parallelIIShortcuts-viewer.cpp File Reference

#include <iostream>
#include "ConfigExamples.h"
#include "DGtal/base/Common.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/helpers/Shortcuts.h"
#include "DGtal/helpers/ShortcutsGeometry.h"
#include "DGtal/io/viewers/PolyscopeViewer.h"
#include "DGtal/io/colormaps/GradientColorMap.h"

Include dependency graph for parallelIIShortcuts-viewer.cpp:

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Typedefs
typedef Shortcuts< Z3i::KSpace >	SH3
typedef ShortcutsGeometry< Z3i::KSpace >	SHG3

Functions
int	main ()

Detailed Description

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Author

David Coeurjolly (david.nosp@m..coe.nosp@m.urjol.nosp@m.ly@c.nosp@m.nrs.f.nosp@m.r) Laboratoire d'InfoRmatique en Image et Systèmes d'information - LIRIS (CNRS, UMR 5205), INSA-Lyon, France

Date

2026/06/08

This file is part of the DGtal library.

Definition in file parallelIIShortcuts-viewer.cpp.

Typedef Documentation

SH3

typedef Shortcuts<Z3i::KSpace> SH3

Definition at line 49 of file parallelIIShortcuts-viewer.cpp.

SHG3

typedef ShortcutsGeometry<Z3i::KSpace> SHG3

Definition at line 50 of file parallelIIShortcuts-viewer.cpp.

Function Documentation

main()

int main

(

void

)

[Parallel-instantiation]

[Parallel-instantiation]

Definition at line 53 of file parallelIIShortcuts-viewer.cpp.

{

  auto params = SH3::defaultParameters() | SHG3::defaultParameters();
  std::string filename = examplesPath + std::string("/samples/bunny-128.vol");
  auto binary_image    = SH3::makeBinaryImage(filename, params );
  auto K               = SH3::getKSpace( binary_image, params );
  auto surface         = SH3::makeDigitalSurface( binary_image, K, params );
  auto surfels   = SH3::getSurfelRange( surface, params );
 
  //Parallel
  const auto axis = 2;
  const auto nbThreads = 4;
  trace.beginBlock(std::to_string(nbThreads) + "threads on axis "+std::to_string(axis));
  auto curv = SHG3::getIIMeanCurvatures( binary_image, surfels,
                                        params( "ii-thread-number", nbThreads )
                                        ( "ii-split-axis", axis )
                                        ( "r-radius", 8 ));
  trace.endBlock();
 
  PolyscopeViewer viewer;
  std::string objectName = "Surfels";
  viewer.draw(surfels, objectName); // Draws the object independently
  viewer.addQuantity(objectName, "Mean curvature", curv);
 
  AxisDomainSplitter<Z3i::Domain> splitter(axis);
  AxisDomainSplitter<Z3i::Domain>::SplitDomainsInfo splits = splitter(binary_image->domain(), nbThreads);
  HueShadeColorMap<unsigned int> cmap(0,(unsigned int)splits.size());
  for(auto i=0; i< splits.size(); ++i)
  {
    viewer << cmap(i);
    viewer << splits[i].domain;
  }
  viewer.show();
 
  return 0;
}

References DGtal::Display3D< Space, KSpace >::addQuantity(), DGtal::Trace::beginBlock(), binary_image, DGtal::Shortcuts< Z3i::KSpace >::defaultParameters(), DGtal::ShortcutsGeometry< Z3i::KSpace >::defaultParameters(), DGtal::Display3D< Space, KSpace >::draw(), DGtal::Trace::endBlock(), DGtal::ShortcutsGeometry< Z3i::KSpace >::getIIMeanCurvatures(), DGtal::Shortcuts< Z3i::KSpace >::getKSpace(), DGtal::Shortcuts< Z3i::KSpace >::getSurfelRange(), K, main(), DGtal::Shortcuts< Z3i::KSpace >::makeBinaryImage(), DGtal::Shortcuts< Z3i::KSpace >::makeDigitalSurface(), DGtal::PolyscopeViewer< Space, KSpace >::show(), splitter, surface, and DGtal::trace.