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/*=========================================================================
Program: Visualization Toolkit
Module: vtkOutlineCornerSource.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 "vtkOutlineCornerSource.h"
#include "vtkCellArray.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkPoints.h"
#include "vtkPolyData.h"
vtkStandardNewMacro(vtkOutlineCornerSource);
//----------------------------------------------------------------------------
vtkOutlineCornerSource::vtkOutlineCornerSource()
: vtkOutlineSource()
{
this->CornerFactor = 0.2;
}
//----------------------------------------------------------------------------
int vtkOutlineCornerSource::RequestData(
vtkInformation *vtkNotUsed(request),
vtkInformationVector **vtkNotUsed(inputVector),
vtkInformationVector *outputVector)
{
vtkInformation *outInfo = outputVector->GetInformationObject(0);
double *bounds;
double inner_bounds[6];
int i, j, k;
// Initialize
double delta;
bounds = this->Bounds;
for (i = 0; i < 3; i++)
{
delta = (bounds[2*i + 1] - bounds[2*i]) * this->CornerFactor;
inner_bounds[2*i] = bounds[2*i] + delta;
inner_bounds[2*i + 1] = bounds[2*i + 1] - delta;
}
// Allocate storage and create outline
vtkPoints *newPts;
vtkCellArray *newLines;
vtkPolyData *output = vtkPolyData::SafeDownCast(
outInfo->Get(vtkDataObject::DATA_OBJECT()));
newPts = vtkPoints::New();
newPts->Allocate(32);
newLines = vtkCellArray::New();
newLines->Allocate(newLines->EstimateSize(24,2));
double x[3];
vtkIdType pts[2];
int pid = 0;
// 32 points and 24 lines
for (i = 0; i <= 1; i++)
{
for (j = 2; j <= 3; j++)
{
for (k = 4; k <= 5; k++)
{
pts[0] = pid;
x[0] = bounds[i]; x[1] = bounds[j]; x[2] = bounds[k];
newPts->InsertPoint(pid++, x);
pts[1] = pid;
x[0] = inner_bounds[i]; x[1] = bounds[j]; x[2] = bounds[k];
newPts->InsertPoint(pid++, x);
newLines->InsertNextCell(2,pts);
pts[1] = pid;
x[0] = bounds[i]; x[1] = inner_bounds[j]; x[2] = bounds[k];
newPts->InsertPoint(pid++, x);
newLines->InsertNextCell(2,pts);
pts[1] = pid;
x[0] = bounds[i]; x[1] = bounds[j]; x[2] = inner_bounds[k];
newPts->InsertPoint(pid++, x);
newLines->InsertNextCell(2,pts);
}
}
}
// Update selves and release memory
output->SetPoints(newPts);
newPts->Delete();
output->SetLines(newLines);
newLines->Delete();
return 1;
}
//----------------------------------------------------------------------------
void vtkOutlineCornerSource::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "CornerFactor: " << this->CornerFactor << "\n";
}
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