Using Lidar Files and the Z-Dimensions are wrong?

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Rayaarito
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Joined: Mon Jan 20, 2020 9:11 pm

Using Lidar Files and the Z-Dimensions are wrong?

Post by Rayaarito »

I'm using LIDAR files from: https://coast.noaa.gov/htdata/lidar2_z/ ... data/5087/
These files specifically: https://docs.google.com/spreadsheets/d/ ... sp=sharing
Images to my issue: https://imgur.com/a/W8hbiqg

The issue I'm having is that once I import it into CloudCompare, I notice that there are "Layers" within this file? The images in the attached IMGUR link shows my challenge.

First, when I open it, i have to zoom in A LOT just to see the map. When I rotate my view to see the "height-difference' it becomes extremely distorted (like in the last picture). When I viewed the file from the side (second pic), that's when I noticed the layer challenge. Any ideas on this?
daniel
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Re: Using Lidar Files and the Z-Dimensions are wrong?

Post by daniel »

Looks like a typical coordinate system issue. The points X and Y coordinates are angular values while the Z coordinate is metric. CC doesn't handle these 'projections'. You'll have to convert the data to cartesian coordinates first.
Daniel, CloudCompare admin
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