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
|
/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkExtractDataOverTime.cxx,v $
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 "vtkExtractDataOverTime.h"
#include "vtkPointSet.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkDoubleArray.h"
#include "vtkStreamingDemandDrivenPipeline.h"
vtkCxxRevisionMacro(vtkExtractDataOverTime, "$Revision: 1.4 $");
vtkStandardNewMacro(vtkExtractDataOverTime);
//----------------------------------------------------------------------------
vtkExtractDataOverTime::vtkExtractDataOverTime()
{
this->NumberOfTimeSteps = 0;
this->CurrentTimeIndex = 0;
this->PointIndex = 0;
}
//----------------------------------------------------------------------------
void vtkExtractDataOverTime::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "Point Index: " << this->PointIndex << endl;
os << indent << "NumberOfTimeSteps: " << this->NumberOfTimeSteps << endl;
}
//----------------------------------------------------------------------------
int vtkExtractDataOverTime::RequestInformation(
vtkInformation *vtkNotUsed(request),
vtkInformationVector **vtkNotUsed(inputVector),
vtkInformationVector *outputVector)
{
vtkInformation *outInfo = outputVector->GetInformationObject(0);
if ( outInfo->Has(vtkStreamingDemandDrivenPipeline::TIME_STEPS()) )
{
this->NumberOfTimeSteps =
outInfo->Length( vtkStreamingDemandDrivenPipeline::TIME_STEPS() );
}
else
{
this->NumberOfTimeSteps = 0;
}
return 1;
}
//----------------------------------------------------------------------------
int vtkExtractDataOverTime::ProcessRequest(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
if(request->Has(vtkDemandDrivenPipeline::REQUEST_INFORMATION()))
{
return this->RequestInformation(request, inputVector, outputVector);
}
else if(request->Has(vtkStreamingDemandDrivenPipeline::REQUEST_UPDATE_EXTENT()))
{
// get the requested update extent
inputVector[0]->GetInformationObject(0)->Set(
vtkStreamingDemandDrivenPipeline::UPDATE_TIME_INDEX(), this->CurrentTimeIndex );
return 1;
}
// generate the data
else if(request->Has(vtkDemandDrivenPipeline::REQUEST_DATA()))
{
if (this->NumberOfTimeSteps == 0)
{
vtkErrorMacro("No Time steps in input time data!");
return 0;
}
// get the output data object
vtkInformation* outInfo = outputVector->GetInformationObject(0);
vtkPointSet *output =
vtkPointSet::SafeDownCast(outInfo->Get(vtkDataObject::DATA_OBJECT()));
// and input data object
vtkInformation* inInfo = inputVector[0]->GetInformationObject(0);
vtkPointSet *input =
vtkPointSet::SafeDownCast(inInfo->Get(vtkDataObject::DATA_OBJECT()));
// is this the first request
if (!this->CurrentTimeIndex)
{
// Tell the pipeline to start looping.
request->Set(vtkStreamingDemandDrivenPipeline::CONTINUE_EXECUTING(), 1);
this->AllocateOutputData(input, output);
}
// extract the actual data
output->GetPoints()->SetPoint( this->CurrentTimeIndex,
input->GetPoints()->GetPoint(this->PointIndex) );
output->GetPointData()->CopyData(input->GetPointData(), this->PointIndex,
this->CurrentTimeIndex);
if (input->GetPointData()->GetArray("Time"))
{
output->GetPointData()->GetArray("TimeData")->SetTuple1(
this->CurrentTimeIndex,
input->GetInformation()->Get(vtkDataObject::DATA_TIME()) );
}
else
{
output->GetPointData()->GetArray("Time")->SetTuple1(
this->CurrentTimeIndex,
input->GetInformation()->Get(vtkDataObject::DATA_TIME()) );
}
// increment the time index
this->CurrentTimeIndex++;
if (this->CurrentTimeIndex == this->NumberOfTimeSteps)
{
// Tell the pipeline to stop looping.
request->Remove(vtkStreamingDemandDrivenPipeline::CONTINUE_EXECUTING());
this->CurrentTimeIndex = 0;
}
return 1;
}
return this->Superclass::ProcessRequest(request, inputVector, outputVector);
}
//----------------------------------------------------------------------------
int vtkExtractDataOverTime::AllocateOutputData(vtkPointSet *input, vtkPointSet *output)
{
// by default vtkPointSetAlgorithm::RequestDataObject already
// created an output of the same type as the input
if (!output)
{
vtkErrorMacro("Output not created as expected!");
return 0;
}
// 1st the points
vtkPoints *points = output->GetPoints();
if (!points)
{
points = vtkPoints::New();
output->SetPoints( points );
points->Delete();
}
points->SetNumberOfPoints( this->NumberOfTimeSteps );
// now the point data
output->GetPointData()->CopyAllocate(input->GetPointData(), this->NumberOfTimeSteps);
// and finally add an array to hold the time at each step
vtkDoubleArray *timeArray = vtkDoubleArray::New();
timeArray->SetNumberOfComponents(1);
timeArray->SetNumberOfTuples(this->NumberOfTimeSteps);
if (input->GetPointData()->GetArray("Time"))
{
timeArray->SetName("TimeData");
}
else
{
timeArray->SetName("Time");
}
output->GetPointData()->AddArray(timeArray);
timeArray->Delete();
return 1;
}
|
