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2 In the Create Surface dialog box (page 1895), click and select File.
3 In the Select a Point File dialog box, select the file format and navigate
to your point file.
4 Click Open.
5 In the Formatting section, specify the formatting and vertical (Z) unit of
your data file.
6 In the Output File Name field, click
and enter a file name and save
location. If you do not specify a save location, the raster file will be saved
to My Documents.
7 In the Layer Name field, enter a name for the new Display Manager raster
layer.
8 In the Coordinate System Assignment section, specify the coordinate
system of the source data. You can either enter the code in the text field,
or click to choose from a list. You must specify the coordinate system for
each data source you use.
9 Click OK. AutoCAD Map 3D generates a raster surface in GeoTIFF format
and adds it to a new feature layer in your map. You can also see the new
raster connection in Data Connect.
To create a surface from a data connection
You can create a surface using point data stored in a database or geospatial
file format (such as Autodesk SDF).
1 If you are using an ODBC data source, specify the coordinate columns
and add the data to your map as a vector layer before creating a surface.
2 In the Tool-based Ribbon Workspace, click Create tab > Surface panel >
3D Surface or enter MAPCREATESURFACE at the command line.
3 In the
Create Surface dialog box (page 1895), click and select
Connection.
4 In the
Source Data dialog box (page 1897), select the data source.
5 Click OK.
1010 | Chapter 6 Creating and Editing Data