[OpenLayers-Dev] SVG viewbox problem with minScale

[Eric Lemoine]

I have a patch that i'd like you to test. I cant post it right now but
will do as soon as i can. Cheers. Eric

2008/7/29, Eric Lemoine <eric.c2c at gmail.com>:
> Just checked: zoomChanged is set to true in moveTo when coming from
> setVisibility(true), so the fix describes in my previous email might
> just work. Eric
>
> 2008/7/29, Eric Lemoine <eric.c2c at gmail.com>:
>> Hi. Still i'm not convinced the problem is related to the pixel limit.
>> When the layer is back to in range i tend to think that this.left and
>> this.top should be reset to zero, which isn't the case today because
>> from the renderer perspective it's like resolution has never changed.
>> One way to solve this would be to have the layer pass the renderer the
>> zoomChanged boolean value when calling setExtent, and have the
>> renderer rely on that value to know whether resolution's changed.
>> Although this will probably work in the "going back in range"
>> situation, i'm not sure it'll work in the "going back to visible"
>> situation, which must also be dealt with. Unless setVisibility(true)
>> does pass zoomChanged=true to the layer moveTo call. This to be check,
>> which i cant do at the moment. Regards. Eric
>>
>> 2008/7/28, Alexandre Dube <adube at mapgears.com>:
>>> Hi Eric,
>>>
>>>   The location is correct.  It is ok to have a 15000px limit and that
>>> works perfectly.
>>>
>>>   To fix the bug, I think when the code checks the resolution, if it's
>>> the same than before, it should also check the location of one of our
>>> feature position...  If it's near our 15000px limit ( let's say more
>>> than 14000px for example ) it should change the left-top value of the
>>> renderer.
>>>
>>>   That way, even if we zoom out or pan, if we get out of our 15000px
>>> limit, features will continue to be displayed.
>>>
>>>   What do you think ?
>>>
>>> Alexandre
>>>
>>> Eric Lemoine wrote:
>>>> On Mon, Jul 28, 2008 at 3:35 PM, Alexandre Dube <adube at mapgears.com>
>>>> wrote:
>>>>
>>>>
>>>> So it seems to me that the problem doesn't really related to the 15000
>>>> px limit. In this scenario:
>>>>
>>>> - go out of range
>>>> - pan and zoom without going beyond the 15000 px limit
>>>> - go in range (the features should be visible as the limit was crossed)
>>>>
>>>> is the location of features correct?
>>>>
>>>> --
>>>> Eric
>>>>
>>>
>>>
>>> --
>>> Alexandre Dubé
>>> Mapgears
>>> www.mapgears.com
>>>
>>>
>>
>