0.533000void brightfunc skyfunc2 skybright perezlum.cal010 1.382e+00 3.201e-01 1.066879 -0.754821 0.015485 -0.048998 -0.089403 0.066341 -0.860010 0.505947
The values in bold are then evaluated using the equations in the file perezlum.cal inside the RAYPATH directory in Radiance..
{ All-weather Angular Sky Luminance Distribution . Additional arguments required for calculation of skybright: A1 - diffus normalization A2 - ground brightness A3,A4,A5,A6,A7 - coefficients for the Perez model A8,A9,A10 - sun direction}skybright = wmean((Dz+1.01)^10, intersky, (Dz+1.01)^-10, A2 );wmean(a, x, b, y) = (a*x+b*y)/(a+b);intersky = if( (Dz-0.01), A1 * (1 + A3*Exp(A4/Dz) ) * ( 1 + A5*Exp(A6*gamma) + A7*cos(gamma)*cos(gamma) ), A1 * (1 + A3*Exp(A4/0.01) ) * ( 1 + A5*Exp(A6*gamma) + A7*cos(gamma)*cos(gamma) ) );
This data is then mapped to the "glow" material that represents the celestial hemisphere...You can edit the climate based sky produced by Honeybee and enter your own values. The other option would be to just use gendaylit from DOS Prompt.…
urs x 365 days ), and with modulus in the screenshot above, i could manage to do for every hour. but sometimes in my definition, i have a range from 1 to 35040, which is 365 x 24 x 4 ( 4 here defines every 15 minutes), on other word, when the number is one, then i have 01:00 O'Clock, when the number is 2 then i have 01:15 O'clock, when the number is 3 then i have 01:30 O'Clock...etc , so when the number is 97, which is the next day ( and after the number 96 which is equal 24 hours x 4), then I should have again 01:00 O'Clock.
I hope my idea is clear, thanks in advance!
Nassif…
tecture. Hochbau | University of Innsbruck . A simple random, but at the same time organised growth routine. 5 iterations for this image.
Link to the course here:
http://www.exparch.at/index.php?option=com_content&task=view&id=1054&Itemid=87
View full size...as per Pieter's suggestion…
closest point to the very first would be removed from the list, so the initial list reduces from 100 to 98. From the 98 i pick one and search the remaining 97 for the closest. From the remaining 96 i pick again one and search in the 95,...
(The product I want to result is:
having a number of random lines in 3D space, produced by an even number of points as discribed, this shall be the initial springs for a ("selfadjusting") tensegrity. Each one of these lines (later springs in kangaroo) get divided in three areas - that means four points. These four points again are the "attractor points" of neighbor springs, so the strut "knows" where to set the next elastic connection,...the rest I´ll have to figure out)
angelos…
more complex geometries, nothing works anymore and the output is weird: every test point has the same value (97% DA) and it's impossible to visualize these values even if a text tag 3D is assigned to points (check Result.jpg)
The output that we get is a uniform mesh.
To check this output we also run an illuminance analysis using the same test surface, giving 300lux as high and low bound and some areas didn't reach the target value - which means that there must be some areas below that threshold.
Another thing: as you can see from Screenshot.jpg at one point we get the string saying *.dgp not found. Is that a problem?
Attached you can find the Grasshopper file.
Thank you all!
Simone
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