0026511: Build fails with VTK 6.3rc1
[occt.git] / src / IVtkVTK / IVtkVTK_View.cxx
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913a4c4a 1// Created on: 2011-10-14
2// Created by: Roman KOZLOV
3// Copyright (c) 2011-2014 OPEN CASCADE SAS
4//
5// This file is part of Open CASCADE Technology software library.
6//
7// This library is free software; you can redistribute it and/or modify it under
8// the terms of the GNU Lesser General Public License version 2.1 as published
9// by the Free Software Foundation, with special exception defined in the file
10// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
11// distribution for complete text of the license and disclaimer of any warranty.
12//
13// Alternatively, this file may be used under the terms of Open CASCADE
14// commercial license or contractual agreement.
15
16
17#include <IVtkVTK_View.hxx>
18#include <vtkAutoInit.h>
19#include <vtkCamera.h>
20#include <vtkRenderer.h>
f751596e 21#include <vtkRenderWindow.h>
913a4c4a 22#include <vtkTransform.h>
23
92efcf78 24IMPLEMENT_STANDARD_RTTIEXT(IVtkVTK_View,IVtk_IView)
25
913a4c4a 26// Initialization of VTK object factories.
27// Since VTK 6 the factory methods require "auto-initialization" depending on
28// what modules are enabled at VTK configure time.
29// Some defines are needed in order to make the factories work properly.
30VTK_MODULE_INIT(vtkRenderingOpenGL);
31VTK_MODULE_INIT(vtkInteractionStyle);
32
33// Handle implementation
ec357c5c 34
913a4c4a 35
36//================================================================
37// Function : Constructor
38// Purpose :
39//================================================================
40IVtkVTK_View::IVtkVTK_View (vtkRenderer* theRenderer)
41: myRenderer (theRenderer)
42{ }
43
44//================================================================
45// Function : Destructor
46// Purpose :
47//================================================================
48IVtkVTK_View::~IVtkVTK_View()
49{ }
50
51//================================================================
52// Function : IsPerspective
53// Purpose :
54//================================================================
55bool IVtkVTK_View::IsPerspective() const
56{
57 return !myRenderer->GetActiveCamera()->GetParallelProjection();
58}
59
60//================================================================
61// Function : GetDistance
62// Purpose :
63//================================================================
64double IVtkVTK_View::GetDistance() const
65{
66 return myRenderer->GetActiveCamera()->GetDistance();
67}
68
69//================================================================
70// Function : GetPosition
71// Purpose :
72//================================================================
73void IVtkVTK_View::GetPosition (double& theX, double& theY, double& theZ) const
74{
75 myRenderer->GetActiveCamera()->GetFocalPoint (theX, theY, theZ);
76}
77
78//================================================================
79// Function : GetViewUp
80// Purpose :
81//================================================================
82void IVtkVTK_View::GetViewUp (double& theDx, double& theDy, double& theDz) const
83{
84 myRenderer->GetActiveCamera()->OrthogonalizeViewUp();
85 myRenderer->GetActiveCamera()->GetViewUp (theDx, theDy, theDz);
86}
87
88//================================================================
89// Function : GetDirectionOfProjection
90// Purpose :
91//================================================================
92void IVtkVTK_View::GetDirectionOfProjection (double& theDx,
93 double& theDy,
94 double& theDz) const
95{
96 myRenderer->GetActiveCamera()->GetDirectionOfProjection (theDx, theDy, theDz);
97 theDx = -theDx;
98 theDy = -theDy;
99 theDz = -theDz;
100}
101
102//================================================================
103// Function : GetScale
104// Purpose :
105//================================================================
106void IVtkVTK_View::GetScale (double& theX, double& theY, double& theZ) const
107{
108 double aScale[3];
109 myRenderer->GetActiveCamera()->GetViewTransformObject()->GetScale (aScale);
110 theX = aScale[0];
111 theY = aScale[1];
112 theZ = aScale[2];
113}
114
115//================================================================
116// Function : GetParallelScale
117// Purpose :
118//================================================================
119double IVtkVTK_View::GetParallelScale() const
120{
121 return myRenderer->GetActiveCamera()->GetParallelScale();
122}
123
124//================================================================
125// Function : GetViewAngle
126// Purpose :
127//================================================================
128double IVtkVTK_View::GetViewAngle() const
129{
130 return myRenderer->GetActiveCamera()->GetViewAngle();
131}
132
133//================================================================
134// Function : GetViewCenter
135// Purpose :
136//================================================================
137void IVtkVTK_View::GetViewCenter (double& theX, double& theY) const
138{
139 double* aCenter = myRenderer->GetCenter();
140 theX = aCenter[0];
141 theY = aCenter[1];
142}
143
144//================================================================
145// Function : DisplayToWorld
146// Purpose :
147//================================================================
148bool IVtkVTK_View::DisplayToWorld (const gp_XY& theDisplayPnt, gp_XYZ& theWorldPnt) const
149{
150 // Convert the selection point into world coordinates.
151 myRenderer->SetDisplayPoint (theDisplayPnt.X(), theDisplayPnt.Y(), 0.0);
152 myRenderer->DisplayToWorld();
153
5ca413ce 154 double* const aCoords = myRenderer->GetWorldPoint();
913a4c4a 155 if (aCoords[3] == 0.0) // Point at infinity in homogeneous coordinates
156 {
157 return false;
158 }
159
160 theWorldPnt = gp_XYZ (aCoords[0] / aCoords[3], aCoords[1] / aCoords[3], aCoords[2] / aCoords[3]);
161
162 return true;
163}
f751596e 164
165//================================================================
166// Function : GetWindowSize
167// Purpose :
168//================================================================
169void IVtkVTK_View::GetWindowSize (int& theX, int& theY) const
170{
171 int* aSize = myRenderer->GetRenderWindow()->GetSize();
172 theX = aSize[0];
173 theY = aSize[1];
174}
175
176//================================================================
177// Function : GetCamera
178// Purpose :
179//================================================================
180void IVtkVTK_View::GetCamera (Graphic3d_Mat4d& theProj,
181 Graphic3d_Mat4d& theOrient,
182 Standard_Boolean& theIsOrtho) const
183{
184 theIsOrtho = !IsPerspective();
185
186 vtkMatrix4x4* aCompositeProj =
187 myRenderer->GetActiveCamera()->GetCompositeProjectionTransformMatrix (myRenderer->GetTiledAspectRatio(),
188 0,
189 1);
190 for (Standard_Integer aRow = 0; aRow < 4; ++aRow)
191 {
192 for (Standard_Integer aCol = 0; aCol < 4; ++aCol)
193 {
194 theProj.SetValue (aRow, aCol, aCompositeProj->GetElement (aRow, aCol));
195 }
196 }
197
198 theOrient.InitIdentity();
199}
200
201//================================================================
202// Function : GetViewport
203// Purpose :
204//================================================================
205void IVtkVTK_View::GetViewport (Standard_Real& theX,
206 Standard_Real& theY,
207 Standard_Real& theWidth,
208 Standard_Real& theHeight) const
209{
210 Standard_Real aViewport[4];
211 myRenderer->GetViewport (aViewport);
212 theX = aViewport[0];
213 theY = aViewport[1];
214 theWidth = aViewport[2];
215 theHeight = aViewport[3];
216}