1. hpnotiq (Jul 03, 2012 10.43):
Hi All
I am very new to programming and Rhinoscripting. I am trying to write a script/ code that divides a surface (square or rectangle) into a 3x3 grid. After which each piece will be unrolled and labelled horizontally in order. I am lost.. I really am. I am pasting what I have thus far here:
# step 1 - select the surface
# step 2 - get the domain values for the surface in U and V directions
# step 3 - ask the user to enter the number of U and V divisions s/he wants
# step 4 - those values they enter are now assigned to U and V
# step 5 - divide that range of U and V values into smaller bits based on users input (u-step)
# step 6 - draw curves using those smaller values dividing the surface
# OR EXPLODE SURFACE BASED ON THESE UV DIVISIONS
# step 7 - extract the lines from those smaller values
# step 8 - unroll surfaces horizontally
# step 9 - label
import rhinoscriptsyntax as rs
#STEP 1-
surface = rs.GetObject("Select surface to unroll", 8)
# I cannot put if not return here because it is not a function definition
#STEP 2-
uDomain = rs.SurfaceDomain(surface,0) # 0 for the U direction.
# Returns the domain of a surface object in the specified direction.
vDomain = rs.SurfaceDomain(surface,1) # 1 for the V direction
print "Domain in U direction: ", uDomain
print "Domain in V direction: ", vDomain
# rhinoscriptsyntax.GetReal ( message=None, number=None, minimum=None, maximum=None )
#STEP 3 & 4
u = rs.GetReal("Enter U value", 10) # Pauses for user input of a number.
v = rs.GetReal("Enter V value", 20)
#STEP 5A-
uStep = (uDomain[1] - uDomain[0]) / u #max-min/no. entered
vStep = (vDomain[1] - vDomain[0]) / v
print type(uStep)
print type(vStep)
#STEP 5B-
uFixed = int(uStep) # trying to convert float to integer
vFixed = int(vStep)
#uDomain = rs.SurfaceDomain(idSurface, 0) *** pg 59
#vDomain = rs.SurfaceDomain(idSurface, 1)
#uStep = (uDomain[1] - uDomain[0]) / intCount
#vStep = (vDomain[1] - vDomain[0]) / intCount
#STEP 5c- CREATE LISTS TO STORE VALUES
U_values=[] # where we will store all U values
V_values=[] # where we will store all V values
rs.EnableRedraw(False)
#begin a loop for each segment of the surface
#for i in range (uDomain[0], uDomain[1], uFixed): #from: to: step (row loop of x domain)
# for j in range (vDomain[0], vDomain[1], vFixed): # column loop for the y domain
# pt = rs.EvaluateSurface (surface, [uFixed, vFixed]) #Evaluates a surface at a U,V parameter and returns a 3D point
for i in range (uFixed):
U = uDomain[0] + (i/Nv)*(uDomain[1] - uDomain[0])
for j in range (vFixed):
V = vDomain[0] + (j/Nv)*(vDomain[1] - vDomain[0])
points[(i,j)] = rs.EvaluateSurface (surface, [uFixed, vFixed]) #gives UV coord of point -
# to evaluate a point on a surface on specific parameter
# surface closest point
# Evaluate surface
# surface normal
#EXPLODE POLYSURFACE
#Explodes, or un-joins, one more polysurface objects.
#Polysurfaces will be exploded into separate surfaces.
# UNROLL SURFACE
# rhinoscriptsyntax.UnrollSurface (surface_id, explode=False, following_geometry=None)
# rs.ExplodePolysurfaces( surface )
#if surface: rs.UnrollSurface(surface, True)
# rs.EnableRedraw (True)
