ts will basically be a set of different ellipses:{a1, a2, b1, b2} (with different properties) From that i want to create random Lists of let’s say 15 items (ellipses) Something like that {a1, b2, b1, a1, a2, b1, b1, a2, a1, b1, b2, a1, b2, a1, a1}. But I want to be able to create some constrains. So for example if I have a1 I will be able to have next a2 or b1 but not to b2. I am not sure if this is possible in grasshopper and i was messing around with some logic components but without any luck.
Any help will be greatly appreciated.
…
A low-resolution work. Real time motion capture display made with an 11x8 (88) pixels iPad matrix using Grasshopper + Firefly + Pure Data + TouchOSC for iPad.
exact formula is inside /lib/skybright.cal if this can help you to find the name.
{ RCSid: $Id$ } { Sky brightness function for sunny and cloudy skies.
Additional arguments required for calculation of skybright:
A1 - 1 for CIE clear, 2 for CIE overcast, 3 for uniform, 4 for CIE intermediate A2 - zenith brightness A3 - ground plane brightness A4 - normalization factor based on sun direction A5,A6,A7 - sun direction }
cosgamma = Dx*A5 + Dy*A6 + Dz*A7;
gamma = Acos(cosgamma); { angle from sun to this point in sky }
zt = Acos(A7); { angle from zenith to sun }
eta = Acos(Dz); { angle from zenith to this point in sky }
wmean(a, x, b, y) : (a*x + b*y) / (a + b);
skybr = wmean((Dz+1.01)^10, select(A1, sunnysky, cloudysky, unifsky, intersky), (Dz+1.01)^-10, A3);
sunnysky = A2 * (.91 + 10*exp(-3*gamma) + .45*cosgamma*cosgamma) * if( Dz - .01, 1.0 - exp(-.32/Dz), 1.0) / A4;
cloudysky = A2 * (1 + 2*Dz)/3;
unifsky = A2;
intersky = A2 * ( (1.35*sin(5.631-3.59*eta)+3.12)*sin(4.396-2.6*zt) + 6.37 - eta ) / 2.326 * exp(gamma*-.563*((2.629-eta)*(1.562-zt)+.812)) / A4;
…
End of method assumed. (line 90)Error: Comma or ')' expected. (line 90)Warning: Function 'GetFrustumNearPlane' doesn't return a value on all code paths. Are you missing a 'Return' statement? (line 91)…
Added by Adam Chałupski at 11:24pm on September 23, 2012