handle different length on mixpath

[tony-schumacher]

Mixpath was crashing when the length of the curve arrays were different.
This PR fixes it by using mixing the previous Path with the new one.

[wcandillon]

Should we return an error in such a scenario? And maybe recommend a library such as https://github.com/notoriousb1t/polymorph to prepare the paths? Let me know your thoughts on this.

[tony-schumacher]

Hey @wcandillon,

I will check this out. An error makes sense if having the same data length is a requirement. If not a I would expect the method to handle it.

Another solution would be something likes this which results in a better animation:

    const p1a = {
      ...p2,
      curves: p2.curves.map((_curve) => {
        const c = JSON.parse(JSON.stringify(_curve));

        c.c1.x = 0;
        c.c2.x = 0;
        c.to.x = 0;

        c.c1.y = maxY;
        c.c2.y = maxY;
        c.to.y = maxY;

        return c;
      }),
    };

    return interpolatePath(value, [0, 1], [p1a, p2]);

[ksinghj]

If having the same path length is a requirement we could at least note this in the documentation? Failing that, I would +1 this change!

[tony-schumacher]

I forked the library and used the change already. Works for me, even though the animation looks better if the length is the same. Might handle this with a functions which reduces all arrays to the same length.

[BernardoQuina]

I forked the library and used the change already. Works for me, even though the animation looks better if the length is the same. Might handle this with a functions which reduces all arrays to the same length.

I tried to install your fork but yarn/npm are not actually building the lib/modules, only installing the typescript src.
Is there a way I could use your fork? I can't figure it out. Thanks!

[wcandillon]

@TonySchu I'm confused on what this change does exactly, can you walk me through me? Maybe provide me with two paths to interpolate as a test? you can add interpolate path test cases too.