Fraxinus  16.5.0-fx-rc9
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cxNavigatedVideoImage.cpp
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1 /*=========================================================================
2 This file is part of CustusX, an Image Guided Therapy Application.
3 
4 Copyright (c) 2008-2014, SINTEF Department of Medical Technology
5 All rights reserved.
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7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
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10 1. Redistributions of source code must retain the above copyright notice,
11  this list of conditions and the following disclaimer.
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13 2. Redistributions in binary form must reproduce the above copyright notice,
14  this list of conditions and the following disclaimer in the documentation
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21 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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31 =========================================================================*/
32 
33 
34 #include "cxNavigatedVideoImage.h"
35 #include <vtkImageData.h>
36 #include "cxVideoSource.h"
37 #include "cxImageLUT2D.h"
38 #include "cxSliceProxy.h"
39 namespace cx
40 {
41 NavigatedVideoImage::NavigatedVideoImage(QString uid, VideoSourcePtr source, SliceProxyPtr sliceProxy, QString name):
42  Image(uid, source->getVtkImageData(), name),
43  mSliceProxy(sliceProxy)
44 {
45  mToolPositionX = -1;
46  mToolPositionY = -1;
47  connect(source.get(), &VideoSource::newFrame, this, &NavigatedVideoImage::newFrame);
48  getLookupTable2D()->setFullRangeWinLevel(source->getVtkImageData());
49 }
50 
51 static double computeEffectiveOffset(double offset, double size)
52 {
53  if (offset >= 0)
54  {
55  return offset;
56  }
57  return size/2;
58 }
59 
66 {
67  int size[3];
68  double spacing[3];
69  mBaseImageData->GetDimensions(size);
70  mBaseImageData->GetSpacing(spacing);
71  double offsetX = computeEffectiveOffset( mToolPositionX, size[0] );
72  double offsetY = computeEffectiveOffset( mToolPositionY, size[1] );
73  Transform3D T = createTransformTranslate(Vector3D(-(size[0]-offsetX)*spacing[0], -offsetY*spacing[1], 0));
74  Transform3D Flip = createTransformScale(Vector3D(1, -1, 1)); // Video data has inverted Y axis compared to other data
75  return mSliceProxy->get_sMr().inv() * Flip * T;
76 }
77 
83 {
84  int size[3];
85  mBaseImageData->GetDimensions(size);
86  double scalefactorX =(viewport[1]-viewport[0])/(double)size[0];
87  double scalefactorY = (viewport[3]-viewport[2])/(double)size[1];
88  return std::min(scalefactorX, scalefactorY);
89 }
90 
91 void NavigatedVideoImage::newFrame()
92 {
93  double spacing[3];
94  mBaseImageData->GetSpacing(spacing);
95  if (spacing[0] != mSpacing[0] || spacing[1] != mSpacing[1] ||
96  spacing[2] != mSpacing[2] )
97  {
98  emit transformChanged();
99  }
100  emit vtkImageDataChanged();
101  mSpacing[0] = spacing[0];
102  mSpacing[1] = spacing[1];
103  mSpacing[2] = spacing[2];
104 }
105 
112 void NavigatedVideoImage::setToolPosition(double positionX, double positionY)
113 {
114  mToolPositionX = positionX;
115  mToolPositionY = positionY;
116  emit transformChanged();
117 }
118 
119 };
virtual void setToolPosition(double, double)
Set the position of the tool point in the video image.
Transform3D createTransformScale(const Vector3D &scale_)
Transform3D Transform3D
Transform3D is a representation of an affine 3D transform.
boost::shared_ptr< class SliceProxy > SliceProxyPtr
void transformChanged()
emitted when transform is changed
NavigatedVideoImage(QString uid, VideoSourcePtr source, SliceProxyPtr sliceProxy, QString name="")
virtual double computeFullViewZoomFactor(DoubleBoundingBox3D viewport) const
Compute the largest zoom factor that will still fit the entire video image in the given viewport...
A volumetric data set.
Definition: cxImage.h:66
boost::shared_ptr< class VideoSource > VideoSourcePtr
Transform3D createTransformTranslate(const Vector3D &translation)
Representation of a floating-point bounding box in 3D. The data are stored as {xmin,xmax,ymin,ymax,zmin,zmax}, in order to simplify communication with vtk.
Eigen::Vector3d Vector3D
Vector3D is a representation of a point or vector in 3D.
Definition: cxVector3D.h:63
void vtkImageDataChanged()
emitted when the vktimagedata are invalidated and must be retrieved anew.
virtual Transform3D get_rMd() const
vtkImageDataPtr mBaseImageData
image data in data space
Definition: cxImage.h:189
void newFrame()
emitted when a new frame has arrived (getVtkImageData() returns something new). info/status/name/vali...
virtual ImageLUT2DPtr getLookupTable2D()
Definition: cxImage.cpp:337