Reduce grid

hello everyone,
this is my code and my figure.

How reduce the rectangle of grid?

I want to have a small different between the rectangle…

gmt begin series_times pdf,png

gmt set GMT_THEME cookbook

gmt set FORMAT_DATE_MAP “o yy” FORMAT_TIME_PRIMARY_MAP Abbreviated

gmt set GMT_LANGUAGE IT

gmt set IO_COL_SEPARATOR=tab

gmt info C:\programs\Instance_Sicilia.csv

gmt plot C:\programs\Instance_Sicilia.csv -i3,4 -Sc0.15c -Gred -R2005-01-01T/2020-01-30T/0.0/6.5 -JX18i -Bxafg+l"Time" -Byafg+l"Magnitude" -fi0T,2d

gmt end show

I think you are seeking for the psconvert manual. Namely for the option -A

Mmm or maybe do you want to reduce the size of the figure?? Change -JX18i for a smaller number.

The rectangles (which I understand are the gridlines) are controlled by g modifier in -B

-Bafg

Gives automatic annotations, fticks and gridlines

-Bg5

Gives only gridlines every 5 unit increments

You might (or might not) also want to shift the grids. In that case -Bg5+1.5 would shift the 5 unit increments by 1.5

thanks very much…I have need this solution!
Thanks for all speech.

I have another question…
I want to do a hystogram, the same of this esample. I construct jet my hystogram but i want to illustate with this line and point…there are a comand in GMT 6.1 with this?
images

I think the solution here is

  • first plot the vertical line (from y = 0 to y = magnitude)
  • then plot a dot at y = magntiude

All this can be done with https://docs.generic-mapping-tools.org/dev/plot.html.

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thanks you!