Hi, My program creates 2000 markers, each associated with a polygon, which represents the area of an aerial image.
When I pan the map, the features that now go in the viewport are not always get drawn. If I click on the vector layer Select item in the switcher control, then they are drawn after clicking on the switcher. 1. What could cause the problem of no-drawing? 2. I noticed noticeable performance latency. Any idea how to improve or how to design when dealing with thousands (could be tens of thousands) of markers/polygons? Thanks for your help. JK
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