2014-01-19 07:16:06 +08:00
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/*M///////////////////////////////////////////////////////////////////////////////////////
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//
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
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//
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// By downloading, copying, installing or using the software you agree to this license.
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// If you do not agree to this license, do not download, install,
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// copy or use the software.
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//
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//
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// License Agreement
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// For Open Source Computer Vision Library
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//
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// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
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// Third party copyrights are property of their respective owners.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistribution's of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// * Redistribution's in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// * The name of the copyright holders may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// This software is provided by the copyright holders and contributors "as is" and
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// any express or implied warranties, including, but not limited to, the implied
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// warranties of merchantability and fitness for a particular purpose are disclaimed.
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// In no event shall the Intel Corporation or contributors be liable for any direct,
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// indirect, incidental, special, exemplary, or consequential damages
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// (including, but not limited to, procurement of substitute goods or services;
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// loss of use, data, or profits; or business interruption) however caused
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// and on any theory of liability, whether in contract, strict liability,
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// or tort (including negligence or otherwise) arising in any way out of
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// the use of this software, even if advised of the possibility of such damage.
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//
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// Authors:
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// * Anatoly Baksheev, Itseez Inc. myname.mysurname <> mycompany.com
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//
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//M*/
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2016-09-08 21:19:05 +08:00
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#include "../precomp.hpp"
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2014-01-19 07:16:06 +08:00
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namespace cv { namespace viz
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{
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vtkStandardNewMacro(vtkOBJWriter);
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}}
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cv::viz::vtkOBJWriter::vtkOBJWriter()
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{
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std::ofstream fout; // only used to extract the default precision
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this->DecimalPrecision = fout.precision();
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this->FileName = NULL;
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}
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cv::viz::vtkOBJWriter::~vtkOBJWriter(){}
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void cv::viz::vtkOBJWriter::WriteData()
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{
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vtkPolyData *input = this->GetInput();
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if (!input)
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return;
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2014-02-02 23:00:54 +08:00
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if (!this->FileName )
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{
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vtkErrorMacro(<< "No FileName specified! Can't write!");
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this->SetErrorCode(vtkErrorCode::NoFileNameError);
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return;
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}
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vtkDebugMacro(<<"Opening vtk file for writing...");
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ostream *outfilep = new ofstream(this->FileName, ios::out);
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if (outfilep->fail())
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{
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vtkErrorMacro(<< "Unable to open file: "<< this->FileName);
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this->SetErrorCode(vtkErrorCode::CannotOpenFileError);
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delete outfilep;
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2014-01-19 07:16:06 +08:00
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return;
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2014-02-02 23:00:54 +08:00
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}
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2014-01-19 07:16:06 +08:00
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std::ostream& outfile = *outfilep;
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//write header
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2014-02-17 01:27:25 +08:00
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outfile << "# wavefront obj file written by opencv viz module" << std::endl << std::endl;
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2014-01-19 07:16:06 +08:00
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outfile << "mtllib NONE" << std::endl << std::endl;
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// write out the points
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for (int i = 0; i < input->GetNumberOfPoints(); i++)
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{
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Vec3d p;
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input->GetPoint(i, p.val);
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outfile << std::setprecision(this->DecimalPrecision) << "v " << p[0] << " " << p[1] << " " << p[2] << std::endl;
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}
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const int idStart = 1;
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// write out the point data
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vtkSmartPointer<vtkDataArray> normals = input->GetPointData()->GetNormals();
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if(normals)
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{
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for (int i = 0; i < normals->GetNumberOfTuples(); i++)
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{
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Vec3d p;
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normals->GetTuple(i, p.val);
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outfile << std::setprecision(this->DecimalPrecision) << "vn " << p[0] << " " << p[1] << " " << p[2] << std::endl;
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}
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}
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vtkSmartPointer<vtkDataArray> tcoords = input->GetPointData()->GetTCoords();
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if (tcoords)
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{
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for (int i = 0; i < tcoords->GetNumberOfTuples(); i++)
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{
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Vec2d p;
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tcoords->GetTuple(i, p.val);
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outfile << std::setprecision(this->DecimalPrecision) << "vt " << p[0] << " " << p[1] << std::endl;
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}
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}
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// write out a group name and material
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outfile << std::endl << "g grp" << idStart << std::endl;
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outfile << "usemtl mtlNONE" << std::endl;
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// write out verts if any
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if (input->GetNumberOfVerts() > 0)
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{
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vtkIdType npts = 0, *index = 0;
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vtkCellArray *cells = input->GetVerts();
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for (cells->InitTraversal(); cells->GetNextCell(npts, index); )
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{
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outfile << "p ";
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for (int i = 0; i < npts; i++)
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outfile << index[i] + idStart << " ";
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outfile << std::endl;
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}
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}
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// write out lines if any
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if (input->GetNumberOfLines() > 0)
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{
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vtkIdType npts = 0, *index = 0;
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vtkCellArray *cells = input->GetLines();
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for (cells->InitTraversal(); cells->GetNextCell(npts, index); )
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{
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outfile << "l ";
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if (tcoords)
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{
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for (int i = 0; i < npts; i++)
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outfile << index[i] + idStart << "/" << index[i] + idStart << " ";
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}
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else
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for (int i = 0; i < npts; i++)
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outfile << index[i] + idStart << " ";
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outfile << std::endl;
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}
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}
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// write out polys if any
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if (input->GetNumberOfPolys() > 0)
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{
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vtkIdType npts = 0, *index = 0;
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vtkCellArray *cells = input->GetPolys();
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for (cells->InitTraversal(); cells->GetNextCell(npts, index); )
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{
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outfile << "f ";
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for (int i = 0; i < npts; i++)
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{
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if (normals)
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{
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if (tcoords)
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outfile << index[i] + idStart << "/" << index[i] + idStart << "/" << index[i] + idStart << " ";
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else
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outfile << index[i] + idStart << "//" << index[i] + idStart << " ";
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}
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else
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{
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if (tcoords)
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outfile << index[i] + idStart << " " << index[i] + idStart << " ";
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else
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outfile << index[i] + idStart << " ";
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}
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}
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outfile << std::endl;
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}
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}
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// write out tstrips if any
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if (input->GetNumberOfStrips() > 0)
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{
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vtkIdType npts = 0, *index = 0;
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vtkCellArray *cells = input->GetStrips();
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for (cells->InitTraversal(); cells->GetNextCell(npts, index); )
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{
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for (int i = 2, i1, i2; i < npts; ++i)
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{
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if (i % 2)
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{
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i1 = i - 1;
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i2 = i - 2;
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}
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else
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{
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i1 = i - 1;
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i2 = i - 2;
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}
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if(normals)
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{
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if (tcoords)
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{
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outfile << "f " << index[i1] + idStart << "/" << index[i1] + idStart << "/" << index[i1] + idStart << " "
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<< index[i2]+ idStart << "/" << index[i2] + idStart << "/" << index[i2] + idStart << " "
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<< index[i] + idStart << "/" << index[i] + idStart << "/" << index[i] + idStart << std::endl;
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}
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else
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{
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outfile << "f " << index[i1] + idStart << "//" << index[i1] + idStart << " " << index[i2] + idStart
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<< "//" << index[i2] + idStart << " " << index[i] + idStart << "//" << index[i] + idStart << std::endl;
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}
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}
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else
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{
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if (tcoords)
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{
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outfile << "f " << index[i1] + idStart << "/" << index[i1] + idStart << " " << index[i2] + idStart
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<< "/" << index[i2] + idStart << " " << index[i] + idStart << "/" << index[i] + idStart << std::endl;
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}
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else
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outfile << "f " << index[i1] + idStart << " " << index[i2] + idStart << " " << index[i] + idStart << std::endl;
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}
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} /* for (int i = 2; i < npts; ++i) */
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}
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} /* if (input->GetNumberOfStrips() > 0) */
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2014-02-02 23:00:54 +08:00
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vtkDebugMacro(<<"Closing vtk file\n");
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delete outfilep;
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2014-01-19 07:16:06 +08:00
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// Delete the file if an error occurred
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if (this->ErrorCode == vtkErrorCode::OutOfDiskSpaceError)
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{
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vtkErrorMacro("Ran out of disk space; deleting file: " << this->FileName);
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unlink(this->FileName);
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}
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}
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void cv::viz::vtkOBJWriter::PrintSelf(ostream& os, vtkIndent indent)
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{
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Superclass::PrintSelf(os, indent);
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os << indent << "DecimalPrecision: " << DecimalPrecision << "\n";
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}
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2014-02-02 23:00:54 +08:00
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int cv::viz::vtkOBJWriter::FillInputPortInformation(int, vtkInformation *info)
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{
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info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkPolyData");
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return 1;
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}
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vtkPolyData* cv::viz::vtkOBJWriter::GetInput()
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{
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return vtkPolyData::SafeDownCast(this->Superclass::GetInput());
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}
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vtkPolyData* cv::viz::vtkOBJWriter::GetInput(int port)
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{
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return vtkPolyData::SafeDownCast(this->Superclass::GetInput(port));
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}
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