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UniformVectorRealizer.C
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1 //-----------------------------------------------------------------------bl-
2 //--------------------------------------------------------------------------
3 //
4 // QUESO - a library to support the Quantification of Uncertainty
5 // for Estimation, Simulation and Optimization
6 //
7 // Copyright (C) 2008-2017 The PECOS Development Team
8 //
9 // This library is free software; you can redistribute it and/or
10 // modify it under the terms of the Version 2.1 GNU Lesser General
11 // Public License as published by the Free Software Foundation.
12 //
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // Lesser General Public License for more details.
17 //
18 // You should have received a copy of the GNU Lesser General Public
19 // License along with this library; if not, write to the Free Software
20 // Foundation, Inc. 51 Franklin Street, Fifth Floor,
21 // Boston, MA 02110-1301 USA
22 //
23 //-----------------------------------------------------------------------el-
24 
25 #include <limits>
26 #include <queso/math_macros.h>
27 #include <queso/UniformVectorRealizer.h>
28 #include <queso/GslVector.h>
29 #include <queso/GslMatrix.h>
30 
31 namespace QUESO {
32 
33 // Constructor -------------------------------------
34 template<class V, class M>
36  const char* prefix,
37  const VectorSet<V,M>& unifiedImageSet)
38  :
39  BaseVectorRealizer<V,M>(((std::string)(prefix)+"gen").c_str(),unifiedImageSet,std::numeric_limits<unsigned int>::max())
40 {
41  if ((m_env.subDisplayFile()) && (m_env.displayVerbosity() >= 5)) {
42  *m_env.subDisplayFile() << "Entering UniformVectorRealizer<V,M>::constructor()"
43  << ": prefix = " << m_prefix
44  << std::endl;
45  }
46 
47  if ((m_env.subDisplayFile()) && (m_env.displayVerbosity() >= 5)) {
48  *m_env.subDisplayFile() << "Leaving UniformVectorRealizer<V,M>::constructor()"
49  << ": prefix = " << m_prefix
50  << std::endl;
51  }
52 }
53 // Destructor --------------------------------------
54 template<class V, class M>
56 {
57 }
58 // Realization-related methods----------------------
59 template<class V, class M>
60 void
62 {
63  const BoxSubset<V,M>* imageBox = dynamic_cast<const BoxSubset<V,M>* >(&m_unifiedImageSet);
64 
65  queso_require_msg(imageBox, "only box images are supported right now");
66  queso_require_msg(queso_isfinite(imageBox->volume()), "drawing realisations from an improper uniform is not supported");
67 
68  nextValues.cwSetUniform(imageBox->minValues(),imageBox->maxValues());
69 }
70 
71 } // End namespace QUESO
72 
A templated (base) class for handling sampling from vector RVs.
UniformVectorRealizer(const char *prefix, const VectorSet< V, M > &unifiedImageSet)
Constructor.
const BaseEnvironment & m_env
bool queso_isfinite(T arg)
Definition: math_macros.h:51
double volume() const
Set volume; access to private attribute m_volume.
Definition: VectorSet.C:91
A templated class for handling sets.
Definition: VectorSet.h:52
void realization(V &nextValues) const
Draws a realization.
const V & minValues() const
Vector of the minimum values of the box subset.
Definition: BoxSubset.C:95
Class representing a subset of a vector space shaped like a hypercube.
Definition: BoxSubset.h:44
A class for handling sampling from a Uniform probability density distribution.
unsigned int displayVerbosity() const
Definition: Environment.C:450
const V & maxValues() const
Vector of the maximum values of the box subset.
Definition: BoxSubset.C:101
std::ofstream * subDisplayFile() const
Access function for m_subDisplayFile (displays file on stream).
Definition: Environment.C:320

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