我正在研究 openlayers 3 和 ExtJS 6。我有一个加载了 GeoJson 的向量。我清除它，我想在它清除后添加一些新功能。我的新数据由商店提供。所以这就是我想在我的向量中添加的内容：
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但如果我执行： me.getData('myVector').getSource().addFeatures(myData)
我有一个错误。
我也试过
var format = new ol.format.GeoJSON();
me.getData('myVector').addFeatures(format.readFeatures( myData, {
featureProjection: 'EPSG:3857'
} ) );
它给了我 0 个错误，但是当我想显示我的所有特征时，我的向量中没有任何内容。
我能怎么做？