bool mitk::PlaneGeometryDataMapper2D::CutCrossLineWithReferenceGeometry(const BaseGeometry* referenceGeometry,
Line3D& crossLine)
{
Point3D boundingBoxMin, boundingBoxMax;
boundingBoxMin = referenceGeometry->GetCornerPoint(0);
boundingBoxMax = referenceGeometry->GetCornerPoint(7);
Point3D indexLinePoint;
Vector3D indexLineDirection;
referenceGeometry->WorldToIndex(crossLine.GetPoint(), indexLinePoint);
referenceGeometry->WorldToIndex(crossLine.GetDirection(), indexLineDirection);
referenceGeometry->WorldToIndex(boundingBoxMin, boundingBoxMin);
referenceGeometry->WorldToIndex(boundingBoxMax, boundingBoxMax);
Point3D point1, point2;
// Then, clip this line with the (transformed) bounding box of the
// reference geometry.
int nIntersections = Line3D::BoxLineIntersection(boundingBoxMin[0],
boundingBoxMin[1],
boundingBoxMin[2],
boundingBoxMax[0],
boundingBoxMax[1],
boundingBoxMax[2],
indexLinePoint,
indexLineDirection,
point1,
point2);
if (nIntersections < 2)
{
return false;
}
referenceGeometry->IndexToWorld(point1, point1);
referenceGeometry->IndexToWorld(point2, point2);
crossLine.SetPoints(point1, point2);
return true;
}
bool mitk::PlaneGeometryDataMapper2D::CutCrossLineWithPlaneGeometry(const PlaneGeometry* planeGeometry,
Line3D& crossLine)
{
Point2D indexLinePoint;
Vector2D indexLineDirection;
planeGeometry->Map(crossLine.GetPoint(), indexLinePoint);
planeGeometry->Map(crossLine.GetPoint(), crossLine.GetDirection(), indexLineDirection);
planeGeometry->WorldToIndex(indexLinePoint, indexLinePoint);
planeGeometry->WorldToIndex(indexLineDirection, indexLineDirection);
mitk::Point2D intersectionPoints[2];
// Then, clip this line with the (transformed) bounding box of the
// reference geometry.
int nIntersections = Line3D::RectangleLineIntersection(planeGeometry->GetBounds()[0],
planeGeometry->GetBounds()[2],
planeGeometry->GetBounds()[1],
planeGeometry->GetBounds()[3],
indexLinePoint,
indexLineDirection,
intersectionPoints[0],
intersectionPoints[1]);
if (nIntersections < 2)
{
return false;
}
planeGeometry->IndexToWorld(intersectionPoints[0], intersectionPoints[0]);
planeGeometry->IndexToWorld(intersectionPoints[1], intersectionPoints[1]);
Point3D point1, point2;
planeGeometry->Map(intersectionPoints[0], point1);
planeGeometry->Map(intersectionPoints[1], point2);
crossLine.SetPoints(point1, point2);
return true;
}
void mitk::PlaneCutFilter::_computeIntersection(itk::Image<TPixel, VImageDimension> *image, const PlaneGeometry *plane, const Geometry3D *geometry)
{
typedef itk::Image<TPixel, VImageDimension> ImageType;
const typename ImageType::RegionType &image_region = image->GetLargestPossibleRegion();
const typename ImageType::SizeValueType
max_x = image_region.GetSize(0ul),
max_y = image_region.GetSize(1ul),
max_z = image_region.GetSize(2ul),
img_size = max_x * max_y;
TPixel *data = image->GetBufferPointer();
Point3D p1, p2;
//TODO: Better solution required!
TPixel casted_background_level = static_cast<TPixel>(this->m_BackgroundLevel);
p1[0] = 0;
p2[0] = max_x - 1ul;
if (FILL == this->m_FillMode)
{
for (unsigned long z = 0ul; z < max_z; ++z)
{
p1[2] = z;
p2[2] = z;
for (unsigned long y = 0ul; y < max_y; ++y)
{
p1[1] = y;
p2[1] = y;
Point3D p1_t, p2_t;
geometry->IndexToWorld(p1, p1_t);
geometry->IndexToWorld(p2, p2_t);
if (plane->IsAbove(p1_t))
{
if (plane->IsAbove(p2_t))
{
if (0.0f == this->m_BackgroundLevel)
{
memset(&data[(y * max_x) + (z * img_size)], 0, max_x * sizeof(TPixel));
}
else
{
TPixel *subdata = &data[(y * max_x) + (z * img_size)];
for (unsigned long x = 0; x < max_x; ++x)
{
subdata[x] = casted_background_level;
}
}
}
else
{
Point3D intersection;
Line3D line;
line.SetPoints(p1_t, p2_t);
plane->IntersectionPoint(line, intersection);
geometry->WorldToIndex(intersection, intersection);
if (0.0f == this->m_BackgroundLevel)
{
memset(&data[(y * max_x) + (z * img_size)], 0, (static_cast<unsigned long>(roundf(intersection[0])) + 1u) * sizeof(TPixel));
}
else
{
TPixel *subdata = &data[(y * max_x) + (z * img_size)];
const unsigned long x_size = static_cast<unsigned long>(roundf(intersection[0])) + 1u;
for (unsigned long x = 0; x < x_size; ++x)
{
subdata[x] = casted_background_level;
}
}
}
}
else if (plane->IsAbove(p2_t))
{
Point3D intersection;
Line3D line;
line.SetPoints(p1_t, p2_t);
plane->IntersectionPoint(line, intersection);
geometry->WorldToIndex(intersection, intersection);
if (0.0f == this->m_BackgroundLevel)
{
unsigned long x = static_cast<unsigned long>(roundf(intersection[0]));
memset(&data[x + (y * max_x) + (z * img_size)], 0, (max_x - x) * sizeof(TPixel));
}
else
{
unsigned long x = static_cast<unsigned long>(roundf(intersection[0]));
TPixel *subdata = &data[x + (y * max_x) + (z * img_size)];
const unsigned long x_size = max_x - x;
for (x = 0; x < x_size; ++x)
{
subdata[x] = casted_background_level;
}
}
}
}
}
}
else
{
for (unsigned long z = 0ul; z < max_z; ++z)
{
p1[2] = z;
p2[2] = z;
for (unsigned long y = 0ul; y < max_y; ++y)
{
p1[1] = y;
p2[1] = y;
Point3D p1_t, p2_t;
geometry->IndexToWorld(p1, p1_t);
geometry->IndexToWorld(p2, p2_t);
if (!plane->IsAbove(p1_t))
{
if (!plane->IsAbove(p2_t))
{
if (0.0f == this->m_BackgroundLevel)
{
memset(&data[(y * max_x) + (z * img_size)], 0, max_x * sizeof(TPixel));
}
else
{
TPixel *subdata = &data[(y * max_x) + (z * img_size)];
for (unsigned long x = 0; x < max_x; ++x)
{
subdata[x] = casted_background_level;
}
}
}
else
{
Point3D intersection;
Line3D line;
line.SetPoints(p1_t, p2_t);
plane->IntersectionPoint(line, intersection);
geometry->WorldToIndex(intersection, intersection);
if (0.0f == this->m_BackgroundLevel)
{
memset(&data[(y * max_x) + (z * img_size)], 0, (static_cast<unsigned long>(roundf(intersection[0])) + 1u) * sizeof(TPixel));
}
else
{
TPixel *subdata = &data[(y * max_x) + (z * img_size)];
const unsigned long x_size = static_cast<unsigned long>(roundf(intersection[0])) + 1u;
for (unsigned long x = 0; x < x_size; ++x)
{
subdata[x] = casted_background_level;
}
}
}
}
else if (!plane->IsAbove(p2_t))
{
Point3D intersection;
Line3D line;
line.SetPoints(p1_t, p2_t);
plane->IntersectionPoint(line, intersection);
geometry->WorldToIndex(intersection, intersection);
if (0.0f == this->m_BackgroundLevel)
{
unsigned long x = static_cast<unsigned long>(roundf(intersection[0]));
memset(&data[x + (y * max_x) + (z * img_size)], 0, (max_x - x) * sizeof(TPixel));
}
else
{
unsigned long x = static_cast<unsigned long>(roundf(intersection[0]));
TPixel *subdata = &data[x + (y * max_x) + (z * img_size)];
const unsigned long x_size = max_x - x;
for (x = 0; x < x_size; ++x)
{
subdata[x] = casted_background_level;
}
}
}
}
}
}
}
void mitk::PlaneGeometryDataMapper2D::CreateVtkCrosshair(mitk::BaseRenderer *renderer)
{
bool visible = true;
LocalStorage* ls = m_LSH.GetLocalStorage(renderer);
ls->m_CrosshairActor->SetVisibility(0);
ls->m_ArrowActor->SetVisibility(0);
ls->m_CrosshairHelperLineActor->SetVisibility(0);
GetDataNode()->GetVisibility(visible, renderer, "visible");
if(!visible)
{
return;
}
PlaneGeometryData::Pointer input = const_cast< PlaneGeometryData * >(this->GetInput());
mitk::DataNode* geometryDataNode = renderer->GetCurrentWorldPlaneGeometryNode();
const PlaneGeometryData* rendererWorldPlaneGeometryData = dynamic_cast< PlaneGeometryData * >(geometryDataNode->GetData());
// intersecting with ourself?
if ( input.IsNull() || input.GetPointer() == rendererWorldPlaneGeometryData)
{
return; //nothing to do in this case
}
const PlaneGeometry *inputPlaneGeometry = dynamic_cast< const PlaneGeometry * >( input->GetPlaneGeometry() );
const PlaneGeometry* worldPlaneGeometry = dynamic_cast< const PlaneGeometry* >(
rendererWorldPlaneGeometryData->GetPlaneGeometry() );
if ( worldPlaneGeometry && dynamic_cast<const AbstractTransformGeometry*>(worldPlaneGeometry)==NULL
&& inputPlaneGeometry && dynamic_cast<const AbstractTransformGeometry*>(input->GetPlaneGeometry() )==NULL
&& inputPlaneGeometry->GetReferenceGeometry() )
{
const BaseGeometry *referenceGeometry = inputPlaneGeometry->GetReferenceGeometry();
// calculate intersection of the plane data with the border of the
// world geometry rectangle
Point3D point1, point2;
Line3D crossLine;
// Calculate the intersection line of the input plane with the world plane
if ( worldPlaneGeometry->IntersectionLine( inputPlaneGeometry, crossLine ) )
{
Point3D boundingBoxMin, boundingBoxMax;
boundingBoxMin = referenceGeometry->GetCornerPoint(0);
boundingBoxMax = referenceGeometry->GetCornerPoint(7);
Point3D indexLinePoint;
Vector3D indexLineDirection;
referenceGeometry->WorldToIndex(crossLine.GetPoint(),indexLinePoint);
referenceGeometry->WorldToIndex(crossLine.GetDirection(),indexLineDirection);
referenceGeometry->WorldToIndex(boundingBoxMin,boundingBoxMin);
referenceGeometry->WorldToIndex(boundingBoxMax,boundingBoxMax);
// Then, clip this line with the (transformed) bounding box of the
// reference geometry.
Line3D::BoxLineIntersection(
boundingBoxMin[0], boundingBoxMin[1], boundingBoxMin[2],
boundingBoxMax[0], boundingBoxMax[1], boundingBoxMax[2],
indexLinePoint, indexLineDirection,
point1, point2 );
referenceGeometry->IndexToWorld(point1,point1);
referenceGeometry->IndexToWorld(point2,point2);
crossLine.SetPoints(point1,point2);
vtkSmartPointer<vtkCellArray> lines = vtkSmartPointer<vtkCellArray>::New();
vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();
vtkSmartPointer<vtkPolyData> linesPolyData = vtkSmartPointer<vtkPolyData>::New();
// Now iterate through all other lines displayed in this window and
// calculate the positions of intersection with the line to be
// rendered; these positions will be stored in lineParams to form a
// gap afterwards.
NodesVectorType::iterator otherPlanesIt = m_OtherPlaneGeometries.begin();
NodesVectorType::iterator otherPlanesEnd = m_OtherPlaneGeometries.end();
std::vector<Point3D> intersections;
intersections.push_back(point1);
otherPlanesIt = m_OtherPlaneGeometries.begin();
int gapsize = 32;
this->GetDataNode()->GetPropertyValue( "Crosshair.Gap Size",gapsize, NULL );
ScalarType lineLength = point1.EuclideanDistanceTo(point2);
DisplayGeometry *displayGeometry = renderer->GetDisplayGeometry();
ScalarType gapinmm = gapsize * displayGeometry->GetScaleFactorMMPerDisplayUnit();
float gapSizeParam = gapinmm / lineLength;
while ( otherPlanesIt != otherPlanesEnd )
{
PlaneGeometry *otherPlane = static_cast< PlaneGeometry * >(
static_cast< PlaneGeometryData * >((*otherPlanesIt)->GetData() )->GetPlaneGeometry() );
if (otherPlane != inputPlaneGeometry && otherPlane != worldPlaneGeometry)
{
Point3D planeIntersection;
otherPlane->IntersectionPoint(crossLine,planeIntersection);
ScalarType sectionLength = point1.EuclideanDistanceTo(planeIntersection);
ScalarType lineValue = sectionLength/lineLength;
if(lineValue-gapSizeParam > 0.0)
intersections.push_back(crossLine.GetPoint(lineValue-gapSizeParam));
else intersections.pop_back();
if(lineValue+gapSizeParam < 1.0)
intersections.push_back(crossLine.GetPoint(lineValue+gapSizeParam));
}
++otherPlanesIt;
}
if(intersections.size()%2 == 1)
intersections.push_back(point2);
if(intersections.empty())
{
this->DrawLine(point1,point2,lines,points);
}
else
for(unsigned int i = 0 ; i< intersections.size()-1 ; i+=2)
{
this->DrawLine(intersections[i],intersections[i+1],lines,points);
}
// Add the points to the dataset
linesPolyData->SetPoints(points);
// Add the lines to the dataset
linesPolyData->SetLines(lines);
Vector3D orthogonalVector;
orthogonalVector = inputPlaneGeometry->GetNormal();
worldPlaneGeometry->Project(orthogonalVector,orthogonalVector);
orthogonalVector.Normalize();
// Visualize
ls->m_Mapper->SetInputData(linesPolyData);
ls->m_CrosshairActor->SetMapper(ls->m_Mapper);
// Determine if we should draw the area covered by the thick slicing, default is false.
// This will also show the area of slices that do not have thick slice mode enabled
bool showAreaOfThickSlicing = false;
GetDataNode()->GetBoolProperty( "reslice.thickslices.showarea", showAreaOfThickSlicing );
// determine the pixelSpacing in that direction
double thickSliceDistance = SlicedGeometry3D::CalculateSpacing( referenceGeometry->GetSpacing(), orthogonalVector );
IntProperty *intProperty=0;
if( GetDataNode()->GetProperty( intProperty, "reslice.thickslices.num" ) && intProperty )
thickSliceDistance *= intProperty->GetValue()+0.5;
else
showAreaOfThickSlicing = false;
// not the nicest place to do it, but we have the width of the visible bloc in MM here
// so we store it in this fancy property
GetDataNode()->SetFloatProperty( "reslice.thickslices.sizeinmm", thickSliceDistance*2 );
ls->m_CrosshairActor->SetVisibility(1);
vtkSmartPointer<vtkPolyData> arrowPolyData = vtkSmartPointer<vtkPolyData>::New();
ls->m_Arrowmapper->SetInputData(arrowPolyData);
if(this->m_RenderOrientationArrows)
{
ScalarType triangleSizeMM = 7.0 * displayGeometry->GetScaleFactorMMPerDisplayUnit();
vtkSmartPointer<vtkCellArray> triangles = vtkSmartPointer<vtkCellArray>::New();
vtkSmartPointer<vtkPoints> triPoints = vtkSmartPointer<vtkPoints>::New();
DrawOrientationArrow(triangles,triPoints,triangleSizeMM,orthogonalVector,point1,point2);
DrawOrientationArrow(triangles,triPoints,triangleSizeMM,orthogonalVector,point2,point1);
arrowPolyData->SetPoints(triPoints);
arrowPolyData->SetPolys(triangles);
ls->m_ArrowActor->SetVisibility(1);
}
// Visualize
vtkSmartPointer<vtkPolyData> helperlinesPolyData = vtkSmartPointer<vtkPolyData>::New();
ls->m_HelperLinesmapper->SetInputData(helperlinesPolyData);
if ( showAreaOfThickSlicing )
{
vtkSmartPointer<vtkCellArray> helperlines = vtkSmartPointer<vtkCellArray>::New();
// vectorToHelperLine defines how to reach the helperLine from the mainLine
// got the right direction, so we multiply the width
Vector3D vecToHelperLine = orthogonalVector * thickSliceDistance;
this->DrawLine(point1 - vecToHelperLine, point2 - vecToHelperLine,helperlines,points);
this->DrawLine(point1 + vecToHelperLine, point2 + vecToHelperLine,helperlines,points);
// Add the points to the dataset
helperlinesPolyData->SetPoints(points);
// Add the lines to the dataset
helperlinesPolyData->SetLines(helperlines);
ls->m_CrosshairActor->GetProperty()->SetLineStipplePattern(0xf0f0);
ls->m_CrosshairActor->GetProperty()->SetLineStippleRepeatFactor(1);
ls->m_CrosshairHelperLineActor->SetVisibility(1);
}
}
}
}
