Commit Graph

6 Commits

Author SHA1 Message Date
Tom Lane
1b7f214071 Refer to ll_to_earth() function by its actual name. 2004-10-04 22:52:47 +00:00
Tom Lane
2cdace962b Remove incorrect remark about having to restart backend to load a new
version of a shared library.
2003-12-27 18:20:18 +00:00
Bruce Momjian
9ccaaf676f The attached patches change earthdistance to use the new cube functions
in one of the earth functions so that latitude and longitude to
cartesian coordinates conversion will be more accurrate. (Previously
a text string was built to provide as input which limited the accuracy
to the number of digits printed.)

The new functions were included in a recent patch to contrib/cube that has not
as yet been accepted as of yet.

I also added check constraints to the domain 'earth' since they are now
working in 7.4.

Bruno Wolff III
2003-02-13 05:31:06 +00:00
Bruce Momjian
4c1383efd1 The attached patch defines functions for getting distances between
points on the surface of the earth and locating points within a
specified distance using an index based on the contrib/cube package. The
new functions are all of language type sql. A couple of bugs in the old
earthdistance function based on the point datatype are fixed. A
regression test has been added for both sets of functions. The README
file has been updated to include documentation on the new stuff. There
are comments about how this package is also useful for Astronomers.

Bruno Wolff III
2002-11-08 20:20:22 +00:00
Bruce Momjian
24bebf0b72 I have included fixes to declare some floating point constants as double
instead of int, change the calculation method to use the haversine
formula
which is more accurrate for short distances, added a grant to public for
geo_distance and added a regression test.

I will resubmit the earth distance stuff based on cube after 7.3 is
released.

Bruno Wolff III
2002-09-20 03:47:22 +00:00
Bruce Momjian
bad9ce7099 Add missing /contrib files 2000-06-19 14:02:16 +00:00