Hello guys, I would like to plot a gravity map using oblique projection and would like to show the annotation of X axis as latitude. But the annotation of X axis always shows longitude (see attached figure please). How could I change that? It worked well when I used GMT6.0. Now I am using GMT6.5. M…

explicitly specifying --MAP_ANNOT_OBLIQUE=anywhere seems solving the map frame annotation placement issue in gmt 6.5.0: gmt basemap -JOb168/51/172/32.5/14c -R-500/2300/-400/400+uk -BeNsW -Bxa5f1 -Bya5f1 -png quick --MAP_FRAME_TYPE=plain --MAP_ANNOT_OBLIQUE=anywhere [quick] the documentation says…

Please share script. If it worked with 6.0 it should work with 6.5 as well.

Hi Andreas, thanks. I used: gmt grdimage Gravity.grd -CGravity.cpt -JOb168/51/172/32.5/14c -R-500/2300/-400/400+uk -BeNsW -Bxa5f1 -Bya5f1

Hello @GEOS , as already mentioned your code example can not be reproduced as we do not have your gravity data and cpt. Thus, I am using the Earth relief data from the GMT remote datasets in my examples. I am not sure if I get your questions correctly, but for me it sounds like the map should be ro…

Hi @Joaquim , Thanks. I plotted the required map using GMT6.0, but I could not construct it using GMT6.5. So I posted it in case it is a bug.

Hello @yvonnefroehlich , Many thanks for you suggestion.

+v kind of makes the frame working on gmt 6.5.0. Not sure this is useful, but anyway: gmt grdimage @earth_relief -JOb168/51/172/32.5/4c+v -R-500/2300/-400/400+uk \ -BeNsW -Bxa5f1 -Bya5f1 -png quick --MAP_FRAME_TYPE=plain [quick]

Dear all, I misunderstood this issue :slightly_frowning_face:. As I did not know this study area in more detail, I did not get that the annotations set by GMT are mixed up regarding the West-East and South-North directions! I thought the whole plot should be rotated and assumed the annotations to …

How to set the annotation of X axis as Latitude when I use oblique projection

Q&A

Joaquim March 26, 2024, 8:25pm 7

I’m afraid something broke in time.

gmt basemap -JOb168/51/172/32.5/14c -R-500/2300/-400/400+uk -BeNsW -Bxa5f1 -Bya5f1 -png lixo

GMT6.1

GMT6.2

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How to set the annotation of X axis as Latitude when I use oblique projection

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