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Working with Geometries

 This week I learned about working with geometries in Arcpy; how to read, write, and work with multipart features. We began by setting our workspace and utilizing a cursor in order to create a new txt file, and write data into it from the rivers.shp. Below is a short summary of the steps I took: 

  1. Import arcpy
  2. from arcpy import env
    1. set workspace
    2. set overwrite
    3. set outpath
  3. define variable for river.shp
  4. create txt (rivers_ESG.txt)
  5. create search cursor
  6. set variables for OID, NAME, and vID to be able to call upon them
  7. set first for loop in cursor
    1. vID + = 1
    2. set second loop in row[1]
      1. set third for point in part
        1. print OID, vID, coordinates x,y, NAME
        2. output.write (same as above) to add to text file
I encountered one main issue, and that was how to print everything. Looking back at the past lessons, I saw that I had to call upon the .format( ). However,  this function did not work for printing the names. After connecting with my peers, they suggested using simply row[2].  This worked but did not make sense to me until they explained that it represeted the field 2 in the search cursor! Genius! :) 

Below are the script outputs for the final script and a snip of the newly created txt file. 










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