mirror of https://github.com/CGAL/cgal
233 lines
6.4 KiB
C++
233 lines
6.4 KiB
C++
// Copyright (c) 2005-2008 INRIA Sophia-Antipolis (France).
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// 2008 GeometryFactory, Sophia Antipolis (France)
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 3 of the License,
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// or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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// Author(s) : Laurent Rineau, Pierre Alliez
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#ifdef CGAL_HEADER_ONLY
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#define CGAL_INLINE_FUNCTION inline
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#else
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#define CGAL_INLINE_FUNCTION
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#endif
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#include <CGAL/gl.h>
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#include <CGAL/basic.h>
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namespace CGAL {
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CGAL_INLINE_FUNCTION
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bool Image_3::private_read(_image* im)
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{
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if(im != 0)
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{
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if(image() != 0)
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{
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::_freeImage(image());
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}
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image_ptr = Image_shared_ptr(im, Image_deleter());
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// std::cerr <<
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// boost::format("image=%1% (xdim=%2%, ydim=%3%, zdim=%4%)\n")
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// % image_ptr.get() % image_ptr->xdim % image_ptr->ydim % image_ptr->zdim;
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}
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return im != 0;
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}
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CGAL_INLINE_FUNCTION
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void Image_3::gl_draw(const float point_size,
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const unsigned char r,
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const unsigned char g,
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const unsigned char b)
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{
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if(image_ptr.get() == NULL)
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return;
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glPointSize(point_size);
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glColor3ub(r,g,b);
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glBegin(GL_POINTS);
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unsigned char *pData = (unsigned char*)image_ptr->data;
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unsigned int xy = image_ptr->xdim * image_ptr->ydim;
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for(unsigned int i=0;i<image_ptr->xdim;i+=5)
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for(unsigned int j=0;j<image_ptr->ydim;j+=5)
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for(unsigned int k=0;k<image_ptr->zdim;k+=5)
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{
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unsigned char value = pData[xy*k + j*image_ptr->xdim + i];
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if(value > 0)
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{
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double x = image_ptr->vx * i;
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double y = image_ptr->vy * j;
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double z = image_ptr->vz * k;
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glVertex3d(x,y,z);
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}
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}
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glEnd();
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} // end Image_3::gl_draw
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CGAL_INLINE_FUNCTION
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void Image_3::gl_draw_bbox(const float line_width,
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const unsigned char red,
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const unsigned char green,
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const unsigned char blue)
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{
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if(!image_ptr)
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return;
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glLineWidth(line_width);
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glColor3ub(red,green,blue);
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glBegin(GL_LINES);
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struct Point {
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double x_;
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double y_;
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double z_;
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Point(double x, double y, double z) : x_(x), y_(y), z_(z) {};
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double x() const { return x_; }
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double y() const { return y_; }
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double z() const { return z_; }
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};
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const double xmax = (image_ptr->xdim - 1.0)*(image_ptr->vx);
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const double ymax = (image_ptr->ydim - 1.0)*(image_ptr->vy);
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const double zmax = (image_ptr->zdim - 1.0)*(image_ptr->vz);
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Point a(0.0, 0.0, 0.0);
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Point b(0.0, ymax, 0.0);
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Point c(0.0, ymax, zmax);
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Point d(0.0, 0.0, zmax);
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Point e(xmax, 0.0, 0.0);
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Point f(xmax, ymax, 0.0);
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Point g(xmax, ymax, zmax);
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Point h(xmax, 0.0, zmax);
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glVertex3d(a.x(),a.y(),a.z());
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glVertex3d(b.x(),b.y(),b.z());
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glVertex3d(b.x(),b.y(),b.z());
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glVertex3d(c.x(),c.y(),c.z());
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glVertex3d(c.x(),c.y(),c.z());
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glVertex3d(d.x(),d.y(),d.z());
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glVertex3d(d.x(),d.y(),d.z());
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glVertex3d(a.x(),a.y(),a.z());
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glVertex3d(e.x(),e.y(),e.z());
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glVertex3d(f.x(),f.y(),f.z());
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glVertex3d(f.x(),f.y(),f.z());
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glVertex3d(g.x(),g.y(),g.z());
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glVertex3d(g.x(),g.y(),g.z());
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glVertex3d(h.x(),h.y(),h.z());
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glVertex3d(h.x(),h.y(),h.z());
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glVertex3d(e.x(),e.y(),e.z());
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glVertex3d(a.x(),a.y(),a.z());
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glVertex3d(e.x(),e.y(),e.z());
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glVertex3d(d.x(),d.y(),d.z());
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glVertex3d(h.x(),h.y(),h.z());
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glVertex3d(c.x(),c.y(),c.z());
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glVertex3d(g.x(),g.y(),g.z());
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glVertex3d(b.x(),b.y(),b.z());
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glVertex3d(f.x(),f.y(),f.z());
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glEnd();
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} // end Image_3::gl_draw_bbox
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} // end namespace CGAL
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#if 0
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#include <vtkImageData.h>
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#include <CGAL/Image_3_vtk_interface.h>
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namespace CGAL {
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namespace {
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struct VTK_to_ImageIO_type_mapper {
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WORD_KIND wordKind;
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SIGN sign;
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unsigned int wdim;
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};
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static const VTK_to_ImageIO_type_mapper VTK_to_ImageIO_type[VTK_ID_TYPE] =
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{ { WK_UNKNOWN, SGN_UNKNOWN, 0}, // 0=VTK_VOID
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{ WK_UNKNOWN, SGN_UNKNOWN, 0}, // 1=VTK_BIT
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{ WK_FIXED, SGN_SIGNED, 1}, // 2=VTK_CHAR
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{ WK_FIXED, SGN_UNSIGNED, 1}, // 3=VTK_UNSIGNED_CHAR
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{ WK_FIXED, SGN_SIGNED, 2}, // 4=VTK_SHORT
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{ WK_FIXED, SGN_UNSIGNED, 2}, // 5=VTK_UNSIGNED_SHORT
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{ WK_FIXED, SGN_SIGNED, 4}, // 6=VTK_INT
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{ WK_FIXED, SGN_UNSIGNED, 4}, // 7=VTK_UNSIGNED_INT
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{ WK_FIXED, SGN_SIGNED, 8}, // 8=VTK_LONG
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{ WK_FIXED, SGN_UNSIGNED, 8}, // 9=VTK_UNSIGNED_LONG
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{ WK_FLOAT, SGN_SIGNED, 4}, // 10=VTK_FLOAT
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{ WK_FIXED, SGN_SIGNED, 8} // 11=VTK_DOUBLE
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};
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} //end anonymous namespace
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CGAL_INLINE_FUNCTION
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bool
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Image_3::read_vtk_image_data(vtkImageData* vtk_image)
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{
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if(!vtk_image)
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return false;
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_image* image = ::_initImage();
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const int* dims = vtk_image->GetDimensions();
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const double* spacing = vtk_image->GetSpacing();
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image->vectMode = VM_SCALAR;
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image->xdim = dims[0];
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image->ydim = dims[1];
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image->zdim = dims[2];
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image->vdim = 1;
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image->vx = spacing[0];
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image->vy = spacing[1];
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image->vz = spacing[2];
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image->endianness = ::_getEndianness();
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int vtk_type = vtk_image->GetScalarType();
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if(vtk_type == VTK_SIGNED_CHAR) vtk_type = VTK_CHAR;
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if(vtk_type < 0 || vtk_type > VTK_DOUBLE)
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vtk_type = VTK_DOUBLE;
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const VTK_to_ImageIO_type_mapper& imageio_type =
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VTK_to_ImageIO_type[vtk_type];
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image->wdim = imageio_type.wdim;
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image->wordKind = imageio_type.wordKind;
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image->sign = imageio_type.sign;
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image->data = ::ImageIO_alloc(dims[0]*dims[1]*dims[2]*image->wdim);
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std::cerr << "GetNumberOfTuples()=" << vtk_image->GetPointData()->GetScalars()->GetNumberOfTuples()
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<< "\nimage->size()=" << dims[0]*dims[1]*dims[2]
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<< "\nwdim=" << image->wdim << '\n';
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CGAL_assertion(vtk_image->GetPointData()->GetScalars()->GetNumberOfTuples() == dims[0]*dims[1]*dims[2]);
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vtk_image->GetPointData()->GetScalars()->ExportToVoidPointer(image->data);
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return this->private_read(image);
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}
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} // end namespace CGAL
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#endif // CGAL_USE_VTK
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