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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkHyperTreeGridGeometry1DImpl.h"
#include "vtkCellArray.h"
#include "vtkDataSetAttributes.h"
#include "vtkHyperTreeGrid.h"
#include "vtkHyperTreeGridNonOrientedGeometryCursor.h"
#include "vtkPoints.h"
#include "vtkUnsignedCharArray.h"
VTK_ABI_NAMESPACE_BEGIN
//------------------------------------------------------------------------------
vtkHyperTreeGridGeometry1DImpl::vtkHyperTreeGridGeometry1DImpl(vtkHyperTreeGrid* input,
vtkPoints* outPoints, vtkCellArray* outCells, vtkDataSetAttributes* inCellDataAttributes,
vtkDataSetAttributes* outCellDataAttributes, bool passThroughCellIds,
const std::string& originalCellIdArrayName, bool fillMaterial)
: vtkHyperTreeGridGeometrySmallDimensionsImpl(input, outPoints, outCells, inCellDataAttributes,
outCellDataAttributes, passThroughCellIds, originalCellIdArrayName, fillMaterial)
{
// The orientation value indicates the axis on which the HTG 1D is oriented.
this->Axis = this->Input->GetOrientation();
// Cell size : 2 in 1D (segment)
this->CellPoints->SetNumberOfPoints(2);
}
//----------------------------------------------------------------------------------------------
void vtkHyperTreeGridGeometry1DImpl::ProcessLeafCellWithOneInterface(
vtkHyperTreeGridNonOrientedGeometryCursor* cursor, double sign,
const std::vector<double>& distancesToInterface)
{
// Create storage for endpoint IDs
std::vector<vtkIdType> outputIndexPoints;
double xyzCrt[3];
this->CellPoints->GetPoint(0, xyzCrt);
double valCrt = distancesToInterface[0];
double xyzNext[3];
this->CellPoints->GetPoint(1, xyzNext);
double valNext = distancesToInterface[1];
// Retrieve vertex coordinates
if (sign * valCrt >= 0.)
{
outputIndexPoints.emplace_back(this->OutPoints->InsertNextPoint(xyzCrt));
}
if (valCrt * valNext < 0)
{
double nxyz[3];
memcpy(nxyz, xyzCrt, 3 * sizeof(double));
unsigned int iDim = this->Axis;
nxyz[iDim] = (valNext * xyzCrt[iDim] - valCrt * xyzNext[iDim]) / (valNext - valCrt);
outputIndexPoints.emplace_back(this->OutPoints->InsertNextPoint(nxyz));
}
if (sign * valNext >= 0.)
{
outputIndexPoints.emplace_back(this->OutPoints->InsertNextPoint(xyzNext));
}
this->CreateNewCellAndCopyData(outputIndexPoints, cursor->GetGlobalNodeIndex());
}
//----------------------------------------------------------------------------------------------
void vtkHyperTreeGridGeometry1DImpl::ProcessLeafCellWithDoubleInterface(
vtkHyperTreeGridNonOrientedGeometryCursor* cursor,
const std::vector<double>& distancesToInterfaceA,
const std::vector<double>& distancesToInterfaceB)
{
// Create storage for endpoint IDs
std::vector<vtkIdType> outputIndexPoints;
double xyzCrt[3];
this->CellPoints->GetPoint(0, xyzCrt);
double valCrtA = distancesToInterfaceA[0];
double valCrtB = distancesToInterfaceB[0];
double xyzNext[3];
this->CellPoints->GetPoint(1, xyzNext);
double valNextA = distancesToInterfaceA[1];
double valNextB = distancesToInterfaceB[1];
// Retrieve vertex coordinates
if (valCrtA >= 0 && valCrtB <= 0)
{
outputIndexPoints.emplace_back(this->OutPoints->InsertNextPoint(xyzCrt));
}
bool inversionA = false;
double nxyzA[3];
if (valCrtA * valNextA < 0)
{
memcpy(nxyzA, xyzCrt, 3 * sizeof(double));
unsigned int iDim = this->Axis;
nxyzA[iDim] = (valNextA * xyzCrt[iDim] - valCrtA * xyzNext[iDim]) / (valNextA - valCrtA);
inversionA = true;
}
bool inversionB = false;
double nxyzB[3];
if (valCrtB * valNextB < 0)
{
memcpy(nxyzB, xyzCrt, 3 * sizeof(double));
unsigned int iDim = this->Axis;
nxyzB[iDim] = (valNextB * xyzCrt[iDim] - valCrtB * xyzNext[iDim]) / (valNextB - valCrtB);
inversionB = true;
}
if (inversionA)
{
if (inversionB)
{
if (nxyzA[this->Axis] > nxyzB[this->Axis])
{
outputIndexPoints.emplace_back(this->OutPoints->InsertNextPoint(nxyzB));
outputIndexPoints.emplace_back(this->OutPoints->InsertNextPoint(nxyzA));
}
else if (nxyzA[this->Axis] == nxyzB[this->Axis])
{
outputIndexPoints.emplace_back(this->OutPoints->InsertNextPoint(nxyzA));
}
else if (nxyzA[this->Axis] < nxyzB[this->Axis])
{
outputIndexPoints.emplace_back(this->OutPoints->InsertNextPoint(nxyzA));
outputIndexPoints.emplace_back(this->OutPoints->InsertNextPoint(nxyzB));
}
}
else
{
outputIndexPoints.emplace_back(this->OutPoints->InsertNextPoint(nxyzA));
}
}
else if (inversionB)
{
outputIndexPoints.emplace_back(this->OutPoints->InsertNextPoint(nxyzB));
}
if (valNextA >= 0 && valNextB <= 0)
{
outputIndexPoints.emplace_back(this->OutPoints->InsertNextPoint(xyzNext));
}
this->CreateNewCellAndCopyData(outputIndexPoints, cursor->GetGlobalNodeIndex());
}
//----------------------------------------------------------------------------------------------
void vtkHyperTreeGridGeometry1DImpl::BuildCellPoints(
vtkHyperTreeGridNonOrientedGeometryCursor* cursor)
{
// Case of a cell whose interface is not defined, we copy the entire surface
// First endpoint is at origin of cursor
double* cellOrigin = cursor->GetOrigin();
this->CellPoints->SetPoint(0, cellOrigin);
// Second endpoint is at origin of cursor plus its length
double* cellSize = cursor->GetSize();
double cellEnd[3];
memcpy(cellEnd, cellOrigin, 3 * sizeof(double));
cellEnd[this->Axis] += cellSize[this->Axis];
this->CellPoints->SetPoint(1, cellEnd);
}
VTK_ABI_NAMESPACE_END
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