OK! I think I figured out why I was running into issues. I recreated the SARndbox.pipe file in the /bin directory with mknod SARndbox.pipe p.

If you do it this way it does not create a SARndbox.fifo named pipe file. So if I try to reference it with SARndbox -uhm -fpv -cp SARndbox.fifo or send it commands like echo "colorMap <color map file>" > SARndbox.fifo it doesn’t work.

So the solution is very simple 🙂 I changed any reference toSARndbox.fifo to SARndbox.pipe and voila! Everything works great! I can update the color maps with a simple script just how you outlined above in real time.

These instructions are super helpful! So thank you for posting a good explanation. I am having a strange issue though. I can send the command to the pipe and it does change the elevation map colors but only after I restart the program. I’m not getting any errors in the command line where SARndbox is running. I’ve tried creating a pipe file with both mknod and mkfifo but neither will cause the program to update in realtime. Any help is very appreciated!