Is there an easy way to add that to the Mouse zoom (class) feature already
in OpenMap?
> -----Original Message-----
> From: owner-openmap-users_at_bbn.com [mailto:owner-openmap-users_at_bbn.com]
> On Behalf Of Artemus S. Harper
> Sent: Wednesday, November 10, 2004 10:33 AM
> To: laura.paterson_at_generaldynamics.uk.com
> Cc: openmap-users_at_bbn.com
> Subject: Re: [OpenMap Users] Creating a brighter area of map
>
> You can do this by setting the composite of the graphics object
> (setComposite) to an AlphaComposite. Then simply paint a white
> rectangle
> onto the area you wish to highlight.
> e.g.
> Graphics2D g = ...;
> Composite savedComposite = g.getComposite();
> g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,.5f);
> g.fillRect(x,y,width,height);
> g.setComposite(savedComposite);
> >>> Laura Paterson <laura.paterson_at_generaldynamics.uk.com> 11/10/04
> 6:30
> AM >>>
> Hi,
>
> I think this is possibly more of a Java question than a map question,
> but
> hope that someone in this forum may know of a solution!
>
> Part of my map application allows a user to draw an area of interest
> onto
> the map. I used to indicate the boundary of this area by colouring it
> transparently, however, I received complaints that this interfered with
> using the map too much.
>
> After trying a few prototypes, I have found the effect I want to
> achieve
> -
> to brighten the selected area. (See the attached screenshot mock,
> which
> I
> made up using the Brighten option in Paint Shop Pro 7.)
>
> The problem is, I have no idea at the moment how to go about creating
> this
> effect in OpenMap/Java...
>
> If anyone has any suggestions I will be very grateful!
>
> Cheers,
> Laura
>
>
> General Dynamics United Kingdom Limited
> Registered in England and Wales No. 1911653
> Registered Office: 100 New Bridge Street, London, EC4V 6JA
>
>
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Received on Wed Nov 10 2004 - 12:45:20 EST