void mitk::ImageVtkMapper2D::ApplyLookuptable( mitk::BaseRenderer* renderer )
{
bool binary = false;
bool CTFcanBeApplied = false;
this->GetDataNode()->GetBoolProperty( "binary", binary, renderer );
LocalStorage* localStorage = this->GetLocalStorage(renderer);
//default lookuptable
localStorage->m_Texture->SetLookupTable( localStorage->m_LookupTable );
if(binary)
{
//default lookuptable for binary images
localStorage->m_Texture->GetLookupTable()->SetRange(0.0, 1.0);
}
else
{
bool useColor = true;
this->GetDataNode()->GetBoolProperty( "use color", useColor, renderer );
if((!useColor))
{
//BEGIN PROPERTY user-defined lut
//currently we do not allow a lookuptable if it is a binary image
// If lookup table use is requested...
mitk::LookupTableProperty::Pointer LookupTableProp;
LookupTableProp = dynamic_cast<mitk::LookupTableProperty*>
(this->GetDataNode()->GetProperty("LookupTable"));
//...check if there is a lookuptable provided by the user
if ( LookupTableProp.IsNotNull() )
{
// If lookup table use is requested and supplied by the user:
// only update the lut, when the properties have changed...
if( LookupTableProp->GetLookupTable()->GetMTime()
<= this->GetDataNode()->GetPropertyList()->GetMTime() )
{
LookupTableProp->GetLookupTable()->ChangeOpacityForAll( LookupTableProp->GetLookupTable()->GetVtkLookupTable()->GetAlpha()*localStorage->m_Actor->GetProperty()->GetOpacity() );
LookupTableProp->GetLookupTable()->ChangeOpacity(0, 0.0);
}
//we use the user-defined lookuptable
localStorage->m_Texture->SetLookupTable( LookupTableProp->GetLookupTable()->GetVtkLookupTable() );
}
else
{
CTFcanBeApplied = true;
}
}//END PROPERTY user-defined lut
LevelWindow levelWindow;
this->GetLevelWindow( levelWindow, renderer );
//set up the lookuptable with the level window range
localStorage->m_Texture->GetLookupTable()->SetRange( levelWindow.GetLowerWindowBound(), levelWindow.GetUpperWindowBound() );
}
//the color function can be applied if the user does not want to use color
//and does not provide a lookuptable
if(CTFcanBeApplied)
{
ApplyColorTransferFunction(renderer);
}
localStorage->m_Texture->SetInput( localStorage->m_ReslicedImage );
}
void mitk::ImageVtkMapper2D::ApplyLevelWindow(mitk::BaseRenderer *renderer)
{
LocalStorage *localStorage = this->GetLocalStorage( renderer );
LevelWindow levelWindow;
this->GetDataNode()->GetLevelWindow( levelWindow, renderer, "levelwindow" );
localStorage->m_LevelWindowFilter->GetLookupTable()->SetRange( levelWindow.GetLowerWindowBound(), levelWindow.GetUpperWindowBound() );
mitk::LevelWindow opacLevelWindow;
if( this->GetDataNode()->GetLevelWindow( opacLevelWindow, renderer, "opaclevelwindow" ) )
{
//pass the opaque level window to the filter
localStorage->m_LevelWindowFilter->SetMinOpacity(opacLevelWindow.GetLowerWindowBound());
localStorage->m_LevelWindowFilter->SetMaxOpacity(opacLevelWindow.GetUpperWindowBound());
}
else
{
//no opaque level window
localStorage->m_LevelWindowFilter->SetMinOpacity(0.0);
localStorage->m_LevelWindowFilter->SetMaxOpacity(255.0);
}
}
void mitk::ImageVtkMapper2D::ApplyLookuptable( mitk::BaseRenderer* renderer, vtkFloatingPointType* bounds )
{
//Have the following 4 different use cases how to generate the lookuptable:
//1. We have a binary image -> The lut range is set to 0.0, 1.0
//2. The user sets a lut we can use
//3. The user sets a transfer function we can use
//4. Nothing defined: The default color lookuptable is used
//@Warning: If the user sets a lut and a transfer function the lut will be used!
LocalStorage* localStorage = m_LSH.GetLocalStorage(renderer);
bool binary = false;
this->GetDataNode()->GetBoolProperty( "binary", binary, renderer );
vtkLookupTable *usedLookupTable = localStorage->m_DefaultLookupTable;
vtkScalarsToColors *usedScalarsToColors = localStorage->m_DefaultLookupTable;
// If lookup table or transferfunction use is requested...
mitk::LookupTableProperty::Pointer lookupTableProp = dynamic_cast<mitk::LookupTableProperty*>(this->GetDataNode()->GetProperty("LookupTable"));
mitk::TransferFunctionProperty::Pointer transferFunctionProp = dynamic_cast<mitk::TransferFunctionProperty*>(this->GetDataNode()->GetProperty("Image Rendering.Transfer Function",renderer ));
if(binary) // is it a binary image?
{
usedScalarsToColors = usedLookupTable = localStorage->m_BinaryLookupTable;
}
else if( lookupTableProp.IsNotNull() ) // is a lookuptable set?
{
if( transferFunctionProp.IsNotNull() )
{
MITK_WARN << "A LookupTable and a transfer function TransferFunction property is set! Only the Image Rendering.Transfer Function will be used. If you want to use the color transfer function, remove or rename the LookupTable property.";
}
//If a lookup table is supplied by the user:
//only update the lut, when the properties have changed...
if( lookupTableProp->GetLookupTable()->GetMTime()
<= this->GetDataNode()->GetPropertyList()->GetMTime() )
{
lookupTableProp->GetLookupTable()->ChangeOpacityForAll( lookupTableProp->GetLookupTable()->GetVtkLookupTable()->GetAlpha()*localStorage->m_Actor->GetProperty()->GetOpacity() );
lookupTableProp->GetLookupTable()->ChangeOpacity(0, 0.0);
}
//If the user defines a lut, we dont want to use the color and take white instead.
dynamic_cast<vtkActor*> (localStorage->m_Actors->GetParts()->GetItemAsObject(0))->GetProperty()->SetColor(1.0, 1.0, 1.0);
localStorage->m_Actor->GetProperty()->SetColor(1.0, 1.0, 1.0);
usedScalarsToColors = usedLookupTable = lookupTableProp->GetLookupTable()->GetVtkLookupTable();
}
else if(transferFunctionProp.IsNotNull()) // is a color transfer function set?
{
usedScalarsToColors = transferFunctionProp->GetValue()->GetColorTransferFunction();
usedLookupTable = 0;
}
else
{
//default lookuptable
LevelWindow levelWindow;
GetDataNode()->GetLevelWindow( levelWindow, renderer, "levelwindow" );
usedLookupTable->SetRange( levelWindow.GetLowerWindowBound(), levelWindow.GetUpperWindowBound() );
}
this->ApplyColor( renderer );
// check for texture interpolation property
bool textureInterpolation = false;
GetDataNode()->GetBoolProperty( "texture interpolation", textureInterpolation, renderer );
//set the interpolation modus according to the property
localStorage->m_Texture->SetInterpolate(textureInterpolation);
mitk::LevelWindow opacLevelWindow;
if( GetDataNode()->GetLevelWindow( opacLevelWindow, renderer, "opaclevelwindow" ) )
{
//pass the opaque level window to the filter
localStorage->m_LevelWindowFilter->SetMinOpacity(opacLevelWindow.GetLowerWindowBound());
localStorage->m_LevelWindowFilter->SetMaxOpacity(opacLevelWindow.GetUpperWindowBound());
}
else
{
//no opaque level window
localStorage->m_LevelWindowFilter->SetMinOpacity(0.0);
localStorage->m_LevelWindowFilter->SetMaxOpacity(255.0);
}
localStorage->m_LevelWindowFilter->SetLookupTable(usedScalarsToColors);
localStorage->m_LevelWindowFilter->SetInput(localStorage->m_ReslicedImage);
localStorage->m_LevelWindowFilter->SetClippingBounds(bounds);
//connect the texture with the output of the levelwindow filter
localStorage->m_Texture->SetInputConnection(localStorage->m_LevelWindowFilter->GetOutputPort());
}