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# Movement bounce expression inPoint,outPoint

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 Movement bounce expression inPoint,outPoint on May 3, 2020 at 1:39:27 pm

Can any one one help with expression for position makes object bounce inPoint and outpoint
I have one for scale but can't edit it position
Thanks

 Re: Movement bounce expression inPoint,outPointon May 3, 2020 at 11:13:18 pm

What do you have for scale?

Dan

 Re: Movement bounce expression inPoint,outPointon May 3, 2020 at 11:26:15 pm

I have this, it's your expression as usual
Want edit it for position , come from out of comp and land with bounce then go out with bounce as well.

rate = 500;
rampDur = value[0]/rate;
freq = 3;
decay = 5;
w = freq*Math.PI*2;

if (time < (inPoint+outPoint)/2){
if (time < (inPoint + rampDur)){
s = linear(time,inPoint,inPoint+rampDur,0,value[0]);
}else{
t = time - (inPoint+rampDur);
s = value[0] + rate*Math.sin(t*w)/Math.exp(t*decay)/w;
}
}else{
if (time > (outPoint - rampDur)){
s = linear(time,outPoint-rampDur,outPoint,value[0],0);
}else{
t = (outPoint - rampDur) - time;
s = value[0] + rate*Math.sin(t*w)/Math.exp(t*decay)/w;
}
}
[s,s]

 Re: Movement bounce expression inPoint,outPointon May 3, 2020 at 11:35:37 pm

Something like this maybe:

``` rate = 500; rampDur = value[0]/rate; freq = 3; decay = 5; w = freq*Math.PI*2; if (time < (inPoint+outPoint)/2){ if (time < (inPoint + rampDur)){ x = linear(time,inPoint,inPoint+rampDur,-width/2,value[0]); }else{ t = time - (inPoint+rampDur); x = value[0] + rate*Math.sin(t*w)/Math.exp(t*decay)/w; } }else{ if (time > (outPoint - rampDur)){ x = linear(time,outPoint-rampDur,outPoint,value[0],thisComp.width+width/2); }else{ t = (outPoint - rampDur) - time; x = value[0] + rate*Math.sin(t*w)/Math.exp(t*decay)/w; } } [x,value[1]] ```

Dan