[GeoNetwork-users] Near real time WMS data using geoserver

theresia_freska · December 8, 2009, 2:50pm

Hi all,

I want to set up a WMS which is able to serve near real time data. I've been searching through various sites and couldn't find any hint. Is it possible to do this using Geoserver? Because all this time, I was just uploading geotiff file and publishing it as a service. And that's static data. Any input is highly appreciated.

Thank you.

Brent_Wood · December 8, 2009, 3:32pm

Hi Theresia,

I'm not sure the geonetwork list is the best place to ask this, the geoserver & mapserver lists might be more relevant, but here is one possibility.

I have approached this sort of issue (using Mapserver rather than Geoserver - but it should apply much the same).

In my context the example data are vessel tracks & positions.

I have a WMS/WFS server set up with UMN mapserver. This serves data extracted from a PostGIS database via an SQL query which defines the layer content.

The incoming position data is loaded automatically into PostGIS (both as a set of point data and a current day trackline), so any query returns whatever data is current/available. A query/view on the table of locations returns the latest point for each vessel, so I have a virtual table of current positions.

If the client refreshes the map every 30 seconds or so, and just views the current_positions layer, they effectively have a vessel tracking application. Or they can add the daily tracklines for a history going back however many days they want.

I'm not sure how well this approach fits your needs, but it works well for mine

HTH,

Brent Wood

--- On Wed, 12/9/09, theresia freska <frezzz_54@anonymised.com> wrote:

From: theresia freska <frezzz_54@anonymised.com>
Subject: [GeoNetwork-users] Near real time WMS data using geoserver
To: geonetwork-users@lists.sourceforge.net
Date: Wednesday, December 9, 2009, 3:50 AM
Hi all,

I want to set up a WMS which is able to serve near real
time data. I've been searching through various sites and
couldn't find any hint. Is it possible to do this using
Geoserver? Because all this time, I was just uploading
geotiff file and publishing it as a service. And that's
static data. Any input is highly appreciated.

Thank you.

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theresia_freska · December 8, 2009, 6:55pm

Hallo,

Thank you for your reply. I'm sorry I forgot to mention that I'm using geoserver that is included in geonetwork.

So, basically I'm using the default package of geonetwork+geoserver+intermap to set up a mini SDI application that will provide WMS/WCS which is able to serve near real time raster data. I will get the data from a ground receiving station, most likely in geotiff format. This raster data will also be stored in a raster database called Rasdaman. And here's the same question again. How can I set up this kind of WMS?