Autodesk 235B1-05A761-1301 - AutoCAD MEP 2010, User Manual

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NOTE If you specify that the MvPart can anchor to another object as well as break into another object, the software
prompts you to select which behavior to use when adding the part to a drawing. For an example of both behaviors,
see
Defining the Part Behavior of a Block-Based MvPart on page 757.
Schematic Symbol of a Parametric Part
While parametric parts do not require schematic symbols, generally you create them for use in schematic
diagrams. If a part does not have a schematic symbol, the part is not visible in schematic representations of
a system. If a part does have a schematic symbol, you have the option of also using it in 1-line and 2-line
representations of a system in Top (plan) view. This can be helpful for differentiating systems in a design,
for example, supply and return HVAC systems.
Model and schematic representations of parts
Symbol and Annotation Plane
You create schematic symbols for parametric parts on the Symbol and Annotation plane, a horizontal plane
to which you attach the symbol geometry, associated constraints and dimensions, and annotation.
Symbol and Annotation plane in the drawing area
Symbol and Annotation
plane in the Content
Builder part browser
In many ways, the Symbol and Annotation plane behaves like the work planes to which you attach the
features of the part model. You attach the features of the symbol to the Symbol and Annotation plane, and
you can make the plane visible or invisible, isolate its contents, or hide its contents. However, unlike the
work planes that you create manually, the software automatically creates the Symbol and Annotation plane
when you begin a new part in Content Builder.
Building Parametric Fittings Using Content Builder | 673