Product Documentation

Autodesk Civil 3D - Load Nearmap 3D Data to Create Contours

This article describes how to load Nearmap 3D data into Civil 3D to create contours. This allows you to:

For information about using Civil 3D, check Autodesk's Knowledge Network at: https://knowledge.autodesk.com/.

Loading Nearmap 3D Data to Create Contours

To load Nearmap 3D Data to generate contours:

Identify the Area of Interest (AOI) in MapBrowser.
Download DSM or DTM data using the Export tool.
In Civil 3D, select the coordinate system to use. To do this:
1. On the Settings tab, right-click on the drawing name.
2. Click Edit Drawing Settings.
3. From the Available coordinate systems list, select the required system for the drawing.
4. Click OK.
Create a surface in Civil 3D from the downloaded 3D data. To do this:
1. In the Prospector tab, right-click Surfaces and select Create Surface.
2. For Type, select ‘TIN surface’.
3. Name your Surface layer accordingly.
4. Click ‘…’ in the style tab to customize contour preferences.
5. Once done, click OK.
  You should now see the hierarchy of the surface that you created in the Surfaces node.
Click Definition to expand the node.
Right-click DEM Files and select Add to bring in the DTM/DEM data. The Add DEM File dialogue is displayed.
Select the DEM geoTIFF file that was downloaded earlier from MapBrowser.
Click OK.
Zoom in to the layer by right clicking the surface in the Prospector tab, and selecting Zoom to layer.
You will see the contours generated here as a surface object. Select the object and explode once to create a block reference, and twice for the contours to display as polylines.