Re: [OpenMap Users] OMGraphics with Click? Easy method?

Thank you. I implemented the MapMouseListener in my Layer. Now I still do
not get events, when I click in the map. How do I need to register the Layer in
my MapBean? At the moment I only add it to the MapBean, I do not sparatly
add it as a Listener. There seens not be a method for that and addMouseListener
does not work with MapMouseListener...

I think the solution is quite easy, I just do not see it. Also RouteMap does
not implement a MapMouseListener (at least not in v3.7) so I do not have an
example.

Kind Regards and thanks for all your help so far :-)
Karl

> Hi Karl,
>
> OMGraphics have (and had) a distance(x, y) method, where x, y are the
> MouseEvent coordinates. If the distance is 0, the coordinates are
> touching the OMGraphic on the screen.
>
> OMGraphicList has a findClosest(x, y) method that returns an OMGraphic
> touched by the x, y screen coordinate.
>
> Your layer would implement MapMouseListener to receive MouseEvents,
> which you would pass to these methods and react accordingly.
>
> - Don
>
>
> On Mar 31, 2004, at 1:02 PM, Karl Koch wrote:
>
> > Hello group,
> >
> > can somebody point to an example code how ot implement the following:
> >
> > I have a layer, which inherits from Layer and uses some OMGraphic
> > objects
> > drawn to that layer. I want to allow these points to be clickedable
> > and trigger
> > some code based on that. It should be fast and simple AND most
> > importantly
> > it sould not rely on any OpenMap code later than version 3.7. This
> > includes
> > not using OMGraphicsHandlerLayer for example :-)
> >
> > I guess I will need a kind of mouseListener implementation. However,
> > the
> > problem after getting the mouseposition is generally to decide if the
> > point was
> > touched by the click or not. This depends on the projection which for
> > example changes after every zoom or panning of the map (mouseposition
> > are screen
> > coorrdinates!).
> >
> > Does OpenMap provide an easy way allowing to identify if a OMGraphic
> > object
> > was clicked? Has somebody done exactly this and could provide the code
> > to
> > allow me a look?
> >
> > Also...
> >
> > Is there a codebase or does somebody know webpages / blogs etc. which
> > have
> > more code examples for common OpenMap implementation problems? Would
> > be good
> > fro beginners to get easier in using the API...
> >
> > Kind Regards,
> > Karl
> >
> > --
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>
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