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zhm-real
49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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@author: huiming zhou
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"""
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import numpy as np
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col, row = 50, 30 # size of background
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motions = [(1, 0), (-1, 0), (0, 1), (0, -1)] # feasible motion sets
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def obstacles():
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"""
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Design the obstacles' positions.
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:return: the map of obstacles.
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"""
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background = [[[1., 1., 1.]
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for x in range(col)] for y in range(row)]
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for j in range(col):
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background[0][j] = [0., 0., 0.]
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background[row - 1][j] = [0., 0., 0.]
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for i in range(row):
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background[i][0] = [0., 0., 0.]
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background[i][col - 1] = [0., 0., 0.]
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for i in range(10, 20):
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background[15][i] = [0., 0., 0.]
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for i in range(15):
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background[row - 1 - i][30] = [0., 0., 0.]
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background[i + 1][20] = [0., 0., 0.]
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background[i + 1][40] = [0., 0., 0.]
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return background
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def map_obs():
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"""
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Using a matrix to represent the position of obstacles,
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which is used for obstacle detection.
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:return: a matrix, in which '1' represents obstacle.
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"""
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obs_map = np.zeros((col, row))
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pos_map = obstacles()
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for i in range(col):
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for j in range(row):
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if pos_map[j][i] == [0., 0., 0.]:
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obs_map[i][j] = 1
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return obs_map |