next up previous contents
Next: post_line_operat index operat Up: Input file, data part Previous: post_integrate_result index result   Contents

post_line index x_0 y_0 z_0 x_1 y_1 z_1

This record specifies a line in space for which the average or sum of the unknown values will be calculated. The values are placed in a record post_line_dof with the same index. Internally in TOCHNOG, post_point records are used to evaluate the unknowns on the line. In 1D only x_0 and x_1 should be specified, etc.. In the example below, the average of the $x$-velocity between the points (3,1) and (3,7) will be printed

number_of_space_dimensions 2
post_line 1 3. 1. 3. 7.
print_filter 0 -post_line_dof 1 -velx
control_timestep 1 1. 100.
control_print 1 -post_line_dof

The coordinates are defined in the initial mesh. See also: post_line_n, post_line_operat and post_line_moment.

tochnog 2001-09-02