Tutorial – Visualizing Flight Paths in Houdini with Real World Data
At the intersection of programming and art, lies Houdini. I’ve not been so intrigued with a software package as I have been while learning Houdini and this tutorial from Entagma is another interesting application of how to use external data to drive a visual.
A short summary of what goes on: You’ll learn how to take spreadsheet data from openflights.org which contains airline routes and world airports and import the data into Houdini using the Tableimport node. After importing, they use a series of VEXpressions to convert the data from spherical to cartesian point locations to define each airport on the planet.
The flight data is then used to create polylines for each flight. Since point to point creates lines that pass through the surface of the earth, the lines are resampled and projected onto a sphere.