I need some advice on how to implement a XY pad and explaining labels for x and y axis. A XY pad is a 2 dimensional controller that can replace two knobs (which each is 1 dimensional).
Here's a picture:
The left text box describes what happens when the dot on the XY pad is dragged horizontally (x axis) and the right text box describes what happens when dragged on Y axis.
My current design requires the text boxes to be on each side of the XY pad. How can I make a visual cue that shows that the left text box shows x axis info and the right shows y axis info without just putting a text label with "x" and "y" above them?
I tried to draw an horizontal arrow beneath the left text box but it felt like it was a scrollbar or something for the text box itself...
Update: I want to keep the area as clean as possible, too much text and graphics that explains the usage of the text boxes clutters up the area.