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JGEOMETRY2D::JCircle2D Class Reference

Data structure for circle in two dimensions. More...

#include <JCircle2D.hh>

Inheritance diagram for JGEOMETRY2D::JCircle2D:
JGEOMETRY2D::JPosition2D JGEOMETRY2D::JVector2D JMATH::JMath< JFirst_t, JSecond_t > JGEOMETRY3D::JCylinder3D

Public Member Functions

 JCircle2D ()
 Default constructor. More...
 
 JCircle2D (const JVector2D &point, const double r)
 Constructor. More...
 
 JCircle2D (const JVector2D &p0, const JVector2D &p1)
 Constructor. More...
 
 JCircle2D (const JVector2D &p0, const JVector2D &p1, const JVector2D &p2, const double precision=std::numeric_limits< double >::epsilon())
 Constructor. More...
 
template<class T >
 JCircle2D (T __begin, T __end, const double precision=std::numeric_limits< double >::epsilon())
 Constructor. More...
 
template<class JElement_t , class JAllocator_t >
 JCircle2D (const array_type< JElement_t, JAllocator_t > &buffer, const double precision=std::numeric_limits< double >::epsilon())
 Constructor. More...
 
double getRadius () const
 Get radius. More...
 
void set (const JVector2D &p0, const JVector2D &p1)
 Set circle. More...
 
void set (const JVector2D &p0, const JVector2D &p1, const JVector2D &p2, const double precision=std::numeric_limits< double >::epsilon())
 Set circle. More...
 
template<class T >
void set (T __begin, T __end, const double precision=std::numeric_limits< double >::epsilon())
 Set circle. More...
 
bool is_inside (const JVector2D &pos, const double precision=std::numeric_limits< double >::min()) const
 Check whether given point is inside circle. More...
 
const JPosition2D & getPosition () const
 Get position. More...
 
JPosition2D & getPosition ()
 Get position. More...
 
void setPosition (const JVector2D &pos)
 Set position. More...
 
 operator JAngle2D () const
 Type conversion operator. More...
 
 operator JVersor2D () const
 Type conversion operator. More...
 
JPosition2D & rotate (const JRotation2D &R)
 Rotate. More...
 
JPosition2D & rotate_back (const JRotation2D &R)
 Rotate back. More...
 
double getDot (const JAngle2D &angle) const
 Get dot product. More...
 
double getDot (const JVersor2D &versor) const
 Get dot product. More...
 
double getDot (const JVector2D &point) const
 Get dot product. More...
 
double getDot (const JVector2D &point) const
 Get dot product. More...
 
double getPerpDot (const JAngle2D &angle) const
 Get perpendicular dot product. More...
 
double getPerpDot (const JVersor2D &dir) const
 Get perpendicular dot product. More...
 
double getPerpDot (const JVector2D &point) const
 Get perpendicular dot product. More...
 
double getPerpDot (const JVector2D &point) const
 Get perpendicular dot product. More...
 
JVector2D & transform (const JMatrix2D &T)
 Transform. More...
 
JVector2D & transform (const JMatrix2D &T)
 Transform. More...
 
double getX () const
 Get x position. More...
 
double getY () const
 Get y position. More...
 
JVector2D & negate ()
 Negate vector. More...
 
JVector2D & add (const JVector2D &vector)
 Add vector. More...
 
JVector2D & sub (const JVector2D &vector)
 Subtract vector. More...
 
JVector2D & mul (const double factor)
 Scale vector. More...
 
JFirst_t & mul (const JSecond_t &object)
 Multiply with object. More...
 
JVector2D & div (const double factor)
 Scale vector. More...
 
bool equals (const JVector2D &vector, const double precision=std::numeric_limits< double >::min()) const
 Check equality. More...
 
double getLengthSquared () const
 Get length squared. More...
 
double getLength () const
 Get length. More...
 
double getDistanceSquared (const JVector2D &point) const
 Get squared of distance to point. More...
 
double getDistance (const JVector2D &point) const
 Get distance to point. More...
 

Protected Attributes

double __r
 
double __x
 
double __y
 

Private Member Functions

template<class T >
void configure (T __begin, T __end, const JVector2D &p0, const double precision)
 Determine smallest enclosing circle. More...
 
template<class T >
void configure (T __begin, T __end, const JVector2D &p0, const JVector2D &p1, const double precision)
 Determine smallest enclosing circle. More...
 

Friends

std::istream & operator>> (std::istream &in, JCircle2D &circle)
 Read circle from input stream. More...
 
std::ostream & operator<< (std::ostream &out, const JCircle2D &circle)
 Write circle to output stream. More...
 
JReader & operator>> (JReader &in, JCircle2D &circle)
 Read circle from input. More...
 
JWriter & operator<< (JWriter &out, const JCircle2D &circle)
 Write circle to output. More...
 

Detailed Description

Data structure for circle in two dimensions.

Definition at line 33 of file JCircle2D.hh.

Constructor & Destructor Documentation

◆ JCircle2D() [1/6]

JGEOMETRY2D::JCircle2D::JCircle2D ( )
inline

Default constructor.

Definition at line 40 of file JCircle2D.hh.

40  :
41  JPosition2D(),
42  __r(0.0)
43  {}
JGEOMETRY2D::JPosition2D::JPosition2D
JPosition2D()
Default constructor.
Definition: JPosition2D.hh:44

◆ JCircle2D() [2/6]

JGEOMETRY2D::JCircle2D::JCircle2D ( const JVector2D &  point,
const double  r 
)
inline

Constructor.

Parameters
pointpoint
rradius

Definition at line 52 of file JCircle2D.hh.

53  :
54  JPosition2D(point),
55  __r(r)
56  {}
JTOOLS::r
data_type r[M+1]
Definition: JPolint.hh:868

◆ JCircle2D() [3/6]

JGEOMETRY2D::JCircle2D::JCircle2D ( const JVector2D &  p0,
const JVector2D &  p1 
)
inline

Constructor.

Determines circle through two points.

Parameters
p0first point
p1second point

Definition at line 66 of file JCircle2D.hh.

67  :
68  JPosition2D(),
69  __r(0.0)
70  {
71  set(p0, p1);
72  }
p1
TPaveText * p1
Definition: JDrawModule3D.cc:35
JGEOMETRY2D::JCircle2D::set
void set(const JVector2D &p0, const JVector2D &p1)
Set circle.
Definition: JCircle2D.hh:157

◆ JCircle2D() [4/6]

JGEOMETRY2D::JCircle2D::JCircle2D ( const JVector2D &  p0,
const JVector2D &  p1,
const JVector2D &  p2,
const double  precision = std::numeric_limits<double>::epsilon() 
)
inline

Constructor.

Determines circle through three points.

Parameters
p0first point
p1second point
p2third point
precisionprecision

Definition at line 84 of file JCircle2D.hh.

87  :
88  JPosition2D(),
89  __r(0.0)
90  {
91  set(p0, p1, p2, precision);
92  }

◆ JCircle2D() [5/6]

template<class T >
JGEOMETRY2D::JCircle2D::JCircle2D ( T  __begin,
T  __end,
const double  precision = std::numeric_limits<double>::epsilon() 
)
inline

Constructor.

Determines smallest enclosing circle around set of points.
The type of data should have the following member methods: 

    double getX();   // x coordinate
    double getY();   // y coordinate

Reference:
Computational Geometry Algorithms and Applications
Authors: de Berg, M., Cheong, O., van Kreveld, M., Overmars, M.

Parameters
__beginbegin of data
__endend of data
precisionprecision

Definition at line 114 of file JCircle2D.hh.

116  :
117  JPosition2D(),
118  __r(0.0)
119  {
120  set(__begin, __end, precision);
121  }

◆ JCircle2D() [6/6]

template<class JElement_t , class JAllocator_t >
JGEOMETRY2D::JCircle2D::JCircle2D ( const array_type< JElement_t, JAllocator_t > &  buffer,
const double  precision = std::numeric_limits<double>::epsilon() 
)
inline

Constructor.

Parameters
bufferinput data
precisionprecision

Definition at line 130 of file JCircle2D.hh.

131  :
132  JPosition2D(),
133  __r(0.0)
134  {
135  set(buffer.begin(), buffer.end(), precision);
136  }

Member Function Documentation

◆ getRadius()

double JGEOMETRY2D::JCircle2D::getRadius ( ) const
inline

Get radius.

Returns
radius

Definition at line 144 of file JCircle2D.hh.

145  {
146  return __r;
147  }

◆ set() [1/3]

void JGEOMETRY2D::JCircle2D::set ( const JVector2D &  p0,
const JVector2D &  p1 
)
inline

Set circle.

Determines circle through two points.

Parameters
p0first point
p1second point

Definition at line 157 of file JCircle2D.hh.

159  {
160  __x = 0.5 * (p0.getX() + p1.getX());
161  __y = 0.5 * (p0.getY() + p1.getY());
162  __r = this->getDistance(p0);
163  }
JGEOMETRY2D::JVector2D::getDistance
double getDistance(const JVector2D &point) const
Get distance to point.
Definition: JVector2D.hh:223
JGEOMETRY2D::JVector2D::getY
double getY() const
Get y position.
Definition: JVector2D.hh:74
JGEOMETRY2D::JVector2D::getX
double getX() const
Get x position.
Definition: JVector2D.hh:63

◆ set() [2/3]

void JGEOMETRY2D::JCircle2D::set ( const JVector2D &  p0,
const JVector2D &  p1,
const JVector2D &  p2,
const double  precision = std::numeric_limits<double>::epsilon() 
)
inline

Set circle.

Determines circle through three points.

Parameters
p0first point
p1second point
p2third point
precisionprecision

Definition at line 175 of file JCircle2D.hh.

179  {
180  const double x0 = p2.getX() - p1.getX();
181  const double x1 = p0.getX() - p2.getX();
182  const double x2 = p1.getX() - p0.getX();
183 
184  const double y0 = p1.getY() - p2.getY();
185  const double y1 = p2.getY() - p0.getY();
186  const double y2 = p0.getY() - p1.getY();
187 
188  const double D = 2.0 * (p0.getX()*y0 + p1.getX()*y1 + p2.getX()*y2);
189 
190  if (fabs(D) > precision) {
191 
192  const double a = p0.getLengthSquared();
193  const double b = p1.getLengthSquared();
194  const double c = p2.getLengthSquared();
195 
196  __x = (a*y0 + b*y1 + c*y2) / D;
197  __y = (a*x0 + b*x1 + c*x2) / D;
198  __r = this->getDistance(p0);
199 
200  } else {
201 
202  set(p0, p1);
203 
204  const JCircle2D c1(p1, p2);
205  const JCircle2D c2(p0, p2);
206 
207  if (c1.getRadius() > this->getRadius()) { *this = c1; }
208  if (c2.getRadius() > this->getRadius()) { *this = c2; }
209  }
210  }
c1
TCanvas * c1
Global variables to handle mouse events.
Definition: JDrawModule3D.cc:34
JGEOMETRY2D::JCircle2D
Data structure for circle in two dimensions.
Definition: JCircle2D.hh:35
JGEOMETRY2D::JVector2D::getLengthSquared
double getLengthSquared() const
Get length squared.
Definition: JVector2D.hh:188
GAUSS_LAGUERRE::a
const double a
Definition: JQuadrature.cc:42

◆ set() [3/3]

template<class T >
void JGEOMETRY2D::JCircle2D::set ( T  __begin,
T  __end,
const double  precision = std::numeric_limits<double>::epsilon() 
)
inline

Set circle.

Determines smallest enclosing circle around set of points. 

    double getX();   // x coordinate
    double getY();   // y coordinate
Parameters
__beginbegin of data
__endend of data
precisionprecision

Definition at line 226 of file JCircle2D.hh.

229  {
230  if (__begin != __end) {
231 
232  __x = __begin->getX();
233  __y = __begin->getY();
234  __r = 0.0;
235 
236  T i = __begin;
237 
238  const JVector2D p0(i->getX(), i->getY());
239 
240  while (++i != __end && p0.getDistance(JVector2D(i->getX(), i->getY())) <= precision) {}
241 
242  if (i != __end) {
243 
244  const JVector2D p1(i->getX(), i->getY());
245 
246  set(p0, p1);
247 
248  while (++i != __end) {
249 
250  const JVector2D p2(i->getX(), i->getY());
251 
252  if (this->getDistance(p2) > this->getRadius() + precision &&
253  p0.getDistance(p2) > precision &&
254  p1.getDistance(p2) > precision) {
255  configure(__begin, i, p2, precision);
256  }
257  }
258  }
259  }
260  }
JGEOMETRY2D::JCircle2D::configure
void configure(T __begin, T __end, const JVector2D &p0, const double precision)
Determine smallest enclosing circle.
Definition: JCircle2D.hh:358
JGEOMETRY2D::JCircle2D::getRadius
double getRadius() const
Get radius.
Definition: JCircle2D.hh:144
JGEOMETRY2D::JVector2D
Data structure for vector in two dimensions.
Definition: JVector2D.hh:34

◆ is_inside()

bool JGEOMETRY2D::JCircle2D::is_inside ( const JVector2D &  pos,
const double  precision = std::numeric_limits<double>::min() 
) const
inline

Check whether given point is inside circle.

Parameters
posposition
precisionprecision
Returns
true if inside; else false

Definition at line 270 of file JCircle2D.hh.

272  {
273  return (this->getDistance(pos) <= this->getRadius() + precision);
274  }

◆ configure() [1/2]

template<class T >
void JGEOMETRY2D::JCircle2D::configure ( T  __begin,
T  __end,
const JVector2D &  p0,
const double  precision 
)
inlineprivate

Determine smallest enclosing circle.

Parameters
__beginbegin of data
__endend of data
p0point on circle
precisionprecision

Definition at line 358 of file JCircle2D.hh.

362  {
363  this->set(JVector2D(__begin->getX(), __begin->getY()), p0);
364 
365  for (T i = __begin; ++i != __end; ) {
366 
367  const JVector2D p1(i->getX(), i->getY());
368 
369  if (this->getDistance(p1) > this->getRadius() + precision &&
370  p0.getDistanceSquared(p1) > precision) {
371  configure(__begin, i, p0, p1, precision);
372  }
373  }
374  }
JGEOMETRY2D::JVector2D::getDistanceSquared
double getDistanceSquared(const JVector2D &point) const
Get squared of distance to point.
Definition: JVector2D.hh:211
JGEOMETRY2D::JVector2D::JVector2D
JVector2D()
Default constructor.
Definition: JVector2D.hh:39

◆ configure() [2/2]

template<class T >
void JGEOMETRY2D::JCircle2D::configure ( T  __begin,
T  __end,
const JVector2D &  p0,
const JVector2D &  p1,
const double  precision 
)
inlineprivate

Determine smallest enclosing circle.

Parameters
__beginbegin of data
__endend of data
p0point on circle
p1point on circle
precisionprecision

Definition at line 387 of file JCircle2D.hh.

392  {
393  this->set(p0, p1);
394 
395  for (T i = __begin; i != __end; ++i) {
396 
397  const JVector2D p2(i->getX(), i->getY());
398 
399  if (this->getDistance(p2) > this->getRadius() + precision &&
400  p0.getDistanceSquared(p2) > precision &&
401  p1.getDistanceSquared(p2) > precision) {
402  this->set(p0, p1, p2, precision);
403  }
404  }
405  }

◆ getPosition() [1/2]

const JPosition2D& JGEOMETRY2D::JPosition2D::getPosition ( ) const
inlineinherited

Get position.

Returns
position

Definition at line 98 of file JPosition2D.hh.

99  {
100  return static_cast<const JPosition2D&>(*this);
101  }
JGEOMETRY2D::JPosition2D
Data structure for position in two dimensions.
Definition: JPosition2D.hh:33

◆ getPosition() [2/2]

JPosition2D& JGEOMETRY2D::JPosition2D::getPosition ( )
inlineinherited

Get position.

Returns
position

Definition at line 109 of file JPosition2D.hh.

110  {
111  return static_cast<JPosition2D&>(*this);
112  }

◆ setPosition()

void JGEOMETRY2D::JPosition2D::setPosition ( const JVector2D &  pos)
inlineinherited

Set position.

Parameters
posposition

Definition at line 120 of file JPosition2D.hh.

121  {
122  static_cast<JVector2D&>(*this) = pos;
123  }

◆ operator JAngle2D()

JGEOMETRY2D::JPosition2D::operator JAngle2D ( ) const
inlineinherited

Type conversion operator.

Returns
angle

Definition at line 131 of file JPosition2D.hh.

132  {
133  return JAngle2D(getX(), getY());
134  }
JGEOMETRY2D::JAngle2D
Data structure for angle in two dimensions.
Definition: JAngle2D.hh:35

◆ operator JVersor2D()

JGEOMETRY2D::JPosition2D::operator JVersor2D ( ) const
inlineinherited

Type conversion operator.

Returns
direction

Definition at line 142 of file JPosition2D.hh.

143  {
144  return JVersor2D(getX(), getY());
145  }
JGEOMETRY2D::JVersor2D
Data structure for normalised vector in two dimensions.
Definition: JVersor2D.hh:21

◆ rotate()

JPosition2D& JGEOMETRY2D::JPosition2D::rotate ( const JRotation2D &  R)
inlineinherited

Rotate.

Parameters
Rrotation matrix
Returns
this position

Definition at line 154 of file JPosition2D.hh.

155  {
156  R.rotate(__x, __y);
157 
158  return *this;
159  }
JGEOMETRY2D::JRotation2D::rotate
void rotate(double &__x, double &__y) const
Rotate.
Definition: JRotation2D.hh:96

◆ rotate_back()

JPosition2D& JGEOMETRY2D::JPosition2D::rotate_back ( const JRotation2D &  R)
inlineinherited

Rotate back.

Parameters
Rrotation matrix
Returns
this position

Definition at line 168 of file JPosition2D.hh.

169  {
170  R.rotate_back(__x, __y);
171 
172  return *this;
173  }
JGEOMETRY2D::JRotation2D::rotate_back
void rotate_back(double &__x, double &__y) const
Rotate back.
Definition: JRotation2D.hh:112

◆ getDot() [1/4]

double JGEOMETRY2D::JPosition2D::getDot ( const JAngle2D &  angle) const
inlineinherited

Get dot product.

Parameters
angleangle
Returns
dot product

Definition at line 182 of file JPosition2D.hh.

183  {
184  return
185  getX() * angle.getDX() +
186  getY() * angle.getDY();
187  }
JGEOMETRY2D::JAngle2D::getDY
double getDY() const
Get y direction.
Definition: JAngle2D.hh:94
JGEOMETRY2D::JAngle2D::getDX
double getDX() const
Get x direction.
Definition: JAngle2D.hh:83

◆ getDot() [2/4]

double JGEOMETRY2D::JPosition2D::getDot ( const JVersor2D &  versor) const
inlineinherited

Get dot product.

Parameters
versorversor
Returns
dot product

Definition at line 196 of file JPosition2D.hh.

197  {
198  return
199  getX() * versor.getDX() +
200  getY() * versor.getDY();
201  }
JGEOMETRY2D::JVersor2D::getDX
double getDX() const
Get x direction.
Definition: JVersor2D.hh:53
JGEOMETRY2D::JVersor2D::getDY
double getDY() const
Get y direction.
Definition: JVersor2D.hh:64

◆ getDot() [3/4]

double JGEOMETRY2D::JVector2D::getDot
inlineinherited

Get dot product.

Parameters
pointvector
Returns
dot product

Definition at line 235 of file JVector2D.hh.

236  {
237  return
238  getX() * point.getX() +
239  getY() * point.getY();
240  }

◆ getDot() [4/4]

double JGEOMETRY2D::JVector2D::getDot ( const JVector2D &  point) const
inlineinherited

Get dot product.

Parameters
pointvector
Returns
dot product

Definition at line 235 of file JVector2D.hh.

236  {
237  return
238  getX() * point.getX() +
239  getY() * point.getY();
240  }

◆ getPerpDot() [1/4]

double JGEOMETRY2D::JPosition2D::getPerpDot ( const JAngle2D &  angle) const
inlineinherited

Get perpendicular dot product.

Parameters
angleangle
Returns
perpendicular dot product

Definition at line 210 of file JPosition2D.hh.

211  {
212  return
213  getX() * angle.getDY() -
214  getY() * angle.getDX();
215  }

◆ getPerpDot() [2/4]

double JGEOMETRY2D::JPosition2D::getPerpDot ( const JVersor2D &  dir) const
inlineinherited

Get perpendicular dot product.

Parameters
dirdirection
Returns
perpendicular dot product

Definition at line 224 of file JPosition2D.hh.

225  {
226  return
227  getX() * dir.getDY() -
228  getY() * dir.getDX();
229  }

◆ getPerpDot() [3/4]

double JGEOMETRY2D::JVector2D::getPerpDot
inlineinherited

Get perpendicular dot product.

Parameters
pointvector
Returns
perpendicular dot product

Definition at line 249 of file JVector2D.hh.

250  {
251  return
252  getX() * point.getY() -
253  getY() * point.getX();
254  }

◆ getPerpDot() [4/4]

double JGEOMETRY2D::JVector2D::getPerpDot ( const JVector2D &  point) const
inlineinherited

Get perpendicular dot product.

Parameters
pointvector
Returns
perpendicular dot product

Definition at line 249 of file JVector2D.hh.

250  {
251  return
252  getX() * point.getY() -
253  getY() * point.getX();
254  }

◆ transform() [1/2]

JVector2D& JGEOMETRY2D::JVector2D::transform
inlineinherited

Transform.

Parameters
Tmatrix
Returns
this vector

Definition at line 160 of file JVector2D.hh.

161  {
162  T.transform(__x, __y);
163 
164  return *this;
165  }

◆ transform() [2/2]

JVector2D& JGEOMETRY2D::JVector2D::transform ( const JMatrix2D &  T)
inlineinherited

Transform.

Parameters
Tmatrix
Returns
this vector

Definition at line 160 of file JVector2D.hh.

161  {
162  T.transform(__x, __y);
163 
164  return *this;
165  }

◆ getX()

double JGEOMETRY2D::JVector2D::getX ( ) const
inlineinherited

Get x position.

Returns
x position

Definition at line 63 of file JVector2D.hh.

64  {
65  return __x;
66  }

◆ getY()

double JGEOMETRY2D::JVector2D::getY ( ) const
inlineinherited

Get y position.

Returns
y position

Definition at line 74 of file JVector2D.hh.

75  {
76  return __y;
77  }

◆ negate()

JVector2D& JGEOMETRY2D::JVector2D::negate ( )
inlineinherited

Negate vector.

Returns
this vector

Definition at line 85 of file JVector2D.hh.

86  {
87  __x = -__x;
88  __y = -__y;
89 
90  return *this;
91  }

◆ add()

JVector2D& JGEOMETRY2D::JVector2D::add ( const JVector2D &  vector)
inlineinherited

Add vector.

Parameters
vectorvector
Returns
this vector

Definition at line 100 of file JVector2D.hh.

101  {
102  __x += vector.getX();
103  __y += vector.getY();
104 
105  return *this;
106  }

◆ sub()

JVector2D& JGEOMETRY2D::JVector2D::sub ( const JVector2D &  vector)
inlineinherited

Subtract vector.

Parameters
vectorvector
Returns
this vector

Definition at line 115 of file JVector2D.hh.

116  {
117  __x -= vector.getX();
118  __y -= vector.getY();
119 
120  return *this;
121  }

◆ mul() [1/2]

JVector2D& JGEOMETRY2D::JVector2D::mul ( const double  factor)
inlineinherited

Scale vector.

Parameters
factormultiplication factor
Returns
this vector

Definition at line 130 of file JVector2D.hh.

131  {
132  __x *= factor;
133  __y *= factor;
134 
135  return *this;
136  }

◆ mul() [2/2]

template<class JFirst_t , class JSecond_t >
JFirst_t& JMATH::JMath< JFirst_t, JSecond_t >::mul ( const JSecond_t &  object)
inlineinherited

Multiply with object.

Parameters
objectobject
Returns
result object

Definition at line 354 of file JMath.hh.

355  {
356  return static_cast<JFirst_t&>(*this) = JFirst_t().mul(static_cast<const JFirst_t&>(*this), object);
357  }

◆ div()

JVector2D& JGEOMETRY2D::JVector2D::div ( const double  factor)
inlineinherited

Scale vector.

Parameters
factordivision factor
Returns
this vector

Definition at line 145 of file JVector2D.hh.

146  {
147  __x /= factor;
148  __y /= factor;
149 
150  return *this;
151  }

◆ equals()

bool JGEOMETRY2D::JVector2D::equals ( const JVector2D &  vector,
const double  precision = std::numeric_limits<double>::min() 
) const
inlineinherited

Check equality.

Parameters
vectorvector
precisionprecision
Returns
true if vectors are equal; else false

Definition at line 175 of file JVector2D.hh.

177  {
178  return (fabs(getX() - vector.getX()) <= precision &&
179  fabs(getY() - vector.getY()) <= precision);
180  }

◆ getLengthSquared()

double JGEOMETRY2D::JVector2D::getLengthSquared ( ) const
inlineinherited

Get length squared.

Returns
square of length

Definition at line 188 of file JVector2D.hh.

189  {
190  return getX()*getX() + getY()*getY();
191  }

◆ getLength()

double JGEOMETRY2D::JVector2D::getLength ( ) const
inlineinherited

Get length.

Returns
length

Definition at line 199 of file JVector2D.hh.

200  {
201  return sqrt(getLengthSquared());
202  }

◆ getDistanceSquared()

double JGEOMETRY2D::JVector2D::getDistanceSquared ( const JVector2D &  point) const
inlineinherited

Get squared of distance to point.

Parameters
pointpoint
Returns
square of distance

Definition at line 211 of file JVector2D.hh.

212  {
213  return JVector2D(point).sub(*this).getLengthSquared();
214  }

◆ getDistance()

double JGEOMETRY2D::JVector2D::getDistance ( const JVector2D &  point) const
inlineinherited

Get distance to point.

Parameters
pointpoint
Returns
distance

Definition at line 223 of file JVector2D.hh.

224  {
225  return sqrt(getDistanceSquared(point));
226  }

Friends And Related Function Documentation

◆ operator>> [1/2]

std::istream& operator>> ( std::istream &  in,
JCircle2D &  circle 
)
friend

Read circle from input stream.

Parameters
ininput stream
circlecircle
Returns
input stream

Definition at line 284 of file JCircle2D.hh.

285  {
286  in >> static_cast<JPosition2D&>(circle);
287  in >> circle.__r;
288 
289  return in;
290  }

◆ operator<< [1/2]

std::ostream& operator<< ( std::ostream &  out,
const JCircle2D &  circle 
)
friend

Write circle to output stream.

Parameters
outoutput stream
circlecircle
Returns
output stream

Definition at line 300 of file JCircle2D.hh.

301  {
302  const JFormat format(out, getFormat<JPosition2D>(JFormat_t(9, 3, std::ios::fixed | std::ios::showpos)));
303 
304  out << static_cast<const JPosition2D&>(circle);
305  out << ' ';
306  out << format << circle.getRadius();
307 
308  return out;
309  }
JFormat_t
Data structure for format specifications.
Definition: JManip.hh:524
JFormat
Auxiliary class to temporarily define format specifications.
Definition: JManip.hh:636

◆ operator>> [2/2]

JReader& operator>> ( JReader &  in,
JCircle2D &  circle 
)
friend

Read circle from input.

Parameters
inreader
circlecircle
Returns
reader

Definition at line 319 of file JCircle2D.hh.

320  {
321  in >> static_cast<JPosition2D&>(circle);
322  in >> circle.__r;
323 
324  return in;
325  }

◆ operator<< [2/2]

JWriter& operator<< ( JWriter &  out,
const JCircle2D &  circle 
)
friend

Write circle to output.

Parameters
outwriter
circlecircle
Returns
writer

Definition at line 335 of file JCircle2D.hh.

336  {
337  out << static_cast<const JPosition2D&>(circle);
338  out << circle.__r;
339 
340  return out;
341  }

Member Data Documentation

◆ __r

double JGEOMETRY2D::JCircle2D::__r
protected

Definition at line 345 of file JCircle2D.hh.

◆ __x

double JGEOMETRY2D::JVector2D::__x
protectedinherited

Definition at line 257 of file JVector2D.hh.

◆ __y

double JGEOMETRY2D::JVector2D::__y
protectedinherited

Definition at line 258 of file JVector2D.hh.

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