@Roland : I saw this change too, removing the error variable fix the
problem :)
Le mardi 18 mai 2021 à 12:44:40 UTC+2, rol...@gmail.com a écrit :
> Hello,
>
> applying Carlas's solution I got a failure in line 20 since plot.New()
> returns a pointer but no pointer, error pair.
>
> Only after changing usage of New() I got the scatter-demo running. May be
> error message can be enhanced :-)
>
> scatter-demo]$ go build
>
> # scatter-demo
> ./main.go:20:9: assignment mismatch: 2 variables but plot.New returns 1
> values
>
> 20 p := plot.New() 21 if p == nil { 22 panic("Plotter cannot
> be created") 23 }
>
>
> BR,
> Roland
>
>
> Am Mo., 17. Mai 2021 um 16:38 Uhr schrieb Fred <fred.so...@gmail.com>:
>
>> Thanks Carla and Sébastien for your quick answer !
>>
>> Carla your solution works, when I use modules I do not have font errors.
>>
>> What is strange is that I was not using modules in any computer to try
>> this example and it was working in one an not the other :)
>>
>> Le lundi 17 mai 2021 à 15:10:55 UTC+2, Sebastien Binet a écrit :
>>
>>> Salut Fred,
>>>
>>> On Mon May 17, 2021 at 14:11 CET, Fred wrote:
>>> > Hi,
>>> > I have 2 computers with Linux Manjaro and go version 1.16.3.
>>> > The same scatter plot
>>> > <https://gist.github.com/sbinet/602522b7399ead414e279e2261d81095>
>>> works
>>> > on
>>> > one computer and produces on the other these already known errors :
>>> > <https://groups.google.com/g/gonum-dev/c/a8sC1fzV3Mo>
>>> >
>>> > # gonum.org/v1/plot/text
>>> > /home/fred/GO/src/gonum.org/v1/plot/text/latex.go:153:3: cannot use
>>> > hdlr.Fonts.Lookup(rm, fnt.Size).Face (type *sfnt.Font) as type
>>> > *truetype.Font in field value
>>> > /home/fred/GO/src/gonum.org/v1/plot/text/latex.go:154:3: cannot use
>>> > hdlr.Fonts.Lookup(rm, fnt.Size).Face (type *sfnt.Font) as type
>>> > *truetype.Font in field value
>>> > /home/fred/GO/src/gonum.org/v1/plot/text/latex.go:155:3: cannot use
>>> > hdlr.Fonts.Lookup(it, fnt.Size).Face (type *sfnt.Font) as type
>>> > *truetype.Font in field value
>>> > /home/fred/GO/src/gonum.org/v1/plot/text/latex.go:156:3: cannot use
>>> > hdlr.Fonts.Lookup(bf, fnt.Size).Face (type *sfnt.Font) as type
>>> > *truetype.Font in field value
>>> > /home/fred/GO/src/gonum.org/v1/plot/text/latex.go:157:3: cannot use
>>> > hdlr.Fonts.Lookup(bfit, fnt.Size).Face (type *sfnt.Font) as type
>>> > *truetype.Font in field value
>>> > /home/fred/GO/src/gonum.org/v1/plot/text/latex.go:221:3: cannot use
>>> > op.Glyph.Font (type *truetype.Font) as type *sfnt.Font in field value
>>>
>>> this should indeed be fixed w/ gonum/pl...@v0.9.0.
>>>
>>> >
>>> > an update does not fix the error.
>>> >
>>> > go get -u gonum.org/v1/plot/...
>>> > # cd /home/fred/GO/src/github.com/go-latex/latex; git pull --ff-only
>>> > Votre information de configuration indique de fusionner avec la
>>> > référence
>>> > 'refs/heads/master'
>>> > du serveur distant, mais cette référence n'a pas été récupérée.
>>> > package github.com/go-latex/latex/drawtex: exit status 1
>>>
>>> this error may come from the fact that go-latex/latex is now using
>>> 'main' as its main branch in lieu of 'master'.
>>>
>>> hth,
>>> -s
>>>
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