delayed decay

[Koby Goldberg]

Try this:
use the delay paremether as the starting time for the decay.

veloc = 7;
amplitude = 80;
decay = 0.7;
delay = 2;

sin = amplitude*Math.sin(veloc*time);
(time < delay) ? sin : sin/Math.exp(decay*(time-delay))

Koby.

[Anthony Faulkner]

Thanks for your reply, i got it!!

[Brendan Mccullough]

I’ve got a fair handle on expressions, but you obviously have some experience with javascript, because I had to look up the if statement shorthand you used. For those that were confused by the conditional,

(time < delay) ? sin : sin/Math.exp(decay*(time-delay))

it is the same thing as writing

if(time < delay) { sin; } else { sin/Math.exp(decay*(time-delay)) }

Google gave me clarification at this link (blog.techsaints.com).

I learned something new today! I love new shortcuts. 🙂

[Nathaniel Schweinberg]

so I’m using a similar expression that’s shown below…

but for some reason it jumps down before it goes up and it looks unnatural. any ideas why its working like this?

if (time > 1) {
veloc=15;
amplitude=75;
decay=effect("Decay")("Slider");
y=amplitude*Math.sin(veloc*time)/Math.exp(decay*time);
position+[0,y]
}
else{value}