1 /*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: pipe1.cxx
5
6 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7 All rights reserved.
8 See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9
10 This software is distributed WITHOUT ANY WARRANTY; without even
11 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12 PURPOSE. See the above copyright notice for more information.
13
14 =========================================================================*/
15
16 #include "vtkCallbackCommand.h"
17 #include "vtkImageData.h"
18 #include "vtkOutputPort.h"
19 #include "vtkRTAnalyticSource.h"
20
21 #include "PipelineParallelism.h"
22
23 static float XFreq = 60;
24
25 // Increments XFreq of the synthetic source
IncrementXFreq(vtkObject * vtkNotUsed (caller),unsigned long vtkNotUsed (eventId),void * sr,void *)26 static void IncrementXFreq(
27 vtkObject* vtkNotUsed(caller), unsigned long vtkNotUsed(eventId), void* sr, void*)
28 {
29 vtkRTAnalyticSource* source1 = reinterpret_cast<vtkRTAnalyticSource*>(sr);
30 XFreq = XFreq + 10;
31 source1->SetXFreq(XFreq);
32 }
33
34 // Pipe 1 for PipelineParallelism.
35 // See PipelineParallelism.cxx for more information.
pipe1(vtkMultiProcessController * vtkNotUsed (controller),void * vtkNotUsed (arg))36 void pipe1(vtkMultiProcessController* vtkNotUsed(controller), void* vtkNotUsed(arg))
37 {
38 double extent = 20;
39 int iextent = static_cast<int>(extent);
40
41 // Synthetic image source.
42 vtkRTAnalyticSource* source1 = vtkRTAnalyticSource::New();
43 source1->SetWholeExtent(-1 * iextent, iextent, -1 * iextent, iextent, -1 * iextent, iextent);
44 source1->SetCenter(0, 0, 0);
45 source1->SetStandardDeviation(0.5);
46 source1->SetMaximum(255.0);
47 source1->SetXFreq(XFreq);
48 source1->SetXMag(10);
49 source1->SetYFreq(30);
50 source1->SetYMag(18);
51 source1->SetZFreq(40);
52 source1->SetZMag(5);
53 source1->GetOutput()->SetSpacing(2.0 / extent, 2.0 / extent, 2.0 / extent);
54
55 // Output port
56 vtkOutputPort* op = vtkOutputPort::New();
57 op->SetInputConnection(source1->GetOutputPort());
58 op->SetTag(11);
59
60 // Called every time data is requested from the output port
61 vtkCallbackCommand* cbc = vtkCallbackCommand::New();
62 cbc->SetCallback(IncrementXFreq);
63 cbc->SetClientData((void*)source1);
64 op->AddObserver(vtkCommand::EndEvent, cbc);
65 cbc->Delete();
66
67 // Process requests
68 op->WaitForUpdate();
69
70 // Cleanup
71 op->Delete();
72 source1->Delete();
73 }
74