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[Support #VTJ-225540]: With the new trajectory controls, adjusting the Trajectory Start Level to an individual level and back to All Levels causes the trajectories to disapp



> Hello -
> 
> Our student tester found a bug with the "3D Volume Vector" display type where 
> if you change from "All Levels" to an individual starting level (e.g. "200 
> hPa"), and then back to "All Levels" the trajectories disappear.
> 

This should be fixed in tomorrow's nightly release.

> Note that I can't test this with the new "3D Grid Trajectory" display type 
> because "All Levels" isn't an option under the Trajectory Start Level menu.  
> Should this be there?
> 
This is not in my design, we need more discussion in our next telconf.

Yuan



> We have set TomR as the SSEC POC for this inquiry.
> 
> Thanks -
> Bob Carp
> 
> ----==== Inquiry ====----
> 2493
> 
> ----==== Summary ====----
> With the new trajectory controls, adjusting the Trajectory Start Level to an 
> individual level and back to All Levels causes the trajectories to disappear.
> 
> ----==== Request ====----
> 2017-05-16 - Bob Carp
> This is still a problem in IDV and McV nightlies downloaded on 05/16/2017.
> 
> Easy way to replicate:
> 1. Create data source for most recent NAM 80km CONUS
> 2. Display '3D grid > Derived > 3D Flow Vectors' with the '3D Volume 
> Vector' display type (all times, entire domain).
> 3. Change to Trajectories in the Layer Controls/Displays tab
> * At this point, trajectories at All Levels are displayed
> 4. Change to an individual level, such as 200 hPa.
> * This works as expected
> 5. Change back to 'All Levels'.
> * There are no error messages, but the trajectories disappear
> 
> Note that this can't currently be tested in the IDV with the new "3D Grid 
> Trajectory" because "All Levels" is not an available option in the Trajectory 
> Start Level dropdown.
> 
> 2017-03-20 - Bob Carp
> In addition, possibly related, there are a variety of trajectory start levels 
> available in the menu that don't work.
> 
> For example, create a 3D Volume Vector display over the CONUS from GFS 2.5 
> degree global data.  There are several levels in this dropdown that don't 
> work, meaning there's no errors, but no trajectories plot.  Adjust the Z Skip 
> in the Layer Controls from 1 to 0, and the Trajectory Start Level values in 
> the menu change and now everything works as expected (All Levels still 
> breaks, as reported below).  Change Z Skip back to 1 and things still work, 
> so something isn't being initialized correctly in this Z Skip dropdown menu.
> 
> 2017-03-20 - Bob Carp
> This was mentioned again by Sammy on 03/17:
> 
> On Eugene and Granite for the 3D data, when toggling to a specified level, 
> the trajectories disappear and don't come back when changing to 'All Levels.' 
> If you click back to 'Vectors' and then to 'Trajectories,' it defaults to 
> 'All Levels' and the trajectories appear again. Z and XY skip work with 'All 
> Levels,' and when changing Z and XY skip first and then changing to a 
> specified level,  but when going back to 'All Levels,' the trajectories 
> disappear. Again, if you toggle back to 'Vectors' and then to 'Trajectories' 
> they come back with correct skips at 'All Levels.'
> 
> 2017-02-17 - Bob Carp
> From Sammy:
> 
> Regarding testing of Inquiry 2360, I had the same issues when plotting the 3D 
> data as Matt did on both OSX Intel and Linux 64 (Eugene). The behavior was 
> the same for different displays too (i.e. 3D volume vector, 3D volume vector 
> colored by another parameter, etc.) I also had some issues with 'xy skip' 
> when testing the 3D data. When changing the 'xy skip' in a specified level 
> and going from that specified level back to 'All Levels' the trajectories 
> disappear. This occurred on different displays and different datasets. The 
> datasets tested were GFS 2.5 degree and GFS 90km CONUS.
> 
> 2017-02-16 - Bob Carp
> Create a display of 3D trajectories (described in Request 4 of Inquiry 2360). 
>  Adjust the Trajectory Start Level from All Levels to an individual level and 
> back to All Levels.  At this point, the trajectories disappear.  They come 
> back if you change to displaying vectors and then trajectories in the Layer 
> Controls.
> 
> 
> ################################################################################
> 
> http://mcidas.ssec.wisc.edu/inquiry-v/index.php?inquiry=2493
> 
> 


Ticket Details
===================
Ticket ID: VTJ-225540
Department: Support IDV
Priority: Normal
Status: Closed
===================
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