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| from panda3d.core import * | |
| from random import uniform | |
| import sys | |
| import bisect | |
| if sys.version_info >= (3, 3): | |
| from time import perf_counter as timer | |
| else: | |
| if sys.platform == "win32": | |
| from time import clock as timer | |
| else: | |
| from time import time as timer | |
| def nearest(data, point, threshold=0.5): | |
| minimal=None | |
| best=None | |
| for v in data: | |
| d=(v-point).length() | |
| if d < threshold: | |
| return v | |
| if minimal is None: | |
| minimal = d | |
| if d <= minimal: | |
| minimal=d | |
| best=v | |
| return best | |
| #create some data | |
| data=[] | |
| for x in range(100): | |
| for y in range(100): | |
| for z in range(100): | |
| data.append(Vec3(x,y,z)) | |
| #some random point to find | |
| search_for=Vec3(uniform(0,100),uniform(0,100),uniform(0,100)) | |
| #search and time it | |
| print('Starting search...') | |
| start = timer() | |
| #I need something better for this!!! | |
| #found=sorted(data, key=lambda v: (v-search_for).length())[0] #~1.5sec | |
| found=nearest(data, search_for) #3x faster, but still ~0.5 sec | |
| end = timer() | |
| print('{0} is nearest to {1}, found in {2}'.format(found,search_for, end-start)) |
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