Polyline drapes over terrain. HOW TO (ORIGINAL)

Adding support for this is definitely on our radar and is something we would like to add soon. I don’t know all of the details, but from my understanding it is a very complicated graphics problem and we need to do some research to figure out a method to do this that works all of the time and also renders efficiently so it doesn’t slow down the application.

-Hannah

Hi Hannah

Has some research already been carried out ?

Tim

Hi Hannah,

I also want this function for a fixed-width polyline overlay terrain.
Is there any progress for polygon's GroundPrimitive?
Thank you.

Hi Tristan,

Unfortunately, we still don’t have an update on this issue, but it’s definitely on our radar. We’ll keep you posted!

Best,

  • Rachel

Hi ,

I have created lines draping using corridors, but it is rendering very slowly… the map gets stuck for around 45 secs and after that drapes the lines (corridors).

How to improve the performance…? I am extracting lat-lon from the linestring geojson and looping around 2000 times for each feature in the geojson…

Hello Rachel

Any development news on this feature yet ?

Thanks

Tim

Hi Tim,

Unfortunately, not yet. We’ve flagged this thread however and will update when we do get a chance!

Best,

  • Rachel

Hi Hannah/Rachel,

We have been converting our application to Cesium the past 7 months. All is great, on version 1.38. We have managed to clamp to ground all our geometries apart from the polyline. Which is a problem for most of us. Is there any update regarding draping polyline over terrain, or do you have a workaround for the interim.

Thanks
Jannie

Hi Hannah/Rachel,

We have been converting our application to Cesium the past 7 months. All is great, on version 1.38. We have managed to clamp to ground all our geometries apart from the polyline. Which is a problem for most of us. Is there any update regarding draping polyline over terrain, or do you have a workaround for the interim.

Thanks
Jannie

Hey Jannie,

I’m not Hannah or Rachel, but I can tell you unfortunately there’s no update for polylines on terrain yet. It’s near the top of our roadmap, but our development team has been rather busy. In the meantime, there’s a workaround here if you need. If you or your team has any resources to spare with development, that would help move things along as well!

Thanks!

Gabby

Hi Gabby,

Thank you so much for the reply. I will review the workaround. Will look into draping of polylines a bit further when things quiet down here, we are currently heading into releasing our software.

Thanks

Jannie