Hello,
I'm using gdaltransform to transform points from one datum to WGS84. In version
2.2.3 and 2.4.0 of GDAL, when I convert a point I receive a transformed
latitude, longitude, and a new height value. In versions 2.4.1 and 3.0.1, when
I convert a point I receive a transformed latitude and longitude but height
always equals 0. Attached are examples of the height value issue. Is this a
GDAL error, or am I doing something wrong?
Thank you,
Kathleen
cs2cs +proj=latlong +ellps=intl +towgs84=306,304,-318 +to +proj=latlong
+datum=WGS84
-85-10
84d59'49.121"W 10d0'10.74"S 31.513
-77-10
76d59'47.965"W 10d0'10.464"S 79.573
-69-10
68d59'47.043"W 10d0'10.163"S 131.992
-61-10
60d59'46.373"W 10d0'9.843"S 187.748
-85-3.5
84d59'49.265"W 3d30'10.521"S -5.568
-77-3.5
76d59'48.124"W 3d30'10.424"S 43.143
-69-3.5
68d59'47.215"W 3d30'10.318"S 96.271
-61-3.5
60d59'46.554"W 3d30'10.206"S 152.782
-85 3
84d59'49.27"W 2d59'49.822"N -41.671
-77 3
76d59'48.13"W 2d59'49.739"N 7.064
-69 3
68d59'47.221"W 2d59'49.648"N 60.219
-61 3
60d59'46.561"W 2d59'49.552"N 116.758
-85 9.5
84d59'49.137"W 9d29'50.31"N -76.336
-77 9.5
76d59'47.983"W 9d29'50.048"N -28.203
-69 9.5
68d59'47.062"W 9d29'49.762"N 24.295
-61 9.5
60d59'46.394"W 9d29'49.458"N 80.135
-85 16
84d59'48.856"W 15d59'50.961"N -109.033
-77 16
76d59'47.672"W 15d59'50.523"N -62.121
-69 16
68d59'46.728"W 15d59'50.046"N -10.955
-61 16
60d59'46.042"W 15d59'49.539"N 43.469
cs2cs +proj=latlong +ellps=intl +towgs84=306,304,-318 +to +proj=latlong
+datum=WGS84
-85 -10
84d59'49.121"W 10d0'10.74"S 0.000
-77 -10
76d59'47.965"W 10d0'10.464"S 0.000
-69 -10
68d59'47.043"W 10d0'10.163"S 0.000
-61 -10
60d59'46.373"W 10d0'9.843"S 0.000
-85 -3.5
84d59'49.265"W 3d30'10.521"S 0.000
-77 -3.5
76d59'48.124"W 3d30'10.424"S 0.000
-69 -3.5
68d59'47.215"W 3d30'10.318"S 0.000
-61 -3.5
60d59'46.554"W 3d30'10.206"S 0.000
-85 3
84d59'49.27"W 2d59'49.822"N 0.000
-77 3
76d59'48.13"W 2d59'49.739"N 0.000
-69 3
68d59'47.221"W 2d59'49.648"N 0.000
-61 3
60d59'46.561"W 2d59'49.552"N 0.000
-85 9.5
84d59'49.137"W 9d29'50.31"N 0.000
-77 9.5
76d59'47.983"W 9d29'50.048"N 0.000
-69 9.5
68d59'47.062"W 9d29'49.762"N 0.000
-61 9.5
60d59'46.394"W 9d29'49.458"N 0.000
-85 16
84d59'48.856"W 15d59'50.961"N 0.000
-77 16
76d59'47.672"W 15d59'50.523"N 0.000
-69 16
68d59'46.728"W 15d59'50.046"N 0.000
-61 16
60d59'46.042"W 15d59'49.539"N 0.000
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