You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
115 lines
3.2 KiB
C++
115 lines
3.2 KiB
C++
/*=========================================================================
|
|
|
|
Program: Visualization Toolkit
|
|
Module: vtkPointLoad.h
|
|
|
|
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
|
|
All rights reserved.
|
|
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
|
|
|
|
This software is distributed WITHOUT ANY WARRANTY; without even
|
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
PURPOSE. See the above copyright notice for more information.
|
|
|
|
=========================================================================*/
|
|
/**
|
|
* @class vtkPointLoad
|
|
* @brief compute stress tensors given point load on semi-infinite domain
|
|
*
|
|
* vtkPointLoad is a source object that computes stress tensors on a volume.
|
|
* The tensors are computed from the application of a point load on a
|
|
* semi-infinite domain. (The analytical results are adapted from Saada - see
|
|
* text.) It also is possible to compute effective stress scalars if desired.
|
|
* This object serves as a specialized data generator for some of the examples
|
|
* in the text.
|
|
*
|
|
* @sa
|
|
* vtkTensorGlyph, vtkHyperStreamline
|
|
*/
|
|
|
|
#ifndef vtkPointLoad_h
|
|
#define vtkPointLoad_h
|
|
|
|
#include "vtkImageAlgorithm.h"
|
|
#include "vtkImagingHybridModule.h" // For export macro
|
|
|
|
class VTKIMAGINGHYBRID_EXPORT vtkPointLoad : public vtkImageAlgorithm
|
|
{
|
|
public:
|
|
vtkTypeMacro(vtkPointLoad, vtkImageAlgorithm);
|
|
void PrintSelf(ostream& os, vtkIndent indent) override;
|
|
|
|
/**
|
|
* Construct with ModelBounds=(-1,1,-1,1,-1,1), SampleDimensions=(50,50,50),
|
|
* and LoadValue = 1.
|
|
*/
|
|
static vtkPointLoad* New();
|
|
|
|
//@{
|
|
/**
|
|
* Set/Get value of applied load.
|
|
*/
|
|
vtkSetMacro(LoadValue, double);
|
|
vtkGetMacro(LoadValue, double);
|
|
//@}
|
|
|
|
/**
|
|
* Specify the dimensions of the volume. A stress tensor will be computed for
|
|
* each point in the volume.
|
|
*/
|
|
void SetSampleDimensions(int i, int j, int k);
|
|
|
|
//@{
|
|
/**
|
|
* Specify the dimensions of the volume. A stress tensor will be computed for
|
|
* each point in the volume.
|
|
*/
|
|
void SetSampleDimensions(int dim[3]);
|
|
vtkGetVectorMacro(SampleDimensions, int, 3);
|
|
//@}
|
|
|
|
//@{
|
|
/**
|
|
* Specify the region in space over which the tensors are computed. The point
|
|
* load is assumed to be applied at top center of the volume.
|
|
*/
|
|
vtkSetVector6Macro(ModelBounds, double);
|
|
vtkGetVectorMacro(ModelBounds, double, 6);
|
|
//@}
|
|
|
|
//@{
|
|
/**
|
|
* Set/Get Poisson's ratio.
|
|
*/
|
|
vtkSetMacro(PoissonsRatio, double);
|
|
vtkGetMacro(PoissonsRatio, double);
|
|
//@}
|
|
|
|
/**
|
|
* Turn on/off computation of effective stress scalar. These methods do
|
|
* nothing. The effective stress is always computed.
|
|
*/
|
|
void SetComputeEffectiveStress(int) {}
|
|
int GetComputeEffectiveStress() { return 1; }
|
|
void ComputeEffectiveStressOn() {}
|
|
void ComputeEffectiveStressOff() {}
|
|
|
|
protected:
|
|
vtkPointLoad();
|
|
~vtkPointLoad() override {}
|
|
|
|
int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
|
|
void ExecuteDataWithInformation(vtkDataObject*, vtkInformation*) override;
|
|
|
|
double LoadValue;
|
|
double PoissonsRatio;
|
|
int SampleDimensions[3];
|
|
double ModelBounds[6];
|
|
|
|
private:
|
|
vtkPointLoad(const vtkPointLoad&) = delete;
|
|
void operator=(const vtkPointLoad&) = delete;
|
|
};
|
|
|
|
#endif
|