[OpenLayers-Users] maximum ZoomLevel for google maps

[Rodolfo Moreno]

Hi Arnd,
I have tested your patch but it doesn't work. I have tried to zoom in for
Wuppertal as well and I only have gotten the 19 zoomlevel (I am using 2.7
openlayers version).

In debug mode I can see that the constants RESOLUTIONS and MAX_ZOOM_LEVEL
for google layers have changed after of the patch, but these changes doesn't
take effect.

Regards,


Arnd Wippermann wrote:
> 
> Perhaps this helps:
> http://www.nabble.com/How-to-change-style-'select'--in-OL-2.6-td16515740.htm
> l
>  
> ... but is there a reason that OL sticks to only 19 
> zoomlevels for the Google layer? Google have 22 zoomlevels and especially 
> for where I come from (Wuppertal), it's possible to get images for 
> zoomlevels > 19. I use this patch to get all levels: 
> 
> OpenLayers.Layer.Google.prototype.RESOLUTIONS = 
> [1.40625,0.703125,0.3515625,0.17578125,0.087890625,0.0439453125,0.0219726562
> 
> 5,0.010986328125,0.0054931640625,0.00274658203125,0.001373291015625,0.000686
> 
> 6455078125,0.00034332275390625,0.000171661376953125,0.0000858306884765625,0.
> 
> 0000429153442382812,0.0000214576721191406,0.0000107288360595703,0.0000053644
> 
> 1802978516,0.00000268220901489258,0.00000134110450744629,6.70552253723145e-7
> 
> ,3.35276126861572e-7]; 
> OpenLayers.Layer.Google.prototype.MAX_ZOOM_LEVEL = 22; 
> 
> 
> Mit freundlichen Grüssen 
> 
> Arnd Wippermann 
> 
> 
> 
> -----Ursprüngliche Nachricht-----
> Von: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org] Im
> Auftrag von Rodolfo Moreno
> Gesendet: Dienstag, 25. November 2008 16:49
> An: users at openlayers.org
> Betreff: Re: [OpenLayers-Users] maximum ZoomLevel for google maps
> 
> 
> I Reena Alexandre is right. I have tested your suggestion and it has not
> fixed my issue.
> maybe to be a constraint of google maps?
> 
> 
> Alexandre Dube wrote:
>> 
>> Google layers already have fixed resolutions, so using fixed scales 
>> will not help in this case.
>> 
>> Alexandre
>> 
>> S.Reena wrote:
>>> Hi Rodolfo,
>>>
>>> I am not using google maps as base , I have made my own base 
>>> layer..but for your case playing with the scale would serve the 
>>> purpose
>>>
>>> I did like this ,
>>>
>>>   map = new OpenLayers.Map('map',{ scales:
>>>
> [5000000,2000000,1000000,500000,200000,100000,50000,20000,10000,5000,2000,10
> 00],numZoomLevels:
>>> 12, maxResolution: "auto",projection: "EPSG:4326", controls: [] });
>>>
>>>
>>> Reena
>>>
>>>
>>> Rodolfo Moreno wrote:
>>>   
>>>> Hi all,
>>>> I am using openlayers for showing my mapguide layers and google maps 
>>>> as base layer.
>>>> my problem is that the "zoom in" this limited until a certain scale. 
>>>> In my case the maximum scale that I can achieve is 1:18k (this is 
>>>> what the map shows).
>>>> I did a comparison with the own google maps GUI
>>>> (http://maps.google.com/)
>>>> and I have seen that to my sample application lack it 4 zoom levels 
>>>> in order to achieve the maximum scale.
>>>> So I was reviewing the openlayers documentation and I found this 
>>>> link(http://trac.openlayers.org/wiki/SettingZoomLevels).
>>>>
>>>> I did some change in my code like this: 
>>>>
>>>> var satellite = new OpenLayers.Layer.Google( 
>>>>                 "Google Satellite" , {type: G_NORMAL_MAP},  {
>>>> minZoomLevel:
>>>> 0, maxZoomLevel: 30} 
>>>>             );
>>>>
>>>> but even it doesn't work as I want. 
>>>>
>>>> I appreciate all idea
>>>>
>>>> Regards
>>>>
>>>> -----
>>>> Rodolfo Moreno
>>>> CivilEng
>>>>
>>>> --
>>>> View this message in context:
>>>> http://n2.nabble.com/maximum-ZoomLevel-for-google-maps-tp1574304p157
>>>> 4304.html Sent from the OpenLayers Users mailing list archive at 
>>>> Nabble.com.
>>>>
>>>> _______________________________________________
>>>> Users mailing list
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>>>> http://openlayers.org/mailman/listinfo/users
>>>>
>>>>
>>>>     
>>>
>>>   
>> 
>> 
>> --
>> Alexandre Dubé
>> Mapgears
>> www.mapgears.com
>> 
>> _______________________________________________
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>> http://openlayers.org/mailman/listinfo/users
>> 
>> 
> 
> 
> -----
> Rodolfo Moreno
> CivilEng
> 
> --
> View this message in context:
> http://n2.nabble.com/maximum-ZoomLevel-for-google-maps-tp1574304p1576820.htm
> l
> Sent from the OpenLayers Users mailing list archive at Nabble.com.
> 
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> 
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> 
> 


-----
Rodolfo Moreno
CivilEng

-- 
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