Wednesday, March 31, 2010

Week 10-

This lab was very clear about what needed to be accomplished, join a database file with a shapefile, to calculate the acreage of parcels, and then use the select by attribute functions to determine the four largest landowners. I wish I had done this over spring break.

Wednesday, March 24, 2010

Week 9 - Overlays























Q1: I used intersect to create my layer, visually I didn't notice a difference. However; in the attribute table I did notice there were two records with intersect, compared to four with union.

Q2: I used the erase tool for my results, because I needed to subtract the overlapping areas to eliminate them from being candidates for possible camp sites.

Q3: I ended up with 81 features, my largest area was 775,304 sq. meters, and my smallest was 748.11 sq. meters.

Wednesday, March 3, 2010

Week 7

This was a great, quick assingment, that helped me recharge my batteries quite a bit. Everything clicked with this project, the only complaint I have is that ESRI spoon feeds you through thte entire exercise, so it makes the challenge dissapear, I know for me just reading and following everything step by step, makes it harder for me to actually learn something. I wish their assignments didn't hold my had as much as they do.

Saturday, February 27, 2010

Week 6 Georeferencing























This assignment was a lot of fun, it would have been even more fun had I read the instructions all the way through before starting on it. I added my control points and updated the georeference before I wrote down the RMS value for the first part of the lab. I tried to fiigrue out f there was a way I could find out the info I hadd added again, but I didn't have much lusck with that, so I started over and did it again. This time I read all the instructions.

My RMS Values are:
UWF_n: RMS= 7.43321, 1st Order
UWF_s1: RMS=2.77766, 3rd Order

Sunday, February 14, 2010

Week 3: Mexico

















The first map of Mexico depicts the States and their population.

The second map is of Central Mexico, showing its urban areas, railroads, federal highways, and rivers. This portion actually caused me some troubles. Not with the map, but with the legend. I'm still not sure why the legend style changed, but I had to go in to the styles and play around to get them to dispay properly.



The third and final map shows the elevations in Central Mexico.

This post was accidentally posted on my Cartographic skills blog on 2/3/2010. You can view it by clicking the following link. Cartographic Skills

Wednesday, February 10, 2010

Week 4 participation post

This was a map on the ESRI site showing and overview of the hospital damage in Port au Prince.

Week 4- Coordinate Systems


The area, in square miles, was calculated for four counties (Escambia, Alachua, Miami-Dade and Polk), using three different projections system. Each system had differnet area values for each county, with UTM seeming to vary the most between the thres systems.