArrayNames.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include <vtkPointData.h>
#include <vtkSmartPointer.h>
#include <vtkTestUtilities.h>
#include <vtkUnstructuredGrid.h>
#include <vtkXMLUnstructuredGridReader.h>
#include <vtkXMLWriterC.h>
#include <cmath>
#include <fstream>
#define NPOINTS 8
#define NTIMESTEPS 8
#define VTK_EPSILON 1.e-6
void generateDataSetWithTimesteps(std::string filename)
{
int i,j;
{
vtkXMLWriterC* writer = vtkXMLWriterC_New();
float points[3*NPOINTS] = {0, 0, 0,
1, 0, 0,
1, 1, 0,
0, 1, 0,
0, 0, 1,
1, 0, 1,
1, 1, 1,
0, 1, 1 };
vtkIdType cellarray[] = {8, 0, 1, 2, 3, 4, 5, 6, 7};
float pointdata[NTIMESTEPS][NPOINTS];
/* Give different values for the pointdata: */
for(i=0;i<NTIMESTEPS;i++)
{
for(j=0; j<NPOINTS;j++)
{
pointdata[i][j] = (float)i;
}
}
/* #define VTK_UNSTRUCTURED_GRID 4 */
vtkXMLWriterC_SetDataObjectType(writer, 4);
vtkXMLWriterC_SetFileName(writer, filename.c_str() );
/* #define VTK_FLOAT 10 */
vtkXMLWriterC_SetPoints(writer, 10, points, NPOINTS);
/* #define VTK_HEXAHEDRON 12 */
vtkXMLWriterC_SetCellsWithType(writer, 12, 1, cellarray, 1+NPOINTS);
/* for all timesteps: */
vtkXMLWriterC_SetNumberOfTimeSteps(writer, NTIMESTEPS);
vtkXMLWriterC_Start(writer);
for(i=0; i<NTIMESTEPS; i++)
{
/* #define VTK_FLOAT 10 */
vtkXMLWriterC_SetPointData(writer, "example data", 10, pointdata[i],
NPOINTS, 1, "SCALARS");
vtkXMLWriterC_WriteNextTimeStep(writer, i);
}
vtkXMLWriterC_Stop(writer);
vtkXMLWriterC_Delete(writer);
}
}
void generateDataSetWithDuplicateArrayNames(std::string filename)
{
std::string dataSet =
"<VTKFile type=\"UnstructuredGrid\" version=\"0.1\" byte_order=\"LittleEndian\">\n"
"<UnstructuredGrid>\n"
" <Piece NumberOfPoints=\"4\" NumberOfCells=\"1\">\n"
" <PointData Scalars=\"scalars\">\n"
" <DataArray type=\"Float32\" Name=\"test123\" format=\"ascii\">\n"
" 0.0 1.0 2.0 3.0 \n"
" <DataArray type=\"Float32\" Name=\"test123\" format=\"ascii\">\n"
" 0.1 0.2 0.3 0.4\n"
" </DataArray>\n"
" </DataArray>\n"
" </PointData>\n"
" <Points>\n"
" <DataArray type=\"Float32\" NumberOfComponents=\"3\" format=\"ascii\">\n"
" 0 0 0 0 0 1 0 1 0 1 0 0\n"
" </DataArray>\n"
" </Points>\n"
" <Cells>\n"
" <DataArray type=\"Int32\" Name=\"connectivity\" format=\"ascii\">\n"
" 0 1 2 3\n"
" </DataArray>\n"
" <DataArray type=\"Int32\" Name=\"offsets\" format=\"ascii\">\n"
" 4\n"
" </DataArray>\n"
" <DataArray type=\"UInt8\" Name=\"types\" format=\"ascii\">\n"
" 10\n"
" </DataArray>\n"
" </Cells>\n"
" </Piece>\n"
"</UnstructuredGrid>\n"
"</VTKFile>";
ofstream myfile;
myfile.open (filename.c_str());
myfile << dataSet;
myfile.close();
}
int TestReadDuplicateDataArrayNames(int argc, char* argv[])
{
// These tests are designed to ensure that point/cell data arrays with the
// same name are handled appropriately by the xml reader. The first test
// creates multiple data arrays that have the same name but differ in
// timestep. We test that the different timesteps are accessible. The second
// test creates two data arrays that have the same name and no timestep
// affiliation. In this case, we ensure that the reader reads the first data
// array without crashing.
char* temp_dir_c =
vtkTestUtilities::GetArgOrEnvOrDefault("-T", argc, argv,
"VTK_TEMP_DIR",
"Testing/Temporary");
std::string temp_dir = std::string(temp_dir_c);
delete [] temp_dir_c;
if (temp_dir.empty())
{
std::cerr << "Could not determine temporary directory." << std::endl;
return EXIT_FAILURE;
}
std::string filename = temp_dir + "/duplicateArrayNames.vtu";
// Test 1
{
generateDataSetWithTimesteps(filename);
vtkSmartPointer<vtkXMLUnstructuredGridReader> reader =
vtkSmartPointer<vtkXMLUnstructuredGridReader>::New();
reader->SetFileName(filename.c_str());
for ( int i = 0; i < NTIMESTEPS; i++ )
{
reader->SetTimeStep(i);
reader->Update();
vtkUnstructuredGrid* ugrid = reader->GetOutput();
double d = ugrid->GetPointData()->GetScalars()->GetTuple1(0);
if (std::abs(static_cast<double>((d-static_cast<double>(i)))) > VTK_EPSILON)
{
std::cerr << "Different timesteps were not correctly read." << std::endl;
return EXIT_FAILURE;
}
}
}
// Test 2
{
generateDataSetWithDuplicateArrayNames(filename);
vtkSmartPointer<vtkXMLUnstructuredGridReader> reader =
vtkSmartPointer<vtkXMLUnstructuredGridReader>::New();
reader->SetFileName(filename.c_str());
reader->Update();
vtkUnstructuredGrid* ugrid = reader->GetOutput();
for (int i = 0; i < 4; i++)
{
double d = ugrid->GetPointData()->GetScalars("test123")->GetTuple1(i);
std::cout<<d<<std::endl;
if (std::abs(static_cast<double>((d-static_cast<double>(i)))) > VTK_EPSILON)
{
std::cerr << "The first array with degenerate naming was not correctly read." << std::endl;
return EXIT_FAILURE;
}
}
}
return EXIT_SUCCESS;
}
|
