Page 126 - Divyank Tyagi

92 | ChapTER 3 The Basics of The ToolBox

You can create a toposurface in three different ways: by placing points at specific elevations,
by using a linked CAD file with lines or points at varying elevations, or by using a points file
generated by a civil engineering application. We’ll examine these techniques in the following
exercises.

Turning On and Off Tabs

if you don’t see the Massing & site tab, just navigate to the application button and choose options.
from there, select the User interface tab. here you can turn on and off any of the tabs from the
ribbon.

Creating a Toposurface by placing points
Certification The simplest way to create a toposurface is by placing points in your Revit project at specific
Objective elevations. To create a clean outer edge for your toposurface, we suggest drawing a large
rectangle using detail lines in your site plan. When you are creating a toposurface by placing
points, there are no line-based geometry tools; however, points can be snapped to the detail
lines. The following exercise will show you how to create a toposurface by placing points:
1. Begin by opening the file c03-Site-Tools.rvt, which can be downloaded from this
book’s companion web page at www.sybex.com/go/masteringrevit2015.
2. Activate the floor plan named Site, and you will see a rectangle created from detail lines.
3. Go to the Massing & Site tab, and from the Model Site panel, click Toposurface.
Notice in the contextual tab in the ribbon that the default tool is Place Point.
4. Notice the Elevation value in the Options bar. Set the value of the points you are about to
place.

Also note that the elevation values are always related to the Revit Project Base Point. They
do not relate to the elevation of any shared coordinates.
5. With the Elevation value set to 0’-0” (0 mm), place a point at each of the left corners of the
rectangle.
6. Change the Elevation value to 20’-0” (6,000 mm), and then place a point at each of the
right corners of the rectangle. You will notice the contour lines of the surface begin to
appear after the third point of the surface is placed.

7. In the contextual tab of the ribbon, click Finish Surface (green check mark) to complete
the toposurface. Activate the Default 3D view, and you will see the sloping surface, as
shown in Figure 3.28. And keep in mind that this will be a thin surface, not a solid.
Notice that the 3D view in this project already has the section box property enabled. To
adjust the section box, activate the Reveal Hidden Elements tool in the view control bar.

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