DGtal  1.3.beta
Typedefs | Functions
testLemniscate2D.cpp File Reference
#include <iostream>
#include <random>
#include "DGtalCatch.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/shapes/parametric/Lemniscate2D.h"
Include dependency graph for testLemniscate2D.cpp:

Go to the source code of this file.

Typedefs

typedef Z2i::Space Space
 
typedef Z2i::Point Point
 
typedef Z2i::RealPoint RealPoint
 
typedef Lemniscate2D< SpaceShape
 

Functions

double notNullValue (std::uniform_real_distribution< double > &unif, std::default_random_engine &re)
 
RealPoint notNullRealPoint (std::uniform_real_distribution< double > &unif, std::default_random_engine &re)
 
 TEST_CASE ("Lemniscate2D")
 

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
Adrien Krähenbühl (krahe.nosp@m.nbuh.nosp@m.l@uni.nosp@m.stra.nosp@m..fr ) Laboratoire ICube, UMR 7357, Université de Strasbourg, France
Date
2019/07/18

Functions for testing the methods of the Lemniscate2D shape. In particular, test the x(), xp() and xpp() methods for cases leadind to a division by 0.

This file is part of the DGtal library.

Definition in file testLemniscate2D.cpp.

Typedef Documentation

◆ Point

typedef Z2i::Point Point

Definition at line 45 of file testLemniscate2D.cpp.

◆ RealPoint

Definition at line 46 of file testLemniscate2D.cpp.

◆ Shape

Definition at line 48 of file testLemniscate2D.cpp.

◆ Space

typedef Z2i::Space Space

Definition at line 44 of file testLemniscate2D.cpp.

Function Documentation

◆ notNullRealPoint()

RealPoint notNullRealPoint ( std::uniform_real_distribution< double > &  unif,
std::default_random_engine &  re 
)

Definition at line 62 of file testLemniscate2D.cpp.

65 {
67 }

References notNullValue(), re, and unif().

◆ notNullValue()

double notNullValue ( std::uniform_real_distribution< double > &  unif,
std::default_random_engine &  re 
)

Definition at line 50 of file testLemniscate2D.cpp.

53 {
54  double res;
55  do {
56  res = unif(re);
57  }
58  while ( res == Approx(0.) );
59  return res;
60 }

References re, and unif().

Referenced by notNullRealPoint().

◆ TEST_CASE()

TEST_CASE ( "Lemniscate2D"  )

Definition at line 69 of file testLemniscate2D.cpp.

70 {
71  std::uniform_real_distribution<double> unif(-10000,10000);
72  std::default_random_engine re;
73 
74  SECTION("center()")
75  {
76  const RealPoint center(unif(re),unif(re));
77  Shape shape( center, unif(re) );
78  REQUIRE( shape.center() == center );
79  }
80 
81  SECTION("Lower and upper bounds")
82  {
83  Shape shape( unif(re), unif(re), unif(re) );
84  REQUIRE( shape.getLowerBound() <= shape.getUpperBound() );
85  }
86 
87  SECTION("x() with Pi parameter.")
88  {
89  Shape shape( unif(re), unif(re), unif(re) );
90  REQUIRE_NOTHROW( shape.x(M_PI) );
91  }
92 
93  SECTION("x() with Pi parameter -> division by 0.")
94  {
95  Shape shape( unif(re), unif(re), unif(re) );
96  REQUIRE_NOTHROW( shape.x(M_PI) );
97  }
98 
99  SECTION("xp() with Pi parameter -> division by 0.")
100  {
101  Shape shape( unif(re), unif(re), unif(re) );
102  REQUIRE_NOTHROW( shape.xp(M_PI) );
103  }
104 
105  SECTION("xpp() with Pi parameter -> division by 0.")
106  {
107  Shape shape( unif(re), unif(re), unif(re) );
108  REQUIRE_NOTHROW( shape.xp(M_PI) );
109  }
110 }

References DGtal::Astroid2D< TSpace >::center(), DGtal::Astroid2D< TSpace >::getLowerBound(), DGtal::Astroid2D< TSpace >::getUpperBound(), re, REQUIRE(), SECTION(), unif(), DGtal::Astroid2D< TSpace >::x(), and DGtal::Astroid2D< TSpace >::xp().

DGtal::Astroid2D< Space >
DGtal::detail::center
Point center(const std::vector< Point > &points)
Definition: QuickHullKernels.h:66
re
std::default_random_engine re
Definition: testShapeMoveCenter.cpp:139
notNullValue
double notNullValue(std::uniform_real_distribution< double > &unif, std::default_random_engine &re)
Definition: testLemniscate2D.cpp:50
REQUIRE
REQUIRE(domain.isInside(aPoint))
RealPoint
Z2i::RealPoint RealPoint
Definition: testLemniscate2D.cpp:46
unif
std::uniform_real_distribution< double > unif(-1000000., 1000000.)
DGtal::PointVector
Aim: Implements basic operations that will be used in Point and Vector classes.
Definition: PointVector.h:165
SECTION
SECTION("Testing constant forward iterators")
Definition: testSimpleRandomAccessRangeFromPoint.cpp:66