Hi Helmut,
try the following (without any guarantee):
//iterate over the features of your layer, select some of them by
attribute and build an envelope including all the geometries of the
features to select
Layer lyr = context.getLayerManager().getLayer("yourLayer");
FeatureCollectionWrapper fcw = lyr.getFeatureCollectionWrapper();
List<Feature> features = fcw.getFeatures();
Envelope envToZoomTo=new Envelope();
for (Feature feature : features) {
if
(feature.getString("YourAttribute").equalsIgnoreCase("theValueTheFeaturesToSelectShouldHave"))
{
context.getLayerViewPanel().getSelectionManager().getFeatureSelection().selectItems(lyr,
feature);
envToZoomTo.expandToInclude(feature.getGeometry().getEnvelopeInternal());
}
}
//zoom to the envelope (with a factor which determines the
zooming-level)
context.getLayerViewPanel().getViewport().zoom(EnvelopeUtil.bufferByFraction(envToZoomTo,0.5));
for changing the fill-color you should add a temporary legend-field in
the attribute-table of your layer, fill it with a special value for the
features to select and set the style
of the layer respectively.
For working with styles look here:
http://sourceforge.net/mailarchive/forum.php?thread_name=4d70f030909180629s2fa48105kb30686666f87aeaf%40mail.gmail.com&forum_name=jump-pilot-devel
Helmut Seidel M.A. schrieb:
Hello again,
thank you for your replies. Maybe I should have stated that I'm working
on a plugin, not an external application.
Thanks again
Helmut
Am 07.07.2010 08:05, schrieb Matthias Scholz:
Hi Sunburned Surveyor,
at the moment I use a textfile, because this was the simplest way and
there are no needs to change anything in the Archikart Software. I've
reused a interface to an other GIS.
Matthias
Matthias,
I'm curious what method you are using to communicate with OpenJUMP.
Can you tell me?
The Sunburned Surveyor
On Tue, Jul 6, 2010 at 12:04 PM, Matthias Scholz<m...@jammerhund.de> wrote:
Hi Helmut,
I've build a plugin for interfacing OJ with an external application
called "Archikart" (www.archikart.de), for use at my employer. You can
select a geometry in OJ an show the metadata in Archikart and the
reverse way, show a geometry in OJ from Archikart. The plugin searches
on all layers for the feature, selects the features and zoom to the
selected features.
At the moment we use this plugin for production, but it is not yet ready
for publishing. I plan the public release for the end of the year. If
you are interested, i can mail you the Netbeans project. If you work on
a similar project, it would be nice if we can build one common plugin
for interfacing OJ from external applications and vice versa.
Matthias
Hello everybody,
thanks to your help I was able to start my project. So far I am able to
extract some attributes from the selected elements look them up in a
mysql-database and display the results in openJump. This was possible
for me through the HowTo in your developers docs section.
Now I need the other way round, i.e. look up some data in my
mysql-database (which is the easy part), find the corosponding
attributes in the displayed layer, select the feature (best by changeing
the background-(fill-)color) and zoom to it. I'm not sure where to find
the necessary methods in openJump - has anybody got a short example?
Thanks and regards
Helmut
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