Degree Symbol does not plot

[arulalant]

Hai,

In previous versions of cdat, we used to plot degree symbol by !Uo!D. But in cdat8.1 version, it is not plotting degree symbol instead it just displaying text as !Uo!D.

Is there any way to plot degree Celsius or degree symbol. ?

[indseelan]

you can plot using the following syntax in cdat8 unit_name = r"$\ ^oC$"

On Fri, 17 May 2019 at 22:05, Arulalan.T [email protected] wrote:

Hai,

In previous versions of cdat, we used to plot degree symbol by !Uo!D. But in cdat8.1 version, it is not plotting degree symbol instead it just displaying text as !Uo!D.

Is there any way to plot degree Celsius or degree symbol. ?

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[arulalant]

Hai,

Thanks. Using the command ($^{\circ}$C) I am able to plot degree Celsius symbol in cdat8.1. When I am storing the vcs canvas as png, it works perfectly. But when I am saving canvas as pdf, a red colored rectangular border seems to appear over the text (after inserted $^{\circ}$C).

See the attached screenshot taken on pdf file.

Is there any solution to save pdf without red colored border line ?

[doutriaux1]

@scottwittenburg can you investigate please?

@arulalant for more on text object please review:

https://cdat.llnl.gov/Jupyter-notebooks/vcs/Mathematical_Expressions_and_Symbols/Mathematical_Expressions_and_Symbols.html

and

https://cdat.llnl.gov/Jupyter-notebooks/vcs/VCS_Text_Objects/VCS_Text_Objects.html

[scottwittenburg]

ping @danlipsa

[arulalant]

@doutriaux1 Thanks. Meanwhile is that possible to increase png dpi resolution while saving x.png(filename)?. I couldn't control the dpi in the argument. If I am able to save high definition png image, then also my problem will solve as of now (for plotting degree symbol).

[doutriaux1]

@arulalant you can pass width= and heigth= to the png function. Or create big canvas at init time:

import vcs
x=vcs.init(geometry={"width":3000,"height":2000})
x.plot(...)
x.png("filename.png")

or

import vcs
x=vcs.init()
x.plot(...)
x.png("filename.png", width=8000, height=4000, units="pixels")

[arulalant]

Hai,

When I try to change the default font and save plot as pdf, then I am getting error.

v = vcs.init() v.addfont(helvetica_font, 'helvetica') vcs.setdefaultfont('helvetica') ... v.pdf('out.pdf')

ERROR: In ../IO/ExportPDF/vtkPDFExporter.cxx, line 113 vtkPDFExporter (0x7fd3223c24c0): LibHaru failed during PDF export. Error=0x105d detail=0

I am getting the above error while saving as pdf only, not other formats. Any suggestions?