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adokter / vol2bird

Generates vertical profiles of birds from weather radar volume scans
http://adokter.github.io/vol2bird
MIT License
33 stars 16 forks source link

iPoints are difficult to decode #159

Open bart1 opened 4 years ago

bart1 commented 4 years ago

I'm currently parsing the iPoints array. In case there are multiple scans with same elevation angle this is some what challenging. This is partially due to the ordering by height bin. A simple fix would be to add the scan id and range gate id as an additional column.

adokter commented 4 years ago

Agree this is a hassle @bart1. The points array has been introduced at some point by Jurriaan Spaaks from eScience center as a simplification, originally everything was read from the sweeps directly.

Instead of working on the points array which I wouldn't mind deprecating at some point, you could also consider working on https://github.com/adokter/vol2bird/issues/129. Instead of adding the gate classifications to the points array, as implemented now, the idea is to add them one step earlier as a new RAVE scan parameter added to each sweep.

In bioRad the flags and classifications of each gate would then be read as an additional param object when you load a polar volume, instead of having to deal with the points array.

bart1 commented 4 years ago

I agree with you I was now working on a quick hack to get things working for initial exploration. I seem to have it figured out now. Long term #129 is indeed the solution, i just dont have the familiarity to solve this in vol2bird yet. (just in this exercise figured out the min and max ranges are indeed ranges (atleast in 0.3.20) and not distances as I kind of default assumed).