Latest Contributions by LukeWebb

Speaking from a very high level. (It would take me quite some time to understand all the code) It looks like you calculate the offsets using either the X or Y plane only. I think this could account for the widths looking to be not of relative size as the smaller 17 is almost exactly on the XY axis whose width was then extrapolated using either X or Y only, whereas the larger 11 is almost perfectly on the X axis. (So has ended up with a "correct" relative width) If the statement above is wrong, please stop reading here! You could look to create the offset on all axis using code such as (Again very high level, semi pseudo code to give ideas only likely with syntax issues as typed in notepad:    beforePoint = aPointCursorRow currentPoint = aPointCursorRowWereTurningToAPolygon dX = current.shape.Centroid.X - beforePoint.shape.Centroid.X dY = current.shape.Centroid.Y - beforePoint.shape.Centroid.Y angle = atan2(dX, dY) * 180 / pi distance = width_factor(current.attributeValue) newpoint1 = currentPoint.shape.pointFromAngleAndDistance(angle + 90, distance) newpoint2 = currentPont.shape.pointFromAngleAndDistance(angle + 90, distance) coordinates = [beforePoint, newpoint1, currentPoint, newpoint2] **Final Note - You probably would want to use 3 'rows' instead of 2 to make each point.  -possibly substituting currentPoint for nextPoint at the final co-ordinates step. - calculating the "Angle" using all 3 points, instead of 2 in case the direction chages a lot. (Except for the start and end of the data where you obviously only have 2 points!) ... View more

Following that, I noticed you are trying to compare a feature datasource to oldP... which is actually a list, so cant really be compared. (You need to compare it to the paths insdie this list, as it will never equal the list) I wrote a version that should probably work: import csv import arcpy #     set up list for data dataMappingList = [] #     read data from file and store in lists with open(r"C:\hardcode_to_Path\dsListTEST.csv", "rb") as dsList:      r= csv.reader(dsList,delimiter=",")      for i,row in enumerate(r):          if i>0:  #skip the header                #To make mapping the old paths to new paths easier, we store each dataset as a list                data_list_item = [str(row[0]), str(row[1]), str(row[2])]                #Then we put them in our master list, which will hold a list, of lists!                dataMappingList.append(data_list_item) #     replace the existing datasource with the new path, feature class name and layer name. mxd = arcpy.mapping.MapDocument(r"hardcode_to_testMap.mxd") for lyr in arcpy.mapping.ListLayers(mxd):     if lyr.supports("DATASOURCE"):         for data_list_item in dataMappingList:              if lyr.dataSource == data_list_item[0]:                   lyr.replaceDataSource(r"Hardcode_to_new_location","None",data_list_item[1], True)                   lyr.name = data_list_item[2]                   print lyr.dataSource mxd.saveACopy(r"hardcode_to_Copy_testMap.mxd") del mxd dsList.close() ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ... View more