绘制/修改上的openlayers错误(在vuejs中) [英] openlayers error on draw/modify (in vuejs)

问题描述

我正在使用的代码在我先前的问题中(已解决)

交互作用非常好，我的目标是获取一组坐标，并且效果也很好.尽管一切正常，但是每次在显示区域中移动鼠标时，控制台都会出现错误.它不会影响功能，但是显然我需要解决它...有什么想法吗?

The interaction works perfectly and my goal is to get an array of coordinates, also works perfectly. Although everything works, I am getting an error in console every time I move the mouse in the display area. It doesn't affect functioning, but obviously I need to solve it... any ideas?

Draw.js?ac29:579 Uncaught TypeError: Cannot read property 'getGeometry' of null
    at Draw.modifyDrawing_ (Draw.js?ac29:579)
    at Draw.handlePointerMove_ (Draw.js?ac29:479)
    at Draw.handleEvent (Draw.js?ac29:871)
    at Map.handleMapBrowserEvent (PluggableMap.js?fe37:924)
    at MapBrowserEventHandler.boundListener (events.js?1e8d:41)
    at MapBrowserEventHandler.dispatchEvent (Target.js?0ec0:101)
    at MapBrowserEventHandler.handlePointerMove_ (MapBrowserEventHandler.js?2ad6:260)
    at PointerEventHandler.boundListener (events.js?1e8d:41)
    at PointerEventHandler.dispatchEvent (Target.js?0ec0:101)
    at PointerEventHandler.fireNativeEvent (PointerEventHandler.js?b114:397)

推荐答案

我正在尝试一些随机的操作，但是您可能想在当前代码中添加一些条件:

I'm trying something quite random, but you maybe want to add some condition in you current code:

var modify = new Modify({source: source});
modify.on('modifyend',function(e){
   if(e.features && e.features.getArray().length) { //add this line
      console.log("feature id is",e.features.getArray()[0].getGeometry().getCoordinates()[0]);
   }
});

这篇关于绘制/修改上的openlayers错误(在vuejs中)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！