# Change Polylines to old version

**URL:** <https://community.cesium.com/t/change-polylines-to-old-version/611>\
**Category:** CesiumJS\
**Created:** [July 16, 2013, 12:53pm UTC](https://community.cesium.com/t/change-polylines-to-old-version/611 "2013-07-16T12:53:32Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Tamy](https://avatars.discourse-cdn.com/v4/letter/t/bbe5ce/32.png) [@Tamy](https://community.cesium.com/u/Tamy)\
**Post date:** [July 16, 2013, 12:53pm UTC](https://community.cesium.com/t/change-polylines-to-old-version/611/1 "2013-07-16T12:53:32Z")

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Hi!

I can’t render polylines on 2D view yet ( [https://groups.google.com/d/topic/cesium-dev/XFtvzARL03k/discussion](https://groups.google.com/d/topic/cesium-dev/XFtvzARL03k/discussion) ). I want to change the polylines to version b15, before create material for polylines.

What files and functions I need to change in addition to Polyline.js and PolylineCollection.js?

Thanks!

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**Author:** ![Matt\_Amato](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/matt_amato/32/1993_2.png) [@Matt\_Amato](https://community.cesium.com/u/Matt_Amato)\
**Post date:** [July 16, 2013, 2:38pm UTC](https://community.cesium.com/t/change-polylines-to-old-version/611/2 "2013-07-16T14:38:51Z")

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Tamy, there’s no way to go back without simply using b15. That being said, the polyline issue looks like it’s a mac-specific bug and we hope to have it fixed soon. Keep your eye #945: [https://github.com/AnalyticalGraphicsInc/cesium/issues/945](https://github.com/AnalyticalGraphicsInc/cesium/issues/945)

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**Author:** ![Tamy](https://avatars.discourse-cdn.com/v4/letter/t/bbe5ce/32.png) [@Tamy](https://community.cesium.com/u/Tamy)\
**Post date:** [July 16, 2013, 8:05pm UTC](https://community.cesium.com/t/change-polylines-to-old-version/611/3 "2013-07-16T20:05:33Z")

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I believe the problem is NVIDIA.

My tests on chrome and firefox:

With error:

Windows 7 32 bits with NVIDIA GeForce 7300 SE/7200 GS

Mac with Intel HD Graphics 4000 e NVIDIA GeForce GT 650M

Without error:

Windows 7 32 and 64 with Intel HD Graphics

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**Author:** ![patrick](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/patrick/32/2045_2.png) [@patrick](https://community.cesium.com/u/patrick)\
**Post date:** [July 16, 2013, 11:35pm UTC](https://community.cesium.com/t/change-polylines-to-old-version/611/4 "2013-07-16T23:35:19Z")

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This was just merged into master. [#950](https://github.com/AnalyticalGraphicsInc/cesium/pull/950).

Patrick

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**Author:** ![Tamy](https://avatars.discourse-cdn.com/v4/letter/t/bbe5ce/32.png) [@Tamy](https://community.cesium.com/u/Tamy)\
**Post date:** [July 17, 2013, 11:47am UTC](https://community.cesium.com/t/change-polylines-to-old-version/611/5 "2013-07-17T11:47:05Z")

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I’m still having the same problem. And now there’s an error on 3D too.

3D

[![](https://lh5.googleusercontent.com/-nWmBe7DANDA/UeaDej80PWI/AAAAAAAAAEc/6_dhvcLdonc/s320/polylinesError3d.png)](https://lh5.googleusercontent.com/-nWmBe7DANDA/UeaDej80PWI/AAAAAAAAAEc/6_dhvcLdonc/s1600/polylinesError3d.png)

Columbus

[![](https://lh3.googleusercontent.com/-2Oi5w7S1XzY/UeaDpIyIl9I/AAAAAAAAAEk/HZ5zzuCmHWA/s320/polylinesError25d.png)](https://lh3.googleusercontent.com/-2Oi5w7S1XzY/UeaDpIyIl9I/AAAAAAAAAEk/HZ5zzuCmHWA/s1600/polylinesError25d.png)

2D

[![](https://lh3.googleusercontent.com/-hQZtBowGImc/UeaDuOAkO5I/AAAAAAAAAEs/9CL0heBynEI/s320/polylinesError2d.png)](https://lh3.googleusercontent.com/-hQZtBowGImc/UeaDuOAkO5I/AAAAAAAAAEs/9CL0heBynEI/s1600/polylinesError2d.png)

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<div class="post-metadata">

**Author:** ![Matt\_Amato](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/matt_amato/32/1993_2.png) [@Matt\_Amato](https://community.cesium.com/u/Matt_Amato)\
**Post date:** [July 17, 2013, 1:40pm UTC](https://community.cesium.com/t/change-polylines-to-old-version/611/6 "2013-07-17T13:40:32Z")

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Tamy, I’m sorry to hear you are still having problems. Can you provide us the OS, video-card, and browser version for the machine you are still seeing the problem on. Also, be sure you have the latest video card driver.

Also, as a shot in the dark, try clearing your cache or if you are in Chrome, running in Incognito mode to see if that has any effect.