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
|
/*=========================================================================
Program: Visualization Toolkit
Module: vtkTableToStructuredGrid.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 "vtkTableToStructuredGrid.h"
#include "vtkDoubleArray.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkPoints.h"
#include "vtkStreamingDemandDrivenPipeline.h"
#include "vtkTable.h"
vtkStandardNewMacro(vtkTableToStructuredGrid);
//----------------------------------------------------------------------------
vtkTableToStructuredGrid::vtkTableToStructuredGrid()
{
this->XColumn = 0;
this->YColumn = 0;
this->ZColumn = 0;
this->XComponent = 0;
this->YComponent = 0;
this->ZComponent = 0;
this->WholeExtent[0] = this->WholeExtent[1] = this->WholeExtent[2] =
this->WholeExtent[3] = this->WholeExtent[4] = this->WholeExtent[5] = 0;
}
//----------------------------------------------------------------------------
vtkTableToStructuredGrid::~vtkTableToStructuredGrid()
{
this->SetXColumn(0);
this->SetYColumn(0);
this->SetZColumn(0);
}
//----------------------------------------------------------------------------
int vtkTableToStructuredGrid::FillInputPortInformation(
int vtkNotUsed(port), vtkInformation* info)
{
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkTable");
return 1;
}
// ----------------------------------------------------------------------------
int vtkTableToStructuredGrid::RequestInformation(
vtkInformation *vtkNotUsed(request),
vtkInformationVector **vtkNotUsed(inputVector),
vtkInformationVector *outputVector)
{
// get the info objects
vtkInformation *outInfo = outputVector->GetInformationObject(0);
outInfo->Set(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),
this->WholeExtent, 6);
return 1;
}
//----------------------------------------------------------------------------
int vtkTableToStructuredGrid::RequestData(
vtkInformation* vtkNotUsed(request), vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
vtkStructuredGrid* output = vtkStructuredGrid::GetData(outputVector, 0);
vtkTable* input = vtkTable::GetData(inputVector[0], 0);
vtkStreamingDemandDrivenPipeline *sddp =
vtkStreamingDemandDrivenPipeline::SafeDownCast(this->GetExecutive());
int extent[6];
sddp->GetOutputInformation(0)->Get(
vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(), extent);
return this->Convert(input, output, extent);
}
//----------------------------------------------------------------------------
int vtkTableToStructuredGrid::Convert(vtkTable* input,
vtkStructuredGrid* output, int extent[6])
{
int num_values = (extent[1] - extent[0] + 1) *
(extent[3] - extent[2] + 1) *
(extent[5] - extent[4] + 1);
if (input->GetNumberOfRows() != num_values)
{
vtkErrorMacro("The input table must have exactly " << num_values
<< " rows. Currently it has " << input->GetNumberOfRows() << " rows.");
return 0;
}
vtkDataArray* xarray = vtkArrayDownCast<vtkDataArray>(
input->GetColumnByName(this->XColumn));
vtkDataArray* yarray = vtkArrayDownCast<vtkDataArray>(
input->GetColumnByName(this->YColumn));
vtkDataArray* zarray = vtkArrayDownCast<vtkDataArray>(
input->GetColumnByName(this->ZColumn));
if (!xarray || !yarray || !zarray)
{
vtkErrorMacro("Failed to locate the columns to use for the point"
" coordinates");
return 0;
}
vtkPoints* newPoints = vtkPoints::New();
if (xarray == yarray && yarray == zarray &&
this->XComponent == 0 &&
this->YComponent == 1 &&
this->ZComponent == 2 &&
xarray->GetNumberOfComponents() == 3)
{
newPoints->SetData(xarray);
}
else
{
// Ideally we determine the smallest data type that can contain the values
// in all the 3 arrays. For now I am just going with doubles.
vtkDoubleArray* newData = vtkDoubleArray::New();
newData->SetNumberOfComponents(3);
newData->SetNumberOfTuples(input->GetNumberOfRows());
vtkIdType numtuples = newData->GetNumberOfTuples();
for (vtkIdType cc=0; cc < numtuples; cc++)
{
newData->SetComponent(cc, 0, xarray->GetComponent(cc, this->XComponent));
newData->SetComponent(cc, 1, yarray->GetComponent(cc, this->YComponent));
newData->SetComponent(cc, 2, zarray->GetComponent(cc, this->ZComponent));
}
newPoints->SetData(newData);
newData->Delete();
}
output->SetExtent(extent);
output->SetPoints(newPoints);
newPoints->Delete();
// Add all other columns as point data.
for (int cc=0; cc < input->GetNumberOfColumns(); cc++)
{
vtkAbstractArray* arr = input->GetColumn(cc);
if (arr != xarray && arr != yarray && arr != zarray)
{
output->GetPointData()->AddArray(arr);
}
}
return 1;
}
//----------------------------------------------------------------------------
void vtkTableToStructuredGrid::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "WholeExtent: "
<< this->WholeExtent[0] << ", "
<< this->WholeExtent[1] << ", "
<< this->WholeExtent[2] << ", "
<< this->WholeExtent[3] << ", "
<< this->WholeExtent[4] << ", "
<< this->WholeExtent[5] << endl;
os << indent << "XColumn: "
<< (this->XColumn? this->XColumn : "(none)") << endl;
os << indent << "XComponent: " << this->XComponent << endl;
os << indent << "YColumn: "
<< (this->YColumn? this->YColumn : "(none)") << endl;
os << indent << "YComponent: " << this->YComponent << endl;
os << indent << "ZColumn: "
<< (this->ZColumn? this->ZColumn : "(none)") << endl;
os << indent << "ZComponent: " << this->ZComponent << endl;
}
|
