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MyDXFPathEntity Class Reference
DXF path entity base class. More...
#include <mydxfentities.hpp>
Public Member Functions | |
| virtual | ~MyDXFPathEntity () |
| Virtual destructor. | |
| virtual Vec3D | start (void) const =0 |
| Get start point of path entity. | |
| virtual Vec3D | end (void) const =0 |
| Get end point of path entity. | |
| virtual void | set_start (const Vec3D &s)=0 |
| Set start point of path entity. | |
| virtual void | set_end (const Vec3D &e)=0 |
| Set end point of path entity. | |
| virtual int | ray_cross (double x, double y) const =0 |
| Check for ray crossing. | |
Protected Member Functions | |
| MyDXFPathEntity () | |
| MyDXFPathEntity (const MyDXFEntity &ent) | |
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::MyDXFPathEntity | ( | ) | [inline, protected] |
| MyDXFPathEntity::MyDXFPathEntity | ( | const MyDXFEntity & | ent | ) | [inline, protected] |
| virtual MyDXFPathEntity::~MyDXFPathEntity | ( | ) | [inline, virtual] |
Virtual destructor.
Member Function Documentation
| virtual Vec3D MyDXFPathEntity::end | ( | void | ) | const [pure virtual] |
Get end point of path entity.
| 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().
| virtual void MyDXFPathEntity::set_end | ( | const Vec3D & | e | ) | [pure virtual] |
Set end point of path entity.
| virtual void MyDXFPathEntity::set_start | ( | const Vec3D & | s | ) | [pure virtual] |
Set start point of path entity.
| virtual Vec3D MyDXFPathEntity::start | ( | void | ) | const [pure virtual] |
Get start point of path entity.
The documentation for this class was generated from the following file: