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From desruisse...@apache.org
Subject svn commit: r1877094 - /sis/ip-review/CassiniSoldner.html
Date Mon, 27 Apr 2020 21:18:11 GMT
Author: desruisseaux
Date: Mon Apr 27 21:18:11 2020
New Revision: 1877094

URL: http://svn.apache.org/viewvc?rev=1877094&view=rev
Log:
Provide IP-review for Cassini-Soldner projection.

Added:
    sis/ip-review/CassiniSoldner.html

Added: sis/ip-review/CassiniSoldner.html
URL: http://svn.apache.org/viewvc/sis/ip-review/CassiniSoldner.html?rev=1877094&view=auto
==============================================================================
--- sis/ip-review/CassiniSoldner.html (added)
+++ sis/ip-review/CassiniSoldner.html Mon Apr 27 21:18:11 2020
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <meta charset="UTF-8"/>
+    <title>CassiniSoldner history</title>
+    <style type="text/css" media="all">
+      @import url("./reports.css");
+    </style>
+  </head>
+  <body>
+    <div>
+      <h1>CassiniSoldner history</h1>
+      <p>
+        This projection did not existed in GeoTools 2, which was the version at the time
the code has been forked.
+        The Cassini-Soldner projection has been added in a later GeoTools version and ported
to Geotk project,
+        but not to Apache SIS. For Apache SIS the projection has been rewritten from scratch
using:
+      </p>
+
+      <blockquote>
+          IOGP Publication 373-7-2. Geomatics Guidance Note number 7, part 2.<br/>
+          <u>Coordinate Conversions and Transformations including Formulas.</u><br/>
+          Revised September 2019.<br/>
+          §3.2.2 <u>Cassini-Soldner</u>
+      </blockquote>
+
+      <p>
+        Initial implementation in Apache SIS is a direct, non-optimized implementation with
almost verbatim
+        copy of above formulas (those formulas are themselves copy of other publications,
the oldest ones
+        taking their origin two centuries ago). This initial implementation can be seen at
commit
+        <a href="https://github.com/apache/sis/commit/b44873a08fd4c02c8092d97c9ab9d8d9964218c4"><code>b44873a08fd4c02c8092d97c9ab9d8d9964218c4</code></a>.
+      </p>
+    </div>
+  </body>
+</html>



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