map插件改变circles大小
需要做个地图功能,做3个圆圈 3k,5k,10k的范围,我现在用controls里放了3个数字图片,然后点击图片的事件里希望能调整圆圈的radius。点了以后在console监控属性,radius的数值是改变了, 但是模拟器里地图上的圆圈就消失了,请问应该如何设置半径才能得到想要的结果呢? 附上部分代码 [代码]//onload中的circles设置[代码][代码]wx.getLocation({[代码][代码] [代码][代码]type: [代码][代码]"wgs84"[代码][代码],[代码][代码] [代码][代码]success: [代码][代码]function[代码] [代码](res) {[代码][代码] [代码][代码]_this.setData({[代码][代码] [代码][代码]latitude: res.latitude,[代码][代码] [代码][代码]longtitude: res.longitude,[代码][代码] [代码][代码]circles:[{[代码][代码] [代码][代码]latitude: res.latitude,[代码][代码] [代码][代码]longitude: res.longitude,[代码][代码] [代码][代码]color: [代码][代码]'#FF0000DD'[代码][代码],[代码][代码] [代码][代码]fillColor: [代码][代码]'#7cb5ec88'[代码][代码],[代码][代码] [代码][代码]radius: 3000,[代码][代码] [代码][代码]strokeWidth: 1[代码][代码] [代码][代码]}][代码][代码] [代码] [代码]//controlTap中的代码[代码][代码]controltap(e){[代码][代码] [代码][代码]var[代码] [代码]that = [代码][代码]this[代码][代码]; [代码][代码] [代码] [代码] [代码][代码]if[代码] [代码](e.controlId == 3){ [代码][代码] [代码][代码]that.setData({[代码][代码] [代码][代码]circles: [{[代码][代码] [代码][代码]latitude: 121.400420,[代码][代码] [代码][代码]longitude: 31.171760,[代码][代码] [代码][代码]color: [代码][代码]'#FF0000DD'[代码][代码],[代码][代码] [代码][代码]fillColor: [代码][代码]'#7cb5ec88'[代码][代码],[代码][代码] [代码][代码]radius: 7000,[代码][代码] [代码][代码]strokeWidth: 1[代码][代码] [代码][代码]}] [代码][代码] [代码][代码]}) [代码][代码] [代码][代码]}[代码]