2D grids: definition (structure)
Definition
A 2D grid is defined by:
- a name (and a comment)
- a type
- a coordinate system for definition
- an origin (in a coordinate system for definition)
- specific characteristics belonging to a type
- a coordinate system for definition
- attributes of color and visibility
Name
The name to identify the 2D grid is set by the user during the creation of this one.
A comment (optional) can be added to the name.
Type of 2D grids
The different types of 2D grids and the characteristics useful for their description are presented in the table below.
| Type | Characteristics | |
|---|---|---|
| All types | 2D grid origin coordinates | coordinate system for definition |
| Type | Characteristics | ||
|---|---|---|---|
|
Rectangular in the XY plane |
dimension along positive X dimension along negative X number of elements along X |
dimension along positive Y dimension along negative Y number of elements along Y |
|
|
Rectangular in the XZ plane |
dimension along positive X dimension along negative X number of elements along X |
dimension along positive Z dimension along negative Z number of elements along Z |
|
|
Rectangular in the YZ plane |
dimension along positive Y dimension along negative Y number of elements along Y |
dimension along positive Z dimension along negative Z number of elements along Z |
|
| Annular |
internal radius external radius number of elements along the radius |
minimal θ maximal θ number of elements along θ |
|
| Cylindrical | radius |
minimal θ maximal θ number of elements along the radius |
dimension along positive Z dimension along negative Z number of elements along Z |
| Spherical | radius |
minimal θ maximal θ number of elements along the radius |
minimal φ maximal φ number of elements along φ |
Length and angle units
Length and angle units are those associated with the coordinate system.