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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>If you want to use your data in may different
clients and/or from a variety of distributed locations - you can look into
serving them with as Web Mapping Services (WMS – for raster output) or
Web Feature Services WFS (for vector output) using an engine like mapserver or
geoserver. The data can then be accessed over the web via a lot of different clients,
mapserver itself, GGIS, Udig, ArcGIS etc. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Take a look at <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Mapserver and WMS<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><a
href="http://mapserver.gis.umn.edu/docs/howto/wms_server">http://mapserver.gis.umn.edu/docs/howto/wms_server</a><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Mapserver and WFS<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><a
href="http://mapserver.gis.umn.edu/docs/howto/wfs_server">http://mapserver.gis.umn.edu/docs/howto/wfs_server</a><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>OGC </span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>web services workshop<font
color=navy><span style='color:navy'><o:p></o:p></span></font></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><a href="http://ms-ogc-workshop.maptools.org/">http://ms-ogc-workshop.maptools.org/</a><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Practical – mapfile sample snipplets…<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><a
href="http://mappinghacks.com/projects/mapscript/03_mapserver_wfs.html">http://mappinghacks.com/projects/mapscript/03_mapserver_wfs.html</a><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Karsten</span></font><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Luis Angel Monge
De La Cruz [mailto:boommonge@GMAIL.COM] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, December 03, 2007
13:48<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: Do Mapserver enables
distributed processing spatial data?</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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face="Times New Roman"><span style='font-size:12.0pt'><br>
<br>
<br>
<o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Thanks for the
suggestions. These options sound good. <br>
<br>
But the reason to have the database in more than one computer, is that really
so are available, it is unlikely that the information is integrated into a
single site, the application is for risk management, where there are layers of
information disseminated in several locations, including various sources, such
as graphics files, dbf, and postgresql. I am currently studying for a master
and my idea is to propose improvements to mapserver in this regard. ¿how?
Developing a mechanism to be included in the file. Map more than one source to
a layer, so something like a mirror, and that the choice of the server is based
not only on the availability of the source, also the bandwidth , reliability
and others.<o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
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<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Dec 3, 2007 6:49 PM, Milo van der Linden <<a
href="mailto:mlinden@zeelandnet.nl"> mlinden@zeelandnet.nl</a>> wrote:<o:p></o:p></span></font></p>
<div bgcolor="#ffffff" text="#000000">
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>No, mapserver cannot switch automatically unless you tell it to in a
php script or something.<br>
<br>
But why put these databases on two computers? Why not use a single server that
is always on and holds the database?<br>
<br>
There are many ways to achieve this, but that is basically no mapserver issue.<br>
<br>
First of all, storing gis data on a single computer always makes it stand
alone. Storing it on a server makes it available to the server and to servers
with rights on that particular server via the network.<br>
<br>
Best thing I would do if I where you:<br>
<br>
<br>
- Set up a postGIS spatial database and provide both workstations with access.
If you use qGIS or openJump as the GIS client, this is a very workable
situation.<br>
<br>
- If you want to do the same, but with a more commercial solution; consider
MapInfo with SQL-server Spatialware or ArcView with SDE.<br>
<br>
Databases have the advantage that they are designed to be multi-user where as
GIS data most of the time is not.<br>
<br>
<br>
<br>
<br>
Luis Angel Monge De La Cruz schreef: <o:p></o:p></span></font></p>
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<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt' type=cite>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Hi! <br>
<br>
This is my question. Do Mapserver enables distributed processing spatial data? <br>
<br>
Information <br>
- Two computers <br>
- Each computer has a spatial database <br>
- What happen?. If I want to obtain a spatial data from the computer # 1
through mapserver and is not available this database. Can mapserver look so
automatic that spatial data in the database from the computer computer # 2? <o:p></o:p></span></font></p>
</blockquote>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>-- <o:p></o:p></span></font></p>
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<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Milo
van der Linden <br>
skype: milovanderlinden<br>
<a href="mailto:mlinden@zeelandnet.nl" target="_blank">mlinden@zeelandnet.nl</a><br>
<a href="mailto:milovanderlinden@gmail.com" target="_blank">milovanderlinden@gmail.com</a><br>
<a href="mailto:milo@3dsite.nl" target="_blank">milo@3dsite.nl</a><br>
<a href="http://www.3dsite.nl" target="_blank">http://www.3dsite.nl</a><o:p></o:p></span></font></p>
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<p><font size=3 face="Times New Roman"><span lang=NL style='font-size:12.0pt'>De
informatie in dit bericht reflecteert mijn persoonlijke mening en niet die
van een bedrijf of instantie. Aan de informatie kunnen geen rechten worden
ontleend. Indien dit bericht onderdeel is van een forum, mailing-list of
community dan gelden automatisch de bij het betreffende medium behorende
voorwaarden.</span><span lang=NL> </span></font><span lang=EN>The information
in this message reflects my personal opinion and not that of a company or
public body. All rights reserved.If this message is contained in a
mailing-list or community, the rights on the medium are automatically
adapted.</span><o:p></o:p></p>
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