[Opensim-dev] worldsize map scaling

[Michael Cerquoni]

I think technically with V2 viewers the map limit is 2048, separate from the
4096 teleporting limit.

On Wed, Jun 22, 2011 at 3:03 PM, Justin Clark-Casey <
jjustincc at googlemail.com> wrote:

> If by 64k you mean 64,000 then the maximum range you can teleport without
> graphical disruption is 4096 regions.  To prevent faulty teleports, OpenSim
> prevents teleports beyond this range, though the error message is not very
> good for technical reasons.  Hopefully this will be improved soon.
>
> I know this check occurs on HG but I'm not sure exactly what happens on a
> non-hg configuration.  However, I'm guessing this is the same kind of
> problem.
>
>
> On 21/06/11 06:39, Jeroen van Veen wrote:
>
>> Hey Justin,
>>
>> When i try to tp to a region with one axis>  64k, the imprudence(1.4)
>> viewer
>> returns:
>> "Could not teleport. The region you tried to teleport to doesn't exist
>> anymore".
>>
>> Latest snowglobe has the same issue. There is no feedback from the
>> simulator
>> or robust service besides the search-operation for the region in the
>> map(which
>> is ok). It's not that i want to run a large amount of regions, rather i
>> would
>> like to combine two map-layers; single os-region tiles with openstreetmap-
>> tiles, based on their shared grid locations at zoomlevel 17 or 18, which
>> require a gridaxis of 2^17. Like if i wanted to create a region on top of
>> some
>> location in the netherlands, then it would require a grid-location which
>> is
>> larger than 64k at each axis.
>>
>> The tile-renderer thats part of hwios now, works for quite some time
>> already.
>> It was tested succesfully on os-grid tiles some time ago. It works in
>> openlayers, kde marble and in viewer 2(using the mapservice uri, but
>> without
>> the osm-layer), but if one can't tp to the regions>  64k in-world, then it
>> doesnt make much sense to try to mashup both osm and os.
>>
>> I tried to avoid the error in the past, by introducing mapping offsets,
>> but
>> that would complicate things alot. The use of this 1-1 mapping approach is
>> that you always know the rl osm tile thats linked to a region, so you can
>> for
>> instance get the osm tile on a 256x256 prim and show where rl roads and
>> buildings are supposed to be in-world. If this feature would work, it
>> would be
>> possible to introduce a mapping client like marble inside of a viewer, or
>> use
>> geodjango on top of hwios for AR-related stuff.
>>
>> kind regards,
>>
>> Jeroen
>>
>> On Tuesday 21 June 2011 01:09:52 Justin Clark-Casey wrote:
>>
>>> Hi Jeroen.  You don't say what happens when you try running a grid with
>>> 132
>>> x 132 regions.  I'm guessing the main map doesn't display properly.
>>>
>>> Running that many regions on a single simulator would be a problem in
>>> itself.  You may also want to try viewer 2 with the very latest code
>>> since
>>> Diva recently implemented the viewer 2 map approach here and it works
>>> differently from viewer 1.
>>>
>>> On 16/06/11 08:10, Jeroen van Veen wrote:
>>>
>>>> Hello,
>>>>
>>>> I've been wondering for a long time what prevented the use of really
>>>> large grid locations. My use-case is using the opensim map as an overlay
>>>> on openstreetmap with 17 zoomlevels, which is a 2^17(131.072x131.072)
>>>> grid-sized map. I've tried in the past, and it looks to me that it's a
>>>> viewer issue? Any idea if this is going to be an easy fix on the viewer
>>>> side, or whether opensim needs some changes as well?
>>>>
>>>> kind regards,
>>>>
>>>> Jeroen
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>>
>
> --
> Justin Clark-Casey (justincc)
> http://justincc.org/blog
> http://twitter.com/justincc
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-- 
Michael Emory Cerquoni - Nebadon Izumi @ http://osgrid.org
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