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Merge pull request #10 from huolongshe/dev008
增加天地图
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| #!/usr/bin/env python | ||
| # -*- coding: UTF-8 -*- | ||
| import json | ||
| import requests | ||
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| def find_drive_route(start, end): | ||
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| url = 'http://api.tianditu.gov.cn/drive?postStr={"orig":"%.06f,%.06f","dest":"%.06f,%.06f","style":"1"}&type=search&tk=c8e0b9ae169804fa3d0dbdcc04017804' % (start[0], start[1], end[0], end[1]) | ||
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| try: | ||
| res = requests.get(url) | ||
| except: | ||
| return [] | ||
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| if res.status_code != 200: | ||
| return [] | ||
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| text = res.text | ||
| route = [] | ||
| while text.find('<streetLatLon>') >= 0: | ||
| points = text[text.find('<streetLatLon>') + 14: text.find('</streetLatLon>') - 1].split(';') | ||
| for point in points: | ||
| tmp = point.split(',') | ||
| route.append([float(tmp[0]), float(tmp[1])]) | ||
| text = text[text.find('</streetLatLon>') + 15:] | ||
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| if len(route) > 0: | ||
| return [route] | ||
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| return [] | ||
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| def decode_points(encoded): | ||
| points = [] | ||
| index = 0 | ||
| length = len(encoded) | ||
| lon_e5 = 0 | ||
| lat_e5 = 0 | ||
| while index < length: | ||
| shift = 0 | ||
| result = 0 | ||
| while 1: | ||
| b = ord(encoded[index]) - 63 | ||
| index += 1 | ||
| result |= (b & 0x1f) << shift | ||
| shift += 5 | ||
| if b < 0x20: | ||
| break | ||
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| dlat = ~(result >> 1) if result & 1 else result >> 1 | ||
| lat_e5 += dlat | ||
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| shift = 0 | ||
| result = 0 | ||
| while 1: | ||
| b = ord(encoded[index]) - 63 | ||
| index += 1 | ||
| result |= (b & 0x1f) << shift | ||
| shift += 5 | ||
| if b < 0x20: | ||
| break | ||
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| dlon = ~(result >> 1) if result & 1 else result >> 1 | ||
| lon_e5 += dlon | ||
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| lon = float(lon_e5) / 100000.0 | ||
| lat = float(lat_e5) / 100000.0 | ||
| points.append([lon, lat]) | ||
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| return points | ||
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