Paths: definition (structure)
Definition
A path is defined by:
- a name (and a comment)
- a type
- specific characteristics belonging to a type
- a coordinate system for definition
- attributes of color and visibility
Name
The name to identify the path is set by the user during the creation of this one.
A comment (optional) can be added to the name.
Types of path
The different types of paths and the characteristics useful for their description are presented in the table below.
| Type | Characteristics | |
|---|---|---|
| path defined by two points | starting point (coordinates) | ending point (coordinates) | 
| Type | Characteristics | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| arc path defined by three points | starting point (coordinates) | middle point (coordinates) | ending point (coordinates) | |||||||||
| arc defined by center, radius and angles | coordinate system for definition | center point (coordinates) | radius | starting angle ending angle | ||||||||
| Type | Characteristics | ||
|---|---|---|---|
| parametrized path | coordinate system for definition | functions (coordinates dependent on parameter) | parameter variation (minimum and maximum) | 
It is not possible to modify a path.