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| author | Javier Goizueta <jgoizueta@gmail.com> | 2018-04-11 17:56:08 +0200 |
|---|---|---|
| committer | Kristian Evers <kristianevers@gmail.com> | 2018-04-12 20:03:01 +0200 |
| commit | 647637f81247d341b8865d5d0eda1cad3c8cec8a (patch) | |
| tree | 5bb23f888e1e64c20df9458fbb37859e487fa1a9 /docs/source/development | |
| parent | 92168bc712d72d68b010c9d0495dccb0807a39bf (diff) | |
| download | PROJ-647637f81247d341b8865d5d0eda1cad3c8cec8a.tar.gz PROJ-647637f81247d341b8865d5d0eda1cad3c8cec8a.zip | |
Enhance the precision of Spherical Mercator projection near the equator
This uses a linear approximation of tan(x+pi/4) for better precision at small latitudes.
As a result points of latitude 0 maintain a 0 Y coordinate and 0,0 is transformed to 0,0
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