Model Hierarchies

Identifying the graphical structure of branch entities, for example, having all the pipes and connectors in a pipeline highlighted when selecting a pipeline in AIM, can be done by creating "is a part of" associations between the relevant child engineering objects (for example, pipes) and the engineering object higher up in the hierarchy that 'owns' them (for example, pipeline).

In AutoCAD 2D models, the only hierarchy is objects within a block and between blocks which can be nested. The Gateway automatically creates the relevant "is a part of" associations between these objects.

When viewed in AIM, the model hierarchy is reflected in the object explorer tree structure.

This hierarchy is derived from the input file but is lost when graphical objects are grouped, see Patterns 2D.

Remove Non-Essential Layers From Drawing

Note: The MicroStation 'level' values are extracted as 'layer' attributes. The following transformation using 'layer' applies to both AutoCAD 2D, MicroStation 2D and Smart P&ID / SmartSketch drawings.

To remove non-essential layers from drawing, use the <Remove> tag but target object has to be found by Association relationship. The following example shows how to use <Remove> tag to remove layer by its attribute value.

<Object>
<Conditions>
<Attribute name="layer" pattern="Non_Plot" />
</Conditions>
<Remove />
<Associations>
<Association relationship="GraphicalObjectAssociation">
<Remove includeTarget="true" />
</Association>
</Associations>
</Object>