Sunday, March 21, 2010

Week 9 - Vector Analysis II

This map is of the potential campground sits in a state forest. I did this by creating a buffer for the water and roads layer, and then setting an overlay in order to show the potential sites that were within 150 meters of a lake, 500 meters of a river and 300 meters of a road. The only issue I had with this assignment was to trying to not get the layers confused with one another.

Q1: Which tool did you use? Was there any noticeable difference between its results and the results from the instructions?

* The only tool that had the same layout as the union tool was the intersection tool. I gave me the same results without having to select and export the features that had a 1 in both the "insd_wbuf" and "insd_rbuf" fields.

Q2: Which tool did you use here? Why?

* I used the erase tool to exclude the conservation areas.

Q3: How many features are in this layer? What is the area of the largest feature? What is the area of the smallest feature?

* There were 79 features the layer.
* The largest feature was 1919 acres
* The smallest feature was 1 acre

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