GoJs中的动画使用示例详解

//data
nodes:[
{ key: "1", color: "#99FFFF",text:"三国",figure:"Rectangle" },
{ key: "1-1", color: "#FF0000",text:"魏",figure:"Circle" },
{ key: "1-2", color: "#FFFF66",text:"蜀",figure:"Circle"},
{ key: "1-3", color: "#0000FF",text:"吴",figure:"Circle" },
],
links:[
{
  from:"1",
  to:"1-1"
},
{
  from:"1",
  to:"1-2"
},
{
  from:"1",
  to:"1-3"
},
]
//methods
Default(){
    this.myDiagram.animationManager.initialAnimationStyle = go.AnimationManager.Default;
    this.myDiagram.model = go.Model.fromJSON(this.myDiagram.model.toJSON());
},
AnimateLocations(){
    this.myDiagram.animationManager.initialAnimationStyle = go.AnimationManager.AnimateLocations;
    this.myDiagram.model = go.Model.fromJSON(this.myDiagram.model.toJSON());
},

this.myDiagram.nodeTemplate =
    $$(go.Node, "Vertical",
    { selectionAdorned: false,selectionChanged: this.onSelectionChanged }, 
    $$(go.Shape, "Circle",
        { width: 30, height: 30,name:"ICON" },
        new go.AnimationTrigger('stroke'),
        new go.AnimationTrigger('fill'),
        new go.Binding("figure", "figure"),
      ),
    $$(go.TextBlock, 
        new go.Binding("text", "text")),
   );
   this.myDiagram.model = new go.GraphLinksModel(this.nodes, this.links);
},
animateTrigger(){
    this.myDiagram.commit(function(diag) {
        diag.nodes.each(function(node){
            node.elt(0).stroke = go.Brush.randomColor();
            node.elt(0).fill = go.Brush.randomColor();
        })
    });
}

this.myDiagram.aDDDiagramListener('SelectionDeleting', function(e) {
    e.subject.each(function(part) {
        if (!(part instanceof go.Node)) return;
        let animation = new go.Animation();
        let deletePart = part.copy();
        animation.add(deletePart, "scale", deletePart.scale, 0.01);
        animation.add(deletePart, "angle", deletePart.angle, 360);
        animation.addTemporaryPart(deletePart, myDiagram);
        animation.start();
    });
});

//html
<button @click="angle">angle</button>
<button @click="position">position</button>
<button @click="zoomOut">zoomOut</button>
<button @click="zoomIn">zoomIn</button>
//methods
angle(){
    this.myDiagram.animationManager.stopAnimation(true);
    let animation = new go.Animation();
    this.myDiagram.nodes.each(function(node) {
        animation.add(node, "angle", node.angle, Math.random() * 90);
    });
    animation.start(); 
},
position(){
        this.myDiagram.animationManager.stopAnimation(true);
        let animation = new go.Animation();
        animation.reversible = true; 
        animation.add(this.myDiagram, "position", this.myDiagram.position, this.myDiagram.position.copy().offset(200, 15));
        animation.duration = 700;
        animation.start(); 
},
zoomOut(){
        this.myDiagram.animationManager.stopAnimation(true);
        let animation = new go.Animation();
        animation.reversible = true; 
        animation.add(this.myDiagram, "scale", this.myDiagram.scale, 0.2);
        animation.start(); 
},
zoomIn(){
        this.myDiagram.animationManager.stopAnimation(true);
        let animation = new go.Animation();
        animation.reversible = true; 
        animation.add(this.myDiagram, "scale", this.myDiagram.scale, 4);
        animation.start(); 
}