Tuesday, March 30, 2010

Monday, March 22, 2010

Week 8 - Vector Analysis


This week we learned how to buffer and overlay areas of a map. The project went smoothly until I tried to fine the area of the possible sites. I used a suggestion from the discussion board and came up with some numbers, I hope their right.
Question 1: For this step I used the intersecting overlay tool. I did not see a noticable change.
Question 2: I used the erasing overlay tool for this step because it was the most logical. The instructions asked to exclude one area from another which is exactly what this tool did.
Question 3: There were 79 features in this layer. The largest area was 7,765,034 sq. miles, and the smallest area was 748 sq. miles.

Tuesday, March 2, 2010

Week 7 - Data Editing

This map should have been fairly easy, if only I would have taken my time in the beginning. After an hour or so from adding the athletic field shapefile and creating the new features, I realized it was a line feature instead of a polygon. Well, lesson learned. Other that that, it went okay.