对于链接 - 在JointJS图中 - 我试图实现本教程(http://jointjs.com/tutorial/constraint-move-to-circle)来移动链接上的标签,但我不明白在哪里放置ConstraintElementView
。JointJS:使链接标签可以在链接本身上移动
- 我想使链接的标签在链接上移动。那么如何将链接定义为可移动标签的“路径”呢?
ConstraintElementView
var constraint = label; // ???
var ConstraintElementView = joint.dia.ElementView.extend({
pointerdown: function(evt, x, y) {
var position = this.model.get('position');
var size = this.model.get('size');
var center = g.rect(position.x, position.y, size.width, size.height).center();
var intersection = constraint.intersectionWithLineFromCenterToPoint(center);
joint.dia.ElementView.prototype.pointerdown.apply(this, [evt, intersection.x, intersection.y]);
},
pointermove: function(evt, x, y) {
var intersection = constraint.intersectionWithLineFromCenterToPoint(g.point(x, y));
joint.dia.ElementView.prototype.pointermove.apply(this, [evt, intersection.x, intersection.y]);
}
});
链接标签
paper.on({
/**
* Doubleclick on link: Add label for link
*/
'cell:pointerdblclick': function(cellView, event, x, y){
if (cellView.model.isLink()) {
cellView.model.label(0, {
position: .5,
attrs: {
rect: { fill: '#eeeeee' },
text: { text: 'text', 'font-size': 12, ref: 'rect' }
}
});
}
}
});
纸
var paper = new joint.dia.Paper({
el: $('#canvas'),
width: 801,
height: 496,
model: graph,
gridSize: 10,
elementView: ConstraintElementView,
defaultLink: new joint.dia.Link({
router: { name: 'manhattan' },
connector: { name: 'rounded' },
attrs: {
'.marker-target': { d: 'M 10 0 L 0 5 L 10 10 z', fill: '#6a6c8a', stroke: '#6a6c8a' },
'.connection': { stroke: '#6a6c8a', 'stroke-width': 2 }
}
})
});
- 因为它可以通过链接移动,所以它应该捕捉到曼哈顿式链接的每个部分的中心。但我不认为有机会获得每个细分市场中心的价值。
但是这是计算直接距离。我需要曼哈顿线。 – user3142695
然后使用'曼哈顿距离' – user3848987
是否有可能获得曼哈顿距离的每个部分的大小? – user3142695