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February 14, 2006

5 Steps of Vector Overlay

For review, here are the five steps of vector overlay:

1. Prepare Monotonic Segments
2. Detect Intersections
3. Cluster Intersections
4. Write New Chains
5. Write New Polygons

We'll go back over this on Thursday.

February 13, 2006

Group Projects Discussion

Let's use this entry as a gateway to general discusions about group project topics.

Everybody can post comments to this entry.

When you have your group project topic crystallized, you can create a new entry for that. I believe that works the same as for me when I post an entry to the blog. Go to blog. lib.umn.edu in your webbrowser and select "Log in to your blogs". After you go through the .X500 authentication, you should see the name of this blog and several options including GEOG5563.

I think that's how it will work for everybody; believe me, I'm no expert for blogs. I've found the help to be very useful.

February 7, 2006

Topology Exercise 7Feb

Here is the topology exercise we briefly went over at the end of class. You can download a pdf version of the figure at:


Remember to prepare three tables, nodes, chains, and polygons.

If you have any questions, please post a comment.

We will go over this optional exercise on Thursday.
Francis Harvey