Polylines are gone in 2D


In SandCastle, when I change to 2D view, the polylines disappear!


Tamy, can you please provide some details regarding what operating system, browser, and graphics card you are using? Also, make sure your graphics driver is up to date. None of us can reproduce this problem on our end so it could be very specific to your current configuration.

On second thought, I was just able to reproduce this by panning the camera to certain places. So I’ll write up a bug and we’ll get it fixed ASAP.

See #854

Thank you, Matthew

My configuration:

Operation system: Windows 7 Professional 32 bits.
Graphic card: NVIDIA GeForce 7300 SE/7200 GS.

Browser: Chrome 27.0.1453.110 m

I tested on firefox 21.0 too

and on Mac 10.8.4 with Intel HD Graphics 4000 e NVIDIA GeForce GT 650M, on chrome.

In all tests I got the same problem: when I change to 2D view, the polylines disappear. If I change to 3D they appear again.

I’ve also noticed, when I pam in 3D, some parts of polyline blink.

This issue is happening to me in 2020! Was this ever resolved? I have the world countries loaded from geojson. Using built in stroke, or generating borders using cesium polylineGraphics from polygon hierarchy positions both have same effect. If the polygon fill material alpha is 1.0 the polylines dissappear. If polygon material alpha is < 1.0 the polylines are visible in 2D. Also messing with the polylines positions x/y/z numbers when morphing has interesting effects. The lines will be visible on parts of the map but bot others and randomly disappear mid county border.

Is this a known issue and is there any recommended way of avoiding it? Currently I am changing the alpha on my polygons and polylines when morphing between 3D and 2D but that is kind of a pain in the butt.