/*

	This example demonstrates how to add an ActionDeltaItem of type 

	siModificationDeltaExpression to a ActionDelta.

*/

NewScene (null, false);

// Create a reference model from a cube

var oRoot = Application.ActiveProject.ActiveScene.Root;

var oCube = oRoot.AddGeometry("Cube", "MeshSurface");

var emdlFileRefModel = XSIUtils.BuildPath(Application.InstallationPath(siProjectPath), "Models", "MyModel.emdl"); 

CreateModelAndConvertToRef(oCube, emdlFileRefModel);

// Create a cone

var oCone = oRoot.AddGeometry("Cone", "MeshSurface");

// Translate the cube that also generate a delta

Translate(oCone , 3.0, 3.0, 0, siRelative, siView, siObj, siXYZ, null, null, null, null, null, null, null, null, null, 0, null);

// Add the Delta object

var oDelta = AddDelta(oCube.Model);

// Add an action of type siModificationDeltaExpression

var oDeltaAction = oDelta.AddAction(siModificationDeltaExpression)

// Add the expression item

var oActionDeltaItem = oDeltaAction.AddExpressionItem(oCube + ".kine.global.posx",  "5*sin(" + oCone + ".kine.local.posx * 15)");

// Apply modification

oDelta.Apply();