Lone pair orientation inconsistent

[Nancy-Salpepi]

Test device MacBook Air (m1 chip) and Chromebook

Operating System iOS 11.6

Browser chrome

Problem description https://github.com/phetsims/qa/issues/715

In the Real Molecules Screen, when switching back and forth between 'real' and 'model' several times, the orientation of the lone pairs changes--meaning, where they are located the first time 'real' is selected may not be the same as the second time 'real' is selected.

Steps to reproduce

1. Select the Real Models Screen
2. Check 'Show Outer Loan Pairs' in Options under the PhET menu
3. Select a molecule whose terminal atoms have lone pairs, ex. BF3 or XeF4
4. Switch back and forth several times between 'real' and 'model' modes

Visuals

Troubleshooting information: !!!!! DO NOT EDIT !!!!! Name: ‪Molecule Shapes‬ URL: https://phet-dev.colorado.edu/html/molecule-shapes/1.4.0-dev.1/phet/molecule-shapes_all_phet.html Version: 1.4.0-dev.1 2021-10-07 21:09:50 UTC Features missing: applicationcache, applicationcache, touch Flags: pixelRatioScaling User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36 Language: en-US Window: 1431x690 Pixel Ratio: 2/1 WebGL: WebGL 1.0 (OpenGL ES 2.0 Chromium) GLSL: WebGL GLSL ES 1.0 (OpenGL ES GLSL ES 1.0 Chromium) Vendor: WebKit (WebKit WebGL) Vertex: attribs: 16 varying: 31 uniform: 1024 Texture: size: 16384 imageUnits: 16 (vertex: 16, combined: 80) Max viewport: 16384x16384 OES_texture_float: true Dependencies JSON: {}

[jonathanolson]

@arouinfar, any idea how much time this is worth tracking down? It probably isn't terribly easy to solve.

[arouinfar]

@jonathanolson this looks pretty minor to me. If there isn't a clear and easy solution, I'm fine with closing as wontfix.