Calculate Distance.

Question

Hello,

I need to update the distance field using the Pole_ID using Python script. From Pole_ID 0 to Pole_ID 1 and Pole_ID 1 to Pole_ID 2 and etc.

Kindly suggest me anyone.

DanPatterson_Retired · Answer

More calculations are shown here, if you didn't find the suggestions correct

Geometry:  Points in the field calculator

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NeilAyres · Answer

But, be aware that the attribute table is not guaranteed to be in PoleID order. Esp if you have done some editing.

DanPatterson_Retired · Answer

Cumulative Distance If you want distance from the first point then use cumulative distance: repeat the steps from above Pre-logic Script Code: """ input shape field: returns cumulative distance between points dist_cumu(!Shape!) #enter into the expression box""" x0 = 0.0; y0 = 0.0; distance = 0.0 def dist_cumu(shape): global x0; global y0; global distance x = shape.firstpoint.X; y = shape.firstpoint.Y if x0 == 0.0 and y0 == 0.0: x0 = x; y0 = y distance += math.sqrt((x - x0)**2 + (y - y0)**2) x0 = x; y0 = y return distance ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ calculation field = dist_cumu(!Shape!) ‍‍‍ Same caveats as above. NOTE: if you have 3 or more points selected, then it will calculate the values with just the selection.