All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Pages
barycentric2D.C
Go to the documentation of this file.
1 /*---------------------------------------------------------------------------*\
2  ========= |
3  \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
4  \\ / O peration | Website: https://openfoam.org
5  \\ / A nd | Copyright (C) 2017-2018 OpenFOAM Foundation
6  \\/ M anipulation |
7 -------------------------------------------------------------------------------
8 License
9  This file is part of OpenFOAM.
10 
11  OpenFOAM is free software: you can redistribute it and/or modify it
12  under the terms of the GNU General Public License as published by
13  the Free Software Foundation, either version 3 of the License, or
14  (at your option) any later version.
15 
16  OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19  for more details.
20 
21  You should have received a copy of the GNU General Public License
22  along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
23 
24 \*---------------------------------------------------------------------------*/
25 
26 #include "barycentric2D.H"
27 #include "Random.H"
28 
29 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
30 
32 {
33  scalar s = rndGen.scalar01();
34  scalar t = rndGen.scalar01();
35 
36  // Transform the random point in the unit square to a random point in the
37  // unit tri by reflecting across the diagonal
38 
39  if (s + t > 1)
40  {
41  s = 1 - s;
42  t = 1 - t;
43  }
44 
45  return Foam::barycentric2D(1 - s - t, s, t);
46 }
47 
48 
49 // ************************************************************************* //
barycentric2D barycentric2D01(Random &rndGen)
Generate a random barycentric coordinate within the unit triangle.
Definition: barycentric2D.C:31
Barycentric2D< scalar > barycentric2D
A scalar version of the templated Barycentric2D.
Definition: barycentric2D.H:45
Templated 2D Barycentric derived from VectorSpace. Has 3 components, one of which is redundant...
Definition: Barycentric2D.H:50
Random rndGen(label(0))
gmvFile<< "tracers "<< particles.size()<< nl;forAllConstIter(Cloud< passiveParticle >, particles, iter){ gmvFile<< iter().position().x()<< " ";}gmvFile<< nl;forAllConstIter(Cloud< passiveParticle >, particles, iter){ gmvFile<< iter().position().y()<< " ";}gmvFile<< nl;forAllConstIter(Cloud< passiveParticle >, particles, iter){ gmvFile<< iter().position().z()<< " ";}gmvFile<< nl;forAll(lagrangianScalarNames, i){ word name=lagrangianScalarNames[i];IOField< scalar > s(IOobject(name, runTime.timeName(), cloud::prefix, mesh, IOobject::MUST_READ, IOobject::NO_WRITE))
Random number generator.
Definition: Random.H:57
scalar scalar01()
Advance the state and return a scalar sample from a uniform.
Definition: RandomI.H:57