class:: Line summary:: Line generator. related:: Classes/XLine categories:: UGens>Envelopes Description:: Generates a line from the start value to the end value. classmethods:: method::ar, kr argument::start Starting value. argument::end Ending value. argument::dur Duration in seconds. argument::mul Output will be multiplied by this value. argument::add This value will be added to the output. argument::doneAction A doneAction to be evaluated when the Line is completed. See link::Classes/Done:: for more detail. Examples:: code:: // XLine is usually better than Line for frequency play({ SinOsc.ar(Line.kr(200,17000,10),0,0.1) }); ::