Is there a way to draw a line scaling with different factor on different zooms

CesiumJS
1

There is a scenario, that I need to draw one road on the map with Cesium, but I want to display the road with different width on different zooms. I did some research and didn’t find any API that provides that mechanism. Anyone can help me with this?

2

How are you drawing this line? Polylines in CesiumJS are designed to be a constant width on screen regardless of camera zoom. It sounds like you might want to create a polygon/rectangle spanning your road so it stays “fixed in the world” as you zoom in or out. If you need to control the width another way, you’ll need to create a dynamic polyline with a callback property:

https://sandcastle.cesium.com/index.html?src=Callback%20Property.html

This example moves the polyline over time, but any property, such as width, can be dynamic in the same way.

3

Hi Omar,

Thanks for the reply, the sample gives me some ideas, thanks again.