HI,
I have a base map of lagos, Nigeria that contains roads, streets and points of
interest (POI). Unfortunately the street addresses are not geocoded. I was told
they are possible ways to geocode such kind of data e.g. geocode to a street
name, geocode to a street intersection and/or point of interest.
I will like to ask what postgis functions can be used to do this kind of
operation ?
For example, If I intend geocoding to a street name, this will imply assigning
point coordinates to represent each street, to this i will need to get the
center point of each street. By their nature streets and roads are not straight.
is there a postgis function for computing the center of a Linestring ?
especially if the linestring is not straight but has a few curves. All the
roads and streets are represented as linestrings in my data.
It will be appreciated if I can get suggestions on the geocoding method to use
and how postgis can be used to implement it.
Thanks,
Smith.
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