There are times when we need to create a Civil 3D surface from .las point cloud data.?ÿ Our process is:
Import .las point cloud data into Leica Infinity
Create a surface
Export the surface as a LandXML file
Import the XML file into Civil 3D
In both Infinity and Civil 3D, we have our projections set the same, and units set to feet.?ÿ But when we import the XML file, it always comes in in meters.?ÿ We can use the scale command in Civil 3D to bring the surface (coordinates and elevations) down to feet using a base point of 0,0 and it comes in perfectly georeferenced.?ÿ But I don't understand why the XML file always comes in scaled up to meters?
@scrim Is it possible your source LAS is in meters?
Yes, my LAS data is in meters.?ÿ When I look at the data properties in Infinity, the elevations are in meters but labeled as feet. It lists an elevation as being 1,616.63 ft. but in reality it's 492.75 ft.?ÿ
It appears that when you assign imperial units in Leica Infinity, it only changes the tag at the end of the data, and does not actually convert the data from meters to feet.?ÿ?ÿ
It appears that when you assign imperial units in Leica Infinity, it only changes the tag at the end of the data, and does not actually convert the data from meters to feet.?ÿ?ÿ
That's strange for a geospatial processing program like Infinity, which should be able to reproject and modify units on the fly. While it has several features that I quite like, I found it incredibly opaque and user-unfriendly compared to other similar programs.
