Hi, I have three locations defined, one in Geographic 'projection', one UTM and the other described below. When I try to reproject data, e.g. a vector rectangle from either Geographic or UTM to the Oblique Mercator projection defined below, the rectangle isn't rotated as I expect. The origin of the projected coordinates looks to be in the correct location but there is no rotation applied (geographic north is supposed to ~45 deg from the y axis). BTW, is it even possible to display a geodetic grid for a non-rectified projection?
output from g.proj -p: -PROJ_INFO------------------------------------------------- name : Oblique Mercator proj : omerc a : 6378137 es : 0.006694379990141316 lat_0 : 53.25 lonc : -5.7 alpha : -88 k : 1 x_0 : 0 y_0 : 0 towgs84 : 0,0,0,0,0,0,0 no_defs : defined -PROJ_UNITS------------------------------------------------ unit : meter units : meters meters : 1 The command I used to specify the oblique projection is: proj +proj=omerc +ellps=WGS84 +k_0=1.0 +lat_0=53.25 +no_uoff +rot_conv +alpha=-88 +lonc=-5.7 I must emphasize that I have checked the proj.4 parameters using the command-line proj.4 and the *parameters are correct*. I applied these parameters in GlobalMapper to get the final map to the state that I would like eventually in GRASS. Any advice would be *greatly* appreciated, I have spent a lot of time on this. Regards, Garret
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