| Re: Origins of the species [message #73] |
Thu, 11 July 1991 17:44 |
churchill
Messages: 5
Registered: January 1991
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Junior Member |
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In article <1991Jul10.201202.9420@colorado.edu>, ali@cs.Colorado.EDU (Ali Bahrami) writes:
> ....
> Anyone who reads this newsgroup regularly should know the answer to
> this. Around the time that the Unix version of IDL first became
> available (1988), Precision Visuals Inc. (PVI) entered into an agreement
> with RSI under which they enhanced and resold IDL under the name
> PV~WAVE. In September of last year, they exercised an option
> in that agreement that resulted in the following:
> - They received a copy of the IDL source code as it existed
> in September 1990 in return for a one time payment to RSI.
> - The connection between RSI and PVI was severed. We do not
> give them code updates, enhancements, or bug fixes of any
> kind, and they do their own support and development.
> IDL and PV~WAVE are now on separate development tracks.
Thanks Ali for the history. Now for the future. The split is very sad and
unfortunate to some of us who use both packages. Does it mean this group will
have to split too?
--
Jack N. Churchill | jack@syd.deg.csiro.au
CSIRO Division of Exploration Geoscience | churchill@decus.com.au
Remote Sensing Group | Phone: +61 2 887 8884
PO Box 136 North Ryde NSW 2113 | Fax: +61 2 887 8909
Australia | Telex: AA25817
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| Re: Origins of the species [message #76 is a reply to message #73] |
Wed, 10 July 1991 17:15  |
pcp2g
Messages: 3
Registered: July 1991
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Junior Member |
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In article <1991Jul10.201202.9420@colorado.edu> ali@cs.Colorado.EDU (Ali Bahrami) writes:
> PV~WAVE:
> Anyone who reads this newsgroup regularly should know the answer to
> this. Around the time that the Unix version of IDL first became
> available (1988), Precision Visuals Inc. (PVI) entered into an agreement
> with RSI under which they enhanced and resold IDL under the name
> PV~WAVE.
In what way was PVWave enhanced over IDL? We have IDL here, and there will be
a demonstration of PV this weekend that I plan on attending. I like IDL,
and I imagine our department will keep getting it as it is updated, but
I'd like to know about PV also. Do they keep track of each other; that is,
if PV comes up with some cool command, will IDL figure it out too (and
vica-versa, too!)?
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| Re: Origins of the species [message #77 is a reply to message #76] |
Wed, 10 July 1991 18:57 |
thomsen
Messages: 2
Registered: July 1991
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Junior Member |
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Ali Bahrami writes
... an excellent text on origin of IDL, PV-Wave, and NCAR Graphics.
Thanks for the info. The demo I saw was a guy at U. Texas who used
IDL for years and years. Appreciate the name - David Stern rings the
bell. I can also see how NCAR Graphics got into the loop; was aware
of the Boulder colocality; there is some similarity, enough to wonder
(without the misleading reference I got) about some genetic sharing
back in the musty past.
Mark R. Thomsen
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