Detailed Description

Uses an image source to create a plane in the 3D with the given image texture mapped on it.

Definition at line 28 of file VtkBGImageSource.h.

#include <VtkBGImageSource.h>

Inheritance diagram for VtkBGImageSource:

Collaboration diagram for VtkBGImageSource:

Public Member Functions
	vtkTypeMacro (VtkBGImageSource, vtkTextureMapToPlane)

void	SetRaster (vtkImageAlgorithm *img, double x0, double y0, double scalingFactor)
	Sets the raster/image to be used as a texture map.

void	SetUserProperty (QString name, QVariant value) override
	Sets a user property. This should be implemented by subclasses.

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

Protected Member Functions
	VtkBGImageSource ()

	~VtkBGImageSource () override

Private Attributes
std::pair< double, double >	_origin {0, 0}

double	_cellsize {1}

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

◆ VtkBGImageSource()

VtkBGImageSource::VtkBGImageSource ( )

protecteddefault

◆ ~VtkBGImageSource()

VtkBGImageSource::~VtkBGImageSource ( )

overrideprotecteddefault

Member Function Documentation

◆ New()

static VtkBGImageSource * VtkBGImageSource::New ( )

static

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

Referenced by MainWindow::loadFile().

◆ SetRaster()

void VtkBGImageSource::SetRaster	(	vtkImageAlgorithm *	img,
		double	x0,
		double	y0,
		double	scalingFactor )

Sets the raster/image to be used as a texture map.

Definition at line 37 of file VtkBGImageSource.cpp.

{
    double range[2];
    img->Update();
    img->GetOutput()->GetPointData()->GetScalars()->GetRange(range);
    vtkSmartPointer<vtkImageShiftScale> scale =
        vtkSmartPointer<vtkImageShiftScale>::New();
    scale->SetInputConnection(img->GetOutputPort());
    scale->SetShift(-range[0]);
    scale->SetScale(255.0 / (range[1] - range[0]));
    scale->SetOutputScalarTypeToUnsignedChar();
    scale->Update();
 
    vtkImageData* imageData = scale->GetOutput();
    int dims[3];
    imageData->GetDimensions(dims);
    vtkTexture* texture = vtkTexture::New();
    texture->InterpolateOff();
    texture->RepeatOff();
    // texture->EdgeClampOn(); // does not work
    texture->SetInputData(imageData);
    this->SetTexture(texture);
 
    _origin =
        std::pair<float, float>(static_cast<float>(x0), static_cast<float>(y0));
    _cellsize = scalingFactor;
 
    vtkSmartPointer<vtkPlaneSource> plane =
        vtkSmartPointer<vtkPlaneSource>::New();
    plane->SetOrigin(_origin.first, _origin.second, -1);
    plane->SetPoint1(_origin.first + dims[0] * _cellsize, _origin.second, -1);
    plane->SetPoint2(_origin.first, _origin.second + dims[1] * _cellsize, -1);
 
    this->SetInputConnection(0, plane->GetOutputPort(0));
    this->SetTexture(texture);
}

References _cellsize, _origin, and VtkAlgorithmProperties::SetTexture().

Referenced by MainWindow::loadFile().

◆ SetUserProperty()

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

overridevirtual

Sets a user property. This should be implemented by subclasses.

Reimplemented from VtkAlgorithmProperties.

Definition at line 75 of file VtkBGImageSource.cpp.

{
    VtkAlgorithmProperties::SetUserProperty(name, value);
}

References VtkAlgorithmProperties::SetUserProperty().

◆ vtkTypeMacro()

VtkBGImageSource::vtkTypeMacro	(	VtkBGImageSource	,
		vtkTextureMapToPlane	)

Member Data Documentation

◆ _cellsize

double VtkBGImageSource::_cellsize {1}

private

Definition at line 47 of file VtkBGImageSource.h.

47{1};

Referenced by SetRaster().

◆ _origin

std::pair<double, double> VtkBGImageSource::_origin {0, 0}

private

Definition at line 46 of file VtkBGImageSource.h.

46{0, 0};

Referenced by SetRaster().

The documentation for this class was generated from the following files:

Applications/DataExplorer/VtkVis/VtkBGImageSource.h
Applications/DataExplorer/VtkVis/VtkBGImageSource.cpp