為什麼要在 Dynamo 的視覺程式設計環境中使用文字程式設計？視覺程式設計有許多優點。您可藉此在直覺的視覺介面中建立程式，不必學習特殊語法。但是，視覺程式可能會變得雜亂，有時會缺少功能。例如，Python 為編寫條件陳述式 (if/then) 及迴圈提供更容易達到目標的方法。Python 是功能強大的工具，可以延伸 Dynamo 的功能，您可藉此使用幾行簡潔的程式碼來取代許多節點。
視覺程式：
文字程式：
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
solid = IN[0]
seed = IN[1]
xCount = IN[2]
yCount = IN[3]
solids = []
yDist = solid.BoundingBox.MaxPoint.Y-solid.BoundingBox.MinPoint.Y
xDist = solid.BoundingBox.MaxPoint.X-solid.BoundingBox.MinPoint.X
for i in xRange:
for j in yRange:
fromCoord = solid.ContextCoordinateSystem
toCoord = fromCoord.Rotate(solid.ContextCoordinateSystem.Origin,Vector.ByCoordinates(0,0,1),(90*(i+j%val)))
vec = Vector.ByCoordinates((xDist*i),(yDist*j),0)
toCoord = toCoord.Translate(vec)
solids.append(solid.Transform(fromCoord,toCoord))
OUT = solids
# Load the Python Standard and DesignScript Libraries
import sys
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
# The inputs to this node will be stored as a list in the IN variables.
#The solid module to be arrayed
solid = IN[0]
#A Number that determines which rotation pattern to use
seed = IN[1]
#The number of solids to array in the X and Y axes
xCount = IN[2]
yCount = IN[3]
#Create an empty list for the arrayed solids
solids = []
# Place your code below this line
# Assign your output to the OUT variable.
OUT = solids
看一下 Dynamo 中的 Python 節點。請注意，我們使用的語法與 Dynamo 節點標題中的語法相同。查看下面加上註解的程式碼。
# Load the Python Standard and DesignScript Libraries
import sys
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
# The inputs to this node will be stored as a list in the IN variables.
#The solid module to be arrayed
solid = IN[0]
#A Number that determines which rotation pattern to use
seed = IN[1]
#The number of solids to array in the X and Y axes
xCount = IN[2]
yCount = IN[3]
#Create an empty list for the arrayed solids
solids = []
#Create an empty list for the edge curves
crvs = []
# Place your code below this line
#Loop through edges an append corresponding curve geometry to the list
for edge in solid.Edges:
crvs.append(edge.CurveGeometry)
#Get the bounding box of the curves
bbox = BoundingBox.ByGeometry(crvs)
#Get the x and y translation distance based on the bounding box
yDist = bbox.MaxPoint.Y-bbox.MinPoint.Y
xDist = bbox.MaxPoint.X-bbox.MinPoint.X
# Assign your output to the OUT variable.
OUT = solids
由於我們將平移並旋轉實體模組，因此接下來使用 Geometry.Transform 作業。看一下 Geometry.Transform 節點，我們知道需要來源座標系統與目標座標系統，以平移實體。來源是實體的關聯座標系統，而目標是所排列每個模組的不同座標系統。這表示我們必須循環使用 x 值與 y 值，以便每次以不同方式平移座標系統。
# Load the Python Standard and DesignScript Libraries
import sys
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
# The inputs to this node will be stored as a list in the IN variables.
#The solid module to be arrayed
solid = IN[0]
#A Number that determines which rotation pattern to use
seed = IN[1]
#The number of solids to array in the X and Y axes
xCount = IN[2]
yCount = IN[3]
#Create an empty list for the arrayed solids
solids = []
#Create an empty list for the edge curves
crvs = []
# Place your code below this line
#Loop through edges an append corresponding curve geometry to the list
for edge in solid.Edges:
crvs.append(edge.CurveGeometry)
#Get the bounding box of the curves
bbox = BoundingBox.ByGeometry(crvs)
#Get the x and y translation distance based on the bounding box
yDist = bbox.MaxPoint.Y-bbox.MinPoint.Y
xDist = bbox.MaxPoint.X-bbox.MinPoint.X
#Get the source coordinate system
fromCoord = solid.ContextCoordinateSystem
#Loop through x and y
for i in range(xCount):
for j in range(yCount):
#Rotate and translate the coordinate system
toCoord = fromCoord.Rotate(solid.ContextCoordinateSystem.Origin, Vector.ByCoordinates(0,0,1), (90*(i+j%seed)))
vec = Vector.ByCoordinates((xDist*i),(yDist*j),0)
toCoord = toCoord.Translate(vec)
#Transform the solid from the source coord syste, to the target coord system and append to the list
solids.append(solid.Transform(fromCoord,toCoord))
# Assign your output to the OUT variable.
OUT = solids
