Hello everyone,

First of, thanks for reading and sorry if there is tooo much or to
little information here.

I am using the following utilities in my maps app (ASP.NET 3.5)
* http://gmaps-utility-library-dev.googlecode.com/svn/tags/labeledmarker/
* http://gmaps-utility-library-dev.googlecode.com/svn/tags/markermanager/

Since MarkerManager does not support polygons, I have, after
searching, used the following code to make it work with polygons.

GPolygon.prototype.getPoint = function() {
    if (!this.Centre) this.Centre = this.getBounds().getCenter();
    return this.Centre;
};

Polygon type: UK postcode boundary, around 25 at a time with an
average of 100 points plus a LabeledMarker for each of them.

Leaving aside the inaccuracy based on using polygon's center point, I
have a couple of problems.

1. MarkerManager Problem: Polygons disappearing when using the map's
zoom controls -

Description - After a user action the polygons are plotted
successfully. If the user either zooms in or zooms out one step then
most of the time the polygons disappear. the LabeledMarker stay.

Observations:
>Does not happen all the time
>If the user zooms in or out another level the polygons reappear. They seem to 
>disappear/appear with each zoom step.
>If they are currently disappeared and the user pans the map away from them and 
>then pans back from a sufficient distance, they reappear and work properly
>I show a small infowindow on polygon click. it still works when the polygons 
>are invisible. I.e they behave as if they where there


2  LabeledMarker Problem: The markers seem to duplicate sometimes when
zooming in/out and stay fixed in the map window. i.e not moving when
we zoom in/out but they move with the map if we pan it. The copies are
not clickable but the one that is at the original position keeps
working ok.


I think :
>Using firebug I have tried to step thru the execution. it Appears that marker 
>manager removes all markers(inc polygons,LabeledMarkers) when zoom is changed 
>and then adds them again. The adding part seems to fall right when the map is 
>performing the zoom operation and seems to mess up displaying of the 
>polys/labels

I dont have a live version running at present and am unable to show
the site to you. But I think the problem lies with using GPolygon and
LabeledMarker with MarkerManager

Thank you for you time. Please help if you can.



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