请问怎样显示geojson中的区域名称？

[DuShuYuan]

比如加载以下json只有线，怎样显示“北京市”文字？properties.name 字段

{
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"properties": {
"adcode": 110000,
"name": "北京市",
"center": [
116.405285,
39.904989
],
"centroid": [
116.41995,
40.18994
],
"childrenNum": 16,
"level": "province",
"parent": {
"adcode": 100000
},
"subFeatureIndex": 0,
"acroutes": [
100000
]
},
"geometry": {
"type": "MultiPolygon",
"coordinates": [
[
[

[DuShuYuan]

设置了对应属性 showCenterLabel: true, centerLabelPropertyName，没有效果
defaultStyle: {
outlineColor: 'rgb(255,0,0)',
lineWidth: 1,
fill: false,
tileCacheSize: 200,
showMaker: true,
showCenterLabel: true,
pointSize: 15,
ringRadius: 10,
fontColor: 'rgba(255,0,0,1)',
fontSize: 18,
labelOffsetX: -10,
labelOffsetY: -5,
showLabel: true,
showMarker: true,
labelPropertyName: 'name',
centerLabelPropertyName: 'name'
},

[MikesWei]

showCenterLabel只对多边形有效。建议单独使用点数据集显示标注