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59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkNonLinearCell.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 vtkNonLinearCell
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* @brief abstract superclass for non-linear cells
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*
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* vtkNonLinearCell is an abstract superclass for non-linear cell types.
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* Cells that are a direct subclass of vtkCell or vtkCell3D are linear;
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* cells that are a subclass of vtkNonLinearCell have non-linear interpolation
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* functions. Non-linear cells require special treatment when tessellating
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* or converting to graphics primitives. Note that the linearity of the cell
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* is a function of whether the cell needs tessellation, which does not
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* strictly correlate with interpolation order (e.g., vtkHexahedron has
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* non-linear interpolation functions (a product of three linear functions
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* in r-s-t) even thought vtkHexahedron is considered linear.)
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*/
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#ifndef vtkNonLinearCell_h
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#define vtkNonLinearCell_h
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#include "vtkCell.h"
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#include "vtkCommonDataModelModule.h" // For export macro
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class VTKCOMMONDATAMODEL_EXPORT vtkNonLinearCell : public vtkCell
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{
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public:
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vtkTypeMacro(vtkNonLinearCell, vtkCell);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Non-linear cells require special treatment (tessellation) when
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* converting to graphics primitives (during mapping). The vtkCell
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* API IsLinear() is modified to indicate this requirement.
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*/
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int IsLinear() override { return 0; }
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protected:
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vtkNonLinearCell();
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~vtkNonLinearCell() override {}
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private:
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vtkNonLinearCell(const vtkNonLinearCell&) = delete;
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void operator=(const vtkNonLinearCell&) = delete;
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};
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#endif
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