Monthly Meeting - This Wednesday Nov 18th 6pm

[Aaron Racicot]

Hello CUGOSians,

 

So I am sending out our reminder (two days before the meeting mind you!) that we will be having our monthly meeting this Wednesday at 6pm.  Walter has confirmed that he is planning to be at LizardTech (mpg and others are at a conference) but there is a slight chance he will not be able to show due to family reasons.  If that is the case we will just make the meeting more social and head to the pub for our meeting.  Again, that is just a small possibility and we are moving forward assuming the room is available.  Thanks Walter for volunteering to host!

 

Roger A. has offered to show some GRASS development that he is working on.  I am going to try to put together something around getting GRASS to serve data to the web.  Dane will be showing off some new Quantumnik developments and any other new wizardry he is up to.  Should be a great meeting.  Karsten, you want to show some new features of gvSIG 1.9?  Plenty of time to catch up with discussion of what is new and interesting in the OS GIS world.

 

When – Wednesday 11/18/09 – 6-8pm (pub time to follow)

Where – LizardTech HQ [1]

 

Please come out and support the local Open Source GIS community by participating in this monthly meeting.  Looking forward to seeing all of you…

 

Oh I almost forgot, it is GIS Day Wednesday… what better way to celebrate than coming to geek out on some Open Source GIS!

 

Aaron

 

[1] http://www.lizardtech.com/company/contact.php

1008 Western Ave

http://maps.google.com/maps?q=1008+Western+Ave+Seattle,+WA+98104

 

--------------------------

Aaron Racicot

Z-Pulley Inc.

 

[AJ]

Ok, I'll follow Aaron's new moniker for us...

CUGOSians,

In honor of GIS Day, Pierce County is releasing a new online app that
uses OpenLayers, PostgreSQL, and other goodies. I don't know if I'll
be able to attend tomorrow's meeting, but check out our new site:

http://www.co.pierce.wa.us/gis/

Under Featured Items, take a look Where Does The Water Go?

Oh, and we now have CUGOS on our website under our list of
Professional Associations & Users Groups.

Have fun,
Angie

[Emilio Mayorga]

Angie,

Very cool! The tracing is a tad slow, but no big deal. Personally, I'd
like to hear more about what tools you're using to accomplish the
tracing itself (eg, PostGIS routing? Standard gridded flow-direction
tracing in GRASS?).

Thanks. Cheers,

-Emilio

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[AJ]

There is a performance hit, which was even worse when we played with
pg_routing. So, for now, we are using some logic in Java to trace out
to pre-computed traces along primary routes. The pre-computed flows
are stored in PostgreSQL as a table for easy access.

I plan to investigate pg_routing further to see if we can correct our
original performance issues and handle more complex terrain flow
tracing in the future.

-A