Most industrial automation programming happens in an environment similar to
LabView, if not LabView itself. DeltaV, Siemens, Allen-Bradley, etc. Most industrial facilities are absolutely full of them with text-based code being likely a small minority for anything higher level than the firmware of individual PLCs and such.
A lot of these environments inherit a visual presentation style (ladder logic) that comes from the pre-computer era, and that works extremely well for electrical schematics when conveying asynchronous conditional behaviors to anyone, even people without much of a math background. There's a lot of more advanced functions these days that you write in plain C code in a hierarchical block, mostly for things like motor control.
I like function block on Schneider platform for
Process control with more analog values than Boolean. It visualizes the inputs, control loop, and output nicely.
Ladder, SFC and FBD are all graphical languages used to program PLC's. Ladder is directly based on electrical ladder schematics and common in the USA. The idea was electricians and plant technicians who understood ladder schematics could now program and troubleshoot industrial computers. SFC and FBD were more common in Europe but nowadays you mostly see Structured Text, a Pascal dialect (usually with bolted on vendor OOP lunacy.)
I will admit that for some programs, Ladder is fantastic. Of course ladder can be turned into horrid spaghetti if the programmer doesn't split up the logic properly
