Keyframe.inTangent

Description

Describes the tangent when approaching this point from the previous point in the curve.

The angle needs to be expressed in radians.

The tangent is really just the gradient of the slope, as in "change in y / change in x"

See Also: outTangent.

#pragma strict
public class KeyFrameTangentExample extends MonoBehaviour {
	var animCurve: AnimationCurve = null;
	function Start() {
		var ks: Keyframe[] = new Keyframe[3];
		ks[0] = new Keyframe(0, 0);
		ks[0].inTangent = 1.5708f;
		// 90 degrees up
		ks[1] = new Keyframe(4, 0);
		ks[1].inTangent = 0;
		// straight
		ks[2] = new Keyframe(6, 0);
		ks[2].inTangent = -1.5708f;
		// 90 degrees down
		animCurve = new AnimationCurve(ks);
	}
	function Update() {
		if (animCurve != null)
			transform.position = new Vector3(Time.time, animCurve.Evaluate(Time.time), 0);
	}
}

using UnityEngine;

public class KeyFrameTangentExample : MonoBehaviour
{
    AnimationCurve  animCurve = null;


    void Start()
    {
        Keyframe[] ks = new Keyframe[3];

        ks[0] = new Keyframe(0, 0);
        ks[0].inTangent = 1.5708f;          // 90 degrees up

        ks[1] = new Keyframe(4, 0);
        ks[1].inTangent = 0;                // straight

        ks[2] = new Keyframe(6, 0);
        ks[2].inTangent = -1.5708f;         // 90 degrees down

        animCurve = new AnimationCurve(ks);
    }

    void Update()
    {
        if (animCurve != null)
            transform.position = new Vector3(Time.time, animCurve.Evaluate(Time.time), 0);
    }
}