I am currently evaluating MapBuilder and geoserver for an upcoming project
I am working on.
I need the ability to add and delete map layers dynamically during
runtime. At a really high level, I envision the flow something like the
following:
Add Layer:
1. client side: a user clicks a button to plot a feature on the
map
2. client side: the onclick event is captured, and an AJAX call to
geoserver is made to retrieve the feature
3. client side: dynamically via Javascript, the feature is added
to the map and the legend is updated
Remove Layer:
1. client side: a user clicks a button to remove a feature form
the map
2. client side: the onclick event is captured, and the feature is
programmatically removed from the map and the legend is updated.
Questions:
* For the AJAX call, I assume I use a URL like the following where
type name is the name of the feature I want to retrieve.
http://localhost/geoserver/wfs?request=getfeature&service=wfs&version=1.0.0&typename=WorldCountries
* Once I have the returned XML how do I add it to the map? Do I
use MapPane.addLayer and MapPane.deleteLayer? If so, what are the two
parameters and how do I get them?
* If I have the legend widget hooked up, does it listen for
add/delete layer events and automatically update or do I need to do this
myself?
* Or, I am so far off the mark I don't even warrant a reply? :-)
Any code snippets or a tutorial in this area to get me going would be
great.
TIA,
-- kent
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