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Add upgrade note about renderMode: 'image' for vector layers

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ahocevar
2019-02-09 11:35:43 +01:00
parent f6e625f21a
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changelog/upgrade-notes.md
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@@ -60,6 +60,10 @@ In addition (this should be exceedingly rare), if you previously created a `ol/t
If you were previously using `VectorTile` layers with `renderMode: 'vector'`, you have to remove this configuration option. That mode was removed. `'hybrid'` (default) and `'image'` are still available.
##### Removal of the "renderMode" option for vector layers
If you were previously using `Vector` layers with `renderMode: 'image'`, you have to remove this configuration option. Instead, use the new `ol/layer/VectorImage` layer with your `ol/source/Vector`.
##### New `prerender` and `postrender` layer events replace old `precompose`, `render` and `postcompose` events
If you were previously registering for `precompose` and `postcompose` events, you should now register for `prerender` and `postrender` events on layers. Instead of the previous `render` event, you should now listen for `postrender`. Layers are no longer composed to a single Canvas element. Instead, they are added to the map viewport as individual elements.