The distribution from file expects an ASCII (text) file that contains the data in the following format for scalar distributions:
#X Y Z V1
0 0 0 1
10 0 0 2
10 10 0 3
0 10 0 4
The # denotes a comment line - a line that is skipped by the data reader
X, Y and Z are spatial coordinates of the point
V1 is the value of the distribution
For a vector distribution three values V1, V2 and V3 are expected. Vector distribution can be ised to specify the distribution of the Surface traction load in all three directions. The unit for the distributed surface traction is force/area.