import os
import random
import struct

from OCC.Core.Graphic3d import Graphic3d_ArrayOfPoints
from OCC.Core.AIS import AIS_PointCloud
from OCC.Core.Quantity import Quantity_Color, Quantity_TOC_RGB
from OCC.Core.gp import gp_Pnt
import math
from OCC.Display.SimpleGui import init_display
display, start_display, add_menu, add_function_to_menu = init_display()
from  math import sin,cos
def random_points(event=None):
    n_points = 500
    # first, create a set of 1000 points
    points_3d = Graphic3d_ArrayOfPoints(n_points)
    for idx in range(n_points):
       
        x = 2*sin(idx+2)
       
        y = sin(2*idx)
       
        z = random.uniform(-50, 50)
        points_3d.AddVertex(x, y, z)

    # then build the point cloud
    point_cloud = AIS_PointCloud()
    point_cloud.SetPoints(points_3d)

    # display
    ais_context = display.GetContext()
    ais_context.Display(point_cloud, True)
    display.View_Iso()
    display.FitAll()