forked from Kitware/VTK
-
Notifications
You must be signed in to change notification settings - Fork 0
/
vtkOpenVRHardwarePicker.cxx
138 lines (114 loc) · 3.51 KB
/
vtkOpenVRHardwarePicker.cxx
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
/*=========================================================================
Program: Visualization Toolkit
Module: vtkOpenVRHardwarePicker.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 "vtkOpenVRHardwarePicker.h"
#include "vtkCamera.h"
#include "vtkCommand.h"
#include "vtkDataObject.h"
#include "vtkHardwareSelector.h"
#include "vtkObjectFactory.h"
#include "vtkOpenVRRenderWindow.h"
#include "vtkOpenVRRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkSelection.h"
// #include "vtkAssemblyNode.h"
// #include "vtkAssemblyPath.h"
// #include "vtkRenderer.h"
// #include "vtkMath.h"
// #include "vtkCamera.h"
// #include "vtkBox.h"
// #include "vtkRenderWindow.h"
// #include "vtkRenderWindowInteractor3D.h"
// #include "vtkTransform.h"
vtkStandardNewMacro(vtkOpenVRHardwarePicker);
vtkOpenVRHardwarePicker::vtkOpenVRHardwarePicker()
{
this->Selection = nullptr;
}
vtkOpenVRHardwarePicker::~vtkOpenVRHardwarePicker()
{
if (this->Selection)
{
this->Selection->Delete();
}
}
// set up for a pick
void vtkOpenVRHardwarePicker::Initialize()
{
this->vtkAbstractPropPicker::Initialize();
}
// Pick from the given collection
int vtkOpenVRHardwarePicker::PickProp(
double p0[3], double wxyz[4],
vtkRenderer *renderer, vtkPropCollection*)
{
// Initialize picking process
this->Initialize();
this->Renderer = renderer;
// Invoke start pick method if defined
this->InvokeEvent(vtkCommand::StartPickEvent, nullptr);
vtkOpenVRRenderWindow* renWin =
vtkOpenVRRenderWindow::SafeDownCast(renderer->GetRenderWindow());
if (!renWin)
{
return 0;
}
vtkNew<vtkHardwareSelector> sel;
sel->SetFieldAssociation(vtkDataObject::FIELD_ASSOCIATION_CELLS);
sel->SetRenderer(renderer);
vtkCamera *oldcam = renderer->GetActiveCamera();
renWin->SetTrackHMD(false);
vtkNew<vtkTransform > tran;
tran->RotateWXYZ(wxyz[0], wxyz[1], wxyz[2], wxyz[3]);
double pin[4] = {0.0, 0.0, -1.0, 1.0};
double dop[4];
tran->MultiplyPoint(pin, dop);
double distance = oldcam->GetDistance();
oldcam->SetPosition(p0);
oldcam->SetFocalPoint(p0[0] + dop[0]*distance,
p0[1] + dop[1]*distance,
p0[2] + dop[2]*distance);
oldcam->OrthogonalizeViewUp();
int *size = renderer->GetSize();
sel->SetArea(size[0]/2 - 5, size[1]/2 - 5, size[0]/2 + 5, size[1]/2 + 5);
if (this->Selection)
{
this->Selection->Delete();
}
this->Selection = nullptr;
if (sel->CaptureBuffers())
{
unsigned int outPos[2];
unsigned int inPos[2] = {size[0]/2, size[1]/2};
// find the data closest to the center
vtkHardwareSelector::PixelInformation pinfo =
sel->GetPixelInformation(inPos, 5, outPos);
if (pinfo.Valid)
{
this->Selection = sel->GenerateSelection(outPos[0], outPos[1], outPos[0], outPos[1]);
}
}
// this->Selection = sel->Select();
// sel->SetArea(0, 0, size[0]-1, size[1]-1);
renWin->SetTrackHMD(true);
this->InvokeEvent(vtkCommand::EndPickEvent, this->Selection);
if (this->Selection && this->Selection->GetNode(0))
{
return 1;
}
else
{
return 0;
}
}
void vtkOpenVRHardwarePicker::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}