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Tuesday, March 29. 2011

Chaining Web Services

In a previous post I alluded to using OSM as a texture map in a perspective rendering. I created the tiles through a mapserver-based WMS serving up the OSM data through postgresql.

Years ago I wrote an "elevation server" that - among other things - generates hillshade with elevation colors based on custom color lookup tables. I've been playing around chaining these two services to produce distinctive looking images. Here are a few examples.

The "desert" motif (click on image for high res version):

The "winter" motif (click on image for high res version):

...And something for people who like really saturated colors (click on image for high res version):

The elevation server has great potential for generating custom tiles for web mapping apps and very high resolution images for cartographic projects. In the coming weeks, we'll roll this service out to those who are interested - so stay in touch!

Posted by

Ed Russell

at 14:34 | Comments (0) | Trackbacks (2)

Wednesday, March 16. 2011

Prezi Presentation on GIS for Real Estate Development

A month or so ago I presented to graduate students in the CU Leeds School of Business on the potential uses of GIS in Real Estate Development. The idea was to help the students understand the basics of GIS and to get them using Google Earth a basic GIS. The students were great, they picked up on the concepts and the application of GIS to Real Estate Development very quickly. Some of the students were able to download and open up data in Quantum GIS within the one hour allotted for the presentation.

I used Prezi to create this presentation. It was my first go at it, and I was fairly happy with the results. I am not sure how the class felt about it, but I felt like the presentation flowed more naturally than it did when I have used PowerPoint. The presentation can be found below.

Posted by

Mike Hinke

at 16:26 | Comments (0) | Trackbacks (0)

Friday, March 11. 2011

2D vs 3D maps

I have been working on a map of the Red Mountain Open Space in Larimer County (see below). It connects to an open space in Wyoming called the Big Hole Open Space. Though hill shading is a very effective tool to illustrate underling terrain, until we moved the map into 3D space, I completely missed the dramatic geologic "hole" that the area encompasses!

(Click on image for high res version)