AW: [OpenLayers-Users] Re: help with removing/replacing a markerafter click event

Nick Kendall n.e.kendall at gmail.com
Mon Jun 13 07:44:37 EDT 2011


Thanks, Arnd, I'll give it a crack 

Sent from my mobile device

On Jun 13, 2011, at 2:13 AM, "Arnd Wippermann" <arnd.wippermann at web.de> wrote:

> if you use Feature.Vector markers to display your markers, try
>  
> if(vectorLayer.features.length>0)
>     vectorLayer.removeFeatures(vectorLayer.features);
>  
> to remove the marker before you add a marker at the new position.
>  
> http://gis.ibbeck.de/ginfo/apps/OLExamples/OL210/Map_mit_Marker.asp
> 
> or use a DragFeature.Control to drag the marker around.
>  
> http://gis.ibbeck.de/ginfo/apps/OLExamples/OL26/examples/gc_example.html
>  
>  Or both.
>  
> i was not able to update the position of the marker by updating the geometry and redraw the feature. The label moves to the new position, but the marker (the externalGraphic) wouldn't move!?
>  
> Arnd
>  
>  
>  
> Von: openlayers-users-bounces at lists.osgeo.org [mailto:openlayers-users-bounces at lists.osgeo.org] Im Auftrag von Nicholas Efremov-Kendall
> Gesendet: Samstag, 11. Juni 2011 18:43
> An: Rossko
> Cc: users at openlayers.org
> Betreff: Re: [OpenLayers-Users] Re: help with removing/replacing a markerafter click  event
> 
> Hi Rosco,
> 
> No, I hadn't thought of that. Any suggestions on how to update the position of the marker, maybe a loop with a new LonLat?
> 
> On Sat, Jun 11, 2011 at 5:00 AM, Rossko <rossko at culzean.clara.co.uk> wrote:
> > The issue is that each time the user clicks, another marker is placed. This
> isn't really a problem, but for
> > aesthetic purposes, I'd like to destroy or remove the first marker if the
> > clicks again
> 
> Have you considered a different approach to coding this, create one marker
> and move it around.
> 
> --
> View this message in context: http://osgeo-org.1803224.n2.nabble.com/help-with-removing-replacing-a-marker-after-click-event-tp6463400p6464936.html
> Sent from the OpenLayers Users mailing list archive at Nabble.com.
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