[Radiance-general] Re: trans dashboard widget

[Andy McNeil]

Hi Jack,

Yes the inevitable question.  I actually thought about mentioning portability in my original email, but thought that it was presumptuous to think that anyone other than me might actually want it.  It is a silly tool after all, though not as silly as my original iphone app idea.

Mac widgets are html and javascript, so putting it on the web is easy in theory.   I'll see if I can get it to work on the web, and then try to find a suitable home for it.

I think windows 7 has equivalent sidebar gadgets that are also html with javascript.  Some Linux variants have a similar widget/gadget scheme.  I'd be happy to share what I have with anyone who wants to create the same for another operating system, but I don't have easy access to windows 7 or a linux box, so I can't do that myself.

Best,
Andy


On Apr 30, 2010, at 12:01 PM, Jack de Valpine wrote:

> Hi Andy,
> 
> OK, the inevitable... the question that you know had to come.... ;->
> 
> Is there any way to port this to Linux (and I suppose Windows)? Or perhaps port to something web based?
> 
> Best,
> 
> -Jack
> 
> -- 
> # Jack de Valpine
> # president
> #
> # visarc incorporated
> # http://www.visarc.com
> #
> # channeling technology for superior design and construction
> 
> 
> 
> Gregory J. Ward wrote:
>> Hi Andy,
>> 
>> This was more of a struggle than I expected.  I don't know what I did with my old color wheel, so I tried to come up with an expression to generate a new one based on the Wikipedia page on HSV conversions.  It's not quite what I was going for, but it's OK:
>> 
>> pcomb -x 512 -y xres \
>> -e 'xc:xres/2;yc:yres/2;xr=(x-xc)/xc;yr=(y-yc)/yc' \
>> -e 'rv=.7349*xr-.3495*yr;gv=-.2651*xr+.2279*yr;bv=-.2651*xr-.9268*yr' \
>> -e 'max(a,b):if(a-b,a,b);Y=1-max(rv,max(gv,bv))' \
>> -e 'in=1-xr*xr-yr*yr' \
>> -e 'ro=if(in,Y+rv,.5);go=if(in,Y+gv,.5);bo=if(in,Y+bv,.5)' \
>> | ra_tiff - color_wheel.tif
>> 
>> When the user chooses a color, you'll have to map back to linear RGB (undoing the 2.2 gamma) and normalize.
>> 
>> Hope it works!
>> 
>> -Greg
>> 
>> P.S.  I didn't notice the trick of going to "plastic" when transmission is zero -- very nice!
>> 
>>> From: Andy McNeil <amcneil at lbl.gov>
>>> Date: April 30, 2010 9:22:17 AM PDT
>>> 
>>> Hi Greg,
>>> 
>>> You're right, the ability to specify color would be nice.  Yes, please send your image.
>>> Did you notice what happens when Td & Ts are set to zero?
>>> 
>>> Thanks,
>>> Andy
>> 
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