My instructional designer has tasked me with something that I need help with.
We have a graph with some information on it and 4 diagonal lines. She wants the user to be able to move the slider over the graph (the easy part. I already did this from some code I got from here last year. But I can't figure out why when you click on the slider it seems to move up and to the right alittle before you start to slide it.) and some red circles will be inline with the slider but follow the path of the diagonal lines (No heat recovery, Low pressure steam, Space heating, and Hot water heating).
I have no idea how to make one circle move with the slider but follow the path of the diagonal line. Let alone 4 different circles move with the slider and follow 4 different paths. Could someone help me get started with just 1 circle and I can probably copy the code for the other 3 circles.