help with inTangents

[EastofWest]

Hive mind...a bit new to expressions and, well I could be an engineer if i could forgo the maths....

I’m having a hard time getting the inTangents and outTangents to work. I have a path with 3 points, and when I add [3] to in tangents and [3] to outTangents I get an error….thoughts?

Here is my script…. The first point is attached to a moving null, but the other two aren’t….

createPath(points = [thisComp.layer("Watch null").transform.position+thisComp.layer("Particle Motion").transform.position, thisComp.layer("Null 135").transform.position, [1460,0]], inTangents = [], outTangents = [], isClosed = false)

my problem is I want the path to have curves and not be linear. I cant figure out what to put in the brackets in the tangents part to make the spline....

TIA,

B

[Tomas Sinkunas]

I’m having a hard time getting the inTangents and outTangents to work. I have a path with 3 points, and when I add [3] to in tangents and [3] to outTangents I get an error….thoughts?

Arrays start with index 0, not 1. Therefore, when you have 3 elements in the array (inTangents for instance), then the index of the last inTangent is [2], not [3];

[EastofWest]

Thanks Tomas, but lets assume for a minute that i'm an idiot...which I generally am. How do I change my script (referenced in orig post) to account for that?

thx

[Tomas Sinkunas]

What about this? Im not sure about values for in/out tangents, as it's specific for every case, but here's a general code, that uses some random tangents.

var watchNull = thisComp.layer("Watch null");
var particleMotion = thisComp.layer("Particle Motion");
var null135 = thisComp.layer("Null 135");

var p1 = watchNull.transform.position.value + particleMotion.transform.position.value;
var p2 = null135.transform.position.value;
var p3 = [1460, 0];
var points = [p1, p2, p3];

var inT1 = [-10, 0];
var inT2 = [-10, 0];
var inT3 = [-10, 0];
var inTangens = [inT1, inT2, inT3];

var outT1 = [10, 0];
var outT2 = [10, 0];
var outT3 = [10, 0];
var outTangens = [outT1, outT2, outT3];

createPath(points, inTangens, outTangens, false)

[EastofWest]

Thank you sir....I'll give it a try. Appreciate it.

b