Help with using LiDAR data?
Posted 17 August 2012 - 04:55 PM
Posted 29 August 2012 - 04:43 AM
Posted 29 August 2012 - 03:23 PM
Feel free to stop by the GIS Chat over there with other questions!
Edit: You probably won't want to use the projection used in that example, however, so be careful with that!
Edited by chandlersterling, 29 August 2012 - 03:24 PM.
Posted 19 September 2012 - 04:14 PM
How did you make out with your LiDAR data? My workflow with a LiDAR raster file was to generate contours at intervals I specified which gave me elevations and slope. The raster would be viewed in 3D model over which I could drape the air photos taken by the aircraft at the same time. I'm using Manifold GIS, not sure the corresponding workflow in ArcGIS.
I was wondering if someone would be able to provide some assistance. I am reasonably familiar with ArcGIS but have never worked with a LiDAR dataset before. I have recently been sent one and would like to use the elevation data but I am struggling to know what to do with the files. They are raster files, and in ArcCatalog the preview shows images with only 1 or 2 colours. The attribute table only has three rows with values 0, 1, and 2, and a large integer in the un-titled column next to these. When I plot the data in ArcScene and get base heights from the raster I see topography, but when I go to identify a point I don't get anything that looks like an elevation reading. For this data to be useful I need to know what elevations I'm dealing with. Does anyone know how I would find this information?
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