Pointwise [
1] is a Texan company specialized in grid generation and pre-processing for CFD (Computational Fluids Dynamics). Its major product (Gridgen) embeds a Tcl-Tk based scripting language called
GridgenGlyph [
2]. It provides customization capabilities covering the entire range of functionality available in Gridgen for commands and GUIs.

- Script samples are available here [
3]
- See also this article
Automating Mesh Generation Through Scripting
(pdf)
- See Wenny Wang's articles at the Annual Tcl Conference 2009 [
4] [
5]