Difference between revisions of "workshop01G3:Codefarm"
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| + | import rhinoscriptsyntax as rs | ||
| + | import random | ||
| + | import scriptcontext | ||
| + | # define a function called drawbranch | ||
| + | # the integer c in the function with a format drawbranch(a,b,c), actually, drawbranch(4,line,4) | ||
| + | # m is a parameter to avoid having to manually change | ||
| + | def drawbranch(x,line,m): | ||
| + | #introduce possibility to use 'escape' key to avoid computer crash | ||
| + | scriptcontext.escape_test() | ||
| + | #define a condition to exit from funtion drawbranch, essentially increasing the i | ||
| + | if x==0: | ||
| + | return | ||
| + | else: | ||
| + | for i in range (0,m): | ||
| + | # get start and end points of a starting curve, first curve that will be drawn | ||
| + | endpt=rs.CurveEndPoint(line) | ||
| + | srtpt=rs.CurveStartPoint(line) | ||
| + | #create a vector between the endpoint and the startpoint of the initial curve | ||
| + | vect=rs.VectorCreate(endpt,srtpt) | ||
| + | #get 3 random integer which will be used as a degree of rotation for the initial curve,these vectors will draw the branch | ||
| + | rnd=random.randint(-35,35) | ||
| + | rnd1=random.randint(-15,15) | ||
| + | rnd2=random.randint(-5,15) | ||
| + | #3D-rotate the vector with values got from random | ||
| + | vect=rs.VectorRotate(vect,rnd,[rnd1,rnd2,1]) | ||
| + | #add a point at the end of the 3D vector | ||
| + | ptadd=rs.PointAdd (endpt,vect) | ||
| + | #add a line between the endPoint of the vector and the newly added point | ||
| + | line=rs.AddLine (endpt,ptadd) | ||
| + | #INSIDE THE FOR-LOOP, WRITE A CONDITION FOR ADDING POINTS, BUT ONLY AT THE END OF THE LAST BRANCH | ||
| + | #IF YOU PROVIDE A LOW NUMBER OF ITERATIONS, IT WILL BECOME RECOGNISEABLE THAT THE CONDITION FOR DRAWING THE LAST BRANCH OF EVERY ITERATION | ||
| + | #IS WHEN X==1 AND I==THE END OF THE PROVIDED RANGE(m)-1 | ||
| + | if x==1 and i==m-1: | ||
| + | #if condition is met, add points at the end of the branch | ||
| + | e=rs.AddPoint(ptadd) | ||
| + | endPoints.append(e) | ||
| + | #calling the function THIS IS WHEN THE ACTUAL BRANCH IS DRAWN | ||
| + | drawbranch(x-1,line,m) | ||
| + | #make a list to store endPoints | ||
| + | endPoints=[] | ||
| + | #provide starting line for the future tree | ||
| + | line=rs.AddLine([0,0,0],[0,0,20]) | ||
| + | #calling the function for the chosen values | ||
| + | drawbranch(4,line,3) | ||
| + | #icluding a random seed for variation | ||
| + | rndseed=random.seed(5) | ||
| + | #adding a layer endPoints | ||
| + | rs.AddLayer("endPoints") | ||
| + | #adding PolyLine between points in endPoints | ||
| + | for pt in endPoints: | ||
| + | rs.ObjectLayer(pt,"endPoints") | ||
| + | rs.AddPolyline(endPoints, None) | ||
Revision as of 23:31, 11 September 2013
import rhinoscriptsyntax as rs import random import scriptcontext
- define a function called drawbranch
- the integer c in the function with a format drawbranch(a,b,c), actually, drawbranch(4,line,4)
- m is a parameter to avoid having to manually change
def drawbranch(x,line,m):
#introduce possibility to use 'escape' key to avoid computer crash
scriptcontext.escape_test()
#define a condition to exit from funtion drawbranch, essentially increasing the i
if x==0:
return
else:
for i in range (0,m):
# get start and end points of a starting curve, first curve that will be drawn
endpt=rs.CurveEndPoint(line)
srtpt=rs.CurveStartPoint(line)
#create a vector between the endpoint and the startpoint of the initial curve
vect=rs.VectorCreate(endpt,srtpt)
#get 3 random integer which will be used as a degree of rotation for the initial curve,these vectors will draw the branch
rnd=random.randint(-35,35)
rnd1=random.randint(-15,15)
rnd2=random.randint(-5,15)
#3D-rotate the vector with values got from random
vect=rs.VectorRotate(vect,rnd,[rnd1,rnd2,1])
#add a point at the end of the 3D vector
ptadd=rs.PointAdd (endpt,vect)
#add a line between the endPoint of the vector and the newly added point
line=rs.AddLine (endpt,ptadd)
#INSIDE THE FOR-LOOP, WRITE A CONDITION FOR ADDING POINTS, BUT ONLY AT THE END OF THE LAST BRANCH
#IF YOU PROVIDE A LOW NUMBER OF ITERATIONS, IT WILL BECOME RECOGNISEABLE THAT THE CONDITION FOR DRAWING THE LAST BRANCH OF EVERY ITERATION
#IS WHEN X==1 AND I==THE END OF THE PROVIDED RANGE(m)-1
if x==1 and i==m-1:
#if condition is met, add points at the end of the branch
e=rs.AddPoint(ptadd)
endPoints.append(e)
#calling the function THIS IS WHEN THE ACTUAL BRANCH IS DRAWN
drawbranch(x-1,line,m)
- make a list to store endPoints
endPoints=[]
- provide starting line for the future tree
line=rs.AddLine([0,0,0],[0,0,20])
- calling the function for the chosen values
drawbranch(4,line,3)
- icluding a random seed for variation
rndseed=random.seed(5)
- adding a layer endPoints
rs.AddLayer("endPoints")
- adding PolyLine between points in endPoints
for pt in endPoints:
rs.ObjectLayer(pt,"endPoints")
rs.AddPolyline(endPoints, None)
