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118 lines
3.3 KiB
118 lines
3.3 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkOutlineCornerSource.cxx,v $
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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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#include "vtkOutlineCornerSource.h"
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#include "vtkCellArray.h"
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#include "vtkInformation.h"
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#include "vtkInformationVector.h"
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#include "vtkObjectFactory.h"
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#include "vtkPoints.h"
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#include "vtkPolyData.h"
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vtkCxxRevisionMacro(vtkOutlineCornerSource, "$Revision: 1.10 $");
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vtkStandardNewMacro(vtkOutlineCornerSource);
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//----------------------------------------------------------------------------
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vtkOutlineCornerSource::vtkOutlineCornerSource()
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: vtkOutlineSource()
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{
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this->CornerFactor = 0.2;
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}
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//----------------------------------------------------------------------------
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int vtkOutlineCornerSource::RequestData(
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vtkInformation *vtkNotUsed(request),
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vtkInformationVector **vtkNotUsed(inputVector),
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vtkInformationVector *outputVector)
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{
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vtkInformation *outInfo = outputVector->GetInformationObject(0);
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double *bounds;
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double inner_bounds[6];
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int i, j, k;
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// Initialize
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double delta;
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bounds = this->Bounds;
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for (i = 0; i < 3; i++)
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{
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delta = (bounds[2*i + 1] - bounds[2*i]) * this->CornerFactor;
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inner_bounds[2*i] = bounds[2*i] + delta;
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inner_bounds[2*i + 1] = bounds[2*i + 1] - delta;
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}
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// Allocate storage and create outline
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vtkPoints *newPts;
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vtkCellArray *newLines;
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vtkPolyData *output = vtkPolyData::SafeDownCast(
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outInfo->Get(vtkDataObject::DATA_OBJECT()));
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newPts = vtkPoints::New();
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newPts->Allocate(32);
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newLines = vtkCellArray::New();
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newLines->Allocate(newLines->EstimateSize(24,2));
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double x[3];
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vtkIdType pts[2];
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int pid = 0;
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// 32 points and 24 lines
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for (i = 0; i <= 1; i++)
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{
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for (j = 2; j <= 3; j++)
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{
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for (k = 4; k <= 5; k++)
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{
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pts[0] = pid;
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x[0] = bounds[i]; x[1] = bounds[j]; x[2] = bounds[k];
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newPts->InsertPoint(pid++, x);
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pts[1] = pid;
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x[0] = inner_bounds[i]; x[1] = bounds[j]; x[2] = bounds[k];
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newPts->InsertPoint(pid++, x);
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newLines->InsertNextCell(2,pts);
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pts[1] = pid;
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x[0] = bounds[i]; x[1] = inner_bounds[j]; x[2] = bounds[k];
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newPts->InsertPoint(pid++, x);
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newLines->InsertNextCell(2,pts);
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pts[1] = pid;
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x[0] = bounds[i]; x[1] = bounds[j]; x[2] = inner_bounds[k];
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newPts->InsertPoint(pid++, x);
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newLines->InsertNextCell(2,pts);
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}
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}
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}
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// Update selves and release memory
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output->SetPoints(newPts);
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newPts->Delete();
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output->SetLines(newLines);
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newLines->Delete();
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return 1;
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}
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//----------------------------------------------------------------------------
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void vtkOutlineCornerSource::PrintSelf(ostream& os, vtkIndent indent)
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{
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this->Superclass::PrintSelf(os,indent);
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os << indent << "CornerFactor: " << this->CornerFactor << "\n";
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}
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