MeshLib::CoordinateSystem Class Reference

Detailed Description

Coordinate systems.

Definition at line 38 of file CoordinateSystem.h.

#include <CoordinateSystem.h>

Public Member Functions
	CoordinateSystem (unsigned char coord)
	User provided coordinate system. More...
	CoordinateSystem (const Element &ele)
	Decides for a given element. More...
	CoordinateSystem (const GeoLib::AABB &bbox)
	Decides a coordinate system from a bounding box. More...
unsigned char	getType () const
	get this coordinate type More...
unsigned	getDimension () const
	get dimension size More...
bool	hasX () const
	has X dimension More...
bool	hasY () const
	has Y dimension More...
bool	hasZ () const
	has z dimension More...

Private Member Functions
unsigned char	getCoordinateSystem (const GeoLib::AABB &bbox) const

Private Attributes
unsigned char	_type

Constructor & Destructor Documentation

CoordinateSystem() [1/3]

MeshLib::CoordinateSystem::CoordinateSystem ( unsigned char  coord )

inlineexplicit

User provided coordinate system.

Definition at line 42 of file CoordinateSystem.h.

: _type(coord) {}

CoordinateSystem() [2/3]

MeshLib::CoordinateSystem::CoordinateSystem ( const Element &  ele )

explicit

Decides for a given element.

Definition at line 17 of file CoordinateSystem.cpp.

{
    GeoLib::AABB const aabb(ele.getNodes(),
                            ele.getNodes() + ele.getNumberOfNodes());
    CoordinateSystem const bboxCoordSys(getCoordinateSystem(aabb));
    if (bboxCoordSys.getDimension() >= ele.getDimension())
    {
        _type = bboxCoordSys.getType();
    }
    else
    {  // e.g. zero volume elements
        if (ele.getDimension() >= 1)
        {
            _type = CoordinateSystemType::X;
        }
        if (ele.getDimension() >= 2)
        {
            _type |= CoordinateSystemType::Y;
        }
        if (ele.getDimension() == 3)
        {
            _type |= CoordinateSystemType::Z;
        }
    }
}

References _type, getCoordinateSystem(), getDimension(), MeshLib::Element::getDimension(), MeshLib::Element::getNodes(), MeshLib::Element::getNumberOfNodes(), getType(), MeshLib::CoordinateSystemType::X, MeshLib::CoordinateSystemType::Y, and MeshLib::CoordinateSystemType::Z.

CoordinateSystem() [3/3]

MeshLib::CoordinateSystem::CoordinateSystem ( const GeoLib::AABB &  bbox )

inlineexplicit

Decides a coordinate system from a bounding box.

Definition at line 48 of file CoordinateSystem.h.

        : _type(getCoordinateSystem(bbox))
    {
    }

Member Function Documentation

getCoordinateSystem()

unsigned char MeshLib::CoordinateSystem::getCoordinateSystem ( const GeoLib::AABB &  bbox ) const

private

Definition at line 43 of file CoordinateSystem.cpp.

{
    unsigned char coords = 0;
 
    auto const& bbox_min = bbox.getMinPoint();
    auto const& bbox_max = bbox.getMaxPoint();
    Eigen::Vector3d const pt_diff = bbox_max - bbox_min;
 
    // The axis aligned bounding box is a from the right half-open interval.
    // Therefore, the difference between the particular coordinates of the
    // points is modified by the unit in the last place towards zero.
    if (std::nexttoward(std::abs(pt_diff[0]), 0.0) > .0)
    {
        coords |= CoordinateSystemType::X;
    }
    if (std::nexttoward(std::abs(pt_diff[1]), 0.0) > .0)
    {
        coords |= CoordinateSystemType::Y;
    }
    if (std::nexttoward(std::abs(pt_diff[2]), 0.0) > .0)
    {
        coords |= CoordinateSystemType::Z;
    }
 
    return coords;
}

References GeoLib::AABB::getMaxPoint(), GeoLib::AABB::getMinPoint(), MeshLib::CoordinateSystemType::X, MeshLib::CoordinateSystemType::Y, and MeshLib::CoordinateSystemType::Z.

Referenced by CoordinateSystem().

getDimension()

unsigned MeshLib::CoordinateSystem::getDimension ( ) const

inline

get dimension size

Definition at line 57 of file CoordinateSystem.h.

    {
        if (hasZ())
        {
            return 3;
        }
        if (hasY())
        {
            return 2;
        }
 
        return 1;
    }

References hasY(), and hasZ().

Referenced by CoordinateSystem().

getType()

unsigned char MeshLib::CoordinateSystem::getType ( ) const

inline

get this coordinate type

Definition at line 54 of file CoordinateSystem.h.

{ return _type; }

References _type.

Referenced by CoordinateSystem().

hasX()

bool MeshLib::CoordinateSystem::hasX ( ) const

inline

has X dimension

Definition at line 72 of file CoordinateSystem.h.

{ return (_type & CoordinateSystemType::type::X) != 0; }

References _type.

hasY()

bool MeshLib::CoordinateSystem::hasY ( ) const

inline

has Y dimension

Definition at line 75 of file CoordinateSystem.h.

{ return (_type & CoordinateSystemType::type::Y) != 0; }

References _type.

Referenced by getDimension().

hasZ()

bool MeshLib::CoordinateSystem::hasZ ( ) const

inline

has z dimension

Definition at line 78 of file CoordinateSystem.h.

{ return (_type & CoordinateSystemType::type::Z) != 0; }

References _type.

Referenced by getDimension().

Member Data Documentation

_type

unsigned char MeshLib::CoordinateSystem::_type

private

Definition at line 83 of file CoordinateSystem.h.

Referenced by CoordinateSystem(), getType(), hasX(), hasY(), and hasZ().

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

• MeshLib/CoordinateSystem.h
• MeshLib/CoordinateSystem.cpp