[PROJ] Syntax to change projection from UTM to TM
Ulises Ibarra
ulisesmartinibarra at gmail.com
Fri Dec 6 12:28:57 PST 2024
Hello, I would like you to please guide me with my following couple of
questions:
I have a list of coordinates in a UTM Zone 14 North projection, in the
ITRF2008 datum, I would like to change them to a Transverse Mercator
projection, in which the central meridian lon_0 coincides in longitude with
one of the points on my list, point 1: UTM(1, East=479969.231,
North=2143791.499, Elevation=2274.949) and or in geographic coordinates (1,
lat=19.388187333, lon=-99.190762728, Elevation=2274.949)
Question: Would it be correct to use the following syntax and parameters?
Because I am not getting the expected result.:
echo 480037.249 2143783.696 2271.294 | cct +proj=pipeline +step +inv
+proj=utm +zone=14 +ellps=GRS80 +k=0.9996439573 +step +proj=tmerc
+lat_0=19.388187333 +lon_0=-99.190762728 +x_0=479969.231 +y_0=2143791.499
+ellps=GRS80 +k=1
I get the output: 480037.2841 2143783.7685 2271.2940 inf
The correct result should be: 480037.3001 2143783.6901 2271.294
Best regards
Ulises
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