get the first row of a path result

Drago

How I can get the first row of a path result. Supposed that the result is saved in stress, which is defined like this:

sol = Model.Analyses[0].Solution
stress = sol.AddMaximumPrincipalStress()
stress.ScopingMethod = GeometryDefineByType.Path

then I can access the data e.x with:

stress.PlotData.Values[3]

But the first three columns contain the coordinate, not what we see in Mechanical - the distances along the path. Thank you

Drago

import math

x_coord = stress.PlotData.Values[0]
y_coord = stress.PlotData.Values[1]
z_coord = stress.PlotData.Values[2]

x_diff = [x - x_coord[0] for x in x_coord]
y_diff = [y - y_coord[0] for y in y_coord]
z_diff = [z - z_coord[0] for z in z_coord]

dist = [math.sqrt(x*x + y*y + z*z) for x,y,z in zip(x_diff,y_diff,z_diff)]