nl_tokens: Generates a value between 0 - 1 given the current pointer position in relation to the Knob s position and triggers output .
pl_tokens: function processPointerPosition ( e ) { var xOffset = e . clientX , yOffset = e . clientY ; var radius = this . rect . width / 2 ; this . lastValue = this . value ; if ( ! this . usesRotation ) { if ( this . lastPosition !== - 1 ) { //this.__value -= ( yOffset - this.lastPosition ) / (radius * 2); this . __value = 1 - yOffset / this . rect . height ; } } else { var xdiff = radius - xOffset ; var ydiff = radius - yOffset ; var angle = Math . PI + Math . atan2 ( ydiff , xdiff ) ; this . __value = ( <mask> + Math . PI * 1.5 ) % ( Math . PI * 2 ) / ( Math . PI * 2 ) ; if ( this . lastRotationValue > .8 && this . __value < .2 ) { this . __value = 1 ; } else if ( this . lastRotationValue < .2 && this . __value > .8 ) { this . __value = 0 ; } } if ( this . __value > 1 ) this . __value = 1 ; if ( this . __value < 0 ) this . __value = 0 ; this . lastRotationValue = this . __value ; this . lastPosition = yOffset ; var shouldDraw = this . output ( ) ; if ( shouldDraw ) this . draw ( ) ; }