Sunday, January 17, 2010

Module 1 - Using GIS to Solve Problems

The map you see above is showing the possible locations for a new youth center.

During the exercise I had a problem with step 5, which was to create a selection expression. Once I created the expression, I checked the view result to make sure it was correct. My expression looked just like the result. I clicked apply and 26 available buildings were selected. There were only supposed to be 6.

To retrace my steps, I wanted to unselect those 26 available buildings and retry. Since the zones_union also had features selected I tried a work around. I went to the selection tab on the table of contents and right clicked on available buildings and clicked clear selected features. I recreated the selection expression. I'm not sure what happened the first time, but the second time was a charm.

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