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| from copy import deepcopy | |
| class Box: | |
| def __init__(self): | |
| self.dimensions = None | |
| self.ivals = [] | |
| self.element_indexes = [] # record this box is built for what samples | |
| self.low_bound_indexes = dict() # record which samples visit the low bound for each dimension | |
| self.high_bound_indexes = dict() # record which samples visit the low bound for each dimension | |
| def build(self, dimensions, points): | |
| # a point is a tuple (index, n-dim numpy) | |
| # index = point[0] | |
| # value = point[1] | |
| piter = iter(points) | |
| self.dimensions = dimensions | |
| self.ivals = [] | |
| self.element_indexes = [] | |
| self.low_bound_indexes = dict() | |
| self.high_bound_indexes = dict() | |
| try: | |
| point = next(piter) | |
| except StopIteration: | |
| return | |
| else: | |
| self.element_indexes.append(point[0]) # update index list | |
| i = 0 | |
| for coord in point[1]: | |
| if(i >= self.dimensions): | |
| break | |
| self.ivals.append([coord, coord]) | |
| self.low_bound_indexes["n"+str(i+1)] = [point[0]] # update low bound visiting index list | |
| self.high_bound_indexes["n"+str(i+1)] = [point[0]] # update upper bound visiting index list | |
| i += 1 | |
| if(len(self.ivals) != self.dimensions): | |
| raise "IllegalArgument" | |
| while True: | |
| try: | |
| point = next(piter) | |
| except StopIteration: | |
| break | |
| else: | |
| self.element_indexes.append(point[0]) # update index list | |
| i = 0 | |
| for coord in point[1]: | |
| if(i >= self.dimensions): | |
| break | |
| ival = self.ivals[i] | |
| if(coord < ival[0]): | |
| ival[0] = coord | |
| self.low_bound_indexes["n"+str(i+1)] = [point[0]] # update the bound and its index | |
| elif(coord == ival[0]): | |
| low_index_list = self.low_bound_indexes["n"+str(i+1)] | |
| low_index_list.append(point[0]) | |
| if(coord > ival[1]): | |
| ival[1] = coord | |
| self.high_bound_indexes["n"+str(i+1)] = [point[0]] # update the bound and its index | |
| elif(coord == ival[1]): | |
| high_index_list = self.high_bound_indexes["n"+str(i+1)] | |
| high_index_list.append(point[0]) | |
| i += 1 | |
| def query(self, point): | |
| i = 0 | |
| for coord in point: | |
| if(i >= self.dimensions): | |
| break | |
| ival = self.ivals[i] | |
| if(coord < ival[0] or coord > ival[1]): | |
| return False | |
| i += 1 | |
| return True | |
| def __str__(self): | |
| return self.ivals.__str__() | |
| def boxes_query(point, boxes): | |
| for box in boxes: | |
| if len(box.ivals): | |
| if box.query(point): | |
| return True | |
| return False | |