Dear PROJ maillist,

At a the national mapping agency of the Netherlands we are responsible for 
defining the CRS of European Netherlands and the 3 islands of the Caribbean 
Netherlands. We are working on standardising the official transformations so 
these can be added to EPSG and the transformations become available in PROJ and 
other software. To perform transformations ourself, we create cct pipelines. I 
love the power cct pipelines. Unfortunately, other applications often expect a 
WKT string. For the transformations we added to EPSG, I can copy-paste the WKT 
from epsg.org. To experiment with a custom CRS, I sometimes try to create my 
own WKT strings. However, these attempts are not very successful for two 
reasons.

Firstly, it takes an annoying lot of effort get the code indented to make it 
readable (the indent plugin in notepad++ only works after using search and 
replace to add line breaks) and to keep the brackets right for valid WKT while 
editing, before I can even start to experiment with the rest of the syntax. Can 
you recommend a way to make creating WKT easier?

Secondly, I am quite confused by the different WKT examples that I find. Some 
seem to use different ways to define transformations in WKT (e.g. 
ABRIDGEDTRANSFORMATION, GEOGTRAN, COORDINATEOPERATION). Can you recommend a way 
to get started with understanding WKT? As a geodesist, I am familiar with 
transformation methods, so I only need information on how to translate between 
this theory and WKT.

Kind regards, Jochem


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