Autodesk® Revit® Architecture 2012: No Experience Required

Splitting the Surface

When you need to make a drastic change to the surface's elevation without influencing the rest of the site, you must split the surface. Just to warn you up front, be deliberate about when and where you do this, because you're physically cutting a hole in the surface and adding a secondary toposurface to the void. Although you can merge these surfaces back together, in some situations it can be difficult to merge cleanly.

The objective of the next procedure is to split the toposurface and create smaller toposurfaces. Follow along:

1. In the Project Browser, go back to the Site plan.
2. On the Massing & Site tab, click the Split Surface button, as shown in Figure 18.7.

   FIGURE 18.7 The Split Surface button

3. Select the toposurface. ...