FORM FINDING / GALAPAGOS / SHADOWS SETUP (0,20)
(20,20)
FORM THAT SUITS BOTH CRITERIA
Limits: - Outer anchor points are limited into 4 quadrants (5 x 5 in size) so that they always remain surrounding the central anchor when adjusted by Galapagos.
5
- Central anchor limited in a quadrant between points (5,5) and (12.5, 12.5)
5 (0,0)
(20,0) 5
5
Procedure: Shadow area was calculated according to the summer and winter sun angle in London, UK. Aim was to find a minimal summer and maximum winter shadow for the limitations stated above (Fig. 1 and 2). By using the F=X-Y function Galapagos has calculated which form would give best results in both summer and winter (Fig. 3)
Shadow area: 166mm2
Final result: Shadow area: 145mm2
Shadow area: 270mm2 Shadow area: 395mm2
Fig. 1 (above): Galapagos results for minimum summer shadows (note how the final result “dodges the 61.5 degree sun angle, London, UK) Fig. 2 (below): Galapagos results for maximum winter shadows (sun angle 14.5 degrees, London, UK)
Fig.3: Shape that within given limits achieves smallest summer and greatest winter shadow.
Procedure of setting up a function which allows Galapagos to calculate a shape which satisfies both of our wishes (see examples on the right hand side).
Project One: Learn Form Finding / Galapagos / Shadows by Luka Kreze
Shadow area: 840mm2 Shadow area: 462mm2
Shadow area: 1215mm2
Final result: Shadow area: 1997mm2
Maximum difference between summer and winter shadow area: -1405mm2 where summer shadow area is about 400mm2 higher from its minimal value from the previous test. The winter shadow area does not change considerably from the previous test.