Autodesk 24000-000000-9860 - Revit Architecture - PC, User Manual

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3 On the Toposurface tab of the Design Bar, click Use Imported
➤
Import Instance.
4 Select the imported 3D contour data in the drawing area.
The Add Points from Selected Layers dialog displays.
5 Select the layers to apply elevation points to, and click OK.
Revit Architecture analyzes the imported 3D contour data and generates a toposurface based on
the elevation points placed along the contour lines.
6 On the Toposurface tab, click Finish Surface.
Creating a Toposurface from a Points File
You can automatically generate a toposurface based on a points file. A points file is typically generated by
a civil engineering software application. The file provides contour data using a regularized grid of elevation
points.
The points file must contain x, y, and z coordinate numbers as the first numeric values in the file. The file
must also be in a comma-delimited file format (a CSV or TXT file). Additional information in the file (such
as a point name) is ignored. Any additional numeric information for a point must occur after the x, y, and
z coordinate values. If the file contains 2 points with the same x and y coordinates, Revit Architecture uses
the point with the largest z value.
To create a toposurface from a points file:
1 Open a 3D or site plan view.
2 Click Site menu
➤
Toposurface, or on the Site tab of the Design Bar, click Toposurface.
3 On the Toposurface tab of the Design Bar, click Use Imported
➤
Points File.
4 In the Open dialog, do the following:
a Navigate to the location of the points file.
b For Files of type, select the type of points file: CSV or comma-delimited text.
c Select the points file, and click Open.
5 In the Format dialog, specify the units used to measure points in the points file (for example,
decimal feet or meters), and click OK.
Revit Architecture generates points and a toposurface from the coordinate information in the
file.
6 On the Design Bar, click Finish Surface.
Now you can edit points in the toposurface, add graded regions and building pads, and make other changes
to the toposurface.
Simplifying a Toposurface
Simplifying a surface can improve system performance, particularly on surfaces with a large number of
points.
1 Open the site plan view and select the toposurface.
2 On the Options Bar, click Edit.
3 On the Toposurface tab of the Design Bar, click Simplify Surface.
4 Enter a value for surface accuracy, and click OK.
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