[postgis-users] Moving point grid

Markus Schaber schabi at logix-tt.com
Thu Jan 12 04:39:30 PST 2006


Hi, Maik,

Maik Trömel wrote:

> i want to translate a dataset with a point grid 13 km into the west and
> 13 km into the south. The problem is that the points coordinates are in
> lat/lon. How can I move them in km?

If you need it approximately, you can calcuate the "degree per km" value
for your area, and then move by this aria.

If you need exactly, use transform() to reproject it into a metric
projection.

HTH,
Schabi

-- 
Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf.     | Software Development GIS

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