bool
PlaneGeometry::IsOnPlane( const Line3D &line ) const
{
return ( (Distance( line.GetPoint() ) < eps)
&& (Distance( line.GetPoint2() ) < eps) );
}
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)
{
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 ) )
{
bool hasIntersection = referenceGeometry ? CutCrossLineWithReferenceGeometry(referenceGeometry, crossLine) :
CutCrossLineWithPlaneGeometry(inputPlaneGeometry, crossLine);
if (!hasIntersection)
{
return;
}
point1 = crossLine.GetPoint1();
point2 = crossLine.GetPoint2();
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();
otherPlanesIt = m_OtherPlaneGeometries.begin();
int gapSize = 32;
this->GetDataNode()->GetPropertyValue("Crosshair.Gap Size", gapSize, NULL);
auto intervals = IntervalSet<double>( SimpleInterval<double>(0, 1));
ScalarType lineLength = point1.EuclideanDistanceTo(point2);
ScalarType gapInMM = gapSize * renderer->GetScaleFactorMMPerDisplayUnit();
float gapSizeParam = gapInMM / lineLength;
if( gapSize != 0 )
{
while ( otherPlanesIt != otherPlanesEnd )
{
bool ignorePlane = false;
(*otherPlanesIt)->GetPropertyValue("Crosshair.Ignore", ignorePlane);
if (ignorePlane)
{
++otherPlanesIt;
continue;
}
PlaneGeometry *otherPlaneGeometry = static_cast< PlaneGeometry * >(
static_cast< PlaneGeometryData * >((*otherPlanesIt)->GetData() )->GetPlaneGeometry() );
if (otherPlaneGeometry != inputPlaneGeometry && otherPlaneGeometry != worldPlaneGeometry)
{
double intersectionParam;
if (otherPlaneGeometry->IntersectionPointParam(crossLine, intersectionParam) && intersectionParam > 0 &&
intersectionParam < 1)
{
Point3D point = crossLine.GetPoint() + intersectionParam * crossLine.GetDirection();
bool intersectionPointInsideOtherPlane =
otherPlaneGeometry->HasReferenceGeometry() ?
TestPointInReferenceGeometry(otherPlaneGeometry->GetReferenceGeometry(), point) :
TestPointInPlaneGeometry(otherPlaneGeometry, point);
if (intersectionPointInsideOtherPlane)
{
intervals -= SimpleInterval<double>(intersectionParam - gapSizeParam, intersectionParam + gapSizeParam);
}
}
}
++otherPlanesIt;
}
}
for (const auto& interval : intervals.getIntervals()) {
this->DrawLine(crossLine.GetPoint(interval.GetLowerBoundary()), crossLine.GetPoint(interval.GetUpperBoundary()), 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 ? referenceGeometry->GetSpacing() : inputPlaneGeometry->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 * renderer->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);
}
}
}
}
