expressions: move to point over comp duration

[aeType]

so far i found this through the help files, needless to say i am completely new to expressions,

xPos =time * 0.30
yPos = value[1] ;
if (xPos < 800){
[xPos, yPos];
}else{ [800 , yPos ] ; }


now the motion nicely stops at 800.

yet the duration of the "effect" is no where close to the duration of the composition

i read time stands for the current playhead if i am correct so i am a bit stuck now

[yikesmikes]

Hacking on your expression, this seems to do what you want:

xPos =time * 800/thisComp.duration;
yPos = value[1] ;
if (xPos < 800){
[xPos, yPos];
}else{ [800 , yPos ] ; }

Here is a little mod so you only have to enter the 800 once:

AnchorMove = 800;
xPos =time * AnchorMove/thisComp.duration;
yPos = value[1] ;
if (xPos < AnchorMove){
[xPos, yPos];
}else{ [AnchorMove , yPos ] ; }

Here are the best two links for expression self-ed:

http://www.jjgifford.com/expressions/basics/index.html

http://www.motionscript.com/

[aeType]

Brilliant, thank you, now my project will be quite a lot sped up


i was unware to get to my value as such "time * 800 / thisComp.duration"
did you find that by testing? or merely math knowledge? or even better, was the answer obvious? it feels kinda weird not finding this myself

thats pretty nice done, thanks also for the links, i'll defo spend a fair amount of time over these wonderfull expressions

many warm greets

[yikesmikes]

I just hack other peoples's expression,s mostly Dan Ebberts.

A good way to find what's avaiable is to click on that little triangle next to the pickwhip when your expression is open, "duration" was under Comp, the expression just needed to know which comp.

Here is another good place for expressions, scripts also:

http://www.aenhancers.com/

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