Points

Points are created as a coordinate or the intersection between two elements, that is surfaces, planes or curves. In the case of intersection; the resulting point will be located in the first of the two intersection elements, that is a surface, a grid plane or a curve. The second intersection element can also be a plane defined as an absolute coordinate.

The common reference points are stored in a point world (with element name PNTWLD). Local points can be created and stored below other elements in applications working with points. This is then further described in these application manuals, but generally the same functions and data structure is used also for these local points.

Each point is stored with a definition and an instance (containing the actual geometry of the point). The point data structure is presented below.