[Mapserver-users] data/mapfile organization advice sought

[Stepan Kafka]

There are two approaches:

1. If you want to show all the countries together, you can effitiently use
tiling for them. It works also with non-rectangular tiling layer and your
data structure is suitable for it.

2. If you want show only selected country, you can change the shapepath on
the fly. Set the
...&map_shapepath=your_shapepath... in your URL.

Good luck!

Stepan Kafka
Help Service Remote Sensing
tel: +420-327514118
mailto:kafka at email.cz
http://www.bnhelp.cz

> -----Pùvodní zpráva-----
> Od: mapserver-users-admin at lists.gis.umn.edu
> [mailto:mapserver-users-admin at lists.gis.umn.edu]za uživatele Puneet
> Kishor
> Odesláno: 13. kvìtna 2003 6:09
> Komu: Mapserver
> Pøedmìt: [Mapserver-users] data/mapfile organization advice sought
>
>
> To ms data mavens -- please give me a piece of your mind.
>
> I have shapefile data of several countries, about 14 countries.
>
> Each country has 8 to 12 different layers, but they are all called the
> same. For example, all countries have a layer called "layer1",
> "layer2", and so on, while a few countries may not have "layer8" or
> "layer11," etc.
>
> If I were to draw all the countries together, they would draw
> correctly, that is, they are in the correct geographic space. However,
> their data are self-contained. That is, even though country1 and
> country2 are contiguous, drawing country1 does not bring up country2...
> they are in different folders.
>
> How do I create and work with their mapfiles?
>
> I can't really have one big mongo mapfile with all the layers of all
> the countries... it would be unworkable, and probably very inefficient.
>
> On the other hand, if I have 14 different mapfiles, they will be almost
> identical to each other except for the path to the data. If I make a
> tweak in any one mapfile (for example, change the color or visible
> scale of a layer), I will have to go and change it in 14 different
> mapfiles.
>
> Ideally I would like to have one master mapfile (like a template), and
> just substitute (on the fly) the path to the data. I guess I could do
> some preprocessing with Perl, and swap a filter keyword using regexp
> search, to create a working, valid mapfile on the fly, but I would also
> have to account for those one or two particular layers that happen to
> be absent for a given country.
>
> Please share your insight.
>
> Many tia.
>
> Puneet.
>
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>
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