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vtkTemporalFractal.cxx
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vtkTemporalFractal.cxx
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/*=========================================================================
Program: ParaView
Module: vtkTemporalFractal.cxx
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html 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.
=========================================================================*/
#include "vtkTemporalFractal.h"
#include "vtkCellData.h"
#include "vtkCompositeDataIterator.h"
#include "vtkCompositeDataPipeline.h"
#include "vtkDoubleArray.h"
#include "vtkHierarchicalBoxDataSet.h"
#include "vtkImageMandelbrotSource.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkIntArray.h"
#include "vtkMath.h"
#include "vtkMultiBlockDataSet.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkRectilinearGrid.h"
#include "vtkSmartPointer.h"
#include "vtkStreamingDemandDrivenPipeline.h"
#include "vtkUniformGrid.h"
#include "vtkUnsignedCharArray.h"
#include <cassert>
//------------------------------------------------------------------------------
class TemporalFractalOutputUtil : public vtkObject
{
public:
static TemporalFractalOutputUtil* New();
vtkTypeMacro(TemporalFractalOutputUtil, vtkObject);
void AddDataSet(vtkDataObject* newData, unsigned int level)
{
assert(newData);
assert("Expect newData to be created by raw New()" && newData->GetReferenceCount() == 1);
vtkSmartPointer<vtkDataObject> data;
data.TakeReference(newData);
this->DataSets.push_back(data);
this->Levels.push_back(level);
}
~TemporalFractalOutputUtil() override
{
this->DataSets.clear();
this->Levels.clear();
}
void CreateOutput(vtkMultiBlockDataSet* mbs)
{
for (size_t i = 0; i < this->DataSets.size(); i++)
{
vtkDataObject* dataSet = DataSets[i];
unsigned int level = this->Levels[i];
vtkMultiBlockDataSet* block = vtkMultiBlockDataSet::SafeDownCast(mbs->GetBlock(level));
if (!block)
{
block = vtkMultiBlockDataSet::New();
mbs->SetBlock(level, block);
block->Delete();
}
unsigned int index = block->GetNumberOfBlocks();
block->SetBlock(index, dataSet);
}
}
void CreateOutput(vtkHierarchicalBoxDataSet* hbds)
{
std::vector<int> blocksPerLevel;
int gridDescription(-1);
double origin[3] = { DBL_MAX, DBL_MAX, DBL_MAX };
for (size_t i = 0; i < this->Levels.size(); i++)
{
unsigned int level = this->Levels[i];
vtkUniformGrid* grid = vtkUniformGrid::SafeDownCast(this->DataSets[i]);
assert(grid);
gridDescription = grid->GetGridDescription();
double* gridOrigin = grid->GetOrigin();
for (int d = 0; d < 3; d++)
{
if (gridOrigin[d] < origin[d])
{
origin[d] = gridOrigin[d];
}
}
for (unsigned int j = static_cast<unsigned int>(blocksPerLevel.size()); j <= level; j++)
{
blocksPerLevel.push_back(0);
}
blocksPerLevel[level]++;
}
std::vector<unsigned int> blockIds(
blocksPerLevel.size(), 0); // keep track of the id at each level
hbds->Initialize(static_cast<int>(blocksPerLevel.size()), &blocksPerLevel[0]);
hbds->SetOrigin(origin);
hbds->SetGridDescription(gridDescription);
for (size_t i = 0; i < this->Levels.size(); i++)
{
unsigned int level = this->Levels[i];
unsigned int id = blockIds[level];
vtkUniformGrid* grid = vtkUniformGrid::SafeDownCast(this->DataSets[i]);
hbds->SetDataSet(level, id, grid);
blockIds[level]++;
}
}
private:
TemporalFractalOutputUtil() = default;
std::vector<vtkSmartPointer<vtkDataObject>> DataSets;
std::vector<unsigned int> Levels;
};
vtkStandardNewMacro(TemporalFractalOutputUtil);
//------------------------------------------------------------------------------
vtkStandardNewMacro(vtkTemporalFractal);
vtkTemporalFractal::vtkTemporalFractal()
{
this->SetNumberOfInputPorts(0);
this->SetNumberOfOutputPorts(1);
this->Dimensions = 10;
this->FractalValue = 9.5;
this->MaximumLevel = 6;
this->GhostLevels = 0;
this->Levels = vtkIntArray::New();
this->TwoDimensional = 1;
this->Asymmetric = 1;
this->TopLevelSpacing[0] = 1.0;
this->TopLevelSpacing[1] = 1.0;
this->TopLevelSpacing[2] = 1.0;
this->TopLevelOrigin[0] = 0.0;
this->TopLevelOrigin[1] = 0.0;
this->TopLevelOrigin[2] = 0.0;
this->GenerateRectilinearGrids = 0;
this->CurrentTime = 0;
this->DiscreteTimeSteps = 0;
this->AdaptiveSubdivision = 1;
}
//------------------------------------------------------------------------------
vtkTemporalFractal::~vtkTemporalFractal()
{
this->Levels->Delete();
this->Levels = nullptr;
}
int vtkTemporalFractal::FillOutputPortInformation(int vtkNotUsed(port), vtkInformation* info)
{
info->Set(vtkDataObject::DATA_TYPE_NAME(), "vtkDataObject");
return 1;
}
//------------------------------------------------------------------------------
// This handles any alterations necessary for ghost levels.
void vtkTemporalFractal::SetBlockInfo(vtkUniformGrid* grid, int level, int* ext, int onFace[6])
{
// onFace[0]:xmin
// onFace[1]:xmax
// onFace[2]:ymin
// onFace[3]:ymax
// onFace[4]:zmin
// onFace[5]:zmax
if (this->GhostLevels)
{
if (!onFace[0])
{
ext[0] -= 1;
}
if (!onFace[2])
{
ext[2] -= 1;
}
if (!onFace[4])
{
ext[4] -= 1;
}
if (!onFace[1])
{
ext[1] += 1;
}
if (!onFace[3])
{
ext[3] += 1;
}
if (!onFace[5])
{
ext[5] += 1;
}
}
if (this->TwoDimensional)
{
ext[4] = ext[5] = 0;
}
double bds[6];
double origin[3];
double spacing[3];
this->CellExtentToBounds(level, ext, bds);
origin[0] = bds[0];
origin[1] = bds[2];
origin[2] = bds[4];
spacing[0] = (bds[1] - bds[0]) / (double)(ext[1] - ext[0] + 1);
spacing[1] = (bds[3] - bds[2]) / (double)(ext[3] - ext[2] + 1);
spacing[2] = (bds[5] - bds[4]) / (double)(ext[5] - ext[4] + 1);
// Handle Lower dimensions. Assume that cell dimension of 1 is a collapsed
// dimension. Point dim equal 1 also.
int dim[3];
dim[0] = dim[1] = dim[2] = 1;
if (ext[1] > ext[0])
{
dim[0] = ext[1] - ext[0] + 2;
}
if (ext[3] > ext[2])
{
dim[1] = ext[3] - ext[2] + 2;
}
if (ext[5] > ext[4])
{
dim[2] = ext[5] - ext[4] + 2;
}
grid->SetDimensions(dim);
grid->SetSpacing(spacing);
grid->SetOrigin(origin);
if (this->GhostLevels > 0)
{
this->AddGhostLevelArray(grid, dim, onFace);
}
}
//------------------------------------------------------------------------------
// This handles any alterations necessary for ghost levels.
void vtkTemporalFractal::SetRBlockInfo(vtkRectilinearGrid* grid, int level, int* ext, int onFace[6])
{
if (this->GhostLevels)
{
if (!onFace[0])
{
ext[0] -= 1;
}
if (!onFace[2])
{
ext[2] -= 1;
}
if (!onFace[4])
{
ext[4] -= 1;
}
if (!onFace[1])
{
ext[1] += 1;
}
if (!onFace[3])
{
ext[3] += 1;
}
if (!onFace[5])
{
ext[5] += 1;
}
}
if (this->TwoDimensional)
{
ext[4] = ext[5] = 0;
}
double bds[6];
double origin[3];
double spacing[3];
this->CellExtentToBounds(level, ext, bds);
origin[0] = bds[0];
origin[1] = bds[2];
origin[2] = bds[4];
spacing[0] = (bds[1] - bds[0]) / (double)(ext[1] - ext[0] + 1);
spacing[1] = (bds[3] - bds[2]) / (double)(ext[3] - ext[2] + 1);
spacing[2] = (bds[5] - bds[4]) / (double)(ext[5] - ext[4] + 1);
// Handle Lower dimensions. Assume that cell dimension of 1 is a collapsed
// dimension. Point dim equal 1 also.
int dim[3];
dim[0] = dim[1] = dim[2] = 1;
if (ext[1] > ext[0])
{
dim[0] = ext[1] - ext[0] + 2;
}
if (ext[3] > ext[2])
{
dim[1] = ext[3] - ext[2] + 2;
}
if (ext[5] > ext[4])
{
dim[2] = ext[5] - ext[4] + 2;
}
grid->SetDimensions(dim);
vtkDoubleArray* coords[3];
vtkMath::RandomSeed(1234);
int coord = 0;
while (coord < 3)
{
coords[coord] = vtkDoubleArray::New();
// grid->SetOrigin(origin);
// first point
coords[coord]->InsertNextValue(origin[coord]);
double uniformCoordinate;
int i = 1;
int c;
if (this->GhostLevels && !onFace[coord * 2 + 1])
{
c = dim[coord] - 2;
}
else
{
c = dim[coord] - 1;
}
uniformCoordinate = origin[coord];
if (this->GhostLevels && !onFace[coord * 2])
{
uniformCoordinate += spacing[coord];
coords[coord]->InsertNextValue(uniformCoordinate);
++i;
}
while (i < c)
{
uniformCoordinate += spacing[coord];
// get a random number about 1/5 of the uniform spacing.
double epsilon = (vtkMath::Random() - 0.5) * spacing[coord] * 0.4;
coords[coord]->InsertNextValue(uniformCoordinate + epsilon);
++i;
}
if (this->GhostLevels && !onFace[coord * 2 + 1])
{
uniformCoordinate += spacing[coord];
coords[coord]->InsertNextValue(uniformCoordinate);
++i;
}
// last point
uniformCoordinate += spacing[coord];
coords[coord]->InsertNextValue(uniformCoordinate);
++coord;
}
// grid->SetSpacing(spacing);
grid->SetXCoordinates(coords[0]);
grid->SetYCoordinates(coords[1]);
grid->SetZCoordinates(coords[2]);
coord = 0;
while (coord < 3)
{
coords[coord]->Delete();
++coord;
}
if (this->GhostLevels > 0)
{
this->AddGhostLevelArray(grid, dim, onFace);
}
}
//------------------------------------------------------------------------------
int vtkTemporalFractal::TwoDTest(double bds[6], int level, int target)
{
// Test the 4 corners. Refine if the blocks cross the border.
int v0, v1, v2, v3;
if (level == target)
{
return 0;
}
if (level < 2 || !this->AdaptiveSubdivision)
{
return 1;
}
v0 = this->MandelbrotTest(bds[0], bds[2]);
v1 = this->MandelbrotTest(bds[1], bds[2]);
v2 = this->MandelbrotTest(bds[0], bds[3]);
v3 = this->MandelbrotTest(bds[1], bds[3]);
if (v0 && v1 && v2 && v3)
{
return 0;
}
if (!v0 && !v1 && !v2 && !v3)
{
return 0;
}
return 1;
}
int vtkTemporalFractal::MandelbrotTest(double x, double y)
{
unsigned short count = 0;
double v1;
double cReal, cImag, zReal, zImag;
double zReal2, zImag2;
cReal = x;
cImag = y;
zReal = 0.0;
zImag = this->CurrentTime / 10.0;
zReal2 = zReal * zReal;
zImag2 = zImag * zImag;
v1 = (zReal2 + zImag2);
while (v1 < 4.0 && count < 100)
{
zImag = 2.0 * zReal * zImag + cImag;
zReal = zReal2 - zImag2 + cReal;
zReal2 = zReal * zReal;
zImag2 = zImag * zImag;
++count;
v1 = (zReal2 + zImag2);
}
if (count == 100)
{
return 1;
}
return 0;
}
//------------------------------------------------------------------------------
vtkTypeBool vtkTemporalFractal::ProcessRequest(
vtkInformation* request, vtkInformationVector** inputVector, vtkInformationVector* outputVector)
{
// create the output
if (request->Has(vtkDemandDrivenPipeline::REQUEST_DATA_OBJECT()))
{
return this->RequestDataObject(request, inputVector, outputVector);
}
// generate the data
if (request->Has(vtkCompositeDataPipeline::REQUEST_DATA()))
{
int retVal = this->RequestData(request, inputVector, outputVector);
return retVal;
}
// execute information
if (request->Has(vtkDemandDrivenPipeline::REQUEST_INFORMATION()))
{
vtkInformation* info = outputVector->GetInformationObject(0);
info->Set(CAN_HANDLE_PIECE_REQUEST(), 1);
return this->RequestInformation(request, inputVector, outputVector);
}
return this->Superclass::ProcessRequest(request, inputVector, outputVector);
}
int vtkTemporalFractal::RequestDataObject(
vtkInformation*, vtkInformationVector**, vtkInformationVector* outputVector)
{
vtkInformation* info = outputVector->GetInformationObject(0);
vtkCompositeDataSet* dset = this->GenerateRectilinearGrids
? static_cast<vtkCompositeDataSet*>(vtkMultiBlockDataSet::New())
: static_cast<vtkCompositeDataSet*>(vtkHierarchicalBoxDataSet::New());
info->Set(vtkDataObject::DATA_OBJECT(), dset);
dset->Delete();
return 1;
}
//------------------------------------------------------------------------------
// Description:
// This is called by the superclass.
// This is the method you should override.
int vtkTemporalFractal::RequestInformation(
vtkInformation*, vtkInformationVector**, vtkInformationVector* outputVector)
{
vtkInformation* info = outputVector->GetInformationObject(0);
if (this->DiscreteTimeSteps)
{
double tsteps[11];
int i;
for (i = 0; i < 11; ++i)
{
tsteps[i] = i;
}
info->Set(vtkStreamingDemandDrivenPipeline::TIME_STEPS(), tsteps, 11);
}
double trange[2];
trange[0] = 0.0;
trange[1] = 10.0;
info->Set(vtkStreamingDemandDrivenPipeline::TIME_RANGE(), trange, 2);
return 1;
}
//------------------------------------------------------------------------------
int vtkTemporalFractal::RequestData(
vtkInformation* request, vtkInformationVector** inputVector, vtkInformationVector* outputVector)
{
vtkInformation* info = outputVector->GetInformationObject(0);
vtkInformation* outInfo = outputVector->GetInformationObject(0);
// get how many time steps were requested
double timeStep = info->Get(vtkStreamingDemandDrivenPipeline::UPDATE_TIME_STEP());
if (!info->Has(vtkStreamingDemandDrivenPipeline::UPDATE_PIECE_NUMBER()) ||
!info->Has(vtkStreamingDemandDrivenPipeline::UPDATE_NUMBER_OF_PIECES()))
{
vtkErrorMacro("Expected information not found. "
"Cannot provide update extent.");
return 0;
}
// now create the HierarchicalDataSet for each time step
this->CurrentTime = timeStep;
vtkCompositeDataSet* dset = this->GenerateRectilinearGrids
? static_cast<vtkCompositeDataSet*>(vtkMultiBlockDataSet::New())
: static_cast<vtkCompositeDataSet*>(vtkHierarchicalBoxDataSet::New());
this->RequestOneTimeStep(dset, request, inputVector, outputVector);
dset->GetInformation()->Set(vtkDataObject::DATA_TIME_STEP(), timeStep);
outInfo->Set(vtkDataObject::DATA_OBJECT(), dset);
dset->Delete();
return 1;
}
//------------------------------------------------------------------------------
int vtkTemporalFractal ::RequestOneTimeStep(vtkCompositeDataSet* output,
vtkInformation* vtkNotUsed(request), vtkInformationVector** vtkNotUsed(inputVector),
vtkInformationVector* outputVector)
{
vtkInformation* info = outputVector->GetInformationObject(0);
// By setting SetMaximumNumberOfPieces(-1)
// then GetUpdateNumberOfPieces() should always return the number
// of processors in the parallel job and GetUpdatePiece() should
// return the specific process number
int piece = info->Get(vtkStreamingDemandDrivenPipeline::UPDATE_PIECE_NUMBER());
int numPieces = info->Get(vtkStreamingDemandDrivenPipeline::UPDATE_NUMBER_OF_PIECES());
this->OutputUtil = vtkSmartPointer<TemporalFractalOutputUtil>::New();
float ox = -1.75;
float oy = -1.25;
float oz = 0.0;
float xSize = 2.5;
float ySize = 2.5;
float zSize = 2.0;
int blockId = 0;
// This is 10x10x10 in cells.
this->SetTopLevelOrigin(ox, oy, oz);
this->SetTopLevelSpacing(
xSize / this->Dimensions, ySize / this->Dimensions, zSize / this->Dimensions);
int ext[6];
ext[0] = ext[2] = ext[4] = 0;
ext[1] = ext[3] = ext[5] = this->Dimensions - 1;
if (this->Asymmetric)
{ // The changes to an extra 2 in the next level.
ext[1] += 1;
}
// Get a global (across all processes) count of the blocks.
// Do not create the blocks.
this->StartBlock = 0;
this->EndBlock = -1;
this->BlockCount = 0;
int onFace[6];
onFace[0] = 1;
onFace[1] = 1;
onFace[2] = 1;
onFace[3] = 1;
onFace[4] = 1;
onFace[5] = 1;
this->Traverse(blockId, 0, output, ext[0], ext[1], ext[2], ext[3], ext[4], ext[5], onFace);
// Generate our share of the blocks.
this->StartBlock = (int)((float)(piece * this->BlockCount) / (float)(numPieces));
this->EndBlock = (int)((float)((piece + 1) * this->BlockCount) / (float)(numPieces)) - 1;
this->BlockCount = 0;
this->Levels->Initialize();
this->Traverse(blockId, 0, output, ext[0], ext[1], ext[2], ext[3], ext[4], ext[5], onFace);
if (vtkHierarchicalBoxDataSet::SafeDownCast(output))
{
this->OutputUtil->CreateOutput(vtkHierarchicalBoxDataSet::SafeDownCast(output));
}
else if (vtkMultiBlockDataSet::SafeDownCast(output))
{
this->OutputUtil->CreateOutput(vtkMultiBlockDataSet::SafeDownCast(output));
}
double bounds[6];
bounds[0] = ox;
bounds[1] = ox + xSize;
bounds[2] = oy;
bounds[3] = oy + ySize;
bounds[4] = oz;
if (this->TwoDimensional)
{
bounds[5] = oz;
}
else
{
bounds[5] = oz + zSize;
}
info->Set(vtkStreamingDemandDrivenPipeline::BOUNDS(), bounds, 6);
if (!this->GenerateRectilinearGrids)
{
vtkHierarchicalBoxDataSet* hbds = vtkHierarchicalBoxDataSet::SafeDownCast(output);
this->AddVectorArray(hbds);
this->AddTestArray(hbds);
this->AddBlockIdArray(hbds);
this->AddDepthArray(hbds);
}
this->AddFractalArray(output);
this->OutputUtil = nullptr;
return 1;
}
//------------------------------------------------------------------------------
int vtkTemporalFractal::LineTest2(
float x0, float y0, float z0, float x1, float y1, float z1, double bds[6])
{
// intersect line with plane.
float x, y, z;
float k;
// Special case and point is inside box.
if (x0 > bds[0] && x0 < bds[1] && y0 > bds[2] && y0 < bds[3] && z0 > bds[4] && z0 < bds[5])
{
return 1;
}
if (x1 > bds[0] && x1 < bds[1] && y1 > bds[2] && y1 < bds[3] && z1 > bds[4] && z1 < bds[5])
{
return 1;
}
// Do not worry about divide by zero.
// min x
x = bds[0];
k = (x - x0) / (x1 - x0);
if (k >= 0.0 && k <= 1.0)
{
y = y0 + k * (y1 - y0);
z = z0 + k * (z1 - z0);
if (y >= bds[2] && y <= bds[3] && z >= bds[4] && z <= bds[5])
{
return 1;
}
}
// max x
x = bds[1];
k = (x - x0) / (x1 - x0);
if (k >= 0.0 && k <= 1.0)
{
y = y0 + k * (y1 - y0);
z = z0 + k * (z1 - z0);
if (y >= bds[2] && y <= bds[3] && z >= bds[4] && z <= bds[5])
{
return 1;
}
}
// min y
y = bds[2];
k = (y - y0) / (y1 - y0);
if (k >= 0.0 && k <= 1.0)
{
x = x0 + k * (x1 - x0);
z = z0 + k * (z1 - z0);
if (x >= bds[0] && x <= bds[1] && z >= bds[4] && z <= bds[5])
{
return 1;
}
}
// max y
y = bds[3];
k = (y - y0) / (y1 - y0);
if (k >= 0.0 && k <= 1.0)
{
x = x0 + k * (x1 - x0);
z = z0 + k * (z1 - z0);
if (x >= bds[0] && x <= bds[1] && z >= bds[4] && z <= bds[5])
{
return 1;
}
}
// min z
z = bds[4];
k = (z - z0) / (z1 - z0);
if (k >= 0.0 && k <= 1.0)
{
x = x0 + k * (x1 - x0);
y = y0 + k * (y1 - y0);
if (y >= bds[2] && y <= bds[3] && x >= bds[0] && x <= bds[1])
{
return 1;
}
}
return 0;
}
//------------------------------------------------------------------------------
int vtkTemporalFractal::LineTest(
float x0, float y0, float z0, float x1, float y1, float z1, double bds[6], int level, int target)
{
if (level >= target)
{
return 0;
}
if (!this->AdaptiveSubdivision)
{
return 1;
}
// First check to see if the line intersects this block.
if (this->LineTest2(x0, y0, z0, x1, y1, z1, bds))
{
return 1;
}
// If the line intersects our neighbor, then our levels cannot differ by
// more than one.
// Assume that our neighbor is half our size.
double bds2[6];
memcpy(bds2, bds, 6 * sizeof(double));
target = target - 1;
float size;
size = 0.5 * (bds[1] - bds[0]);
bds2[0] = bds[0] - size;
bds2[1] = bds[1] + size;
if (this->LineTest(x0, y0, z0, x1, y1, z1, bds2, level, target))
{
return 1;
}
bds2[0] = bds[0];
bds2[1] = bds[1];
size = 0.5 * (bds[3] - bds[2]);
bds2[2] = bds[2] - size;
bds2[3] = bds[3] + size;
if (this->LineTest(x0, y0, z0, x1, y1, z1, bds2, level, target))
{
return 1;
}
bds2[2] = bds[2];
bds2[3] = bds[3];
size = 0.5 * (bds[5] - bds[4]);
bds2[4] = bds[4] - size;
bds2[5] = bds[5] + size;
if (this->LineTest(x0, y0, z0, x1, y1, z1, bds2, level, target))
{
return 1;
}
return 0;
}
//------------------------------------------------------------------------------
void vtkTemporalFractal::Traverse(int& blockId, int level, vtkDataObject* output, int x0, int x3,
int y0, int y3, int z0, int z3, int onFace[6])
{
double bds[6];
int x1, x2, y1, y2, z1, z2;
if (this->TwoDimensional)
{
z0 = z3 = 0;
}
// Get the bounds of the proposed block.
int ext[6] = { x0, x3, y0, y3, z0, z3 };
this->CellExtentToBounds(level, ext, bds);
x0 = x0 * 2;
x3 = (x3 + 1) * 2 - 1;
y0 = y0 * 2;
y3 = (y3 + 1) * 2 - 1;
z0 = z0 * 2;
z3 = (z3 + 1) * 2 - 1;
x2 = x0 + this->Dimensions;
x1 = x2 - 1;
y2 = y0 + this->Dimensions;
y1 = y2 - 1;
z2 = z0 + this->Dimensions;
z1 = z2 - 1;
if (x3 - x2 - x1 + x0 > 2)
{ // balance asymmetric blocks.
x2 += 2;
x1 += 2;
}
int subOnFace[6];
if (this->TwoDimensional)
{
if (this->TwoDTest(bds, level, this->MaximumLevel))
{
++level;
// Traverse the 4 new blocks.
subOnFace[0] = onFace[0];
subOnFace[1] = 0;
subOnFace[2] = onFace[2];
subOnFace[3] = 0;
subOnFace[4] = 1;
subOnFace[5] = 1;
this->Traverse(blockId, level, output, x0, x1, y0, y1, z0, z0, subOnFace);
subOnFace[0] = 0;
subOnFace[1] = onFace[1];
this->Traverse(blockId, level, output, x2, x3, y0, y1, z0, z0, subOnFace);
subOnFace[0] = onFace[0];
subOnFace[1] = 0;
subOnFace[2] = 0;
subOnFace[3] = onFace[3];
this->Traverse(blockId, level, output, x0, x1, y2, y3, z0, z0, subOnFace);
subOnFace[0] = 0;
subOnFace[1] = onFace[1];
this->Traverse(blockId, level, output, x2, x3, y2, y3, z0, z0, subOnFace);
}
else
{
if (this->BlockCount >= this->StartBlock && this->BlockCount <= this->EndBlock)
{
vtkDataObject* newData(nullptr);
if (this->GenerateRectilinearGrids)
{
vtkRectilinearGrid* grid = vtkRectilinearGrid::New();
newData = grid;
this->SetRBlockInfo(grid, level, ext, onFace);
}
else
{
vtkUniformGrid* grid = vtkUniformGrid::New();
newData = grid;
this->SetBlockInfo(grid, level, ext, onFace);
}
this->OutputUtil->AddDataSet(newData, level);
this->Levels->InsertValue(blockId, level);
++blockId;
}
++this->BlockCount;
}
}
else
{ // 3D
if (this->LineTest(
-1.64662, 0.56383, 1.16369, -1.05088, 0.85595, 0.87104, bds, level, this->MaximumLevel) ||
this->LineTest(
-1.05088, 0.85595, 0.87104, -0.61430, 1.00347, 0.59553, bds, level, this->MaximumLevel))
{ // break block into eight.
++level;
// Traverse the 8 new blocks.
subOnFace[0] = onFace[0];
subOnFace[1] = 0;
subOnFace[2] = onFace[2];
subOnFace[3] = 0;
subOnFace[4] = onFace[4];
subOnFace[5] = 0;
this->Traverse(blockId, level, output, x0, x1, y0, y1, z0, z1, subOnFace);
subOnFace[0] = 0;
subOnFace[1] = onFace[1];
this->Traverse(blockId, level, output, x2, x3, y0, y1, z0, z1, subOnFace);
subOnFace[0] = onFace[0];
subOnFace[1] = 0;
subOnFace[2] = 0;
subOnFace[3] = onFace[3];
this->Traverse(blockId, level, output, x0, x1, y2, y3, z0, z1, subOnFace);
subOnFace[0] = 0;
subOnFace[1] = onFace[1];
this->Traverse(blockId, level, output, x2, x3, y2, y3, z0, z1, subOnFace);
subOnFace[0] = onFace[0];
subOnFace[1] = 0;
subOnFace[2] = onFace[2];
subOnFace[3] = 0;
subOnFace[4] = 0;
subOnFace[5] = onFace[5];
this->Traverse(blockId, level, output, x0, x1, y0, y1, z2, z3, subOnFace);
subOnFace[0] = 0;
subOnFace[1] = onFace[1];
this->Traverse(blockId, level, output, x2, x3, y0, y1, z2, z3, subOnFace);
subOnFace[0] = onFace[0];
subOnFace[1] = 0;
subOnFace[2] = 0;
subOnFace[3] = onFace[3];
this->Traverse(blockId, level, output, x0, x1, y2, y3, z2, z3, subOnFace);
subOnFace[0] = 0;
subOnFace[1] = onFace[1];
this->Traverse(blockId, level, output, x2, x3, y2, y3, z2, z3, subOnFace);
}
else
{
if (this->BlockCount >= this->StartBlock && this->BlockCount <= this->EndBlock)
{
vtkDataObject* newData(nullptr);
if (this->GenerateRectilinearGrids)
{
vtkRectilinearGrid* grid = vtkRectilinearGrid::New();
newData = grid;
this->SetRBlockInfo(grid, level, ext, onFace);
}
else
{
vtkUniformGrid* grid = vtkUniformGrid::New();
newData = grid;
this->SetBlockInfo(grid, level, ext, onFace);
}
this->OutputUtil->AddDataSet(newData, level);
this->Levels->InsertValue(blockId, level);
++blockId;
}
++this->BlockCount;
}
}
}
//------------------------------------------------------------------------------
void vtkTemporalFractal::AddTestArray(vtkHierarchicalBoxDataSet* output)
{
double* origin = this->GetTopLevelOrigin();
int levels = output->GetNumberOfLevels();
int level = 0;
while (level < levels)
{
int blocks = output->GetNumberOfDataSets(level);
int block = 0;
while (block < blocks)
{
vtkUniformGrid* grid;
grid = vtkUniformGrid::SafeDownCast(output->GetDataSet(level, block));
assert("check: grid_exists" && grid != nullptr);
vtkDoubleArray* array = vtkDoubleArray::New();
int numCells = grid->GetNumberOfCells();
array->Allocate(numCells);
array->SetNumberOfTuples(numCells);
double* arrayPtr = static_cast<double*>(array->GetPointer(0));
double spacing[3];
grid->GetSpacing(spacing);
int x, y, z;
int ext[6];
grid->GetExtent(ext);
// we need cell extents bu we just get point extents
if (ext[5] > 0)
{
--ext[5];
}
if (ext[3] > 0)