SRID and Name relationship

PostGIS comes with a table of spatial reference systems with each one being identitfied by a SRID. However, from a user's perspective, SRID is just a number and doesn't tell them much. Is there a resource that associates SRID with more descriptive names?

edited Jan 27 at 18:36

Vince

14.8k32749

asked Jan 27 at 17:58

user57029

624

1

...the srtext column of said table holds the OGC WKT representation with the standardized details of each CRS.

– ThingumaBob
Jan 27 at 18:14

Thanks! I had looked at that column initially and thought it had too much info. But upon looking at it again, I realize that I can just parse the text and extract the parts I need. I accepted your answer.

– user57029
Jan 27 at 23:09

add a comment |

edited Jan 27 at 18:36

Vince

14.8k32749

asked Jan 27 at 17:58

user57029

624

1

...the srtext column of said table holds the OGC WKT representation with the standardized details of each CRS.

– ThingumaBob
Jan 27 at 18:14

Thanks! I had looked at that column initially and thought it had too much info. But upon looking at it again, I realize that I can just parse the text and extract the parts I need. I accepted your answer.

– user57029
Jan 27 at 23:09

add a comment |

edited Jan 27 at 18:36

Vince

14.8k32749

asked Jan 27 at 17:58

user57029

624

coordinate-system srid

edited Jan 27 at 18:36

Vince

14.8k32749

asked Jan 27 at 17:58

user57029

624

edited Jan 27 at 18:36

Vince

14.8k32749

asked Jan 27 at 17:58

user57029

624

edited Jan 27 at 18:36

Vince

14.8k32749

edited Jan 27 at 18:36

Vince

14.8k32749

edited Jan 27 at 18:36

Vince

14.8k32749

asked Jan 27 at 17:58

user57029

624

asked Jan 27 at 17:58

user57029

624

asked Jan 27 at 17:58

user57029

624

1

...the srtext column of said table holds the OGC WKT representation with the standardized details of each CRS.

– ThingumaBob
Jan 27 at 18:14

Thanks! I had looked at that column initially and thought it had too much info. But upon looking at it again, I realize that I can just parse the text and extract the parts I need. I accepted your answer.

– user57029
Jan 27 at 23:09

add a comment |

1

...the srtext column of said table holds the OGC WKT representation with the standardized details of each CRS.

– ThingumaBob
Jan 27 at 18:14

Thanks! I had looked at that column initially and thought it had too much info. But upon looking at it again, I realize that I can just parse the text and extract the parts I need. I accepted your answer.

– user57029
Jan 27 at 23:09

...the srtext column of said table holds the OGC WKT representation with the standardized details of each CRS.

– ThingumaBob
Jan 27 at 18:14

Thanks! I had looked at that column initially and thought it had too much info. But upon looking at it again, I realize that I can just parse the text and extract the parts I need. I accepted your answer.

– user57029
Jan 27 at 23:09

add a comment |

3 Answers
3

active

oldest

votes

If you want/need to have more info from within PostGIS, running something like

SELECT  srid,

        left(split_part(srtext, '"', 1), -1) AS "type",

        split_part(srtext, '"', 2) AS "name",

        split_part((regexp_split_to_array(srtext, 'UNIT["'))[array_length(regexp_split_to_array(srtext, 'UNIT["'), 1)], '"', 1) AS units

FROM    spatial_ref_sys

WHERE   srid IN (4326, 32632);

results in

 srid  |  type  |         name          | units  

-------+--------+-----------------------+--------

  4326 | GEOGCS | WGS 84                | degree

 32632 | PROJCS | WGS 84 / UTM zone 32N | metre

I never wanted to learn regexp logic any better than this. Obviously, you could scan the whole WKT string for anything you need to know. And improve on the above, especially the units expression...

Alternatively, query the spatial_ref_sys.srtext or spatial_ref_sys.proj4text columns to get either the whole OGC WKT representation or the proj4 definition of each SRID.

answered Jan 27 at 22:24

ThingumaBob

6,3251424

add a comment |

A good modern web resource is epsg.io

It's "modern" because it has been synchronized to recent versions of the EPSG reference database, as stated at the bottom of the web page. It's source is available on GitHub.

It's also pretty easy to use. For example, SRID=4326, here is the description web page and links to various formats:

http://epsg.io/4326

http://epsg.io/4326.wkt

http://epsg.io/4326.esriwkt

http://epsg.io/4326.gml

http://epsg.io/4326.proj4

http://epsg.io/4326.sql

answered Jan 27 at 22:44

Mike T

32k685131

add a comment |

I use http://spatialreference.org and http://www.epsg-registry.org.

spatialreference.org has the spatial reference information in numerous formats:

enter image description here

And EPSG has an access database you download:

enter image description here

edited Jan 27 at 21:50

answered Jan 27 at 18:14

Jay Cummins

10.5k544104

3

Note that spatialreference.org was last updated in 2013, and was made from an older/outdated version of the EPSG database. The webpage was abandoned, and there are no plans to update it.

– Mike T
Jan 27 at 22:45

Didn't realise that. Who owns the domain and runs the site?

– Jay Cummins
Jan 27 at 22:59

1

@JayCummins see about for who set it up. They are excellent folks in the opensource geospatial community, and are happy for anyone to take the keys and catch up to the modern world

– Mike T
Jan 27 at 23:49

add a comment |

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3 Answers
3

active

oldest

votes

3 Answers
3

active

oldest

votes

If you want/need to have more info from within PostGIS, running something like

SELECT  srid,

        left(split_part(srtext, '"', 1), -1) AS "type",

        split_part(srtext, '"', 2) AS "name",

        split_part((regexp_split_to_array(srtext, 'UNIT["'))[array_length(regexp_split_to_array(srtext, 'UNIT["'), 1)], '"', 1) AS units

FROM    spatial_ref_sys

WHERE   srid IN (4326, 32632);

results in

 srid  |  type  |         name          | units  

-------+--------+-----------------------+--------

  4326 | GEOGCS | WGS 84                | degree

 32632 | PROJCS | WGS 84 / UTM zone 32N | metre

Alternatively, query the spatial_ref_sys.srtext or spatial_ref_sys.proj4text columns to get either the whole OGC WKT representation or the proj4 definition of each SRID.

answered Jan 27 at 22:24

ThingumaBob

6,3251424

add a comment |

If you want/need to have more info from within PostGIS, running something like

SELECT  srid,

        left(split_part(srtext, '"', 1), -1) AS "type",

        split_part(srtext, '"', 2) AS "name",

        split_part((regexp_split_to_array(srtext, 'UNIT["'))[array_length(regexp_split_to_array(srtext, 'UNIT["'), 1)], '"', 1) AS units

FROM    spatial_ref_sys

WHERE   srid IN (4326, 32632);

results in

 srid  |  type  |         name          | units  

-------+--------+-----------------------+--------

  4326 | GEOGCS | WGS 84                | degree

 32632 | PROJCS | WGS 84 / UTM zone 32N | metre

Alternatively, query the spatial_ref_sys.srtext or spatial_ref_sys.proj4text columns to get either the whole OGC WKT representation or the proj4 definition of each SRID.

answered Jan 27 at 22:24

ThingumaBob

6,3251424

add a comment |

If you want/need to have more info from within PostGIS, running something like

SELECT  srid,

        left(split_part(srtext, '"', 1), -1) AS "type",

        split_part(srtext, '"', 2) AS "name",

        split_part((regexp_split_to_array(srtext, 'UNIT["'))[array_length(regexp_split_to_array(srtext, 'UNIT["'), 1)], '"', 1) AS units

FROM    spatial_ref_sys

WHERE   srid IN (4326, 32632);

results in

 srid  |  type  |         name          | units  

-------+--------+-----------------------+--------

  4326 | GEOGCS | WGS 84                | degree

 32632 | PROJCS | WGS 84 / UTM zone 32N | metre

Alternatively, query the spatial_ref_sys.srtext or spatial_ref_sys.proj4text columns to get either the whole OGC WKT representation or the proj4 definition of each SRID.

answered Jan 27 at 22:24

ThingumaBob

6,3251424

If you want/need to have more info from within PostGIS, running something like

SELECT  srid,

        left(split_part(srtext, '"', 1), -1) AS "type",

        split_part(srtext, '"', 2) AS "name",

        split_part((regexp_split_to_array(srtext, 'UNIT["'))[array_length(regexp_split_to_array(srtext, 'UNIT["'), 1)], '"', 1) AS units

FROM    spatial_ref_sys

WHERE   srid IN (4326, 32632);

results in

 srid  |  type  |         name          | units  

-------+--------+-----------------------+--------

  4326 | GEOGCS | WGS 84                | degree

 32632 | PROJCS | WGS 84 / UTM zone 32N | metre

Alternatively, query the spatial_ref_sys.srtext or spatial_ref_sys.proj4text columns to get either the whole OGC WKT representation or the proj4 definition of each SRID.

answered Jan 27 at 22:24

ThingumaBob

6,3251424

answered Jan 27 at 22:24

ThingumaBob

6,3251424

answered Jan 27 at 22:24

ThingumaBob

6,3251424

answered Jan 27 at 22:24

ThingumaBob

6,3251424

add a comment |

A good modern web resource is epsg.io

It's "modern" because it has been synchronized to recent versions of the EPSG reference database, as stated at the bottom of the web page. It's source is available on GitHub.

It's also pretty easy to use. For example, SRID=4326, here is the description web page and links to various formats:

http://epsg.io/4326

http://epsg.io/4326.wkt

http://epsg.io/4326.esriwkt

http://epsg.io/4326.gml

http://epsg.io/4326.proj4

http://epsg.io/4326.sql

answered Jan 27 at 22:44

Mike T

32k685131

add a comment |

A good modern web resource is epsg.io

It's "modern" because it has been synchronized to recent versions of the EPSG reference database, as stated at the bottom of the web page. It's source is available on GitHub.

It's also pretty easy to use. For example, SRID=4326, here is the description web page and links to various formats:

http://epsg.io/4326

http://epsg.io/4326.wkt

http://epsg.io/4326.esriwkt

http://epsg.io/4326.gml

http://epsg.io/4326.proj4

http://epsg.io/4326.sql

answered Jan 27 at 22:44

Mike T

32k685131

add a comment |

A good modern web resource is epsg.io

It's "modern" because it has been synchronized to recent versions of the EPSG reference database, as stated at the bottom of the web page. It's source is available on GitHub.

It's also pretty easy to use. For example, SRID=4326, here is the description web page and links to various formats:

http://epsg.io/4326

http://epsg.io/4326.wkt

http://epsg.io/4326.esriwkt

http://epsg.io/4326.gml

http://epsg.io/4326.proj4

http://epsg.io/4326.sql

answered Jan 27 at 22:44

Mike T

32k685131

A good modern web resource is epsg.io

It's "modern" because it has been synchronized to recent versions of the EPSG reference database, as stated at the bottom of the web page. It's source is available on GitHub.

It's also pretty easy to use. For example, SRID=4326, here is the description web page and links to various formats:

http://epsg.io/4326

http://epsg.io/4326.wkt

http://epsg.io/4326.esriwkt

http://epsg.io/4326.gml

http://epsg.io/4326.proj4

http://epsg.io/4326.sql

answered Jan 27 at 22:44

Mike T

32k685131

answered Jan 27 at 22:44

Mike T

32k685131

answered Jan 27 at 22:44

Mike T

32k685131

answered Jan 27 at 22:44

Mike T

32k685131

add a comment |

I use http://spatialreference.org and http://www.epsg-registry.org.

spatialreference.org has the spatial reference information in numerous formats:

enter image description here

And EPSG has an access database you download:

enter image description here

edited Jan 27 at 21:50

answered Jan 27 at 18:14

Jay Cummins

10.5k544104

3

Note that spatialreference.org was last updated in 2013, and was made from an older/outdated version of the EPSG database. The webpage was abandoned, and there are no plans to update it.

– Mike T
Jan 27 at 22:45

Didn't realise that. Who owns the domain and runs the site?

– Jay Cummins
Jan 27 at 22:59

1

@JayCummins see about for who set it up. They are excellent folks in the opensource geospatial community, and are happy for anyone to take the keys and catch up to the modern world

– Mike T
Jan 27 at 23:49

add a comment |

I use http://spatialreference.org and http://www.epsg-registry.org.

spatialreference.org has the spatial reference information in numerous formats:

enter image description here

And EPSG has an access database you download:

enter image description here

edited Jan 27 at 21:50

answered Jan 27 at 18:14

Jay Cummins

10.5k544104

3

Note that spatialreference.org was last updated in 2013, and was made from an older/outdated version of the EPSG database. The webpage was abandoned, and there are no plans to update it.

– Mike T
Jan 27 at 22:45

Didn't realise that. Who owns the domain and runs the site?

– Jay Cummins
Jan 27 at 22:59

1

@JayCummins see about for who set it up. They are excellent folks in the opensource geospatial community, and are happy for anyone to take the keys and catch up to the modern world

– Mike T
Jan 27 at 23:49

add a comment |

I use http://spatialreference.org and http://www.epsg-registry.org.

spatialreference.org has the spatial reference information in numerous formats:

enter image description here

And EPSG has an access database you download:

enter image description here

edited Jan 27 at 21:50

answered Jan 27 at 18:14

Jay Cummins

10.5k544104

I use http://spatialreference.org and http://www.epsg-registry.org.

spatialreference.org has the spatial reference information in numerous formats:

enter image description here

And EPSG has an access database you download:

enter image description here

edited Jan 27 at 21:50

answered Jan 27 at 18:14

Jay Cummins

10.5k544104

edited Jan 27 at 21:50

answered Jan 27 at 18:14

Jay Cummins

10.5k544104

answered Jan 27 at 18:14

Jay Cummins

10.5k544104

answered Jan 27 at 18:14

Jay Cummins

10.5k544104

3

Note that spatialreference.org was last updated in 2013, and was made from an older/outdated version of the EPSG database. The webpage was abandoned, and there are no plans to update it.

– Mike T
Jan 27 at 22:45

Didn't realise that. Who owns the domain and runs the site?

– Jay Cummins
Jan 27 at 22:59

1

@JayCummins see about for who set it up. They are excellent folks in the opensource geospatial community, and are happy for anyone to take the keys and catch up to the modern world

– Mike T
Jan 27 at 23:49

add a comment |

3

Note that spatialreference.org was last updated in 2013, and was made from an older/outdated version of the EPSG database. The webpage was abandoned, and there are no plans to update it.

– Mike T
Jan 27 at 22:45

Didn't realise that. Who owns the domain and runs the site?

– Jay Cummins
Jan 27 at 22:59

1

@JayCummins see about for who set it up. They are excellent folks in the opensource geospatial community, and are happy for anyone to take the keys and catch up to the modern world

– Mike T
Jan 27 at 23:49

Note that spatialreference.org was last updated in 2013, and was made from an older/outdated version of the EPSG database. The webpage was abandoned, and there are no plans to update it.

– Mike T
Jan 27 at 22:45

Didn't realise that. Who owns the domain and runs the site?

– Jay Cummins
Jan 27 at 22:59

@JayCummins see about for who set it up. They are excellent folks in the opensource geospatial community, and are happy for anyone to take the keys and catch up to the modern world

– Mike T
Jan 27 at 23:49

add a comment |

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