Browse the LAS dataset as the Input Surface.Navigate to 3D Analyst Tools > Triangulated Surface > Surface Contour. Create contour lines directly from the LAS dataset The first option requires the 3D Analyst extension, and the second option requires either the 3D Analyst extension or the Spatial Analyst extension.
LAS data might not be displayed due to different projections between the map and the LAS data, or the spatial reference for the LAS files is not defined properly.Ĭontour lines can be created from the lidar data using one of the following options Defining the spatial reference at the LAS dataset level alone is not enough. ArcGIS reads and uses this spatial reference information. Spatial reference must be defined for each LAS file.
#Contour lines how to
For instructions on how to create an LAS dataset, refer to the following web help document, Managing LAS datasets: Creating a LAS dataset. The instructions provided describe how to create contour lines from lidar data.Ĭreate an LAS dataset before creating contour lines from the lidar data. Each contour line feature is created by connecting contiguous points with equal height values from the lidar data. Contour lines can be created from the lidar data (.las) to give information on elevation of the earth’s surface. Lidar (light detection and ranging) is an optical remote-sensing technique that uses laser light to sample the earth’s surface and produce highly accurate x,y,z measurements. How To: Create contour lines from Lidar data Summary
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