OpenSees-Matlab Interaction of Truss Example

This is example code on how to interact between OpenSees and Matlab. The routine writes tcl code, run OpenSees, and read/extract output file. This code use the official Truss example from OpenSees:
https://opensees.berkeley.edu/wiki/index.php/Basic_Truss_Example
Please create the "Truss.tcl" from that website, the opensees analysis will generate "example.out" as output.
Note that all matlab .m, .tcl, and opensees.exe files need to be in the same folder.