Sunday, January 31, 2010
Week 3 Deliverables
The map above, showing the states of Mexico, was created during the week 3 lab (GIS Cartography). I did not run into any problems while creating this map, however, I can't say the same for next map.
The Central Mexico map is showing a few of the urban areas in this country. On my first attempt to label the urban areas over a million, I could not figure out why all urban areas were being labled. I triple checked to make sure my SQL statment looked exactly as the example showen on page 9, but could not find where I went wrong. So with that, I went back to my Week3_map1.mxd and started the map over again. I'm not sure what I did different but second time through was a success.
This map is showing the elevation of Mexico using a stretched symbology.
Tuesday, January 26, 2010
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.
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.
Module 1 - Exploring a GIS Map
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