Hello,
we have built a widget that replaces some of the functionality provided
by the LayersView. It's basically a combo box with the current layers,
and which sets the visibility for all layers to be false, except the one
chosen by the combo. Furthermore, on selecting, the map should zoom to
the layer's bbox. Like this (in pseudo):
1) User selects layer on combo?
2) for each layer
if layer is not selected layer -> setVisible( false )
else setVisible( true )
map refreshes here!
3) map.setBbox( selectedLayer.getBbox() )
map refreshes again!
This all works fine. However, there are two events (or more) being
triggered: layer visibility (implies a map refresh), jump to bbox
(another map refresh).
Is there a way to temporarily disable map refresh? As in
1) map.setFiringEvents( false );
2) Turn layers' visibility on/off
3) map.setBbox( selectedLayer.getBbox() )
4) map.setFiringEvents( true );
5) map.refresh()
Thanks in advance,
Ugo
--
Ugo Taddei
Fraunhofer Institut Intelligente Analyse- und Informationssysteme (FhG IAIS)
http://www.iais.fraunhofer.de
Department Knowledge Discovery - IAIS.KD -
Working Group Spatial Decision Support
http://www.iais.fraunhofer.de/kd.html
phone (+49)2241-14-2184 fax (+49)2241-14-2072
Schloss Birlinghoven, D-53754 Sankt Augustin, Germany
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