Defines circle. More...

#include <geomObjects.h>

Inheritance diagram for util::geometry::Circle:

Collaboration diagram for util::geometry::Circle:

Public Member Functions
	Circle ()
	Constructor.

	Circle (double r, util::Point x=util::Point(), std::string description="")
	Constructor.

double	volume () const override
	Computes the volume (area in 2d, length in 1d) of object.

util::Point	center () const override
	Computes the center of object.

std::pair< util::Point, util::Point >	box () const override
	Computes the bounding box of object.

std::pair< util::Point, util::Point >	box (const double &tol) const override
	Computes the bounding box of object.

double	inscribedRadius () const override
	Computes the radius of biggest circle/sphere completely within the object.

double	boundingRadius () const override
	Computes the radius of smallest circle/sphere such that object can be fit into it.

std::string	printStr (int nt, int lvl) const override
	Returns the string containing printable information about the object.

void	print (int nt, int lvl) const override
	Prints the information about the object.

void	print () const override
	Prints the information about the object.

Interaction with point
bool	isInside (const util::Point &x) const override
	Checks if point is inside this object.

bool	isOutside (const util::Point &x) const override
	Checks if point is outside of this object.

bool	isNear (const util::Point &x, const double &tol) const override
	Checks if point is within given distance of this object.

bool	isNearBoundary (const util::Point &x, const double &tol, const bool &within) const override
	cons

bool	doesIntersect (const util::Point &x) const override
	Checks if point lies exactly on the boundary.

Interaction with box
bool	isInside (const std::pair< util::Point, util::Point > &box) const override
	Checks if box is completely inside.

bool	isOutside (const std::pair< util::Point, util::Point > &box) const override
	Checks if box is outside of the object.

bool	isNear (const std::pair< util::Point, util::Point > &box, const double &tol) const override
	Checks if box is within given distance of this object.

bool	doesIntersect (const std::pair< util::Point, util::Point > &box) const override
	Checks if box intersects this object.

Public Member Functions inherited from util::geometry::GeomObject
	GeomObject (std::string name="", std::string description="")
	Constructor.

Data Fields
util::Point	d_x
	Center.

double	d_r
	Radius.

Data Fields inherited from util::geometry::GeomObject
const std::string	d_name
	name of object

const std::string	d_description
	Further description of object.

std::vector< std::string >	d_tags
	Tags/attributes about the object.

Detailed Description

Defines circle.

Definition at line 1906 of file geomObjects.h.

Constructor & Destructor Documentation

◆ Circle() [1/2]

util::geometry::Circle::Circle ( )

inline

Constructor.

Definition at line 1912 of file geomObjects.h.

                    : GeomObject("circle", ""),
                      d_x(util::Point()),
                      d_r(0.) {};

◆ Circle() [2/2]

util::geometry::Circle::Circle	(	double	r,
		util::Point	x = `util::Point()`,
		std::string	description = `""`
	)

inline

Constructor.

Parameters

r	Radius
x	Center
description	Description of object (e.g., further classification or any tag)

Definition at line 1924 of file geomObjects.h.

                    : GeomObject("circle", description),
                      d_x(x),
                      d_r(r) {};

Member Function Documentation

◆ boundingRadius()

double util::geometry::Circle::boundingRadius ( ) const

overridevirtual

Computes the radius of smallest circle/sphere such that object can be fit into it.

Returns: Radius Radius of bounding circle/sphere

Reimplemented from util::geometry::GeomObject.

Definition at line 1226 of file geomObjects.cpp.

                                                    {
 
      return d_r;
    }

◆ box() [1/2]

std::pair< util::Point, util::Point > util::geometry::Circle::box ( ) const

overridevirtual

Computes the bounding box of object.

Returns: Pair Left-bottom-back and right-top-front corner points of box

Reimplemented from util::geometry::GeomObject.

Definition at line 1207 of file geomObjects.cpp.

                                                                {
 
      return box(0.);
    }

◆ box() [2/2]

std::pair< util::Point, util::Point > util::geometry::Circle::box ( const double & tol ) const

overridevirtual

Computes the bounding box of object.

Parameters

tol	Tolerance/padding used in creating bounding box

Returns: Pair Left-bottom-back and right-top-front corner points of box

Reimplemented from util::geometry::GeomObject.

Definition at line 1212 of file geomObjects.cpp.

                                                                                       {
      double r = d_r + tol;
      return {
              util::Point(d_x.d_x - r, d_x.d_y - r, 0.),
              util::Point(d_x.d_x + r, d_x.d_y + r, 0.)
      };
    }

◆ center()

util::Point util::geometry::Circle::center ( ) const

overridevirtual

Computes the center of object.

Returns: Point Coordinates of center

Reimplemented from util::geometry::GeomObject.

Definition at line 1203 of file geomObjects.cpp.

                                               {
      return d_x;
    }

◆ doesIntersect() [1/2]

bool util::geometry::Circle::doesIntersect ( const std::pair< util::Point, util::Point > & box ) const

overridevirtual

Checks if box intersects this object.

Parameters

box Box

Returns: True True if intersects

Reimplemented from util::geometry::GeomObject.

Definition at line 1321 of file geomObjects.cpp.

                                                            {
 
      // need to check all four corner points
      for (auto p: util::getCornerPoints(2, box))
        if (this->isInside(p))
          return true;
 
      return false;
    }

References util::getCornerPoints().

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◆ doesIntersect() [2/2]

bool util::geometry::Circle::doesIntersect ( const util::Point & x ) const

overridevirtual

Checks if point lies exactly on the boundary.

Parameters

x Point

Returns: True True if it lies on the boundary

Reimplemented from util::geometry::GeomObject.

Definition at line 1264 of file geomObjects.cpp.

                                                                   {
 
      return isNearBoundary(x, 1.0E-8, false);
    }

◆ inscribedRadius()

double util::geometry::Circle::inscribedRadius ( ) const

overridevirtual

Computes the radius of biggest circle/sphere completely within the object.

Returns: Radius Radius of inscribed circle/sphere

Reimplemented from util::geometry::GeomObject.

Definition at line 1221 of file geomObjects.cpp.

                                                     {
 
      return d_r;
    }

◆ isInside() [1/2]

bool util::geometry::Circle::isInside ( const std::pair< util::Point, util::Point > & box ) const

overridevirtual

Checks if box is completely inside.

Parameters

box Box

Returns: True True if box lies inside

Reimplemented from util::geometry::GeomObject.

Definition at line 1269 of file geomObjects.cpp.

                                                            {
 
      for (auto p: util::getCornerPoints(2, box))
        if (!this->isInside(p))
          return false;
 
      return true;
    }

References util::getCornerPoints().

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◆ isInside() [2/2]

bool util::geometry::Circle::isInside ( const util::Point & x ) const

overridevirtual

Checks if point is inside this object.

Parameters

x Point

Returns: True If point lies inside

Reimplemented from util::geometry::GeomObject.

Definition at line 1231 of file geomObjects.cpp.

                                                              {
 
      return util::isLess(d_x.dist(x), d_r + 1.0E-12);
    }

References util::isLess().

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◆ isNear() [1/2]

bool util::geometry::Circle::isNear	(	const std::pair< util::Point, util::Point > &	box,
		const double &	tol
	)		const

overridevirtual

Checks if box is within given distance of this object.

Parameters

box	Box
tol	Tolerance used in checking the nearness

Returns: True True if box is inside within the tol distance

Reimplemented from util::geometry::GeomObject.

Definition at line 1290 of file geomObjects.cpp.

                                     {
 
      if (this->isInside(box))
        return true;
 
      // get corner points of box
      auto cp = getCornerPoints(2, box);
 
      for (auto p: cp) {
 
        // check the distance of corner point with the center
        auto dx = p - d_x;
        if (util::isLess(dx.length(), d_r + tol))
          return true;
      }
 
      // check center to center distance
      auto dxc = util::getCenter(2, box) - d_x;
 
      // check wrt inscribed circle
      auto r = util::inscribedRadiusInBox(2, box);
      if (util::isLess(dxc.length(), d_r + r + tol))
        return true;
 
      // check wrt circumscribed circle
      r = util::circumscribedRadiusInBox(2, box);
      return util::isLess(dxc.length(), d_r + r + tol);
    }

References util::circumscribedRadiusInBox(), util::getCenter(), util::getCornerPoints(), util::inscribedRadiusInBox(), and util::isLess().

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◆ isNear() [2/2]

bool util::geometry::Circle::isNear	(	const util::Point &	x,
		const double &	tol
	)		const

overridevirtual

Checks if point is within given distance of this object.

Parameters

x	Point
tol	Tolerance used in checking the nearness

Returns: True True if within the tol distance

Reimplemented from util::geometry::GeomObject.

Definition at line 1240 of file geomObjects.cpp.

                                                                 {
 
      // translate to origin
      auto x0 = x - d_x;
 
      return util::isLess(x0.length(), d_r + tol);
    }

References util::isLess().

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◆ isNearBoundary()

bool util::geometry::Circle::isNearBoundary	(	const util::Point &	x,
		const double &	tol,
		const bool &	within
	)		const

overridevirtual

cons

Reimplemented from util::geometry::GeomObject.

Definition at line 1249 of file geomObjects.cpp.

                                                               {
 
      // check if particle is within the tolerance distance
      if (!isNear(x, within ? 0. : tol))
        return false;
 
      // check if it is close enough to circumference
      auto x0 = x - d_x;
 
      return util::isLess(x0.length(), d_r + tol) ||
             util::isLess(x0.length(), d_r - tol);
    }

References util::isLess().

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◆ isOutside() [1/2]

bool util::geometry::Circle::isOutside ( const std::pair< util::Point, util::Point > & box ) const

overridevirtual

Checks if box is outside of the object.

Parameters

box Box

Returns: True True if box lies outside

Reimplemented from util::geometry::GeomObject.

Definition at line 1279 of file geomObjects.cpp.

                                                            {
 
      bool intersect = false;
      for (auto p: util::getCornerPoints(2, box))
        if (!intersect)
          intersect = this->isInside(p);
 
      return !intersect;
    }

References util::getCornerPoints().

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◆ isOutside() [2/2]

bool util::geometry::Circle::isOutside ( const util::Point & x ) const

overridevirtual

Checks if point is outside of this object.

Parameters

x Point

Returns: True If point lies outside

Reimplemented from util::geometry::GeomObject.

Definition at line 1236 of file geomObjects.cpp.

                                                               {
      return !isInside(x);
    }

◆ print() [1/2]

void util::geometry::Circle::print ( ) const

inlineoverridevirtual

Prints the information about the object.

Reimplemented from util::geometry::GeomObject.

Definition at line 2047 of file geomObjects.h.

2047{ print(0, 0); };

util::geometry::Circle::print

void print() const override

Prints the information about the object.

Definition geomObjects.h:2047

References print().

Referenced by print().

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◆ print() [2/2]

void util::geometry::Circle::print	(	int	nt,
		int	lvl
	)		const

inlineoverridevirtual

Prints the information about the object.

Parameters

nt	Number of tabs to append before printing
lvl	Information level (higher means more information)

Reimplemented from util::geometry::GeomObject.

Definition at line 2040 of file geomObjects.h.

                                                       {
              std::cout << printStr(nt, lvl);
            };

References printStr().

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◆ printStr()

std::string util::geometry::Circle::printStr	(	int	nt,
		int	lvl
	)		const

overridevirtual

Returns the string containing printable information about the object.

Parameters

nt	Number of tabs to append before printing
lvl	Information level (higher means more information)

Returns: string String containing printable information about the object

Reimplemented from util::geometry::GeomObject.

Definition at line 1332 of file geomObjects.cpp.

                                                                {
 
      auto tabS = util::io::getTabS(nt);
 
      std::ostringstream oss;
 
      oss << tabS << "------- Circle --------" << std::endl << std::endl;
      oss << tabS << "Name = " << d_name << std::endl;
      oss << tabS << "Center = " << d_x.printStr(0, lvl) << std::endl;
      oss << tabS << "Radius = " << d_r << std::endl;
 
      if (lvl > 0)
        oss << tabS << "Bounding box: "
            << util::io::printBoxStr(box(0.), nt + 1);
 
      if (lvl == 0)
        oss << std::endl;
 
      return oss.str();
    }

References util::io::getTabS(), and util::io::printBoxStr().

Referenced by print().

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◆ volume()

double util::geometry::Circle::volume ( ) const

overridevirtual

Computes the volume (area in 2d, length in 1d) of object.

Returns: Volume Volume of object

Reimplemented from util::geometry::GeomObject.

Definition at line 1199 of file geomObjects.cpp.

                                            {
      return M_PI * d_r * d_r;
    }

Field Documentation

◆ d_r

double util::geometry::Circle::d_r

Radius.

Definition at line 2053 of file geomObjects.h.

◆ d_x

util::Point util::geometry::Circle::d_x

Center.

Definition at line 2050 of file geomObjects.h.

The documentation for this class was generated from the following files:

/home/user/project/src/util/geomObjects.h
/home/user/project/src/util/geomObjects.cpp

Public Member Functions

Data Fields

Detailed Description

Constructor & Destructor Documentation

◆ Circle() [1/2]

◆ Circle() [2/2]

Member Function Documentation

◆ boundingRadius()

◆ box() [1/2]

◆ box() [2/2]

◆ center()

◆ doesIntersect() [1/2]

◆ doesIntersect() [2/2]

◆ inscribedRadius()

◆ isInside() [1/2]

◆ isInside() [2/2]

◆ isNear() [1/2]

◆ isNear() [2/2]

◆ isNearBoundary()

◆ isOutside() [1/2]

◆ isOutside() [2/2]

◆ print() [1/2]

◆ print() [2/2]

◆ printStr()

◆ volume()

Field Documentation

◆ d_r

◆ d_x