1. NR 322: Single Layer Analysis Jim Graham Fall 2008 Chapter 8 & 9

2. Geometric Calculations

3. Add A Field Add a double

4. Polyline Geometry Use an “Equidistant Projection”

5. Polygon Geometry Use an “Equal Area” Projection

6. Centroid

7. Making Centroids Add fields for X and Y Use “Calculate Geometry” to add the X and Y coordinates of the centroid Open the dbf in Excel Save the dbf to a tab-delimited text file Use “Tools -> Add X Y Data” to add the text file as points

8. Buffering Creates polygons around existing vector features

9. Buffering ArcToolbox -> Analysis -> Proximity -> Buffer

10. Buffering Create a polygon Shapefile for buffers Open the “Editor” toolbar Start an edit session Select a feature using the edit tool Task: Create new feature Target: Select “Buffer” from the “Editor” menu Enter the distance for the buffer to add around the feature

11. Dissolving ArcToolbox -> Data Management Tools - > Generalization -> Dissolve Combines features based on a common attribute value

12. Clip ArcToolbox -> Analysis Tools -> Extract - > Clip ArcToolbox -> Overlay -> Erase ArcToolbox -> Data Management Tools - > Raster -> Clip

13. Intersection ArcToolbox -> Analysis Tools -> Overlay -> Intersect ArcToolbox -> Spatial Analysis Tools -> Local -> Combine

14. Generalization ArcToolbox -> Data Management Tools - > Generalization -> …

15. Generalization (100 meters) OriginalGeneralized to 100 meters

16. Generalization (1000 meters) OriginalGeneralized to 1000 meters