GIS4043 Vector II Lab

Process Summary

1)      Copied VectorII.zip from the R: drive and pasted it to my computer

2)      Opened ArcMap and loaded the roads layer.

3)      Opened the Analysis tool>Proximity and double-click Buffer. Entered the Input and Output. Set the distance to a linear distance of 300 meter. Clicked OK and tool created a new buffer feature.

4)      Added the water.shp layer.

5)      Added a new field called “buffdist” of a Short Integer type.

6)      Right clicked buffdist field and chose Field Calculator. In the buffdist= box I typed 150 and hit ok. Repeated the same process for Rivers with a distance of 500. Cleared the selections.

7)      Opened the Buffer tool from the Toolbox. Set the Input features to Water and named an output file. Selected the Field option of “buffdist”. Set the Dissolve Type as List. The check box was selected for “buffdist”. Clicked OK.

8)      Opened the ArcPython widow. Typed “import arcpy” and clicked enter. Typed a command script of :

arcpy.Buffer_analysis

(“roads”, “C:/Users/rwachend/Desktop/UWF/Intro2GIS/Vector Analysis II”, “100 Meters”, “Full”, “Round”, “All”). Clicked enter and the script worked on the third or fourth try. I realized the file path needed forward slashes instead of back slashes.

9)      Turned off the Roads, Water and 300m Road buffed the distance water buff layer.

10)   Opened the attribute table for the Water_Buffer layer and added a new field of short integer and called it “insd_wbut”. Used the Field Calulator to assign a value of 1 to the new column.

11)   In the Toolbox>Analysis Tools>Overlay, selected Union. Selected Water_buffer and Roads_buffer as the input feature. Named the output class as Buffers_union. Chose All for JoinAttributes option. Clicked Ok.

12)  Opened the Select by Attributes tool, chose “insd_rbuf”=1 and “insd_wbuf”=1.

13)  Exported the selected features as a new shapefile called “buffer_union_export”

14)  Added the conservation_areas layer. Selected the Erase tool in the Overlay function. Chose the rbuff_and_wbuff layer as the input feature. Chose the conservation_area layer as the ouput. Named the new layer possible_sites. Clicked ok.

15)  Opened the Multipart to Singlepart tool. Named the output as possible_sites_single.shp

16)  Opened the attribute table of the possible_sites_single.shp and added a new field called “area” of a Double type. Right clicked to Calculate Geometry function and used sq/ft to fill in the Area field.

17)  Added all essential map elements and exported as .jpeg.