#include <vtkScalarsToColors.h>
Inheritance diagram for vtkScalarsToColors:
vtkScalarsToColors is a general purpose superclass for objects that convert scalars to colors. This include vtkLookupTable classes and color transfer functions.
The scalars to color mapping can be augmented with an additional uniform alpha blend. This is used, for example, to blend a vtkActor's opacity with the lookup table values.
Definition at line 38 of file vtkScalarsToColors.h.
Public Types | |
| typedef vtkObject | Superclass |
| enum | VectorModes { MAGNITUDE = 0, COMPONENT = 1 } |
Public Member Functions | |
| virtual const char * | GetClassName () |
| virtual int | IsA (const char *type) |
| void | PrintSelf (ostream &os, vtkIndent indent) |
| virtual unsigned char * | MapValue (double v)=0 |
| virtual void | Build () |
| virtual double * | GetRange ()=0 |
| virtual void | SetRange (double min, double max)=0 |
| void | SetRange (double rng[2]) |
| virtual void | GetColor (double v, double rgb[3])=0 |
| double * | GetColor (double v) |
| virtual double | GetOpacity (double vtkNotUsed(v)) |
| double | GetLuminance (double x) |
| void | SetAlpha (double alpha) |
| virtual double | GetAlpha () |
| vtkUnsignedCharArray * | MapScalars (vtkDataArray *scalars, int colorMode, int component) |
| virtual void | SetVectorMode (int) |
| virtual int | GetVectorMode () |
| void | SetVectorModeToMagnitude () |
| void | SetVectorModeToComponent () |
| virtual void | SetVectorComponent (int) |
| virtual int | GetVectorComponent () |
| void | MapScalarsThroughTable (vtkDataArray *scalars, unsigned char *output, int outputFormat) |
| void | MapScalarsThroughTable (vtkDataArray *scalars, unsigned char *output) |
| virtual void | MapScalarsThroughTable2 (void *input, unsigned char *output, int inputDataType, int numberOfValues, int inputIncrement, int outputFormat)=0 |
| virtual vtkUnsignedCharArray * | ConvertUnsignedCharToRGBA (vtkUnsignedCharArray *colors, int numComp, int numTuples) |
Static Public Member Functions | |
| static int | IsTypeOf (const char *type) |
| static vtkScalarsToColors * | SafeDownCast (vtkObject *o) |
Protected Member Functions | |
| vtkScalarsToColors () | |
| ~vtkScalarsToColors () | |
Protected Attributes | |
| double | Alpha |
| int | VectorMode |
| int | UseMagnitude |
| int | VectorComponent |
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Reimplemented from vtkObject. Reimplemented in vtkLogLookupTable, vtkLookupTable, vtkWindowLevelLookupTable, and vtkColorTransferFunction. Definition at line 41 of file vtkScalarsToColors.h. |
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Definition at line 118 of file vtkScalarsToColors.h. |
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Definition at line 165 of file vtkScalarsToColors.h. |
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Reimplemented from vtkObject. Reimplemented in vtkLogLookupTable, vtkLookupTable, vtkWindowLevelLookupTable, and vtkColorTransferFunction. |
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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 vtkObject. Reimplemented in vtkLogLookupTable, vtkLookupTable, vtkWindowLevelLookupTable, and vtkColorTransferFunction. |
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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 vtkObject. Reimplemented in vtkLogLookupTable, vtkLookupTable, vtkWindowLevelLookupTable, and vtkColorTransferFunction. |
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Reimplemented from vtkObject. Reimplemented in vtkLogLookupTable, vtkLookupTable, vtkWindowLevelLookupTable, and vtkColorTransferFunction. |
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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 vtkObject. Reimplemented in vtkLogLookupTable, vtkLookupTable, vtkWindowLevelLookupTable, and vtkColorTransferFunction. |
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Perform any processing required (if any) before processing scalars. Reimplemented in vtkLookupTable, and vtkWindowLevelLookupTable. Definition at line 45 of file vtkScalarsToColors.h. |
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Sets/Gets the range of scalars which will be mapped. Implemented in vtkLookupTable, and vtkColorTransferFunction. |
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Perform any processing required (if any) before processing scalars. Implemented in vtkLookupTable, and vtkColorTransferFunction. Referenced by vtkColorTransferFunction::SetRange(), and vtkLookupTable::SetRange(). |
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Perform any processing required (if any) before processing scalars. Reimplemented in vtkLookupTable, and vtkColorTransferFunction. Definition at line 51 of file vtkScalarsToColors.h. |
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Map one value through the lookup table and return a color defined as a RGBA unsigned char tuple (4 bytes). Implemented in vtkLookupTable, and vtkColorTransferFunction. |
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Map one value through the lookup table and return the color as an RGB array of doubles between 0 and 1. Implemented in vtkLookupTable, and vtkColorTransferFunction. Referenced by vtkColorTransferFunction::GetColor(). |
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Map one value through the lookup table and return the color as an RGB array of doubles between 0 and 1. Reimplemented in vtkColorTransferFunction. Definition at line 66 of file vtkScalarsToColors.h. |
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Map one value through the lookup table and return the alpha value (the opacity) as a double between 0 and 1. Definition at line 73 of file vtkScalarsToColors.h. |
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Map one value through the lookup table and return the luminance 0.3*red + 0.59*green + 0.11*blue as a double between 0 and 1. Returns the luminance value for the specified scalar value. Definition at line 81 of file vtkScalarsToColors.h. |
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Specify an additional opacity (alpha) value to blend with. Values != 1 modify the resulting color consistent with the requested form of the output. This is typically used by an actor in order to blend its opacity. |
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Specify an additional opacity (alpha) value to blend with. Values != 1 modify the resulting color consistent with the requested form of the output. This is typically used by an actor in order to blend its opacity. |
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An internal method maps a data array into a 4-component, unsigned char RGBA array. The color mode determines the behavior of mapping. If VTK_COLOR_MODE_DEFAULT is set, then unsigned char data arrays are treated as colors (and converted to RGBA if necessary); otherwise, the data is mapped through this instance of ScalarsToColors. The offset is used for data arrays with more than one component; it indicates which component to use to do the blending. When the component argument is -1, then the this object uses its own selected technique to change a vector into a scalar to map. |
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Change mode that maps vectors by magnitude vs. component. |
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Change mode that maps vectors by magnitude vs. component. |
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Change mode that maps vectors by magnitude vs. component. |
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Change mode that maps vectors by magnitude vs. component. |
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If the mapper does not select which component of a vector to map to colors, you can specify it here. |
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If the mapper does not select which component of a vector to map to colors, you can specify it here. |
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Map a set of scalars through the lookup table in a single operation. The output format can be set to VTK_RGBA (4 components), VTK_RGB (3 components), VTK_LUMINANCE (1 component, greyscale), or VTK_LUMINANCE_ALPHA (2 components) If not supplied, the output format defaults to RGBA. |
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Map a set of scalars through the lookup table in a single operation. The output format can be set to VTK_RGBA (4 components), VTK_RGB (3 components), VTK_LUMINANCE (1 component, greyscale), or VTK_LUMINANCE_ALPHA (2 components) If not supplied, the output format defaults to RGBA. Definition at line 141 of file vtkScalarsToColors.h. References VTK_RGBA. |
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An internal method typically not used in applications. Implemented in vtkLookupTable, and vtkColorTransferFunction. |
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An internal method used to convert a color array to RGBA. The method instantiates a vtkUnsignedCharArray and returns it. The user is responsible for managing the memory. |
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Definition at line 167 of file vtkScalarsToColors.h. |
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Definition at line 170 of file vtkScalarsToColors.h. |
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Definition at line 174 of file vtkScalarsToColors.h. |
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Definition at line 175 of file vtkScalarsToColors.h. |
1.4.3-20050530