[OpenLayers-Users] How to add a an overlay on top of a map?

[Jatin Ambasana]

Sorry I forgot to attach the file that I mentioned in my previous post....
I have named it as draw-feature2.html




Jatin Ambasana wrote:
> 
> hey newbie...
> 
> For drawing vector features.....
> you can refer to
> http://openlayers.org/dev/examples/draw-feature.html
> http://openlayers.org/dev/examples/drag-feature.html
> 
> To achieve the functionality you need you can follow any of 2 methods
> mentioned below:
> 
> 1)Change the following code in draw-feature.html:
> 
> // This lets you call a function when a feature is inserted on vector
> layer
> var lineLayer = new OpenLayers.Layer.Vector("Line Layer",{onFeatureInsert:
> featureIsAdded});
> 
> //Add this funtion in your code
> function featureIsAdded(feature){
> 	alert("Feature with id: "+feature.id+", has following Geometry:
> "+feature.geometry);
> }
> 
> I feel that would be sufficient for you......
> 
> 2)There is also another nice example but some what different that you can
> see from:
>  http://openlayers.org/pipermail/users/2007-June/001998.html
> http://openlayers.org/pipermail/users/2007-June/001998.html 
> 
> I have modified that code and I am attaching that with this post.... But
> it has few problems.... It does show you the co-oridnates of all points of
> the line drawn but it does not add the line to the Line Layer...
> 
> I don't understand why it works in the previous standard OpenLayers
> example and not in the second example that I downloaded from above
> link......
> 
> If someone has solution for that then that would nice of him/her.....
> 
> 
> newbie wrote:
>> 
>> Dear All,
>>            I am using geoserver and managed to put a sample shapefile and
>> able to view my simple map well. The problem now is that on top that map
>> I want to add a layer where I can like draw polygon and capture the
>> coordinates accordingly. How can I do this ? Thanks.
>> 
> 
> 
http://n2.nabble.com/file/n2222990/draw-feature2.html draw-feature2.html 
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