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I have points data,

e.g. p1,p5,p3,p6,p7 are the points of road-A, while p2,p4,p8,p9 are point of road-B. In database (PostgreSQL) points are in p1,p2,p3,p4,p5,p6,p7...

How can I make a route, by identifying every next point?

As points in database are not in order of route.

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    You question is not very clear. Do you have a attribute field with the name of the road? – John Powell Jan 30 '16 at 9:02
  • Am I right in assuming that you use PostgresSQL? – wittich Jan 30 '16 at 21:01
  • Yes I have name attribute field. & I am using PostgresSQL – hfawad Feb 1 '16 at 4:47
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I used Buffer to limit out the points and then calculated bearing between buffer points(coordinates) and saved that in MySQL table. Nearest Neighbor and bearing gave me next point of road.

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