Problem labelling equal size colorbar

[amarux]

Hi!

I am having problems trying to label a discrete equal size color bar.
For example, I am using:

cpt_test  = makecpt(cmap=(:forestgreen,:darkseagreen3,:darkorange1,:red3,:steelblue4), range=(1,6,1),  no_bg=true)
cpt_test.label = ["Good", "Probgood", "Probbad", "bad", "changed"]
colorbar(pos=(paper=true, anchor="2.5i/1i", justify=:CM, size=(1.7,0.22)), axes=:none,  equal=(gap=0.1), cmap=cpt_test, show=1)

With this code I got a color bar labelled with the "lower boundary z-value for the annotation", as indicated in the documentation
However, I am wondering if in GMT.jl I could get something like the image below

Thank you!

[joa-quim]

Hi @amarux,

Well I think you found a bug in GMT. More specifically in the internal machinery that communicates with external interfaces like is the case with Julia. The problem seems to be that the labels are ignored.
But you can make it work with a trick. Save the colormap into a disk file, open it in an editor and add the labels at the end of each line.

gmtwrite("test.cpt", test_cpt)

then, after the edition the contents look like this

1	forestgreen	2	forestgreen	;Good
2	darkseagreen3	3	darkseagreen3	;Probgood
3	darkorange1	4	darkorange1	;Probbad
4	red3	5	red3	;bad
5	steelblue4	6	steelblue4	;changed
B	black
F	white
N	128

next this works (you we mixing inches and cm. Life is simpler in cm).

colorbar(pos=(paper=true, anchor="2.5i/1i", justify=:CM, size=("1.7i","0.22i")), axes=:none,  equal=(gap=0.1), cmap="test.cpt", show=1)

[joa-quim]

Hmm, it actually works if we do as said in the manual (the makecpt GMT man) and put the labels in the T or range option.

test_cpt  = makecpt(cmap=(:forestgreen,:darkseagreen3,:darkorange1,:red3,:steelblue4), no_bg=true, range="Good,Probgood,Probbad,bad,changed");

[amarux]

Nice! Thank you again!