Point Clouds (LAS / LAZ / E57)

Point clouds are dense scans of a real world site, usually captured by lidar or photogrammetry. SiEGA Web supports the three most common point cloud formats: LAS, LAZ, and E57. When you upload one of these files, the system converts it into a streaming 3D Tiles asset so it loads quickly in the browser and stays smooth as you move the camera around. This page walks through bringing a point cloud into the scene and interacting with it. For changing how individual classes are colored or hidden, see the Point Cloud Classification page.

How point clouds get into the scene

Right now point clouds come in through your Cesium Ion account. You upload your .las, .laz, or .e57 file to Cesium Ion, Cesium tiles it for you, and SiEGA Web pulls the tiled asset in using the Cesium Ion access token saved on your AERO AI account

If you have not connected a Cesium Ion token to your AERO AI account yet, follow the Account Setup & Installation page to create a Cesium Ion account, copy your default access token, and paste it into your AERO AI dashboard under Team → Organization Settings. Once that token is saved, every Cesium Ion asset on your account becomes available in the Asset Sidebar the next time you launch SiEGA Web.

Loading a Point Cloud Into the Scene

Once your token is connected, your Cesium Ion assets will show up in the Asset Sidebar on the left side of the viewer. Point clouds live under the 3D Tiles section with a Cesium source label below the asset name.

1. Open the Asset Sidebar and expand the 3D Tiles section to see your available assets.

2. Click the cloud download icon on the left side of the asset row to stream the point cloud into the scene.

3. Click the eye icon on the right side of the row to fly the camera directly to the loaded point cloud.