[geotk] painting radar range lines

[sorel johann]

Hello,

The best place to start with is the Demo module in geotoolkit pending.

http://hg.geotoolkit.org/geotoolkit-pending/file/6b48111b47d5/demos/geotk-demo-samples/src/main/java/org/geotoolkit/pending/demo

You will find there a large set of code samples many of them documented 
to show how to manipulate datas, rendering engine, clients, processes, 
symbology ...
For your objective the closest demos are those in the 
rendering/customgraphic and rendering/customgraphicbuilder package but I 
suggest you explore all demos since they will give you a good view of 
what geotoolkit can do.
(still there are plenty of others things that can be done which are not 
in the demos)


johann



Le 02/07/2011 11:35, Thys Meintjes a écrit :
> Hi all,
>
> I need some general guidance on best practices and technical matters. 
> I'm very new to GIS in general so please pardon my  ignorance.
>
> I want to paint a set of radar range rings centered on a position. A 
> radar sector scan is pained on top of the range rings and is 
> continually updated
> as the radar scans, like a rotating pie slice - I'm sure you've seen 
> this before...
> Targets are painted as the scan sector passes over them and then fades 
> out... Like a normal radar would.
>
> I would like to do this on top of a JMap2D within the geotk/puzzle-gis 
> framework (The application will be Netbeans platform based) to get all the
> benefits of a real GIS framework.
>
> My experiments up till now has many of these in place on a home-brew 
> canvas where I do my own painting. I guess I can re-state the question
> as how do I integrate my own custom painting with JMap2D without 
> running into performance and threading issues ? And what of the 
> GeoAPI's "features"
> data types can be used to represent the targets as GIS objects ?
>
> Thanks and regards.
>
> -- 
> Thys Meintjes
>
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