Depth gradient point cloud

CesiumJS
1

Hi!

I have currently discovered Cesium JS and love the potential with this technology! I’m working with a dataset mapping an area of the seabed. I have two categories of questions in regards to this.

  1. I want to have some sort of street view so that I can move in the point cloud, looking at the terrain straight ahead. Is this possible, still visualizing the Earth? When zoomed in really close, I lose the visualization of some of my points as I get “into the earth.” How do I avoid this?

  2. I want to display the point cloud with a gradient of colors depending on the depth, but I haven’t figured out how to do this. I think a problem might be that I’m below sea. Do you have any suggestions?

Kind regards,
Marie

2

Hi @Marie_Wahl,

Welcome to the CesiumJS forums!

  1. I think what you want to do here should be possible. For example, take a look at this sandcastle. I’m able to get in pretty close at street view:

    image
    image1920×1351 123 KB

    It might help me understand your issue better if you can provide your own sandcastle example. If you’re using terrain or google photorealistic 3D tiles, there are some known issues with billboards / points / etc. getting swallowed. Fixes should be released soon for those.

  2. I would look at some of our demo sandcastles on point clouds and, specifically, those using Cesium3DTileStyle. Here’s one such sandcastle that might help!

Hope that gets you started,
Matt