Daylight Factor – Analysis Grid:

This study shows how will the number of bricks, it’s placement and material effect the daylight factor of a space?

Using Tedngai’s “Ecotect Analysis Grid 2 Rhino” script, DF analysis data was converted to a surface as a means of 3D mapping “buildable“ area.  The surface peaks and valleys represent high and low lumen levels, and or the absence or prsence of a brick.

Sample Ecotect Data:

1.2768, 1.28509, 1.28971, 2.2466, 3.2209, 6.85491, 13.5377, 16.4381, 17.3614, 19.4248, 19.1552, 17.8918, 17.594, 14.5499, 6.93391, 2.14391, 2.20469, 1.53283, 1.28647, 1.27194, 2.30118, 2.73324, 2.74547, 3.41999, 6.16329, 8.74706, 12.8397, 15.7009, 16.3073, 16.8703, 17.0259, 16.4576, 14.7066, 12.666, 8.22195, 4.83835, 2.97473, 2.02677, 2.40924, 2.30426, 2.0747, 2.02002, 2.69397, 3.96526, 5.18788, 7.06709, 9.70132, 11.1143, 12.1092, 13.5396, 11.7393, 12.2442, 11.5015, 9.74278, 6.9234, 4.75648, 3.81966, 3.62953, 2.42884, 2.75764, 1.83838, 1.94818, 2.2208, 3.75749, 4.04008, 5.90577, 7.41432, 8.33884, 9.43079, 9.25285, 9.03335, 8.62411, 8.31394, 7.14627, 5.73228, 3.91285, 3.94581, 3.76494, 2.97021, 2.5216, 1.89475, 2.14126, 3.055, 3.08061, 2.89965, 4.04766, 5.57898, 6.80126, 6.36056, 6.40134, 6.67575, 7.15078, 5.91055, 5.69576, 4.27529, 3.05747, 2.99106, 3.09462, 2.20309, 2.05633,
1.85562, 2.03552, 3.10559, 2.49052, 3.13657, 3.41528, 5.54401, 5.92736, 6.36552, 5.90912, 5.88865, 6.22181, 6.2505, 5.57344, 4.11307, 3.71256, 3.17819, 2.73857, 1.96613, 3.06346, 2.01836, 2.02988, 2.26621, 2.35518, 3.38627, 3.344, 4.12191, 3.99017, 4.26249, 4.88275, 4.80359, 4.77441, 4.54185, 4.21487, 3.04055, 3.04184, 2.35258, 2.26329, 1.94979, 1.9444, 1.90657, 2.31015, 2.42426, 2.38327, 2.82048, 2.84921, 3.04882, 3.74024, 3.54746, 4.0733, 3.77888, 3.4448, 3.30655, 3.87451, 3.02156, 2.93381, 3.04403, 2.37739, 2.16169, 1.75126, 1.79731, 2.16931, 2.24606, 2.35343, 2.81032, 2.36299, 3.24828, 3.10861, 3.5611, 3.06863, 3.19607, 3.57656, 3.15272, 3.18106, 2.37691, 2.42856, 2.24275, 1.9301, 2.16177, 1.62165, 2.13292, 1.90805, 1.95094, 2.0845, 2.36087, 2.33945, 2.7065, 2.82244, 2.27793, 2.52459, 2.57047, 3.29654, 2.67105, 2.57165, 2.75952, 2.37649, 1.95443, 1.97441, 1.92028, 1.77821,
1.41463, 1.58291, 2.00339, 2.00491, 2.26463, 1.8814, 2.3462, 2.30018, 2.37029, 2.60315, 2.60932, 2.44595, 2.74773, 2.57349, 2.31259, 2.23082, 2.06018, 2.02529, 1.9747, 1.72442, 1.6252, 1.88378, 1.61556, 2.26583, 1.98621, 2.32065, 2.27648, 2.52604, 2.45433, 2.76427, 2.46203, 2.74566, 3.12017, 3.00515, 2.29023, 1.89043, 1.71414, 1.86376, 1.57139, 1.4298, 1.56866, 1.52367, 1.86996, 1.47389, 2.20521, 1.97464, 2.366, 0, 2.96831, 0, 0, 3.04562, 0, 0, 2.24489, 1.906, 1.79433, 1.72464, 1.61449, 1.58028, 1.59958, 1.44488, 1.46463, 1.82442, 1.55283, 1.95514, 2.27154, 2.33628, 2.42075, 2.46626, 0, 2.10981, 1.96945, 2.27968, 2.1647, 1.9145, 1.54681, 1.75096, 1.45142, 1.45571, 1.37694, 1.41833, 1.47806, 1.76558, 1.86742, 1.41017, 2.28152, 1.92666, 0, 2.4009, 2.37541, 0, 1.97827, 1.96118, 1.95548, 1.57764, 1.83329, 1.42455, 1.40263, 1.56174, 1.50026, 1.39591, 1.39619, 1.53413, 1.49531, 1.43636, 1.8753, 1.84723, 2.19027, 1.90457, 0, 1.83741, 1.63231, 1.77766, 1.56946, 1.5087, 1.50814, 1.50956, 1.46052, 1.57554,

Rhinoscript to Convert Ecotect Data:

Option Explicit

'Script written by Ted Ngai    Apr 2008

'This work is licensed under a  Creative Commons Attribution-Share Alike 3.0 United States License.

'http://creativecommons.org/licenses/by-sa/3.0/us/

Call ReadPts()

Sub ReadPts()

        Dim strFilter, strFileName

        strFilter = "Text File (*.txt)|*.txt|All Files (*.*)|*.*||"

        strFileName = Rhino.OpenFileName("Open Point File", strFilter)

        If IsNull(strFileName) Then Exit Sub

        Dim objFSO, objFile, objFileCC

        Set objFSO = CreateObject("Scripting.FileSystemObject")

        On Error Resume Next

        Set objFile = objFSO.OpenTextFile(strFileName, 1)

        Set objFileCC = objFSO.OpenTextFile(strFileName, 1)

        If Err Then

               MsgBox Err.Description

               Exit Sub

        End If

        'Read all the numbers into an array

        Dim txt, a

        txt = objFile.ReadAll

        a = Split(txt,",")

        If Not IsArray(a) Then Exit Sub

        'Rhino.Print Ubound(a)

        'Rhino.Print a(0)

        'Check for number of columns

        Dim col, row, b

        row = 1

        b = objFileCC.ReadLine

        col = Split(b,",")

        'Check for number of rows

        Do While objFileCC.AtEndOfStream <> True

               objFileCC.SkipLine

               row = row+1

        Loop

        Rhino.Print "U : " & Ubound(col)

        Rhino.Print "V : " & row

        'create points

        Dim u,v, x, y, z, n,nMax, arrPoints()

        'Find max value

        Dim aMax, aTemp, k

        ReDim aTemp(row*Ubound(col)-1)

        k = 0

        For v = 1 To row

               For u = 1 To Ubound(col)

                       aTemp(k) = CDbl(a(k))

                       k = k+1

               Next

        Next

        aMax = Rhino.SortNumbers(aTemp, False)

        'assign value to x,y,z

        n = 0

        nMax = row*Ubound(col)

        ReDim arrPoints(nMax-1)

        'Call Rhino.EnableRedraw(False)

        For v = 1 To row

               For u = 1 To Ubound(col)

                       'Scale the u v points or apply mathematical other functions to transform the points

                       x=10*u

                       y=10*v

                       z=(CDbl(a(n))/aMax(0)*50)-55

                       arrPoints(n) = array(x,y,z)

                       n = n+1

               Next

        Next

        Dim UVcount(1)

        UVcount(0) = Ubound(col)

        UVcount(1) = row

        If Ubound(col) > 1 And row > 1 Then

               Rhino.AddsrfPtGrid UVcount,arrPoints

        Else

               Rhino.Print "Cannot make surface"

        End If

        'Call Rhino.EnableRedraw(True)

        objFile.Close

        Set objFile = Nothing

        Set objFSO = Nothing

End Sub

Once in Rhino, the infomation was altered via the mesh patch command in order to make a more legible surface

Results from Data:

Further Alterations:

The data currently shows the presence of bricks as valleys and the absence of bricks as peaks.  Further alterations to the script itself or to the surface in Rhino in order to reverse the values.  By doing so, this information can simulate what the brick composition may look like.