DXF path entity base class. More...

#include <mydxfentities.hpp>

Inheritance diagram for MyDXFPathEntity:

Public Member Functions
virtual	~MyDXFPathEntity ()
	Virtual destructor. More...

virtual Vec3D	start (void) const =0
	Get start point of path entity. More...

virtual Vec3D	end (void) const =0
	Get end point of path entity. More...

virtual void	set_start (const Vec3D &s)=0
	Set start point of path entity. More...

virtual void	set_end (const Vec3D &e)=0
	Set end point of path entity. More...

virtual int	ray_cross (double x, double y) const =0
	Check for ray crossing. More...

Public Member Functions inherited from MyDXFEntity
virtual	~MyDXFEntity ()
	Virtual destructor. More...

virtual MyDXFEntity *	copy (void) const =0
	Get a new copy of entity. More...

virtual void	explode (class MyDXFEntities ent, MyDXFFile dxf, const Transformation *t) const =0
	Explode into entities. More...

virtual void	write (class MyDXFFile *dxf, std::ofstream &ostr)=0
	Write dxf file to stream. More...

virtual void	scale (class MyDXFFile *dxf, double s)=0
	Scale entity by factor s. More...

virtual void	translate (class MyDXFFile *dxf, const Vec3D &dx)=0
	Translate entity by dx. More...

virtual void	rotate_z (class MyDXFFile *dxf, double a)=0
	Rotate entity around origin. More...

void	set_layer (const std::string &layer)
	Set layer. More...

std::string	get_layer (void) const
	Get layer. More...

virtual EntityType	get_type (void) const =0
	Get entity type. More...

void	set_handle (const std::string &handle)
	Set entity handle. More...

std::string	get_handle (void) const
	Get entity handle. More...

virtual void	plot (const class MyDXFFile dxf, cairo_t cairo, const Transformation *t, const double range[4]) const =0
	Plot entity with cairo. More...

virtual void	get_bbox (Vec3D &min, Vec3D &max, const class MyDXFFile dxf, const Transformation t) const =0
	Return bounding box of entity. More...

virtual void	debug_print (std::ostream &os) const =0
	Print debugging information to stream os. More...

Protected Member Functions
	MyDXFPathEntity (const MyDXFEntity &ent)

Protected Member Functions inherited from MyDXFEntity
void	write_common (class MyDXFFile *dxf, std::ofstream &ostr)

void	process_group (class MyDXFFile *dxf)

void	constructor_debug_print (void) const

void	debug_print_base (std::ostream &os) const

Additional Inherited Members
Static Protected Member Functions inherited from MyDXFEntity
static void	bbox_ppoint (Vec3D &min, Vec3D &max, const Vec3D &p)
	Propose a point to bounding box. More...

Protected Attributes inherited from MyDXFEntity
std::string	_handle

std::string	_layer

Detailed Description

DXF path entity base class.

A base class for two dimensional DXF entities, which can be part of a path. All path entities have a start point and an end point, that can be read and set.

Constructor & Destructor Documentation

◆ ~MyDXFPathEntity()

virtual MyDXFPathEntity::~MyDXFPathEntity ( )

inlinevirtual

Virtual destructor.

Member Function Documentation

◆ end()

virtual Vec3D MyDXFPathEntity::end ( void ) const

pure virtual

Get end point of path entity.

Implemented in MyDXFSpline, MyDXFLWPolyline, MyDXFLine, MyDXFCircle, and MyDXFArc.

◆ ray_cross()

virtual int MyDXFPathEntity::ray_cross	(	double	x,
		double	y
	)		const

pure virtual

Check for ray crossing.

Check if ray going from point (x,y) downwards (negative y direction) crosses the entity. Return 1 if crosses odd number of times and 0 if even number of times. Return 2 in case of exact crossing at boundaries. This function is used as a subroutine to inside_loop().

Implemented in MyDXFSpline, MyDXFLWPolyline, MyDXFLine, MyDXFCircle, and MyDXFArc.