Hello,
Thank you for your quick answer.
As I thought, my explanations were really really bad. I must really improve my english one day :-)
I'll try to explain it with an example :
I have a map, with 2 overlays : the first contains a GeoTiff layer, and the second contains a InMemoryFeature layer. Both have to be displayed. This works good, no problem.
I pan, in order to move the map a little to West for example. When I realease the mouse button, this happens :
- The InMemoryLayer is not visible anymore.
- The new background map is asked from server (this last about 1 second)
- The new background is then drawn
- Then the InMemotyLayer is drawn.
The "problem" (it is not really a problem, but a visual effect), is that while the server call (for a new background), the InMemoryLayer is not visible any more. And when the background is already in client cache, it goes faster, but however the InMemoryLayer is refreshed, and so there is some "blinking effect".
I would like to know if it is possible to refresh only the new features (for the area of the map that was not displayed before), so that the already drawn features are not refreshed, and there is no "blinking".
I hope you undertand what I mean,
Thanks,
Guillaume.