map组件怎么设置让其中一个marker不参与碰撞？ 如下代码，让B点和C点参与碰撞， A点不参与

this.mapCtx.addMarkers({

markers: [{

id: 6755555567,

zIndex: 100001,

latitude: 34.210412,

longitude: 108.963814,

iconPath: '../../image/my_location.png',

label: { content: 'A点'},

width: 60,

height: 60,

},{

id: 6755555563,

zIndex: 100000,

latitude: 34.210422,

longitude: 108.964814,

iconPath: '../../image/my_location.png',

label: { content: 'B点'},

collision: 'marker',

collisionRelation: 'together',

width: 60,

height: 60,

},{

id: 6755555561,

zIndex: 9999,

latitude: 34.211422,

longitude: 108.965814,

iconPath: '../../image/my_location.png',

label: { content: 'C点'},

collision: 'marker',

collisionRelation: 'together',

width: 60,

height: 60,

}]

})