Detailed Description

Definition at line 26 of file VtkAppendArrayFilter.h.

#include <VtkAppendArrayFilter.h>

Inheritance diagram for VtkAppendArrayFilter:

Collaboration diagram for VtkAppendArrayFilter:

Public Member Functions
	vtkTypeMacro (VtkAppendArrayFilter, vtkUnstructuredGridAlgorithm)

void	PrintSelf (ostream &os, vtkIndent indent) override
	Prints the mesh data to an output stream.

void	SetUserProperty (QString name, QVariant value) override
	Sets user properties.

void	SetArray (const std::string &array_name, const std::vector< double > &new_array)

Public Member Functions inherited from VtkAlgorithmProperties
	VtkAlgorithmProperties (QObject *parent=nullptr)
	Constructor (sets default values)

	~VtkAlgorithmProperties () override

vtkProperty *	GetProperties () const
	Returns the vtk properties.

vtkTexture *	GetTexture ()
	Returns a texture (if one has been assigned).

void	SetTexture (vtkTexture *t)
	Sets a texture for the VtkVisPipelineItem.

vtkLookupTable *	GetLookupTable (const QString &array_name)
	Returns the colour lookup table (if one has been assigned).

void	RemoveLookupTable (const QString &array_name)
	Removes the lookup table for the given scalar.

void	SetLookUpTable (const QString &array_name, vtkLookupTable *lut)
	Sets a colour lookup table for the given scalar array of the VtkVisPipelineItem.

void	SetLookUpTable (const QString &array_name, const QString &filename)
	Loads a predefined color lookup table from a file for the specified scalar array.

bool	GetScalarVisibility () const
	Returns the scalar visibility.

void	SetScalarVisibility (bool on)
	Sets the scalar visibility.

QString	GetName () const
	Returns the name. This is set to the file path if it is a source algorithm.

void	SetName (QString name)
	Sets the name.

bool	IsRemovable () const
	Is this algorithm removable from the pipeline (view).

QMap< QString, QVariant > *	GetAlgorithmUserProperties () const
	Returns a map of user properties.

QMap< QString, QList< QVariant > > *	GetAlgorithmUserVectorProperties () const
	Returns a map of vector user properties.

QVariant	GetUserProperty (QString name) const
	Returns the value of a user property.

virtual void	SetUserVectorProperty (QString name, QList< QVariant > values)
	Sets a vector user property. This should be implemented by subclasses.

QList< QVariant >	GetUserVectorProperty (QString name) const
	Returns a list of values of a vector user property.

void	SetActiveAttribute (QString name)
	Set the active attribute.

QString	GetActiveAttribute () const
	Returns the desired active attribute.

Static Public Member Functions
static VtkAppendArrayFilter *	New ()
	Create new objects with New() because of VTKs object reference counting.

Protected Member Functions
	VtkAppendArrayFilter ()

	~VtkAppendArrayFilter () override

int	RequestData (vtkInformation request, vtkInformationVector inputVector, vtkInformationVector outputVector) override
	The filter logic.

Private Attributes
std::vector< double >	_array

std::string	_array_name

Additional Inherited Members
Signals inherited from VtkAlgorithmProperties
void	ScalarVisibilityChanged (bool on)

Protected Attributes inherited from VtkAlgorithmProperties
vtkProperty *	_property

vtkTexture *	_texture

bool	_scalarVisibility

std::map< QString, vtkLookupTable * >	_lut

QString	_name

QString	_activeAttributeName

bool	_removable

QMap< QString, QVariant > *	_algorithmUserProperties

QMap< QString, QList< QVariant > > *	_algorithmUserVectorProperties

Constructor & Destructor Documentation

◆ VtkAppendArrayFilter()

VtkAppendArrayFilter::VtkAppendArrayFilter ( )

protecteddefault

◆ ~VtkAppendArrayFilter()

VtkAppendArrayFilter::~VtkAppendArrayFilter ( )

overrideprotecteddefault

Member Function Documentation

◆ New()

static VtkAppendArrayFilter * VtkAppendArrayFilter::New ( )

static

Create new objects with New() because of VTKs object reference counting.

◆ PrintSelf()

void VtkAppendArrayFilter::PrintSelf	(	ostream &	os,
		vtkIndent	indent )

override

Prints the mesh data to an output stream.

Definition at line 36 of file VtkAppendArrayFilter.cpp.

{
    this->Superclass::PrintSelf(os, indent);
    os << indent << "== VtkAppendArrayFilter ==" << endl;
}

◆ RequestData()

int VtkAppendArrayFilter::RequestData	(	vtkInformation *	request,
		vtkInformationVector **	inputVector,
		vtkInformationVector *	outputVector )

overrideprotected

The filter logic.

Definition at line 42 of file VtkAppendArrayFilter.cpp.

{
    if (this->_array.empty())
    {
        ERR("VtkAppendArrayFilter::RequestData(): Selection array is empty.");
        return 0;
    }
    vtkInformation* inInfo = inputVector[0]->GetInformationObject(0);
    vtkUnstructuredGrid* input = vtkUnstructuredGrid::SafeDownCast(
        inInfo->Get(vtkDataObject::DATA_OBJECT()));
 
    vtkSmartPointer<vtkDoubleArray> colors =
        vtkSmartPointer<vtkDoubleArray>::New();
    colors->SetNumberOfComponents(1);
    std::size_t arrayLength = this->_array.size();
    colors->SetNumberOfValues(arrayLength);
    colors->SetName("Selection");
 
    std::size_t nCells = input->GetNumberOfCells();
    if (nCells > arrayLength)
        WARN(
            "VtkAppendArrayFilter::RequestData(): Number of cells exceeds "
            "selection array length. Surplus cells won't be examined.");
 
    for (std::size_t i = 0; i < arrayLength; i++)
    {
        colors->SetValue(i, _array[i]);
    }
 
    vtkInformation* outInfo = outputVector->GetInformationObject(0);
    vtkUnstructuredGrid* output = vtkUnstructuredGrid::SafeDownCast(
        outInfo->Get(vtkDataObject::DATA_OBJECT()));
    output->CopyStructure(input);
    output->GetPointData()->PassData(input->GetPointData());
    output->GetCellData()->PassData(input->GetCellData());
    output->GetCellData()->AddArray(colors);
    output->GetCellData()->SetActiveScalars(_array_name.c_str());
 
    return 1;
}

References _array, _array_name, ERR(), and WARN().

◆ SetArray()

void VtkAppendArrayFilter::SetArray	(	const std::string &	array_name,
		const std::vector< double > &	new_array )

Definition at line 85 of file VtkAppendArrayFilter.cpp.

{
    this->_array_name = array_name;
    this->_array = new_array;
}

References _array, and _array_name.

◆ SetUserProperty()

void VtkAppendArrayFilter::SetUserProperty	(	QString	name,
		QVariant	value )

inlineoverridevirtual

Sets user properties.

Reimplemented from VtkAlgorithmProperties.

Definition at line 38 of file VtkAppendArrayFilter.h.

    {
        Q_UNUSED(name);
        Q_UNUSED(value);
    }

◆ vtkTypeMacro()

VtkAppendArrayFilter::vtkTypeMacro	(	VtkAppendArrayFilter	,
		vtkUnstructuredGridAlgorithm	)

Member Data Documentation

◆ _array

std::vector<double> VtkAppendArrayFilter::_array

private

Definition at line 57 of file VtkAppendArrayFilter.h.

Referenced by RequestData(), and SetArray().

◆ _array_name

std::string VtkAppendArrayFilter::_array_name

private

Definition at line 58 of file VtkAppendArrayFilter.h.