Top "Srid" questions

How do you know what SRID to use for a shp file?

I am trying to put a SHP file into my PostGIS database, the the data is just a little off. …

gis postgis geodjango srid

How to create a circle in meters in postgis?

I would like to ask how to create a circle with radius=4km. I have tried the ST_Buffer function …

postgis geometry srid

PostGis Distance Calculation

I am doing a indoor map navigation application right now and what I am trying to do is to build …

postgresql distance postgis srid epsg

POSTGIS: ERROR: Operation on mixed SRID geometries. Trying to find overlapping geoms with two different SRIDS/tables

POSTGIS_VERSION=2.1; I have two tables with two different SRID. My objective is to show which geoms from TABLE_B …

sql transform postgis intersect srid

ST_DWithin takes parameter as degree , not meters , why?

The ST_DWithin document says , the third parameter(distance) is in meters. But when I execute some query , it seems …

postgresql gis postgis srid

MySQL Spatial - Convert from SRID 31287 to 4326

In MySQL I have a a database with around 100 tables. They all contain a column called ´shape´, this is a …

mysql spatial srid