[mapserver-users] roadlines issue

[Raivo Alla]

Thank you, a good point!
However, this simplyfied example is for 3 layers, actually there is
about 8 layers and some of them are showing up
a little bit later (not in that scale range). So I guess the best
would be to create separate shapes based on scale ranges, ie 1:50000
to 1:24000 the map will show 4 different types of roads from one
shapefile and from 1:24000 to 1:10000 6 different types of roads from
another shape?


Raivo

On Wed, Oct 21, 2009 at 4:52 PM, Pavel Iacovlev
<iacovlev.pavel at gmail.com> wrote:
> Yes http://mapserver.org/optimization/vector.html this is described
> correctly but it's not your case because you are NOT filtering SOME of
> the data you just read ALL the data from 2 layers. I  sort if you use
> ALL the data from that layer there is no point in splitting.
>
> On Wed, Oct 21, 2009 at 2:30 PM, Raivo Alla <snaperski at gmail.com> wrote:
>> Hey,
>>
>> thank You. I was thinking that pre-splitting large datasets would be a
>> good optimization
>> step as suggested here: http://mapserver.org/optimization/vector.html
>>
>>
>> Have to try and compare ;)
>> Raivo
>>
>> On Wed, Oct 21, 2009 at 11:45 AM, Pavel Iacovlev
>> <iacovlev.pavel at gmail.com> wrote:
>>> First if you have 2 layers for roads like highways.shp and
>>> secondary.shp (for example) if you make one shape roads.shp file with
>>> the a field "type" performance will actually improve.
>>>
>>> You can see a great example how to render street data (openstreetmap
>>> data in this case) here:
>>> http://trac.osgeo.org/mapserver/wiki/RenderingOsmData
>>>
>>> On Wed, Oct 21, 2009 at 10:16 AM, Raivo Alla <snaperski at gmail.com> wrote:
>>>> Hello,
>>>>
>>>> the problem I have right now with mapserver is how to display roads
>>>> that must be displayed from different layers in a mapfile,
>>>> but should have nice joining with each other. Problem is shown here
>>>> (red arrows):
>>>> http://picasaweb.google.com/snaperski/Ort#5394941894576868946
>>>> Desired situation with using multiple mapserver layers is marked with red ring.
>>>>
>>>> If I would use just one massive shapefile and take it as a datasource
>>>> in one layer only (instead using multiple shapefiles/layers
>>>> drawing highways, streets), then performance will suffer.
>>>>
>>>> Is there any solution to this, ie declaring DATA kayword in a CLASS
>>>> section? :) Or something so simple that I couldnt think of...
>>>>
>>>>
>>>> Humbly yours,
>>>> Raivo
>>>> _______________________________________________
>>>> mapserver-users mailing list
>>>> mapserver-users at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>>>
>>>
>>>
>>>
>>> --
>>> http://iap.md, The future is open
>>>
>>
>
>
>
> --
> http://iap.md, The future is open
>