[OpenLayers-Users] Preloading WFS feature data [SEC=UNCLASSIFIED]

[John Phan]

Hi,

I have a vector layer with some feature data. The layer is not visible at first (vectorLayer.setVisibility(false)), but made visible when user starts selecting an option. But I only want certain vector points drawn based on their feature attributes (i.e. vectorLayer.features.attributes.<data>).

When a user option is selected, I loop through all features (i.e. vectorLayer.features.length). Set renderIntent to no display ( OpenLayers.Style({display: "none"}) ) for the vector point if its feature attribute ( vectorLayer.features.attributes.<data> ) does not match user input.

This only works when all the feature data are loaded onto the browser. That is all features are drawn because I can't enter the loop the first time (length=0)

Does anyone know how to preload those features before the layer is made visible the first time?

Thanks,
John


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