| Re: Keeping text Readable in Object Graphics [message #16695 is a reply to message #16693] |
Sat, 14 August 1999 00:00  |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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David Borland (dborland@egi.com) writes:
> Can anyone point me in the right direction for getting text to remain
> readable when rotated in object graphics, and still have hidden surface
> removal remain active?
> If I use the OnGlass keyword, the text stays properly oriented, but the
> text also stays visible even when it should be hidden behind something. I
> have tried using the same technique that you use to rotate displays with the
> Trackball object, on the text object, and I get skewed, and reversed and
> other unfavorable results.
I'm afraid this may fall into the category of "having your cake
and eating it, too". My mama always told me it just wasn't
possible. :-(
Cheers,
David
P.S. If you strung a wire through the middle of your
text, parallel to the axis, and the text string could
rotate on the wire freely, and then you attached a
weight to the bottom edge of the text, then I think
as you rotate the axis in space the text *should* be
readable. *There* is the algorithm. I'll leave the
implementation up to you (or maybe RSI in a future
update). :-)
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
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