if there are some ways to use the konva cache ? about react-konva

[lavrton]

Use. You can use "ref" and "refs" to get access to Konva.Node instance. And then you need to find the right moment for shape caching and it really depend your specific case.
Demo: http://jsbin.com/qofiwo/4/edit?js,output

[malygin]

thank you!

[Zabedovskiy]

Hi! Very strange cache, @lavrton. When I changed count of texts to 1000, I saw 15 fps at Stats. Although I checked use cache, I saw the same 15 fps at Stats. Are you sure that cache work fine in react-konva realization? It's really important question for me, because I have large map 482250x120250 and I have about 4000 objects on map, when I try dragging or scale it I have about 10-20 fps. It's realy few. In the future at this map will be about 30000 object and I scared about performance that I will have. Can you recomend best way for it, or may be i must change 'react-konva' to simple konva library, because on this example with cache all works fine with count 20000k of objects

https://jsfiddle.net/513c8s5d/2/

[hsluoyz]

@lavrton can you make a demo about cache usage on react-konva? I still don't get how to do it?

[lavrton]

@hsluoyz use ref (https://reactjs.org/docs/refs-and-the-dom.html) to get access to Konva node. Then call node.cache().