Stable Multi Face RSO Reference

Description

When positioning a plane panel relative to a multi face RSO either the face number or an axis aligned ray (point) can be used. If for example, the statement wizard is used to build up the panel and an RSO face is picked via the graphical display the direct face number is added to the panel definition. In the panel statement it shows as a clause of the form "NO=<number>".

However if the RSO is modified it may be that the faces are renumbered and all the panels located by the RSO may get the wrong face number reference giving unpredictable results when regenerating.

The other option to select a face within an RSO is to give a coordinate pair in the global coordinate system, either (X,Y) or (X,Z) or (Y,Z). These coordinate pairs will geometrically describe a ray in space. If this ray intersects an RSO face, that face will be used to define the panel plane. Using a ray to select a face is more stable than a direct face number as it is insensitive to face renumbering.

From AVEVA Marine 12.1 the system will automatically update the panel definition provided the panel plane is defined via an RSO face number on a multi face RSO. When storing the panel a ray definition will be created and added to the panel definition. The direct face number will be kept as information, but the ray will take precedence.

At storing, if the face number is out of date it will be updated from the ray. Single face RSOs are not affected by this development. If the ray hits multiple RSO faces, the direct RSO number is kept as the primary definition.

Benefits

Panels with location defined by multi face RSOs will be insensitive to RSO face renumbering.

Compatibility Constraints

None.

For More Information

Only noted here.

Affected Programs

AVEVA Marine Structural Design,AVEVA Marine Detail Design