Need help with slider

[Jemo]

So I have a slider and it works and all but how do I get the output to be used as a variable? basically when I move the slider it supposed to change the angle of a force but its not working.
thanks

[Chrisir]

can you show your code please?

are you using controlp5? Check its examples (website: processing GUI, controlP5)

[jafal]

Slider and box rotation

import controlP5.*; ControlP5 cp5; Slider boxSize; Slider2D rotate; ColorWheel col; Toggle start; void setup() { size(800, 600, P3D); cp5 = new ControlP5(this); boxSize = cp5.addSlider("BOX SIZE") .setPosition(20, 20) .setRange(0, 400) .setValue(200); rotate = cp5.addSlider2D("ROTATION") .setPosition(20, 40) .setSize(100, 100) .setMinMax(1.0, 1.0, 10.0, 10.0) .setValue(2.0, 2.0); start = cp5.addToggle("START/STOP") .setPosition(20, …