Autoscaling a Layer with Particles on Messes with Particle Settings

[jamesdoyle21]

https://user-images.githubusercontent.com/82955395/174670481-f3afc36b-506d-4569-83a9-f18916565229.mp4

https://dev.oceansmap.com/ott-coops/?permalink=N4IgtghgDgQjD2APEAuUB9Azgd1aANgHYDmqAtAOwAsAdFQIz0DMAbEwAzWtMCcArABoQ+CABdU9FjQBMLKnz4V2ADj4t2bAL5D0hAKZ5hJciz402PHi34U+na0JHiU09nQ4trnJhUb0+ypra4NAAyqIAnvgGaCAAlgAmqCFQAEZIoWJ6+PhxogZChBBgMSAAkpDEegBOESBCogAWAK5gqUVx+MmNoqJQmCgA9IPQcTSQaUg0AMbwYIOYkdGYgwBu9IMT6YgLWTl5emSrPIOinXor0mqD7Dc39SCLUaVbSEMLSxeb0Nu7+fv5I48EDBbBgTChPS9OIkTCGQjwTDoaZxeAAMyR2T0qzEqMI6DAOVwsUSyQAXlCxHMiQ8ntFktUIIsag9Zvh4NUAAoQaK9UqM5nVQYJPRoiDNfDiRwQCI1ADyUAgKMiEnY7CEi2qiRi6pAjJIMVAYBhqF1kGQLmCxsIpqE5tQTCEIrFEtEAFkTShdc7xZK3RALdInaLfaIAKpzZJgB7NSMocAPUSMtFouLTD02lBkaQ0diyBrJ1PpgMSJjmKhCPRFVLRABKEANqCTzT0ler0QAKoW0wAZOLEHpN6ottsQGt6ADC8EIongzWqcJQzdbeobVQ7aYA1ouANrq+gCINMAC6QjZHPrYCgyRrLYeVbH0Sn7Oql+vS+HK9EEE6-uIhDyZoRVQMV8EwFdKgA0QgL0Hsx2yECeXA0dxw7H98D-KCYMQsCVwfcdwi1BIYVIFBQOQkB8OiTDAJFODUgQsikL0YIESRaZ0gxdAsRxM5pwJGkSSSeMKW-WdCXwXANU+BkmXyapWXgF9uV5fJZMFYUQ1dB4RFlaoFSVPI6hQeg1WkoidSEfUqkMa1bRCQMrU9M0SxQR0QB9V0M3szy-VcoMPK0yUI2jeNoyEWNQoTAsIBTNNvK9XNlFMQQQCTWKi39C16BoJhlArSj2z0etGw-EdCsfPQuwy3t+0HMq8KKqcZznBch3K6yqq3Xd90PAQTzPJSL2Kd8QFvAoKvHZ9hqvdqv3QmjoOApjcLtCB-1o2D4K6FaKKoqqFvWrDlvIxrKsIxISJwvaisWmD6MY07WOKdAoGqdAmASdBsBhYTQDpUpFWqM5pmWB5Otsz0yDcUw1uy2hbCczNofMOxlDhiQEdSoGQafIa2vjbBGgOEFgmmedqird1oA3EpmVG1xpGkaGWGzdgO3oHgvXYbnczVAAtB4Jlpi58igEqbJQHcQEZ5mNDIehlA7dgqG53m1XYQWhFllns2kZXVbVdWBZAU8QHJ6pKZnABRaJeLxVUIqg0IImZKKSiTNNaSxaZ8gSUJpgfLV4DgvTdzNzAOT90OajKAARXcQCKMBXvez7vt+xS5NyfQ4TNhIxAgCdC-ZYgADFOnkvAgiAA

[ndellicarpini]

Can you give any more details on this issue? The video you sent is too laggy to tell whats going on

[jamesdoyle21]

Of course. Selecting the autoscale option in the layer settings changes the particles to go from lines back to the old way we had it, the dots. Steps to reproduce:

1. Turn on a wind or current layer (I used NOO Puerto Rico Wind)
2. Change the style to particles
3. Autoscale the color range
4. Hit apply
5. The streamlines are sped up and if you zoom in you can see they are back to dots, not lines
6. Restoring Defaults resets the streamflows to lines

[ndellicarpini]

The streamflows were never made into lines, they were just updated so the same number of particles are always on screen no matter the zoom level.

Maybe it's easier to tell that they're dots because the autoscale has them moving so fast?

[mpiannucci]

Have to make sure autoscale doesn't mess with the colorscale range sent to particles wms image request. Have a feeling that could be messing it up, because autoscale will fail for particles

[mpiannucci]

FWIW, it doesnt look that bad on my computer, and if you adjust the speed of the particles it looks even better.

This might be able to be fixed by further normalizing particle speed, but for now Pyxms is working correctly, the only issue here is trying to make the ranges not get borked

[mpiannucci]

Right so the speed is scaled in the same way that the colors are, so when your range is changed drastically, the speed becomes very fast and the particles look bad. Not sure how we could improve this and the user can always make it pretty again themselves and permalink it jus fine. Let me know what you think

[mpiannucci]

Keeping open for a little further investigation

[ndellicarpini]

It should be fast when autoscaled right? The auto-scale should bring the range values way closer to the data's min/max values than the default, so there should be much more dramatic changes in the speed w/i the layer.

[mpiannucci]

It should be fast when autoscaled right? The auto-scale should bring the range values way closer to the data's min/max values than the default, so there should be much more dramatic changes in the speed w/i the layer.

Yup exactly whats happening

[jamesdoyle21]

The only reason I wanted to autoscale was to better see the colorscale of the particles. Would it make sense to not change the speed of the particles and only change the color scale? This would make sense too because we label that slider "Color Range"

[jamesdoyle21]

Because you can also change the speed of the particles in the slower/ faster slider

[mpiannucci]

The speed of the particles should be tied to the actual value of the speed. So I think something is not perfect with the scaling here.

[mpiannucci]

Found the bug, much better...