Thanks both of you for the advices. This indeed speed up the map a lot.
This doesn't solve all issues since now the resolution is bad, but may
help to get an idea for a fix. I'll let you know if I find any
performance improvements.
Julien
On 2016-10-13 03:13 AM, Viglino Jean-Marc via OL3 Dev wrote:
Hello,
You can use the hidpi option to turn off WMS request based on
pixelRatio. The result is mainly visible on texts.
See http://jsfiddle.net/Viglino/Lpbnw14z/
Also pay attention to the fact the canvas map already gets into account
the pixelRatio, ie. a 100x100 px map will result in a 200x200px canvas
on mobile (with pixelRatio of 2).
In your fiddle, your map canvas has a 950x1400 px canvas on a laptop,
but 1900x2800 px on a mobile: 4 times more area and 4 time longer to draw...
@+
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