vtkUnstructuredGridLinearRayIntegrator Class Reference
#include <vtkUnstructuredGridLinearRayIntegrator.h>
Detailed Description
performs piecewise linear ray integration.vtkUnstructuredGridLinearRayIntegrator performs piecewise linear ray integration. Considering that transfer functions in VTK are piecewise linear, this class should give the "correct" integration under most circumstances. However, the computations performed are fairly hefty and should, for the most part, only be used as a benchmark for other, faster methods.
Definition at line 53 of file vtkUnstructuredGridLinearRayIntegrator.h.
Public Types | |
| typedef vtkUnstructuredGridVolumeRayIntegrator | Superclass |
Public Member Functions | |
| virtual const char * | GetClassName () |
| virtual int | IsA (const char *type) |
| virtual void | PrintSelf (ostream &os, vtkIndent indent) |
| virtual void | Initialize (vtkVolume *volume, vtkDataArray *scalars) |
| virtual void | Integrate (vtkDoubleArray *intersectionLengths, vtkDataArray *nearIntersections, vtkDataArray *farIntersections, float color[4]) |
Static Public Member Functions | |
| static int | IsTypeOf (const char *type) |
| static vtkUnstructuredGridLinearRayIntegrator * | SafeDownCast (vtkObject *o) |
| static vtkUnstructuredGridLinearRayIntegrator * | New () |
| static void | IntegrateRay (double length, double intensity_front, double attenuation_front, double intensity_back, double attenuation_back, float color[4]) |
| static void | IntegrateRay (double length, const double color_front[3], double attenuation_front, const double color_back[3], double attenuation_back, float color[4]) |
| static float | Psi (float length, float attenuation_front, float attenuation_back) |
Protected Member Functions | |
| vtkUnstructuredGridLinearRayIntegrator () | |
| ~vtkUnstructuredGridLinearRayIntegrator () | |
Protected Attributes | |
| vtkVolumeProperty * | Property |
| vtkLinearRayIntegratorTransferFunction * | TransferFunctions |
| vtkTimeStamp | TransferFunctionsModified |
| int | NumIndependentComponents |
Member Typedef Documentation
Reimplemented from vtkUnstructuredGridVolumeRayIntegrator.
Definition at line 57 of file vtkUnstructuredGridLinearRayIntegrator.h.
Constructor & Destructor Documentation
| vtkUnstructuredGridLinearRayIntegrator::vtkUnstructuredGridLinearRayIntegrator | ( | ) | [protected] |
| vtkUnstructuredGridLinearRayIntegrator::~vtkUnstructuredGridLinearRayIntegrator | ( | ) | [protected] |
Member Function Documentation
| virtual const char* vtkUnstructuredGridLinearRayIntegrator::GetClassName | ( | ) | [virtual] |
Reimplemented from vtkUnstructuredGridVolumeRayIntegrator.
| static int vtkUnstructuredGridLinearRayIntegrator::IsTypeOf | ( | const char * | name | ) | [static] |
Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkUnstructuredGridVolumeRayIntegrator.
| virtual int vtkUnstructuredGridLinearRayIntegrator::IsA | ( | const char * | name | ) | [virtual] |
Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkUnstructuredGridVolumeRayIntegrator.
| static vtkUnstructuredGridLinearRayIntegrator* vtkUnstructuredGridLinearRayIntegrator::SafeDownCast | ( | vtkObject * | o | ) | [static] |
Reimplemented from vtkUnstructuredGridVolumeRayIntegrator.
| static vtkUnstructuredGridLinearRayIntegrator* vtkUnstructuredGridLinearRayIntegrator::New | ( | ) | [static] |
Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
Reimplemented from vtkObject.
| virtual void vtkUnstructuredGridLinearRayIntegrator::PrintSelf | ( | ostream & | os, | |
| vtkIndent | indent | |||
| ) | [virtual] |
Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.
Reimplemented from vtkUnstructuredGridVolumeRayIntegrator.
| virtual void vtkUnstructuredGridLinearRayIntegrator::Initialize | ( | vtkVolume * | volume, | |
| vtkDataArray * | scalars | |||
| ) | [virtual] |
Set up the integrator with the given properties and scalars.
Implements vtkUnstructuredGridVolumeRayIntegrator.
| virtual void vtkUnstructuredGridLinearRayIntegrator::Integrate | ( | vtkDoubleArray * | intersectionLengths, | |
| vtkDataArray * | nearIntersections, | |||
| vtkDataArray * | farIntersections, | |||
| float | color[4] | |||
| ) | [virtual] |
Given a set of intersections (defined by the three arrays), compute the peicewise integration of the array in front to back order. /c intersectionLengths holds the lengths of each peicewise segment. /c nearIntersections and /c farIntersections hold the scalar values at the front and back of each segment. /c color should contain the RGBA value of the volume in front of the segments passed in, and the result will be placed back into /c color.
Implements vtkUnstructuredGridVolumeRayIntegrator.
| static void vtkUnstructuredGridLinearRayIntegrator::IntegrateRay | ( | double | length, | |
| double | intensity_front, | |||
| double | attenuation_front, | |||
| double | intensity_back, | |||
| double | attenuation_back, | |||
| float | color[4] | |||
| ) | [static] |
Integrates a single ray segment. color is blended with the result (with color in front). The result is written back into color.
| static void vtkUnstructuredGridLinearRayIntegrator::IntegrateRay | ( | double | length, | |
| const double | color_front[3], | |||
| double | attenuation_front, | |||
| const double | color_back[3], | |||
| double | attenuation_back, | |||
| float | color[4] | |||
| ) | [static] |
Integrates a single ray segment. color is blended with the result (with color in front). The result is written back into color.
| static float vtkUnstructuredGridLinearRayIntegrator::Psi | ( | float | length, | |
| float | attenuation_front, | |||
| float | attenuation_back | |||
| ) | [static] |
Computes Psi (as defined by Moreland and Angel, "A Fast High Accuracy Volume Renderer for Unstructured Data").
Member Data Documentation
Definition at line 94 of file vtkUnstructuredGridLinearRayIntegrator.h.
vtkLinearRayIntegratorTransferFunction* vtkUnstructuredGridLinearRayIntegrator::TransferFunctions [protected] |
Definition at line 96 of file vtkUnstructuredGridLinearRayIntegrator.h.
Definition at line 97 of file vtkUnstructuredGridLinearRayIntegrator.h.
int vtkUnstructuredGridLinearRayIntegrator::NumIndependentComponents [protected] |
Definition at line 98 of file vtkUnstructuredGridLinearRayIntegrator.h.
The documentation for this class was generated from the following file:
- dox/VolumeRendering/vtkUnstructuredGridLinearRayIntegrator.h
