search

tudelft3d / City3D

Large-scale LoD2 Building Reconstruction from Airborne LiDAR Point Clouds
https://github.com/tudelft3d/City3D
GNU General Public License v3.0
223 stars 36 forks source link

faillure with a dataset #8

Closed alavenant closed 1 year ago

alavenant commented 1 year ago

I unsuccessfully tested the tool with this dataset. The program (CLI_Example_2) takes a lot of time and finally crash. Same with City3D : it's take time and a lot of memory, i must crash it manually.

Can you try and explain me where is the problem ?

Thanks, Antoine

building_test.laz.zip

yidahuang commented 1 year ago

Hi, thanks for your feedback. I checked your input data, and I found out that it is actually a complete point cloud of the urban scene.

CleanShot 2022-10-28 at 09 38 12@2x

As we have explained in the readme( Run City3D--> Example_2), "The individual buildings have already been segmented and each building is stored as a separate point cloud file. Our method generates a footprint for each building and then reconstructs it. " In this case, the input should be the point clouds of individual buildings, not the scan of the whole scene. Therefore, I would suggest you firstly extract the individual building point clouds from the original input data.