/*

	This example demonstrates how to set up and populate an fcurve 

	using the z-position values from an animation fcurve created

	by setting keys on a null. The newly created z-position fcurve

	is then applied to a sphere's z-position.

*/

NewScene(null, false);

// Get a null and animate it.

var oRoot = Application.ActiveProject.ActiveScene.Root;

var oNull = oRoot.AddPrimitive("Null");

SaveKey(oNull + ".kine.local.posx", 1);

SaveKey(oNull + ".kine.local.posy", 1);

SaveKey(oNull + ".kine.local.posz", 1);

SetValue("PlayControl.Current", 50);

Translate(oNull, -14, 0.5, -12, siRelative, siView, siObj, siXYZ);

SaveKey(oNull + ".kine.local.posx", 50);

SaveKey(oNull + ".kine.local.posy", 50);

SaveKey(oNull + ".kine.local.posz", 50);

// Loop through the animation and store the z values into a key array for AddFCurve2 (aZKeys).

var oPosVector = XSIMath.CreateVector3();

var aZKeys = new Array(50 * 2+1);

for ( i=0; i<=50; i++ )

{

	var oCurrentTransform = oNull.Kinematics.Global.Transform(i);

	oCurrentTransform.GetTranslation(oPosVector);

	aZKeys[i*2] = i;

	aZKeys[i*2+1] = oPosVector.z;

}

// Now get a sphere and place the FCurves on it.

var oSphere = oRoot.AddGeometry("Sphere", "MeshSurface");

oSphere.Kinematics.Global.Parameters("posz").AddFCurve2(aZKeys);