[PROJ] ballpark transformation ITRF2014 -> CH1903+

[Javier Jimenez Shaw]

I tried in master this transformation, and I got surprised that it is just
ballpark.

projinfo -s EPSG:9000 -t EPSG:4150 --spatial-test intersects Candidate
operations found: 1 ------------------------------------- Operation No. 1:
unknown id, Ballpark geographic offset from ITRF2014 to CH1903+, unknown
accuracy, World, has ballpark transformation PROJ string: +proj=noop


There is a transformation from ETRS89 to CH1903+ with 0.1m accuracy. Why is
not using it (nested with ITRF2014 -> ETRS89)?

projinfo -s ETRS89 -t EPSG:4150 --spatial-test intersects
Candidate operations found: 1
-------------------------------------
Operation No. 1:

INVERSE(EPSG):1647, Inverse of CH1903+ to ETRS89 (1), 0.1 m, Liechtenstein;
Switzerland.

PROJ string:
+proj=pipeline
  +step +proj=axisswap +order=2,1
  +step +proj=unitconvert +xy_in=deg +xy_out=rad
  +step +proj=push +v_3
  +step +proj=cart +ellps=GRS80
  +step +proj=helmert +x=-674.374 +y=-15.056 +z=-405.346
  +step +inv +proj=cart +ellps=bessel
  +step +proj=pop +v_3
  +step +proj=unitconvert +xy_in=rad +xy_out=deg
  +step +proj=axisswap +order=2,1

Thanks.
.___ ._ ..._ .. . ._.  .___ .. __ . _. . __..  ... .... ._ .__
Entre dos pensamientos racionales
hay infinitos pensamientos irracionales.
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