CAD & TrueType Fonts - Part 2
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CAD & TrueType Fonts
Part 2
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Autodesk’s Mistake

Why were the SHX equivalents defined this way instead of as filled outlines?  Why were the inherent qualities of TrueType ignored in creating True Type equivalents of SHX fonts?  These AutoCAD supplied TrueType fonts will never be of any use other than to mimic SHX fonts in AutoCAD drawings with an even poorer quality of output.  They contribute to the clutter in the Windows font system - a collection of fonts also available to Word and any other Windows program.

Why do the Autodesk setup programs install all these useless and badly designed fonts automatically and without user selection or confirmation?  It annoys me no end although I’m probably affected more than most users of Autodesk products, because I install many packages and versions for review.  Every time I install an Autodesk product it adds all these undesirable fonts over again, wasting my time manually searching and destroying them yet again.  This is the same for all current versions of AutoCAD, LT, Mechanical Desktop, Map, CADOverlay, and others.  Now I keep a copy of my \Windows\Fonts\ folder, so I can easily copy it back when required overwriting and removing un-required fonts in the process.

There are also several rather more conventional TrueType fonts.  Sadly, they do little more than duplicate the 'Times' appearance, only in a cruder form.  If you want to use publication-quality Serif Roman style text like Times in your drawings (and why not indeed?)  Then you can use the fonts already standard in Windows, or the extras provided with Office - Times New Roman, Century Schoolbook, Book Antigua, etc. There's no need for a CAD product to supply that sort of font.  What would be more useful is a set of TrueType ISO/DIN drafting fonts properly defined.  Yet users are required to source those from third party font suppliers.

Imagineer, TurboCAD, IntelliCAD

Imagineer Technical 2.0It is worthwhile to consider how some of the other Windows-based CAD products use TrueType fonts.  They usually supply a few fonts that look more in keeping with traditional drawing board pen practice than the publishing-oriented fonts normal in Windows.  These fonts are invariably properly defined, filled outline fonts.  Some mimic the 'Graphos nib on edge' style that was popular with pen and ink users.  They also usually provide some font substitution mechanism to handle the AutoCAD SHX font names found in Glossary Link DXF files.  It seems easy enough for these vendors to handle.  Why has Autodesk implemented all this so poorly?

Intergraph has the best scheme I've seen in its Imagineer Technical program.  Intergraph supplies some very well made TrueType fonts that accurately render the ISO/DIN 'lettering-guide' CAD text and the USA standard 'Leroy' stencil style.  Both Intergraph and IMSI ( Glossary Link TurboCAD) also provide good mono-spaced fonts, which are very useful in tabulated data, and usually hard to come by from general Windows font sources.  Intergraph seem to be adept at keeping their best products secret!

Autodesk seems to be migrating users to TrueType, yet it still implements TrueType as a subsidiary system requiring more resource overheads than SHX.  The reverse ought to be the case, since TrueType is a built-in Windows sub-system available to any application, and should relieve the CAD program of processing overhead to make use of it.  There are many reports of TrueType in Glossary Link DWG files resulting in larger filesizes and slower operation, although I haven't verified those claims personally.

TurboCAD's font toolsPerhaps there are complications embedding TrueType data in the DWG file format.  Glossary Link Visio's Glossary Link IntelliCAD programmers indicated to me that they were having difficulty implementing TrueType in IntelliCAD, and it would not be incorporated in the first release.  Yet Visio uses TrueType exclusively and efficiently in Visio Technical.  Of course, Visio is a 100% native Windows system that accesses DWG files as a translated import/export option (as does TurboCAD) without the dominating requirement of maximum and back-dated DWG format compatibility.

IntelliCAD currently avoids this issue by not supporting TrueType at all.  However, it does handle the to-&-fro data transfer without upsetting any TrueType fonts in the DWG file, and substitutes SHX fonts while in IntelliCAD in a sensible manner.

TurboCAD v5.0 uses TrueType fonts only, and implements TrueType far better than AutoCAD does, including supplying sensible fonts.  But TurboCAD falls down when translating to and from DWG files.  It substitutes Times New Roman for all fonts (SHX or TTF) found in a DWG file, and when saving as DWG converts all TurboCAD text to SHX fonts in AutoCAD's 'normal' Style which is normally that awful old TXT font.  It also (irreversibly) converts AutoCAD multi-line paragraph text to a single very long line.  This behavior may be improved in the new TurboCAD Pro 5.1 update, which I haven't been able to try yet.  The Future

Maybe this is a transitional stage for Autodesk and that text handling with be handed to Windows in the future.  I hope AutoCAD Release 15 (or whatever the next major version will be named) will abandon SHX completely, do sensible font substitutions for old drawings, make full and efficient use Windows and allow us to use TrueType, and replace the badly-produced fonts that we are currently forced to install.

 

Third Party Fonts
On the subject of fonts, remember that the use of 3rd party commercial SHX fonts should always be avoided in any drawings that are shared in a collaborative situation.
Third-party fonts help you to produce good-looking prints to send to people, but present a problem if you send copies of the DWG files, you also need to send copies of any non-standard fonts.  In the case of third party commercial fonts this is almost certainly a breach of your licensing conditions.
If you want better than average fonts, I'd suggest it's time to move to TrueType.

 


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CAD & TrueType Fonts
Now that AutoCAD is Windows-only and drawing text can be rendered with TrueType fonts, there is a strong case to abandon the old SHX-based font...

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