control RigParent rotation to drive child with jsfl

function test2(){

    // an.getDocumentDOM().getTimeline().currentLayer=2;
    var library = an.getDocumentDOM().library;
    var sourceModel = library.items[library.findItemIndex("sourceModel")];
    var timeline = sourceModel.timeline;

    //整个对象数组,保存 帧, 名字, 对象的属性(旋转,缩放,等等)   帧,还是图层?  一个帧一个动作, 帧级别吧
    var propertyArr = [];
    var layers = timeline.layers;
    var keyFrames = getKeyFrames(layers[0]);

    keyFrames.forEach(function (num){
        if (num==0){
            return
        }
        var eleDataArr=[];
        for (var i = 0; i < layers.length; i++) {
            var layerName = layers[i].name;

            var rotation = layers[i].frames[num].elements[0].rotation;
            var eleData = {layerName:layerName,rotation:Math.floor(rotation)};
            // fl.trace("fram   " +num+ "   mydata.layerName   " + layerName+ "   " + rotation);
            eleDataArr.push(eleData);
        }
        propertyArr.push({keyNum:num,data:eleDataArr});
    })

    var copySymblo = library.items[library.findItemIndex("sourceModel 复制")];
    library.editItem(copySymblo.name);

    var doc = an.getDocumentDOM();
    var timeline1 = an.getDocumentDOM().getTimeline();

    keyFrames.forEach(function (num){
        if (num==0){
            return
        }
        for (var i = 0; i < timeline1.layers.length; i++) {
            timeline1.setSelectedLayers(i);
            timeline1.setSelectedFrames(num,num+1);
            timeline1.convertToKeyframes();
        }
    })


    keyFrames.sort(function (a,b){
        return a-b;
    });

    keyFrames.forEach(function (num){
        if (num==0){
            return
        }
        for (var i = 0; i < timeline1.layers.length; i++) {

            timeline1.setSelectedLayers(i);
            timeline1.setSelectedFrames(num,num+1);
            propertyArr.forEach(function (property){
                if (property.keyNum===num){
                    property.data.forEach(function (mydata){

                        // if (timeline1.layers[i].name.indexOf("大")<0){
                        //     fl.trace("   you ==========" +timeline1.layers[i].name );
                        //     return;
                        // }
                        if (mydata.layerName===timeline1.layers[i].name){
                            if (mydata.rotation===null || mydata.rotation==0  || isNaN(mydata.rotation)){
                                return;
                            }
                            fl.trace("mydata.layerName   " + mydata.layerName+ "   " + parseFloat(mydata.rotation));
                            // doc.selection[0].rotation=parseFloat(mydata.rotation);
                            an.getDocumentDOM().rotateSelection(mydata.rotation);
                        }
                    })
                }
            })
        }
    })


}