Pointwise’s automation API, Glyph, is implemented as a set of Tcl procedures that have an object-oriented feel. You can do a lot with TCL. But you can do most things a lot more easily with Python. Even more so with libraries like NumPy. If your work calls for no more than an occasional tweak of readily available Glyph scripts, TCL is fine. But if you’re planning on more involved automation, we recommend you install Pointwise’s Python Client and start down this route.