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136 lines
4.9 KiB
C++
136 lines
4.9 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkCubicLine.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 vtkCubicLine
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* @brief cell represents a cubic , isoparametric 1D line
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*
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* vtkCubicLine is a concrete implementation of vtkNonLinearCell to represent a 1D Cubic line.
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* The Cubic Line is the 4 nodes isoparametric parabolic line . The
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* interpolation is the standard finite element, cubic isoparametric
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* shape function. The cell includes two mid-edge nodes. The ordering of the
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* four points defining the cell is point ids (0,1,2,3) where id #2 and #3 are the
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* mid-edge nodes. Please note that the parametric coordinates lie between -1 and 1
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* in accordance with most standard documentations.
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* @par Thanks:
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* <verbatim>
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* This file has been developed by Oxalya - www.oxalya.com
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* Copyright (c) EDF - www.edf.fr
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* </verbatim>
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*/
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#ifndef vtkCubicLine_h
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#define vtkCubicLine_h
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#include "vtkCommonDataModelModule.h" // For export macro
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#include "vtkNonLinearCell.h"
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class vtkLine;
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class vtkDoubleArray;
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class VTKCOMMONDATAMODEL_EXPORT vtkCubicLine : public vtkNonLinearCell
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{
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public:
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static vtkCubicLine* New();
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vtkTypeMacro(vtkCubicLine, vtkNonLinearCell);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* See the vtkCell API for descriptions of these methods.
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*/
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int GetCellType() override { return VTK_CUBIC_LINE; }
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int GetCellDimension() override { return 1; }
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int GetNumberOfEdges() override { return 0; }
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int GetNumberOfFaces() override { return 0; }
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vtkCell* GetEdge(int) override { return nullptr; }
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vtkCell* GetFace(int) override { return nullptr; }
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int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) override;
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void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
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vtkCellArray* verts, vtkCellArray* lines, vtkCellArray* polys, vtkPointData* inPd,
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vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;
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int EvaluatePosition(const double x[3], double closestPoint[3], int& subId, double pcoords[3],
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double& dist2, double weights[]) override;
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void EvaluateLocation(int& subId, const double pcoords[3], double x[3], double* weights) override;
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int Triangulate(int index, vtkIdList* ptIds, vtkPoints* pts) override;
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void Derivatives(
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int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
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double* GetParametricCoords() override;
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//@}
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/**
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* Return the distance of the parametric coordinate provided to the
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* cell. If inside the cell, a distance of zero is returned.
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*/
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double GetParametricDistance(const double pcoords[3]) override;
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/**
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* Clip this line using scalar value provided. Like contouring, except
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* that it cuts the line to produce other lines.
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*/
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void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
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vtkCellArray* lines, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd,
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vtkIdType cellId, vtkCellData* outCd, int insideOut) override;
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/**
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* Return the center of the triangle in parametric coordinates.
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*/
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int GetParametricCenter(double pcoords[3]) override;
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/**
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* Line-line intersection. Intersection has to occur within [0,1] parametric
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* coordinates and with specified tolerance.
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*/
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int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
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double pcoords[3], int& subId) override;
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static void InterpolationFunctions(const double pcoords[3], double weights[4]);
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static void InterpolationDerivs(const double pcoords[3], double derivs[4]);
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//@{
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/**
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* Compute the interpolation functions/derivatives
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* (aka shape functions/derivatives)
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*/
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void InterpolateFunctions(const double pcoords[3], double weights[4]) override
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{
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vtkCubicLine::InterpolationFunctions(pcoords, weights);
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}
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void InterpolateDerivs(const double pcoords[3], double derivs[4]) override
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{
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vtkCubicLine::InterpolationDerivs(pcoords, derivs);
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}
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//@}
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protected:
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vtkCubicLine();
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~vtkCubicLine() override;
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vtkLine* Line;
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vtkDoubleArray* Scalars; // used to avoid New/Delete in contouring/clipping
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private:
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vtkCubicLine(const vtkCubicLine&) = delete;
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void operator=(const vtkCubicLine&) = delete;
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};
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//----------------------------------------------------------------------------
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inline int vtkCubicLine::GetParametricCenter(double pcoords[3])
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{
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pcoords[0] = pcoords[1] = pcoords[2] = 0.0;
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return 0;
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}
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#endif
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