Autodesk 235B1-05A761-1301 User Guide - Page 691

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