Creating A Toposurface By Picking Points; Creating A Toposurface From Imported 3D Data - Autodesk 256B1-05A761-1301 - AutoCAD Revit Structure Suite 2010 User Manual

Sample topographical surface defined by picking points in a site plan view

Creating a Toposurface by Picking Points

1 Open a 3D or site plan view.
2 Click Massing & Site tab
3 On the Options Bar, set a value for Elevation.
4 Next to the Elevation text box, select one of the following:
5 Click in the drawing area to place points. If needed, change the elevation on the Options Bar
6 To complete the surface, click Finish Surface.
If you need to modify the toposurface, select it and click Modify Topography tab
Surface. Edit the sketch, and click Finish Surface.
Related topics
Splitting a Toposurface
Toposurface Subregions
Toposurface and Subregion Properties

Creating a Toposurface from Imported 3D Data

You can automatically generate a toposurface based on 3D contour data imported in DWG, DXF, or DGN
formats. Revit Architecture analyzes the 3D contour data and places a series of elevation points along the
contour lines.
You must import the 3D contour data before creating the surface. See
on page 1387.
956 | Chapter 15 Site Design
Revit Architecture enters sketch mode.
This value determines the elevation of the point being placed. (The points and their elevations
are used to create the surface.)
Absolute Elevation. Points display at the specified elevation. You can place points anywhere
in the active drawing area.
Relative to Surface. Allows you to edit an existing toposurface by placing points on it at the
elevation you specify. To use this option effectively, you may want to work in a shaded 3D
view.
as you place additional points.
on page 959
on page 958
Model Site panel Toposurface.
on page 961
Surface panel
Importing or Linking CAD Formats
Edit