This is the sixth in-class practice saving created objects into files and then importing the file back using file functions in Rhinoceros.

Here is the Python Code for creating random points:

import rhinoscriptsyntax as rs
import random


rs.DeleteObjects (rs.AllObjects ())


nrPoints = rs.GetInteger ("Number of points")
cubeSize = 10


rs.EnableRedraw (False)


for i in range (0, nrPoints):
    x = random.uniform (0, cubeSize)
    y = random.uniform (0, cubeSize)
    z = random.uniform (0, cubeSize)
    point = rs.AddPoint (x, y, z)
    
    #we can assign specific colors to rgb by giving the exact number. e.g.(for red, r=255,g=0,b=0)
    r = random.randint (0, 255)
    g = random.randint (0, 255)
    b = random.randint (0, 255)
    rs.ObjectColor (point, (r, g, b))


rs.EnableRedraw (True)

Here is the Python Code for saving the created points into a file:

import rhinoscriptsyntax as rs

points = rs.GetObjects ("Please select points")

#get gilename and location from user
#saved this to file named "savedfile", and the file has a list of coordinates
filename = rs.SaveFileName ()

#opening the file for access
myfile = open(filename,"w")

for point in points:
    coord = rs.PointCoordinates (point)
    x = coord[0]
    y = coord[1]
    z = coord[2]
    
    
    #r = rs.ObjectColor (point)[0]
    #g = rs.ObjectColor (point)[1]
    #b = rs.ObjectColor (point)[2]
    
    #print (str(x) + "," + str(y) + "," + str(z))
    
    #below means what is x/y/z is replaced by %.2f/%.2f/%.2f, .2 makes the printed coordinates only show 2 digits
    #print ("coord X: %.2f, coord Y: %.2f, coord Z: %.2f" %(x,y,z))
    
    
    color = rs.ObjectColor (point)
    print color
    r = color.R
    g = color.G
    b = color.B
    
    #print (str(x) + "," + str(y) + "," + str(z))
    

    newLine = ("%.2f,%.2f,%.2f,%d,%d,%d\n" %(x,y,z,r,g,b))
    myfile.write(newLine)
    
    
myfile.close()

Here is the Python Code for importing the saved file back:

import rhinoscriptsyntax as rs

rs.DeleteObjects (rs.AllObjects ())

filename = rs.OpenFileName ()

#open the saved file
file = open (filename, "r")

text = file.readlines ()

file.close()

#above process was running at background, so we print it to see if it is working
#for line in text:
    #normalLine = line.strip()
    #print normalLine
    

#it will read the file and bring the values(x,y,z)(r,g,b) in
for line in text:
    normalLine = line.strip()
    values = line.split(",")
    
    x = values[0]
    y = values[1]
    z = values[2]
    
    #we need to cast the rgb into integer
    r = int(values[3])
    g = int(values[4])
    b = int(values[5])
    
    coord = (x,y,z)
    color = (r,g,b)
    
    point = rs.AddPoint (coord)
    rs.ObjectColor (point, color)
    
    #coord = (values[0], values[1], values[2])
    #coord = (values[0], values[1], values[2])
    
    #print coord