Pscoast -p in classic mode produces irrational plot

Q&A
1

I’m trying to figure out how to get pscoast to plot in 3d perspective mode. What I get makes no sense at all to me - the b flag boundary looks fine (i.e. the lat lon numbers are in the correct plane) but then the boundary bars are at a completely different orientation. What is going on?

#!/usr/bin/perl
$psfn = “fig.ps”;
system “rm $psfn\n”;
system “rm gmt.history\n”;

$minlat = 3;
$maxlat = 10;
$minlon = -80;
$maxlon = -71;

$rflag2 = “-R$minlon/$maxlon/$minlat/$maxlat”;
$bflag = “-Bf1a2/f1a2”;

system “gmt pscoast $rflag2 -JM6i -S255 -p155/25/0 $bflag > $psfn\n”;

image
image1774×1828 150 KB

2

Why don’t you post a simple one-liner that can be run in any OS? You guys needless post unix scripts and I (Win user) ignore them.

3

gmt pscoast -R-80/-71/3/10 -JM6i -S255 -p155/25/0 -Bf1a2/f1a2 > test.ps

4

See? So much better. And even better (not painting ocean as white too)

gmt pscoast -R-80/-71/3/10 -JM6i -S155 -p155/25/0 -Bf1a2/f1a2 -png lixo

lixo
lixo2402×873 43.9 KB

5

image
image1270×1162 49.2 KB

This is what I get - but I think the difference is that I’m outputting to ps and opening in illustrator, and you’re outputting to png.

6

It’s even wackier if I add in coastlines:
gmt pscoast -R-80/-71/3/10 -JM6i -S155 -W2 -p155/25/0 -Bf1a2/f1a2 > test.ps

image
image1390×1194 58.8 KB

7

not confirming this issue.

can open test.ps using gv or xreader, looks properly, same way as Joaquim’s png above.

8

Confess that I have no idea of where that behavior is coming from.

9

I also can’t reproduce the issue. Please confirm that you’re using the latest GMT version.

10

I also can’t reproduce the issue in ubuntu.

11

I’m using GMT 6.5.0. But it sounds like it’s an illustrator problem? Maybe we add it to the list, along with the greyed out NaNs?

12

When you do like in my example the PS file is converted to png by ghostscript. There is no Illustrator involved in the process.