Point: about

Points

Points can be created:

• manually (entering coordinates)
• by propagation from existing points, with the aid of transformations
• within the propagation or extrusion from other entities

Point coordinates

A point could be defined by its coordinates in a coordinate system for definition (see Coordinate system: about).

Point defined by propagation

A point could be defined by propagation from another point with the aid of a transformation.

Nature of points

Flux allows the user to modify the consideration of points in the building algorithms for face, volume and mesh.

A specific feature, called nature, is attached to the points. There are some examples of nature attribute using in section Geometry building module of chapter Geometry: principles.

Parameter setting

The point coordinates can be defined using algebraic expression. The algebraic expression can contain:

• constants
• geometric parameters (created beforehand)
• basic mathematical functions using operators: +, -, *, /, ( )
• usual mathematical functions admitted by FORTRAN.

The mathematical functions are described in section Functions.