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first calls unselect on the selectfeaturecontrol. However, this fails if the feature in question is no longer in the map -- for example, if you zoom in or otherwise change positions. (The selected feature no longer exists, so you call close on a feature which no longer has a layer object.) This change to the examples by Jorix fixes this behavior in the example. Note that many people use similar functionalities in their code, so this likely means that what we *should* do is armor unselect() against being called with a feature with a null layer, but that involves a longer discussion -- do we still fire onUnselect? Do we still fire the unselect events? is there other cleanup we need to do? etc. -- so this is changing the example to demonstrate one way to armor application code against the problem. Thanks to jorix for the suggestion on the example fix. (See #3046) (See #2515) git-svn-id: http://svn.openlayers.org/trunk/openlayers@11707 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
OpenLayers
-=-=-=-=-=-
Copyright (c) 2005-2011 OpenLayers Contributors. See authors.txt for
more details.
OpenLayers is a JavaScript library for building map applications
on the web. OpenLayers is made available under a BSD-license.
Please see license.txt in this distribution for more details.
------------------
Getting OpenLayers
------------------
OpenLayers lives at http://www.openlayers.org/.
You can get OpenLayers from
http://trac.openlayers.org/wiki/HowToDownload.
---------------------
Installing OpenLayers
---------------------
You can use OpenLayers as-is by copying build/OpenLayers.js and the
entire theme/ and img/ directories up to your webserver, putting them
in the same directory. The files can be in subdirectories on your website,
or right in the root of the site, as in these examples.
To include the OpenLayers library in your web page from the root of the site, use:
<script type="text/javascript" src="/OpenLayers.js" />
As an example, using bash (with the release files in ~/openlayers ):
$ cd /var/www/html
$ cp ~/openlayers/OpenLayers.js ./
$ cp -R ~/openlayers/theme ./
$ cp -R ~/openlayers/img ./
If you want to use the multiple-file version of OpenLayers (for, say,
debugging or development purposes), copy the lib/ directory up to your
webserver in the same directory you put the img/ folder. Then add
the following to your web page instead:
<script type="text/javascript" src="/lib/OpenLayers.js" />
As an example, using bash (with the release files in ~/openlayers ):
$ cd /var/www/html
$ cp -R ~/openlayers/lib ./
$ cp -R ~/openlayers/theme ./
$ cp -R ~/openlayers/img ./
------------------------------------
Using OpenLayers in Your Own Website
------------------------------------
The examples/ directory is full of useful examples.
Documentation is available at http://trac.openlayers.org/wiki/Documentation.
You can generate the API documentation with http://www.naturaldocs.org/:
As an example, using bash (with the release files in ~/openlayers ):
$ cd ~/openlayers/
$ /path/to/NaturalDocs -i lib/ -o HTML doc/ -p doc_config/ -s Default OL
Information on changes in the API is available in news.txt.
--------------------------
Contributing to OpenLayers
--------------------------
Please join the email lists at http://openlayers.org/mailman/listinfo
Patches are welcome!
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