Openlayers-3强制刷新地图 [英] Openlayers-3 Force a map refresh

问题描述

我有一个自定义样式，可在地图上显示/隐藏地图项，但是应用地图样式后，直到由于功能更新而刷新地图时，该样式才会激活，但是我需要它立即触发.

I have a custom styling that shows/hides features on the map, but when it is applied it doesn't activate until the map refreshes due to a feature update, but I need it to trigger immediately.

我尝试了map.render和renderSync()，但是它们什么也没做. mapResize()似乎也没有执行任何操作，但是如果我等待功能更新或移动地图，它将起作用.

I tried map.render and renderSync() but they did nothing. mapResize() doesn't appear to do anything either, but if I wait for a feature to be updated or move the map it works.

有什么想法吗?无论功能更新如何，我如何强制地图按需重绘?

Any ideas? How can I FORCE the map to redraw on demand, regardless of a feature update?

推荐答案

我相信您需要强制图层的源进行更新，可以通过在其上调用changed函数来做到这一点:

I believe you need to force your layer's source to update, you can do so by calling the changed function on it:

yourLayer.getSource().changed();

请参阅: http://openlayers.org/en/v3.6.0/apidoc/ol.source.Source.html

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