I was supplied with LiDar data in XYZ format. I import the blocks via point clouds, each seperate block in a seperate point cloud. The point cloud details show that the cloud contains about 2.5 million points. When I create a surface from the point cloud it will only use 48 000 points from the 2.5 million. I combined all my point clouds (27) to create a large surface, and it only contains 77 516 points. By my calculations it should contain 2.5 million x 27 = 67.5 million. Is there any way to have my surface contain all the points from the point cloud?
Thanks,
Solved! Go to Solution.
Solved by mathewkol. Go to Solution.
Try changing the Point Cloud density to a higher number. I think by default it is only set to 15 out of 100.
I have had a very difficult time when importing the lidar data as point files. Extremely slow and most times Civl 3D will sotp responding. I open the task manager and it shows its only using 10% of the CPU and 10% of the Ram.
Matt's right. You are better off "attaching" the point file.
In any event, using every single point of a 60M +/- point scan wouldn't produce much of a difference, except for a horrifically unmanageable file size. For the most part, the intermediate points will lie on a the surfaces formed from the other points. They may be a little higher or lower, but shouldn't be signficantly so.
Kind of like modeling every nuance of a thread and rounded bolt head on a screw for a 1:50 drawing.
When I increased the point cloud density from the default 15% to 100%, it still only included the same 48 000 points when I would create a surface per point cloud.
Probably more like 15%, where you are showing combined activity in a hex-core processor. If you switched to individual core monitoring, you would see one of the cores pegged at or near 100%.
Matt, it took me a little bit to figure out what you meant, but I understand. Create a surface and just attach the point files instead of importing the points and creating point groups and attaching them. It sounds like a much better method than what I had orginally attempted. I will give it a shot and let you know how it works. Thanks for the help!
So I was able to attach the point files, it created the surface using the correct number of points per block. I maxed out my surface to about 30 million points and then it would crash everytime I tried to add more. Broke it up into smaller surfaces and it worked fine. Thanks for the solution!!
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