[OpenLayers-Users] RE: Google Terrian map does not align with geometry

[Nicholas Efremov-Kendall]

rather, the layers can support different zoom levels, maybe there's a
conflict there.

On Wed, Jun 15, 2011 at 4:18 PM, Nicholas Efremov-Kendall <
n.e.kendall at gmail.com> wrote:

> Hi JK,
>
> The googles layers actually have different zoom levels, sometimes going to
> hybrid goes to 21, physical goes to 22 and such. Look up the maxzoom for the
> terrain layer, that might fix your problem.
>
> On Wed, Jun 15, 2011 at 4:05 PM, JK Chen <jk.chen at sdl.usu.edu> wrote:
>
>>
>>
>> These misalignments happen at zoom levels greater than or equal to 16. As
>> you might know, Google  Terrain provides 20 zoom levels. Apparently this is
>> a bug within Openlayers.
>>
>> My current “workaround” is to set the numZoomlevels to 16 for Google
>> Terrain map.
>>
>>
>>
>> Thanks.
>>
>>
>>
>> JK
>>
>> *From:* openlayers-users-bounces at lists.osgeo.org [mailto:
>> openlayers-users-bounces at lists.osgeo.org] *On Behalf Of *JK Chen
>> *Sent:* Wednesday, June 15, 2011 1:52 PM
>> *To:* openlayers-users at lists.osgeo.org
>> *Subject:* [OpenLayers-Users] Google Terrian map does not align with
>> geometry
>>
>>
>>
>> Hi,
>>
>>
>>
>> My application draws many geometries (basically, polygons, each
>> representing captured aerial images). All of my geometries align correctly
>> with Google Street, Satellite, Hybrid maps, but not correctly with Google
>> Terrian map.
>>
>>
>>
>> While in Google Terrian map, when I zoom in to say zoom levels more than
>> 10, the mis-alignment starts to show up, and another issue also starts
>> showing up, the rectangle of my geometry becomes movable. All of these are
>> simply wrong. These will render the application unreliable which means
>> useless for our users.
>>
>>
>>
>> Can anyone share some thoughts about these behaviors? How to fix them?
>>
>>
>>
>> How Reliable is OpenLayers? I’m seeing many un-reliability and
>> inconsistence.
>>
>>
>>
>> Thanks.
>>
>>
>>
>> JK
>>
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>>
>>
>
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