STL is a defacto standard for RP -- no consortium got together to construct this
file format like IGES or STEP. As I understand it some one at 3DSystems wrote it
and kept it simple enough. I am not sure what the big deal or debate is
about....
AR
>> -----Original Message-----
>> From: owner-rp-ml@rapid.lpt.fi [mailto:owner-rp-ml@rapid.lpt.fi]On
>> Behalf Of C. Brock Rooney
>> Sent: Wednesday, October 10, 2001 7:34 AM
>> To: Vadim Pikhovich
>> Cc: rp-ml@rapid.lpt.fi
>> Subject: Re: STL
>>
>>
>> At 08:01 AM 10/10/01 -0500, Vadim Pikhovich wrote
>> >
>> >STL - stereolithorgaphy (or more commonly, standard)
>> tessellation language.
>> >
>> Nope.
>> As pointed out by Lex Lennings, it is from StereoLithography.
>> I think the definition was added to the 1989 specification
>> revision because
>> people (probably Doug Mitchell) kept asking 3D, "What does
>> STL stand for?".
>> Another quote from the Specification:
>> "CAD vendors have written interfaces to convert their fully
>> surfaced or solid models into a readable format for
>> StereoLithography. This readable format is known as
>> a StereoLithography file (.STL). The file extension (.STL)
>> is optional and may vary among interfaces."
>>
>> The StereoLithography Interface Specification Oct. 1989 does
>> not even mention
>> "tessellation" at all. It refers to "facets" and "faceted data" and
>> "triangle data", and "triangular faceted model"
>>
>> In any case, calling STL a Language is pushing it. It is a
>> Data format, not
>> a language.
>>
>> While some might find it convenient to obscure the origins
>> of the STL file
>> format, I think it is only fair to give credit where credit is due.
>>
>>
>>
>> C. Brock Rooney, Pres., Brock Rooney & Associates Inc. (Brockware)
>> 915 Westwood Birmingham MIchigan 48009 USA
>> (248)645-0236 fax(248)645-9020 email brockware@ameritech.net
>>
>>
>> For more information about the rp-ml, see http://rapid.lpt.fi/rp-ml/
For more information about the rp-ml, see http://rapid.lpt.fi/rp-ml/
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