Merge pull request #905 from jmckenna/spatialreference-links

jmckenna · web-flow · commit e3c9da7d9292 · 2024-05-07T08:49:25.000-03:00
point to spatialreference.org for EPSG references
diff --git a/en/glossary.txt b/en/glossary.txt
@@ -177,7 +177,7 @@
         (or more commonly known as the *Google Mercator*, or *Web Mercator*) is a 
         term used to describe the default :ref:`PROJECTION` used by many commercial 
         API providers for their resulting map tiles & services.  The associated official 
-        EPSG code is `EPSG:3857 <https://epsg.io/3857>`__ (formerly "EPSG:900913").
+        EPSG code is `EPSG:3857 <https://spatialreference.org/ref/epsg/3857/>`__ (formerly "EPSG:900913").
     
     SVG
         `Scalable Vector Graphics <https://en.wikipedia.org/wiki/Scalable_Vector_Graphics>`__ is 
diff --git a/en/input/vector/postgis.txt b/en/input/vector/postgis.txt
@@ -312,7 +312,7 @@ Next specify the *table* and *column*, with the *-nomd* switch, such as:
     gdalinfo PG:"host=127.0.0.1 port=5432 user=postgres password=postgres dbname=mydb table=lunenburg_colorhillshade column=rast" -nomd
      
 which returns a summary of the raster, including its projection 
-(`EPSG:2961 <https://epsg.io/2961>`__) :
+(`EPSG:2961 <https://spatialreference.org/ref/epsg/2961/>`__) :
 
 ::
 
diff --git a/en/mapfile/projection.txt b/en/mapfile/projection.txt
@@ -81,8 +81,8 @@ NAD83), but use 2 different methods:
 
 .. note::
 
-    See https://epsg.io/26915 for more information on
-    this coordinate system.
+    See `EPSG:26915 <https://spatialreference.org/ref/epsg/26915/>`__ 
+    for more information on this coordinate system.
 
 The next two examples both display how to possibly define unprojected 
 lat/long ("geographic"):
@@ -109,10 +109,10 @@ lat/long ("geographic"):
 -----------------------------------
 
 The EPSG code for the commonly used "Web" or "Google" mercator projection is
-'3857'.  See https://epsg.io/3857 for more information on
-this coordinate system.  This code was also unofficially referred to as 
-`EPSG:900913`; you are recommended to use the official `EPSG:3857` code 
-instead, such as:
+'3857'.  See `EPSG:3857 <https://spatialreference.org/ref/epsg/3857/>`__ 
+for more information on this coordinate system.  This code was also 
+unofficially referred to as `EPSG:900913`; you are recommended to use the 
+official `EPSG:3857` code instead, such as:
 
 .. code-block:: mapfile
 
diff --git a/en/ogc/wms_server.txt b/en/ogc/wms_server.txt
@@ -2291,8 +2291,8 @@ FAQ / Common Problems
 :Q: **How can I find the EPSG code for my data's projection?**
 
 :A: If you know some of the parameters of your data's projection, 
-    then you can use the search tool at https://epsg.io/ to find your data's 
-    associated EPSG code. The EPSG official home now also allows
+    then you can use the search tool at https://spatialreference.org to find your data's 
+    associated EPSG code. The EPSG official home also allows
     you to perform a text or map search for a projection: https://epsg.org/
     
     For `PROJ <https://proj.org/>`_ version >= 6: the EPSG codes are stored in a SpatiaLite
diff --git a/en/optimization/raster.txt b/en/optimization/raster.txt
@@ -162,7 +162,7 @@ MrSID raster: ::
     Upper Right values) to paste into your
     mapfile's EXTENT parameter.  You can also notice in that summary
     the *PROJCS/AUTHORITY* line, which states that this data is currently
-    in the `EPSG:26915 <http://epsg.io/26915>`__ projection. 
+    in the `EPSG:26915 <https://spatialreference.org/ref/epsg/26915/>`__ projection. 
 
 .. NOTE::
     For Windows users, `MS4W <https://ms4w.com>`__ includes the gdalinfo utility, 
diff --git a/en/optimization/vector.txt b/en/optimization/vector.txt
@@ -139,7 +139,7 @@ Then get a summary of the 'popplace' table through ogrinfo: ::
     You can use the extent values returned from ogrinfo, to paste into your
     mapfile's EXTENT parameter.  You can also notice in that summary
     the *PROJCS/AUTHORITY* line, which states that this data is currently
-    in the `EPSG:3978 <http://epsg.io/3978>`__ projection. 
+    in the `EPSG:3978 <https://spatialreference.org/ref/epsg/3978/>`__ projection. 
 
 Learn & Review the various OGR utilities to manage your vectors
 ---------------------------------------------------------------
@@ -159,7 +159,7 @@ renames the new table to 'roadways') : ::
     
 You might also import a spatial file, and reproject it to another EPSG
 projection, as the following (that takes a shapefile, reprojects it into 
-the web mercator `EPSG:3857 <http://epsg.io/3857>`__, imports it into an 
+the web mercator `EPSG:3857 <https://spatialreference.org/ref/epsg/3857/>`__, imports it into an 
 existing PostGIS database, and renames the new table to 'roadways3857') : 
 ::
 
diff --git a/en/output/tile_mode.txt b/en/output/tile_mode.txt
@@ -62,7 +62,7 @@ you will have to ensure each LAYER has a valid PROJECTION block.
 .. note::
     The MAP-level projection in the mapfile is not required for *mode=tile* 
     as the output projection will always be set to the Google 
-    Mercator projection `EPSG:3857 <http://epsg.io/3857>`__ and its extents,
+    Mercator projection `EPSG:3857 <https://spatialreference.org/ref/epsg/3857/>`__ and its extents,
     for mode=tile (in other words, the Google Mercator projection is hard-coded in
     the underlying MapServer source code, always for the mode=tile case). 
     If your mapfile is also serving through an OGC service, 
@@ -157,7 +157,7 @@ About Spherical Mercator
 :term:`Spherical Mercator` (also called the "web mercator" or "google mercator") 
 is a world projection that all the major tile-based map interfaces (Google Maps, 
 Bing Maps [formerly "Virtual Earth"], Yahoo Maps, OpenLayers) use to address tiles.
-The associated official EPSG code is `EPSG:3857 <http://epsg.io/3857>`__.
+The associated official EPSG code is `EPSG:3857 <https://spatialreference.org/ref/epsg/3857/>`__.
 
 A spherical mercator set of tiles has the following properties:
 
diff --git a/en/tutorial/example1-6.txt b/en/tutorial/example1-6.txt
@@ -84,7 +84,7 @@ you want to learn more about EPSG codes, have a look at
 
 .. note::
 
-    You can search for EPSG codes and see MapServer usage examples at `<https://epsg.io/>`_ 
+    You can search for EPSG codes and see MapServer usage examples at `<https://spatialreference.org/>`_ 
 
 Also, check out the EPSG web site at `<https://epsg.org>`_.
 
