Tai: Font 3t-unicode.shx

In the world of Computer-Aided Design (CAD), specifically within AutoCAD and compatible software, text handling is often the most significant hurdle for non-English users. For engineers, architects, and designers working in the Thai language, the file 3t-unicode.shx (often searched for as "Tai Font 3t-unicode") represents a critical solution to a decades-old problem.

This article explores what this font is, why the "Unicode" designation matters, and how it resolves display issues in technical drawings. tai font 3t-unicode.shx

1. Copy "tai font 3t-unicode.shx" to AutoCAD's Fonts folder (e.g., C:\Program Files\Autodesk\AutoCAD 20XX\Fonts)
2. Restart AutoCAD
3. Use STYLE command → New style name → Select "tai font 3t-unicode.shx" as SHX font
4. Apply the style and type Tai Viet text using a Unicode input method

tai font 3t-unicode.shx does not appear in any public font database (Google Fonts, DaFont, Unicode.org). It is likely: In the world of Computer-Aided Design (CAD), specifically

Recommendation: Contact the person or organization that provided you the file (or whose CAD standards require it) for the original source and license. tai font 3t-unicode

Engineering firms (e.g., from Vietnam, Thailand, or China) that created CAD drawings of dams, roads, or transmission lines in Tai-speaking regions often used this font to label villages or land parcels in the local language. If you inherit a 2004 drawing from a project in Sơn La province (Vietnam), this font is essential.

Even with the correct font file, issues can arise.

Unlike TrueType (.ttf) or OpenType (.otf) fonts, an SHX file is proprietary to Autodesk products (AutoCAD, AutoCAD Map 3D, Civil 3D). SHX stands for Shape File Font. These fonts are compiled from .SHP (shape definition) files. They are highly optimized for speed and memory usage, making them ideal for simple linework like single-line text in engineering drawings. However, they are notoriously limited regarding complex glyph layouts—which is a major problem for Tai scripts.

  • Missing diacritics or incorrect stacking:
  • Printing differences:
  • DXF/DWG round-trip issues: