If you have 2018.2 you can use the following blog article (updated for newest software release) to use a more amenable method of achieving what you want to do. Timely answer to a question. This was just published a couple of days ago. Three different data source methodologies.
I don't have 2018.2 and we have a lag on getting upgrades so I'm not sure when I'll get to use this awesome update. Just hoping someone can help me with using 10.5.
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My advice would be the following:
- Download open-source QGIS
- On the top menu bar, Click Plugins -> Manage and Install Plugins
- Search for Shape Tools plugin and install
- On the top menu bar, Click Vector -> Shape Tools -> XY to line
- Assuming your data is as follows: Source_Lat, Source_Long, Dest_Lat, Dest_Long apply the following to the dialogue box:
With the OpenFlights data you'll end up with this:
One more thing to do in QGIS:
On the top menu bar, Click Vector -> Geometry Tools -> Check Validity. This ensures you don't get one of those horrible "LineStrings must have at least two co-ordinates" messages in Tableau.
Save the "Valid Output" line by right clicking and save as ESRI Shapefile.
Connect to Tableau:
and hey presto, Point & Click Great Arcs (geodesic lines) in Tableau.
But, I haven't answered your question.
- Because you are using Web Mercator, arcs will bump along the top of the map. Sorry, the world is not flat!
- Plotting progress of a real aircraft over these routes wouldn't be sensible. Like, at all. Real life stuff like weather and stacking over busy airports gets in the way. If you want to plot aircraft positions, then you probably want to look at something like ADSB Exchange - here's an example I built with Anya A'Hearn and Joe Mako :
Anything is possible ^_^