I have a series of polyline shapefiles and I am trying to automate the process of calculating the X and Y coordinates of the line start and line end using Python.
I have added the 4 fields (startx, starty, endx, endy) in Python with the following code:
Arcpy.addfield_management ("Polyline","startx","DOUBLE")I can perform this task by right-clicking the attribute and calculating geometry, but I want to automate this process for about 30 polylines.
I have the following code I've found that might be able to perform the desired task with some modification:
xExpression = "float(!SHAPE.CENTROID!.split()[0])"yExpression = "float(!SHAPE.CENTROID!.split()[1])"arcpy.CalculateField_management("Polyline", "startx", xExpression, "PYTHON")arcpy.CalculateField_management("Polyline", "starty", yExpression, "PYTHON")This code only calculates the coordinate at the centre of the shape I believe. Are their any expressions I can add to this code to calculate the X and Y coordinates of the start and end points of the polyline?
I am using ArcGIS 10.1 with ArcInfo license.
أكثر...
I have added the 4 fields (startx, starty, endx, endy) in Python with the following code:
Arcpy.addfield_management ("Polyline","startx","DOUBLE")I can perform this task by right-clicking the attribute and calculating geometry, but I want to automate this process for about 30 polylines.
I have the following code I've found that might be able to perform the desired task with some modification:
xExpression = "float(!SHAPE.CENTROID!.split()[0])"yExpression = "float(!SHAPE.CENTROID!.split()[1])"arcpy.CalculateField_management("Polyline", "startx", xExpression, "PYTHON")arcpy.CalculateField_management("Polyline", "starty", yExpression, "PYTHON")This code only calculates the coordinate at the centre of the shape I believe. Are their any expressions I can add to this code to calculate the X and Y coordinates of the start and end points of the polyline?
I am using ArcGIS 10.1 with ArcInfo license.
أكثر...