[OpenLayers-Users] VectorLayer disappears at zoom 17 (and lesser).

BrainDrain paulborodaev at gmail.com
Fri Sep 12 03:49:40 EDT 2008


Thank you very much!
patch works great!
Could we expect that it will be included in 2.7 final?


Andreas Hocevar-3 wrote:
> 
> BrainDrain and Salvaro,
> 
> I created a ticket for this:
> 
> http://trac.openlayers.org/ticket/1732
> 
> Can you please apply the patch in this ticket and see if it resolves
> the issue? Or just replace lib/OpenLayers/Renderer/VML.js with the
> contents of the attached zip file?
> 
> Thanks!
> 
> On Thu, Sep 11, 2008 at 8:44 AM, BrainDrain <paulborodaev at gmail.com>
> wrote:
>>
>> problem still exists in 2.7-rc1
>> vectors disappears
>> my solutions to avoid integer overflow in vml.js
>> input proj
>> "+proj=tmerc +lat_0=0 +lon_0=45 +k=1.000000 +x_0=0 +y_0=0 +ellps=krass
>> +towgs84=23.92,-141.27,-80.9,0,0,0,0 +units=mm +no_defs"),
>> need this output proj:
>> "+proj=tmerc +lat_0=48.70975 +lon_0=44.51205 +k=1.000000 +x_0=0 +y_0=0
>> +ellps=krass +towgs84=23.92,-141.27,-80.9,0,0,0,0 +units=m +no_defs"
>> to fix problem I use output proj with offsets:
>> "+proj=tmerc +lat_0=48.70975 +lon_0=44.51205 +k=1.000000 +x_0=-20000
>> +y_0=5000000 +ellps=krass +towgs84=23.92,-141.27,-80.9,0,0,0,0 +units=m
>> +no_defs"
>> (as you can see, in my case: x-offset =-20000  y-offset=5000000)
>> maybe It's possible to use dd units (lonlat proj) but im my case
>> reprojection from mm(m) to dd produces
>> unacceptable features geometry
>>
>>
>>
>> euzuro wrote:
>>>
>>> Yes, please give the 2.7-rc1 a try... this should be fixed.
>>>
>>> You can get it here:
>>> http://openlayers.org/api/2.7-rc1/OpenLayers.js
>>>
>>> ...the final release should be out in a couple of weeks.
>>> Erik
>>>
>>>
>>> On Wed, Sep 10, 2008 at 8:33 AM, Christopher Schmidt
>>> <crschmidt at metacarta.com> wrote:
>>>> On Wed, Sep 10, 2008 at 06:32:14AM -0700, BrainDrain wrote:
>>>>>
>>>>> I think this can be related to this
>>>>> http://www.nabble.com/integer-overflow-while-drawing-vectors%2C-help%21-td19085568.html
>>>>> I use vector layer for measurement and my vectors disappears starting
>>>>> from
>>>>> some zoom scale (depends of how many zoom levels you have).
>>>>> But I fix this only by bring some 'false' offset parameters in my
>>>>> output
>>>>> projection((
>>>>
>>>> Try 2.7-rc1 and see if it fixes the problem.
>>>>
>>>> Regards,
>>>> --
>>>> Christopher Schmidt
>>>> MetaCarta
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>>
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>>
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