geom::ComplexGeomObject Class Reference

Defines complex geometrical object. More...

#include <complexGeomObjects.h>

Inheritance diagram for geom::ComplexGeomObject:

Collaboration diagram for geom::ComplexGeomObject:

Public Member Functions
	ComplexGeomObject ()
	Constructor.
	ComplexGeomObject (std::vector< std::shared_ptr< GeomObject > > &obj, std::vector< std::string > obj_flag, std::string description="")
	Constructor.
	ComplexGeomObject (const ComplexGeomObject &other)
	Copy constructor.
ComplexGeomObject &	operator= (const ComplexGeomObject &other)
	Assignment operator.
void	transform (const util::Point &translation, const double &scale, const double &angle, const util::Point &axis, const util::Point *rotationPoint) override
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 geom::GeomObject
	GeomObject (std::string name="", std::string description="")
	Constructor.
virtual bool	wallContactQuery (const util::Point &x, WallContactHit &hit) const
	Closest-point / signed-gap query for analytical wall contact. Default: unsupported (returns false, clears hit).

Data Fields
std::vector< std::shared_ptr< GeomObject > >	d_obj
	Object.
std::vector< std::string >	d_objFlag
	Object flag.
std::vector< int >	d_objFlagInt
	Object integer flags. Here, +1 means object is filling and -1 means object is void.
size_t	d_dim
	Dimension objects live in.
Data Fields inherited from geom::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 complex geometrical object.

Definition at line 263 of file complexGeomObjects.h.

Constructor & Destructor Documentation

ComplexGeomObject() [1/3]

geom::ComplexGeomObject::ComplexGeomObject ( )

inline

Constructor.

Definition at line 291 of file complexGeomObjects.h.

                        : GeomObject("complex", ""), d_dim(0) {
    };

ComplexGeomObject() [2/3]

geom::ComplexGeomObject::ComplexGeomObject ( std::vector< std::shared_ptr< GeomObject > > &  obj, std::vector< std::string >  obj_flag, std::string  description = ""  )

inline

Constructor.

Parameters

obj	Vector of geometrical objects
obj_flag	Specifies which objects are filling and which are void
description	Description of object (e.g., further classification or any tag)

Definition at line 301 of file complexGeomObjects.h.

      : GeomObject("complex", description),
        d_obj(obj),
        d_objFlag(obj_flag),
        d_dim(0) {
 
      d_dim = getGeomTypeToDim(d_obj[0]->d_name); // assume all types have same dim
 
      for (const auto &s: d_objFlag)
        if (s == "plus")
          d_objFlagInt.push_back(1);
        else if (s == "minus")
          d_objFlagInt.push_back(-1);
        else {
          std::cerr
              << "Error: Check object flag " + s +
              " passed to create ComplexGeomObject\n";
          exit(1);
        }
    };

References d_dim, geom::GeomObject::d_name, d_obj, d_objFlag, d_objFlagInt, and geom::getGeomTypeToDim().

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ComplexGeomObject() [3/3]

geom::ComplexGeomObject::ComplexGeomObject ( const ComplexGeomObject &  other )

inline

Copy constructor.

Parameters

other

Object to copy from

Definition at line 328 of file complexGeomObjects.h.

      : GeomObject(other.d_name, other.d_description),
        d_objFlag(other.d_objFlag),
        d_objFlagInt(other.d_objFlagInt),
        d_dim(other.d_dim) {
      d_tags = other.d_tags;
 
      // Deep copy each geometric object
      d_obj.reserve(other.d_obj.size());
      for (const auto& obj : other.d_obj) {
        if (obj) {
          // Create a raw pointer copy first
          GeomObject* raw_copy = createGeomDeepCopy(obj.get());
          // Convert to shared_ptr and store
          d_obj.push_back(std::shared_ptr<GeomObject>(raw_copy));
        } else {
          d_obj.push_back(nullptr);
        }
      }
    }

References geom::createGeomDeepCopy(), d_obj, and geom::GeomObject::d_tags.

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Member Function Documentation

boundingRadius()

double geom::ComplexGeomObject::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 geom::GeomObject.

Definition at line 251 of file complexGeomObjects.cpp.

                                                   {
 
      auto box = this->box();
      return 0.5 * (box.first - box.second).length();
    }

References box().

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box() [1/2]

std::pair< util::Point, util::Point > geom::ComplexGeomObject::box ( ) const

overridevirtual

Computes the bounding box of object.

Returns

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

Reimplemented from geom::GeomObject.

Definition at line 217 of file complexGeomObjects.cpp.

                     {
 
      return box(0.);
    }

References box().

Referenced by boundingRadius(), box(), doesIntersect(), inscribedRadius(), isInside(), isNear(), isOutside(), and printStr().

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box() [2/2]

std::pair< util::Point, util::Point > geom::ComplexGeomObject::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 geom::GeomObject.

Definition at line 223 of file complexGeomObjects.cpp.

                                      {
 
      auto p1 = d_obj[0]->box(tol).first;
      auto p2 = d_obj[0]->box(tol).second;
 
      for (size_t i = 1; i < d_objFlag.size(); i++) {
 
        auto q1 = d_obj[i]->box(tol).first;
        auto q2 = d_obj[i]->box(tol).second;
 
        for (size_t i = 0; i < 3; i++) {
          if (q1[i] < p1[i])
            p1[i] = q1[i];
          if (q2[i] > p2[i])
            p2[i] = q2[i];
        }
      }
 
      return std::make_pair(p1, p2);
    }

References d_obj, and d_objFlag.

center()

util::Point geom::ComplexGeomObject::center ( ) const

overridevirtual

Computes the center of object.

Returns

Point Coordinates of center

Reimplemented from geom::GeomObject.

Definition at line 194 of file complexGeomObjects.cpp.

                                              {
 
      // use formula for centroid of composite objects
      auto vol = volume();
      if (util::isGreater(vol, 0.)) {
        auto center = util::Point();
        for (size_t i = 0; i < d_objFlag.size(); i++)
          center += d_obj[i]->volume() * d_objFlagInt[i] * d_obj[i]->center();
        return (1./vol) * center;
      }
      else {
 
        // find biggest object that has positive d_objFlagInt
        // (that is it is a filling and not void object)
        std::vector<double> vol_vec(d_obj.size());
        for (size_t i = 0; i < d_obj.size(); i++)
          vol_vec[i] = d_obj[i]->volume() * d_objFlagInt[i];
 
        auto max_vol_obj = util::methods::maxIndex(vol_vec);
        return d_obj[max_vol_obj]->center();
      }
    }

References center(), d_obj, d_objFlag, d_objFlagInt, util::isGreater(), util::methods::maxIndex(), and volume().

Referenced by center(), printStr(), and transform().

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doesIntersect() [1/2]

bool geom::ComplexGeomObject::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 geom::GeomObject.

Definition at line 348 of file complexGeomObjects.cpp.

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

References box(), d_dim, geom::getCornerPoints(), and isInside().

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doesIntersect() [2/2]

bool geom::ComplexGeomObject::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 geom::GeomObject.

Definition at line 308 of file complexGeomObjects.cpp.

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

References isNearBoundary().

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inscribedRadius()

double geom::ComplexGeomObject::inscribedRadius ( ) const

overridevirtual

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

Returns

Radius Radius of inscribed circle/sphere

Reimplemented from geom::GeomObject.

Definition at line 245 of file complexGeomObjects.cpp.

                                                    {
 
      auto box = this->box();
      return 0.5 * (box.first - box.second).length();
    }

References box().

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isInside() [1/2]

bool geom::ComplexGeomObject::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 geom::GeomObject.

Definition at line 314 of file complexGeomObjects.cpp.

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

References box(), d_dim, geom::getCornerPoints(), and isInside().

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isInside() [2/2]

bool geom::ComplexGeomObject::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 geom::GeomObject.

Definition at line 258 of file complexGeomObjects.cpp.

                                                        {
 
      // point inside means x should be inside in the object with plus flag and
      // outside in the object with minus flag
      bool point_inside = d_obj[0]->isInside(x);
      for (size_t i = 1; i < d_objFlag.size(); i++) {
 
        const auto &obj_i = d_obj[i];
        if (d_objFlagInt[i] < 0)
          point_inside = point_inside and !obj_i->isInside(x);
        else
          point_inside = point_inside or obj_i->isInside(x);
      }
 
      return point_inside;
    }

References d_obj, d_objFlag, and d_objFlagInt.

Referenced by doesIntersect(), isInside(), isOutside(), and isOutside().

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isNear() [1/2]

bool geom::ComplexGeomObject::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 geom::GeomObject.

Definition at line 334 of file complexGeomObjects.cpp.

                                     {
 
      bool is_near = d_obj[0]->isNear(box, tol);
      for (size_t i = 1; i < d_objFlag.size(); i++) {
 
        const auto &obj_i = d_obj[i];
        is_near = is_near or obj_i->isNear(box, tol);
      }
 
      return is_near;
    }

References box(), d_obj, and d_objFlag.

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isNear() [2/2]

bool geom::ComplexGeomObject::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 geom::GeomObject.

Definition at line 280 of file complexGeomObjects.cpp.

                                                                            {
 
      bool is_near = d_obj[0]->isNear(x, tol);
      for (size_t i = 1; i < d_objFlag.size(); i++) {
 
        const auto &obj_i = d_obj[i];
        is_near = is_near or obj_i->isNear(x, tol);
      }
 
      return is_near;
    }

References d_obj, and d_objFlag.

isNearBoundary()

bool geom::ComplexGeomObject::isNearBoundary ( const util::Point &  x, const double &  tol, const bool &  within  ) const

overridevirtual

cons

cons

Reimplemented from geom::GeomObject.

Definition at line 293 of file complexGeomObjects.cpp.

                                                                          {
 
      bool is_near = d_obj[0]->isNearBoundary(x, tol, within);
      for (size_t i = 1; i < d_objFlag.size(); i++) {
 
        const auto &obj_i = d_obj[i];
        is_near = is_near or obj_i->isNearBoundary(x, tol, within);
      }
 
      return is_near;
    }

References d_obj, and d_objFlag.

Referenced by doesIntersect().

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isOutside() [1/2]

bool geom::ComplexGeomObject::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 geom::GeomObject.

Definition at line 324 of file complexGeomObjects.cpp.

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

References box(), d_dim, geom::getCornerPoints(), and isInside().

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isOutside() [2/2]

bool geom::ComplexGeomObject::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 geom::GeomObject.

Definition at line 276 of file complexGeomObjects.cpp.

                                                         {
      return !isInside(x);
    }

References isInside().

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operator=()

ComplexGeomObject & geom::ComplexGeomObject::operator= ( const ComplexGeomObject &  other )

inline

Assignment operator.

Parameters

other

Object to copy from

Returns

Reference to this object

Definition at line 354 of file complexGeomObjects.h.

                                                                 {
      if (this != &other) {
        // Copy base class members
        d_tags = other.d_tags;
        
        // Copy flags and dimension
        d_objFlag = other.d_objFlag;
        d_objFlagInt = other.d_objFlagInt;
        d_dim = other.d_dim;
 
        // Deep copy each geometric object
        d_obj.clear();
        d_obj.reserve(other.d_obj.size());
        for (const auto& obj : other.d_obj) {
          if (obj) {
            // Create a raw pointer copy first
            GeomObject* raw_copy = createGeomDeepCopy(obj.get());
            // Convert to shared_ptr and store
            d_obj.push_back(std::shared_ptr<GeomObject>(raw_copy));
          } else {
            d_obj.push_back(nullptr);
          }
        }
      }
      return *this;
    }

References geom::createGeomDeepCopy(), d_dim, d_obj, d_objFlag, d_objFlagInt, and geom::GeomObject::d_tags.

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print() [1/2]

void geom::ComplexGeomObject::print ( ) const

inlineoverridevirtual

Prints the information about the object.

Reimplemented from geom::GeomObject.

Definition at line 515 of file complexGeomObjects.h.

{ print(0, 0); };

References print().

Referenced by print().

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print() [2/2]

void geom::ComplexGeomObject::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 geom::GeomObject.

Definition at line 508 of file complexGeomObjects.h.

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

References printStr().

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printStr()

std::string geom::ComplexGeomObject::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 geom::GeomObject.

Definition at line 360 of file complexGeomObjects.cpp.

                                                     {
 
      auto tabS = util::io::getTabS(nt);
 
      std::ostringstream oss;
 
      oss << tabS << "------- ComplexGeomObject --------" << std::endl
          << std::endl;
      oss << tabS << "Name = " << d_name << std::endl;
      oss << tabS << "Center = " << center().printStr() << std::endl;
      oss << tabS << "Object info:" << std::endl;
      auto ocount = 0;
      for (const auto &p: d_obj) {
        oss << tabS << "Object id: " << ocount << std::endl;
        oss << tabS << "Object flag: " << d_objFlag[ocount] << std::endl;
        oss << tabS << "Object int flag: " << d_objFlagInt[ocount] << std::endl;
        oss << p->printStr(nt + 1, lvl);
        ocount++;
      }
 
      if (lvl > 0)
        oss << tabS << "Bounding box: "
            << util::io::printBoxStr(box(0.), nt + 1);
 
      if (lvl == 0)
        oss << std::endl;
 
      return oss.str();
    }

References box(), center(), geom::GeomObject::d_name, d_obj, d_objFlag, d_objFlagInt, util::io::getTabS(), util::io::printBoxStr(), and util::Point::printStr().

Referenced by print().

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transform()

void geom::ComplexGeomObject::transform ( const util::Point &  translation, const double &  scale, const double &  angle, const util::Point &  axis, const util::Point *  rotationPoint  )

inlineoverridevirtual

If rotationPoint is null, pivot is center() (signed-volume centroid of the composite).

Reimplemented from geom::GeomObject.

Definition at line 384 of file complexGeomObjects.h.

                                                           {
      const util::Point *pivot = rotationPoint;
      util::Point pivotStore;
      if (pivot == nullptr) {
        pivotStore = center();
        pivot = &pivotStore;
      }
      for (auto &obj : d_obj) {
        if (obj) obj->transform(translation, scale, angle, axis, pivot);
      }
    }

References center(), and d_obj.

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volume()

double geom::ComplexGeomObject::volume ( ) const

overridevirtual

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

Returns

Volume Volume of object

Reimplemented from geom::GeomObject.

Definition at line 185 of file complexGeomObjects.cpp.

                                           {
 
      double volume = 0.;
      for (size_t i = 0; i < d_objFlag.size(); i++)
        volume += d_obj[i]->volume() * d_objFlagInt[i];
 
      return volume;
    }

References d_obj, d_objFlag, d_objFlagInt, and volume().

Referenced by center(), and volume().

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Field Documentation

d_dim

size_t geom::ComplexGeomObject::d_dim

Dimension objects live in.

Definition at line 285 of file complexGeomObjects.h.

Referenced by ComplexGeomObject(), doesIntersect(), isInside(), isOutside(), and operator=().

d_obj

std::vector<std::shared_ptr<GeomObject> > geom::ComplexGeomObject::d_obj

Object.

Definition at line 267 of file complexGeomObjects.h.

Referenced by box(), mesh_gen::anonymous_namespace{builtinGmshGeometry.cpp}::buildComplexRectangles2DOcc(), center(), ComplexGeomObject(), ComplexGeomObject(), isInside(), isNear(), isNear(), isNearBoundary(), operator=(), printStr(), transform(), and volume().

d_objFlag

std::vector<std::string> geom::ComplexGeomObject::d_objFlag

Object flag.

Ordering of objects is important. To describe a rectangle with circular hole, we will have d_obj = {rectangle, circle} and have flag = {plus, minus}. This means final object is rectangle - circle

Definition at line 277 of file complexGeomObjects.h.

Referenced by box(), center(), ComplexGeomObject(), isInside(), isNear(), isNear(), isNearBoundary(), operator=(), printStr(), and volume().

d_objFlagInt

std::vector<int> geom::ComplexGeomObject::d_objFlagInt

Object integer flags. Here, +1 means object is filling and -1 means object is void.

Definition at line 282 of file complexGeomObjects.h.

Referenced by mesh_gen::anonymous_namespace{builtinGmshGeometry.cpp}::buildComplexRectangles2DOcc(), center(), ComplexGeomObject(), isInside(), operator=(), printStr(), and volume().

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

• /home/user/project/src/geom/complexGeomObjects.h
• /home/user/project/src/geom/complexGeomObjects.cpp