other versions
- jessie 6.4.4-1
g.transform(1grass) | Grass User's Manual | g.transform(1grass) |
NAME¶
g.transform - Computes a coordinate transformation based on the control points.KEYWORDS¶
general, transformation, GCPSYNOPSIS¶
g.transformFlags:¶
- -s
-
- -r
-
- -x
-
- --verbose
-
- --quiet
-
Parameters:¶
- group=name
-
- order=integer
-
- format=string[,string,...]
-
- coords=name
-
DESCRIPTION¶
g.transform is an utility to compute transformation based upon GCPs and output error measurements.NOTES¶
For coordinates given with the coords file option or fed from stdin, the input format is "x y" with one coordinate pair per line. The transformations are: order=1:e = [E0 E1][1].[1]
[E2 0][e] [n]
n = [N0 N1][1].[1]
[N2 0][e] [n]
e = [E0 E1 E3][1 ] [1 ]
[E2 E4 0][e ].[n ]
[E5 0 0][e²] [n²]
n = [N0 N1 N3][1 ] [1 ]
[N2 N4 0][e ].[n ]
[N5 0 0][e²] [n²]
e = [E0 E1 E3 E6][1 ] [1 ]
[E2 E4 E7 0][e ].[n ]
[E5 E8 0 0][e²] [n²]
[E9 0 0 0][e³] [n³]
n = [N0 N1 N3 N6][1 ] [1 ]
[N2 N4 N7 0][e ].[n ]
[N5 N8 0 0][e²] [n²]
[N9 0 0 0][e³] [n³]
SEE ALSO¶
i.rectifyAUTHORS¶
Brian J. BuckleyGRASS 6.4.4 |