MFnAnimCurve.getTangent signature change from 2017 to 2018

[Anonymous]

Hey all,

So, apparently the function signature for Snippet

MFnAnimCurve.getTangent(

has changed from float to double.

Thus breaking a number of methods I've been working on. I'd rather not have to regenerate new projects for these methods, specific to 2018.  Is there a recommended work-around for this?

[cheng_xi_li · Accepted solution]

Hi,

Are you using .Net? If you would like to fix the compiling errors without modifying original code, you could try extension methods.

e.g.

using Autodesk.Maya.OpenMaya;
using Autodesk.Maya.OpenMayaAnim;

//Enable it if it is compiling for Maya 2018
using MFnAnimCurveExtension;

namespace MFnAnimCurveTest
{
    public class CompilerTest
    {
        public void doIt(MObject obj)
        {
            float x = 0;
            float y = 0;
            var fn = new MFnAnimCurve(obj);
            fn.getTangent(0, ref x, ref y, true);
        }
    }
}

namespace MFnAnimCurveExtension
{
    public static class MFnAnimCurveExtension
    {
        public static void getTangent(this MFnAnimCurve curve, uint index, ref float x, ref float y, bool inTangent)
        {
            double _x = 0;
            double _y = 0;
            curve.getTangent(index, ref _x, ref _y, inTangent);
            x = (float)_x;
            y = (float)_y;
        }
    }
}

Hope it helps.

Yours,

Li

[Anonymous]

I think I'm good with this.

Feels a lot cleaner than going about building out a bunch of #if/#else/#endif cases.

I'll give it a go, and accept the solution if it works for me.