我已经连接了Konva.Circles。但是图片的逻辑也将是相同的。请查看plunkr
var width = window.innerWidth;
var height = window.innerHeight;
var stage = new Konva.Stage({
container: 'container',
width: width,
height: height
});
var layer = new Konva.Layer();
var circle = new Konva.Circle({
x: stage.getWidth() / 2,
y: stage.getHeight() / 2,
radius: 40,
fill: 'green',
stroke: 'black',
strokeWidth: 2,
draggable: true
});
var circleA = new Konva.Circle({
x: stage.getWidth() / 5,
y: stage.getHeight() / 5,
radius: 30,
fill: 'red',
stroke: 'black',
strokeWidth: 2,
draggable: true
});
var arrow = new Konva.Arrow({
points: [circle.getX(), circle.getY(), circleA.getX(), circleA.getY()],
pointerLength: 10,
pointerWidth: 10,
fill: 'black',
stroke: 'black',
strokeWidth: 4
});
function adjustPoint(e){
var p=[circle.getX(), circle.getY(), circleA.getX(), circleA.getY()];
arrow.setPoints(p);
layer.draw();
}
circle.on('dragmove', adjustPoint);
circleA.on('dragmove', adjustPoint);
layer.add(circleA);
// add the shape to the layer
layer.add(circle);
layer.add(arrow);
// add the layer to the stage
stage.add(layer);