Topiary_BruteForce_IP

import Rhino
import rhinoscriptsyntax as rs
import scriptcontext
from System.Drawing import Color
import random as rnd
import time
"""--------------------------------------------------------
RHINOSCRIPT METHODS USING PYTHON
One Time Search to find all points within specified radius
The points found inside the specified radius get sampled for closest neighbor
No Repeat Search
Search Sample = 1 Million Points
Search Radius = 500 Units
Search Space = Cube (5000,5000,5000)
--------------------------------------------------------"""
def closestSearch(pts, point):
    #function to sample point based on a search radius first then search for the closest inside that list mimic the rtree pass basically but with brute force
    ptsinRange = []#dynamic list to store points found inside initial search
    for i in range(len(pts)):
        dist = rs.Distance(pts[i],point)#find the distance from each point to the query point
        if dist < 500:
            ptsinRange.append(pts[i])#if the distance is less than 500 append that point to the ptsinRange List
    cPointIndex = rs.PointArrayClosestPoint(ptsinRange,point)#search for the closest index from that list of points in range
    cPoint = ptsinRange[cPointIndex] #find the closest point in the in range list from the index found above
    if cPoint[0] == point[0] and cPoint[1] == point[1] and cPoint[2] == point[1]:#test against the closest neighbor being you
        print "IS THE SAME"
    return cPoint,ptsinRange #return the closest neighbor and the list of points in range
def main():
    point = [5000/2,5000/2,5000/2]
    intNumPts = 1000000#specify number of sample points
    pts = []#store the random points in an empty list
    for x in range(0,intNumPts):
        randomPt = [rnd.random()*5000,rnd.random()*5000,rnd.random()*5000] #randomly place each point inside the 5k x 5k x 5k cube
        pts.append(randomPt)#append each random point to the pts list
    timeStart = time.time()#Start timer
    data = closestSearch(pts, point)#call closestsearch function Pass query pt and list of points to search
    print "ClosestPoint = {}".format(data[0])#print the closest neighbor
    print "Number of Pts in Range = {}".format(len(data[1]))#print how many points were captures inside the search radius
    timeEnd = time.time()#stop the timer
    print "time taken: {}".format(timeEnd - timeStart)#print the amount of time the calculations took
main()
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