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123 lines
3.7 KiB
C
123 lines
3.7 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkValuePainter.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkValuePainter
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* @brief painter that renders arrays encoded into
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* pixel colors.
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*
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* vtkValuePainter renders polygonal geometry where data values
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* are encoded into 24 bit integers and send to the screen.
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* The pixel colors can then be read and converted back into values later.
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*
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* @sa
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* vtkValuePass, vtkValuePasses
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*/
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#ifndef vtkValuePainter_h
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#define vtkValuePainter_h
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#include "vtkRenderingOpenGLModule.h" // For export macro
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#include "vtkStandardPolyDataPainter.h"
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class vtkInformationDoubleVectorKey;
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class vtkInformationIntegerKey;
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class vtkInformationStringKey;
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class VTKRENDERINGOPENGL_EXPORT vtkValuePainter :
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public vtkStandardPolyDataPainter
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{
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public:
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static vtkValuePainter* New();
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vtkTypeMacro(vtkValuePainter, vtkStandardPolyDataPainter);
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void PrintSelf(ostream& os, vtkIndent indent);
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//@{
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/**
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* Set the array to be drawn. By default point scalars are
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* used. Arguments are same as those passed to
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* vtkAlgorithm::SetInputArrayToProcess except the first 3 arguments i.e. idx,
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* port, connection.
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*/
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void SetInputArrayToProcess(int fieldAssociation, const char *name);
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void SetInputArrayToProcess(int fieldAssociation, int fieldAttributeType);
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//@}
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/**
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* Set the component (0..numcomponents-1) of the specified array to be drawn.
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* If input array is not a multicomponent array or component is otherwise out
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* of range the painter uses the 0'th component instead.
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*/
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void SetInputComponentToProcess(int comp);
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/**
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* Use the provided scalar range instead of the range of the input data
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* array.
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*/
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void SetScalarRange(double min, double max);
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//@{
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/**
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* Optionally passed down from RenderPass pipeline to
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* controls what data array to draw.
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*/
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static vtkInformationIntegerKey* SCALAR_MODE();
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static vtkInformationDoubleVectorKey* SCALAR_RANGE();
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static vtkInformationIntegerKey* ARRAY_ID();
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static vtkInformationStringKey* ARRAY_NAME();
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static vtkInformationIntegerKey* ARRAY_COMPONENT();
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//@}
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/**
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* Internal convenience method to convert a value to a color
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* TODO: make this templated and programmable
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*/
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static void ValueToColor(double value, double min, double scale,
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unsigned char *color);
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static void ColorToValue(unsigned char *color, double min, double scale,
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double &value);
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protected:
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vtkValuePainter();
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~vtkValuePainter();
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/**
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* overridden to look for informationkeys that specify what array to draw
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*/
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virtual void ProcessInformation(vtkInformation*);
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/**
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* overridden to draw the chosen array value directly as color
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*/
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virtual void RenderInternal(vtkRenderer* renderer, vtkActor* actor,
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unsigned long typeflags, bool forceCompileOnly);
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/**
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* overridden
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* implement drawlines, points, strips
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*/
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void DrawCells(int mode, vtkCellArray *connectivity,
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vtkIdType startCellId, vtkRenderer *renderer);
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private:
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vtkValuePainter(const vtkValuePainter&) VTK_DELETE_FUNCTION;
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void operator=(const vtkValuePainter&) VTK_DELETE_FUNCTION;
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class vtkInternals;
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vtkInternals *Internals;
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};
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#endif
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