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109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkDistanceToCamera.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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Copyright 2008 Sandia Corporation.
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Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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the U.S. Government retains certain rights in this software.
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-------------------------------------------------------------------------*/
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/**
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* @class vtkDistanceToCamera
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* @brief calculates distance from points to the camera.
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*
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*
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* This filter adds a double array containing the distance from each point
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* to the camera. If Scaling is on, it will use the values in the input
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* array to process in order to scale the size of the points. ScreenSize
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* sets the size in screen pixels that you would want a rendered rectangle
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* at that point to be, if it was scaled by the output array.
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*/
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#ifndef vtkDistanceToCamera_h
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#define vtkDistanceToCamera_h
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#include "vtkPointSetAlgorithm.h"
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#include "vtkRenderingCoreModule.h" // For export macro
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class vtkRenderer;
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class VTKRENDERINGCORE_EXPORT vtkDistanceToCamera : public vtkPointSetAlgorithm
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{
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public:
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static vtkDistanceToCamera* New();
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vtkTypeMacro(vtkDistanceToCamera, vtkPointSetAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* The renderer which will ultimately render these points.
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*/
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void SetRenderer(vtkRenderer* ren);
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vtkGetObjectMacro(Renderer, vtkRenderer);
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//@}
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//@{
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/**
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* The desired screen size obtained by scaling glyphs by the distance
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* array. It assumes the glyph at each point will be unit size.
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*/
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vtkSetMacro(ScreenSize, double);
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vtkGetMacro(ScreenSize, double);
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//@}
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//@{
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/**
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* Whether to scale the distance by the input array to process.
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*/
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vtkSetMacro(Scaling, bool);
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vtkGetMacro(Scaling, bool);
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vtkBooleanMacro(Scaling, bool);
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//@}
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//@{
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/**
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* The name of the distance array. If not set, the array is
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* named 'DistanceToCamera'.
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*/
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vtkSetStringMacro(DistanceArrayName);
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vtkGetStringMacro(DistanceArrayName);
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//@}
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/**
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* The modified time of this filter.
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*/
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vtkMTimeType GetMTime() override;
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protected:
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vtkDistanceToCamera();
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~vtkDistanceToCamera() override;
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int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
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vtkRenderer* Renderer;
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double ScreenSize;
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bool Scaling;
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int LastRendererSize[2];
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double LastCameraPosition[3];
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double LastCameraFocalPoint[3];
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double LastCameraViewUp[3];
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double LastCameraParallelScale;
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char* DistanceArrayName;
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private:
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vtkDistanceToCamera(const vtkDistanceToCamera&) = delete;
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void operator=(const vtkDistanceToCamera&) = delete;
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};
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#endif
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