Issue with user-defined text legend scale

[Lucanta]

What happened?

There is a magics bug in python/metview by which when specifying a user-defined text legend scale (egend_text_composition="user_text_only"), the penultimate value of the legend is missing and is instead moved to the last position, while the last element doesn't appear at all. See image attached below.

What are the steps to reproduce the bug?

Below the python script I run.
NB. file is available in a public path in my home

---

import metview as mv

ens_t = mv.read(source="ens_t.grib",number=[1,2,3,4,5,6,7,8,9,10])

spr_t = mv.stdev(ens_t)
max_t = mv.maxvalue(ens_t)
spr_t_norm = spr_t/max_t

print(mv.minvalue(spr_t_norm),mv.maxvalue(spr_t_norm))

cont_spread = mv.mcont(
legend = "on",
contour = "off",
contour_label = "off",
contour_level_selection_type = "level_list",
contour_max_level = 1000.,
contour_min_level = 0.,
contour_level_list = [0,0.001,0.002,0.003,0.004,0.005,0.006,0.007,0.008,0.009,0.01],
contour_shade = "on",
contour_shade_colour_method = "palette",
contour_shade_method = "area_fill",
contour_shade_palette_name = "colorbrewer_ext_YlGn_10_r",
)

coast = mv.mcoast(
map_coastline_colour="charcoal",
map_coastline_resolution="medium",
map_coastline_land_shade="on",
map_coastline_land_shade_colour="beige",
map_coastline_sea_shade="on",
map_coastline_sea_shade_colour="RGB(0.8178,0.9234,0.9234)",
map_grid_colour="RGB(0.4,0.4,0.4)",
map_label_height=0.35,
)

title = mv.mtext(text_line_1="Normalised spread",text_font_size=1.2)
legend = mv.mlegend(legend_text_font_size=0.5,legend_title_font_size=1.0,legend_text_composition="user_text_only",legend_user_lines=["0","0.1%","0.2%","0.3%","0.4%","0.5%","0.6%","0.7%","0.8%","0.9%","1%"])

view = mv.geoview(coastlines=coast)

dw = mv.plot_superpage(pages=mv.mvl_regular_layout(view,1,1,1,1,[0,100,0,100]))

mv.setoutput(mv.png_output(output_name="spr_norm_t",output_name_first_page_number="off",output_width=1600))
mv.plot(dw,spr_t_norm,cont_spread,legend,title)

Version

Python 3.6.8, metview-python 1.14.0

Platform (OS and architecture)

Linux VDI (release 1.40)

Relevant log output

No log available (no error is produced).

Accompanying data

/home/dalc/Public/ens_t.grib

Organisation

ECMWF

[sylvielamythepaut]

Hi,
Thanks for your bug report.
I think I have enough information to reproduce the problem.
Sylvie

[sylvielamythepaut]

Hi,
I am trying to fix this issue, but I have a question that will help me to understand :
Was it working in a previous version of Metview ?
Thanks a lot for your help
Sylvie

[Lucanta]

Hi Sylvie, I only joined in June 2021 but as far as I remember, this has never worked since I have been at the centre. Have a good weekend! Luca

…

On Tue, 5 Mar 2024, 18:14 Sylvie, ***@***.***> wrote: Hi, I am trying to fix this issue, but I have a question that will help me to understand : Was it working in a previous version of Metview ? Thanks a lot for your help Sylvie — Reply to this email directly, view it on GitHub <#106 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADE3OYRRYII2E4XVOEI6TY3YWX4OPAVCNFSM6AAAAABC3VMJJSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSNZZGI2TKNZVGE> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[sylvielamythepaut]

Thanks a lot , that is the information I was looking for before implementing the fix . I should be able to get that fix soon and will liaise with the Metview teamSylvieOn 8 Mar 2024, at 09:05, Luca Cantarello ***@***.***> wrote: Hi Sylvie, I only joined in June 2021 but as far as I remember, this has never worked since I have been at the centre. Have a good weekend! Luca

On Tue, 5 Mar 2024, 18:14 Sylvie, ***@***.***> wrote: Hi, I am trying to fix this issue, but I have a question that will help me to understand : Was it working in a previous version of Metview ? Thanks a lot for your help Sylvie — Reply to this email directly, view it on GitHub <#106 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADE3OYRRYII2E4XVOEI6TY3YWX4OPAVCNFSM6AAAAABC3VMJJSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSNZZGI2TKNZVGE> . You are receiving this because you authored the thread.Message ID: ***@***.***>

—Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you commented.Message ID: ***@***.***>