cmo_name is type character, required
attr_name1 is type character, required
operation is either add which will cause new nodes to be added to the mesh object or ifirst, islast, istride which specifies the nodes whose values will be replaced.
filename is type character required and specifies the ASCII file to be read.
** EXAMPLES: **
new nodes will be added to mo_tet2, and their coordinates will be supplied from the file. The value of nnodes will be updated.
Contents of myfile:
0.017 12.65 7.25
1.1 10.2 3.4
will cause 2 nodes to be added to the mesh.
The values of itp1 will be replaced. If newattr does not exist it will be created as a VDOUBLE node based attribute. If psetp1 contains the nodes 12, 27 and myfile has the contents:
then itp1(12) will be set to 0, itp1(27) will be 2; newattr(12) will be set to 100.2 and newattr(27) will be set to 99.6.