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/*=========================================================================
Program: Visualization Toolkit
Module: TestPolyDataRemoveCell.cxx
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.
=========================================================================*/
#include "vtkCellData.h"
#include "vtkIdTypeArray.h"
#include "vtkIntArray.h"
#include "vtkPoints.h"
#include "vtkPolyData.h"
#include "vtkSmartPointer.h"
int TestPolyDataRemoveCell(int , char *[])
{
int rval = 0;
vtkIdType numPoints = 20;
vtkIdType numVerts = 5;
vtkIdType numLines = 8;
vtkIdType numTriangles = 3;
vtkIdType numStrips = 2;
vtkIdType numCells = numVerts+numLines+numTriangles+numStrips;
vtkIdType i;
vtkPoints* points = vtkPoints::New();
points->SetNumberOfPoints(numPoints);
for(i=0;i<numPoints;i++)
{
double loc[3] = {static_cast<double>(i), static_cast<double>(i*i), 0.0};
points->InsertPoint(i, loc);
}
vtkSmartPointer<vtkPolyData> poly = vtkSmartPointer<vtkPolyData>::New();
poly->Allocate(numCells, numCells);
poly->SetPoints(points);
points->Delete();
for(i=0;i<numVerts;i++)
{
poly->InsertNextCell(VTK_VERTEX, 1, &i);
}
for(i=0;i<numLines;i++)
{
vtkIdType pts[2] = {i, i+1};
poly->InsertNextCell(VTK_LINE, 2, pts);
}
for(i=0;i<numTriangles;i++)
{
vtkIdType pts[3] = {0, i+1, i+2};
poly->InsertNextCell(VTK_TRIANGLE, 3, pts);
}
for(i=0;i<numStrips;i++)
{
vtkIdType pts[3] = {0, i+1, i+2};
poly->InsertNextCell(VTK_TRIANGLE_STRIP, 3, pts);
}
vtkIntArray* cellTypes = vtkIntArray::New();
const char ctName[] = "cell types";
cellTypes->SetName(ctName);
cellTypes->SetNumberOfComponents(1);
cellTypes->SetNumberOfTuples(numCells);
for(i=0;i<numCells;i++)
{
cellTypes->SetValue(i, poly->GetCellType(i));
}
poly->GetCellData()->AddArray(cellTypes);
cellTypes->Delete();
vtkIdTypeArray* cellPoints = vtkIdTypeArray::New();
const char cpName[] = "cell points";
cellPoints->SetName(cpName);
cellPoints->SetNumberOfComponents(4); // num points + point ids
cellPoints->SetNumberOfTuples(numCells);
for(i=0;i<numCells;i++)
{
vtkIdType npts, *pts;
poly->GetCellPoints(i, npts, pts);
vtkIdType data[4] = {npts, pts[0], 0, 0};
for(vtkIdType j=1;j<npts;j++)
{
data[j+1] = pts[j];
}
cellPoints->SetTupleValue(i, data);
}
poly->GetCellData()->AddArray(cellPoints);
cellPoints->Delete();
poly->BuildCells();
// now that we're all set up, try deleting one of each object
poly->DeleteCell(numVerts-1); // vertex
poly->DeleteCell(numVerts+numLines-1); // line
poly->DeleteCell(numVerts+numLines+numTriangles-1); // triangle
poly->DeleteCell(numCells-1); // strip
poly->RemoveDeletedCells();
if(poly->GetNumberOfCells() != numCells-4)
{
cout << "Wrong number of cells after removal.\n";
return 1;
}
// the arrays should have been changed so get them again...
cellTypes = vtkIntArray::SafeDownCast(poly->GetCellData()->GetArray(ctName));
cellPoints = vtkIdTypeArray::SafeDownCast(poly->GetCellData()->GetArray(cpName));
// check the cell types and arrays
for(i=0;i<poly->GetNumberOfCells();i++)
{
if(cellTypes->GetValue(i) != poly->GetCellType(i))
{
cout << "Problem with cell type for cell " << i << endl;
return 1;
}
}
// check the cell's points
for(i=0;i<poly->GetNumberOfCells();i++)
{
vtkIdType npts, *pts;
poly->GetCellPoints(i, npts, pts);
vtkIdType data[4];
cellPoints->GetTupleValue(i, data);
if(data[0] != npts)
{
cout << "Problem with the number of points for cell " << i << endl;
return 1;
}
for(vtkIdType j=0;j<npts;j++)
{
if(pts[j] != data[j+1])
{
cout << "Problem with point " << j << " for cell " << i << endl;
return 1;
}
}
}
return rval;
}
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