[worldKit-dev] Controlling annotation visibility based on zoomlevel

[Jim Baack]

Thanks, Mikel.

The first approach would probably be a good start for me. I may have some time in the next couple weeks to work on this.

As a first step, I'd like to get setup to build the source. Is MTASC an option?

Jim

On Tue, 15 Aug 2006 12:03:16 -0700 (PDT), Mikel Maron <mikel_maron at yahoo.com> wrote:
> Hi Jim
> 
> Welcome :)
> 
> There are two approaches to these problems generally .. first by manually
> specifying which annotations are visible at which zoom level, and second
> by automatically 'clustering' annotations to reduce clutter at lower zoom.
> 
> The first is easy, the second hard, and both would be great to have
> implemented in worldKit .. which can't handle either yet.
> 
> Specifying the annotation zoom level visibility would be a straightforward
> thing to implement. Though I am lacking time at the moment. This would be
> an ideal contribution.
> I can guide you, or another developer, in how to implement this.
> 
> Mikel
> 
> ----- Original Message ----
> From: Jim Baack <jhb01 at thebaacks.com>
> To: worldkit-dev at lists.brainoff.com
> Sent: Thursday, August 10, 2006 2:35:35 PM
> Subject: [worldKit-dev] Controlling annotation visibility based on zoom
> level
> 
> I'm new to worldkit so my apologies if there's a documented answer to this
> question - I didn't find one.
> 
> I'm wondering about how to control the visibility of anotations based on
> how far in/out the map is zoomed. The scenario is something like this - a
> Zoomified map of California with heavy annotations at the city level.
> Viewing the whole state, the annotations would be an ugly mess all on top
> of each other in each city. They would then separate and become useful as
> one zooms in. Is there a way to turn off the annotations at the outer zoom
> - or better, indicate that there are multiple annotations but not try to
> display every one? Thanks.
> 
> Jim
> 
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