To Create a Silhouette Curve
1. On the Mold or Cast tab, click 
Silhouette Curve. The Silhouette Curve tab opens.
Silhouette Curve. The Silhouette Curve tab opens.2. Click 
and select one or more surfaces of a reference model body. If a single body reference model exists in an assembly, the model is automatically selected. Alternatively, you can select the required surfaces or reference model body surfaces on the Reference tab.
and select one or more surfaces of a reference model body. If a single body reference model exists in an assembly, the model is automatically selected. Alternatively, you can select the required surfaces or reference model body surfaces on the Reference tab. | On the Reference tab, click Details to view the individual, excluded, and all solid surfaces existing in the model. You can select the required surfaces as references. |
3. Click the 
Light Direction Collector and select a surface, curve, edge, axis, plane, or coordinate system to specify the light direction.
Light Direction Collector and select a surface, curve, edge, axis, plane, or coordinate system to specify the light direction.4. Specify any of the following options, if required:
◦ Slides: Specify volumes and part bodies to handle undercut zones in the reference part.
◦ Gap Closure: Close one or more gaps in the preliminary silhouette curve.
◦ Loop Selection: Include or exclude loops and chains to resolve ambiguities in the undercut and non-drafted zones.
5. On the Properties tab, type a name for the silhouette curve feature.
6. Click OK.