[Alex Printz]

Dan’s answer is what I do; I check the value’s array length of position or anchorPoint.

Alex Printz
Mograph Designer

[Alex Printz]

Oops, you forgot a paranthesis on your last point:

targetPath.pointOnPath(0) + (targetPath.normalOnPath(0)*-(thickness)),

Alex Printz
Mograph Designer

[Alex Printz]

Try this, i’m guessing ‘path’ can’t be used as your variable since it’s usually a reserved word. EIther that, or in the createPath the ‘=’ symbols are breaking your code.

thickness = 100;
targetPath = thisComp.layer("Driver").content("Tracé 1").path;
pList = [
targetPath.pointOnPath(0) + (targetPath.normalOnPath(0)*thickness),
targetPath.pointOnPath(0.2) + (targetPath.normalOnPath(0.2)*(thickness*.8)),
targetPath.pointOnPath(0.4) + (targetPath.normalOnPath(0.4)*(thickness*.6)),
targetPath.pointOnPath(0.6) + (targetPath.normalOnPath(0.6)*(thickness*.4)),
targetPath.pointOnPath(0.8) + (targetPath.normalOnPath(0.8)*(thickness*.2)),
targetPath.pointOnPath(1),
targetPath.pointOnPath(0.8) + (targetPath.normalOnPath(0.2)*(thickness*-.2)),
targetPath.pointOnPath(0.6) + (targetPath.normalOnPath(0.4)*(thickness*-.4)),
targetPath.pointOnPath(0.4) + (targetPath.normalOnPath(0.6)*(thickness*-.6)),
targetPath.pointOnPath(0.2) + (targetPath.normalOnPath(0.8)*(thickness*-.8)),
targetPath.pointOnPath(0) + (targetPath.normalOnPath(0)*-(thickness),
];

createPath(pList, [], [], true)

Alex Printz
Mograph Designer

[Alex Printz]

you could look at the pt_ExpressEdit plugin, it has a search feature for expressions, you might be able to get some ideas from how that works.

Alex Printz
Mograph Designer

[Alex Printz]

I have built a trim paths expression to do this in the past.

IIRC, you need to make a slider to set the ‘full’ length, then create a loop that measures the distances between pointOnPaths on a spline and adds them together, compares that to the ‘full’ length, and if the current spline is measured longer than that trim that percentage. I used a 2nd slider to set the number of points to compare (I think I liked around 12 or so, not too many to bog the system, not too few to look choppy)

It worked well for what I needed to do (swinging rope I think?)

Alex Printz
Mograph Designer

[Alex Printz]

Try following something like this, it’s been a while since I made a JSON from scratch:

https://lesterbanks.com/2018/09/create-json-file-ae/

Alex Printz
Mograph Designer

[Alex Printz]

“AbileneChr” : {
“TEAM”: “Abilene Chr”,
“MASCOT”: “Wildcats”,
“LOGO”: “ABILENE_CHRISTIAN”
},
“AirForce”:{
“TEAM”: “Air Force”,
“MASCOT”: “Falcons”,
“LOGO”: “AIR_FORCE”
},

I meant.

I don’t think you can create a loop through a json to look for items and compare by names; JSON is an unordered property, so it needs to be called directly through a string. There is no index count to go through.

Alex Printz
Mograph Designer

[Alex Printz]

Yeah, all you have to do is this:

AbileneChr{
“TEAM”: “Abilene Chr”,
“MASCOT”: “Wildcats”,
“LOGO”: “ABILENE_CHRISTIAN”
},
AirForce{
“TEAM”: “Air Force”,
“MASCOT”: “Falcons”,
“LOGO”: “AIR_FORCE”
},

jsonData.AbileneChr.MASCOT

just make each category the team name without spaces. Format however you want. You could either make your scripts parse out and space characters, or just don’t type them into your text box when you tell it what to grab.

Alex Printz
Mograph Designer

[Alex Printz]

I think if you create object names prior to your properties of that object, you should be able to easily call them (scrub through a slider, etc.):

“1” : {
“TEAM”: “Abilene Chr”,
“MASCOT”: “Wildcats”,
“LOGO”: “ABILENE_CHRISTIAN”
},
“2” : {
“TEAM”: “Air Force”,
“MASCOT”: “Falcons”,
“LOGO”: “AIR_FORCE”
},

then you just call it like this:

jsonData.1.LOGO

Alex Printz
Mograph Designer

[Alex Printz]

L should be the layer you want to target that is orientated to a path:

L=thisComp.layer("LayerOrientatedToPath");
v = L.toWorldVec([1,0,0]);
if(hasParent) v = parent.fromWorldVec(v);
radiansToDegrees(Math.atan2(v[1],v[0]))

Alex Printz
Mograph Designer