There is no automatic way to draw a mathematical curve, but you can
generate points for a given mathematical function using IupPlotSetFormula.
Best,
Scuri
2018-04-14 7:20 GMT-03:00 Johann Philippe <johannphili...@yahoo.fr>:
> Error is on me : didn't read the "only works if DS_MODE..."
> The plot thing i'm doing is going well, my last "plot question" is about
> drawing curved segments (like exponential, logarithmic etc...), i can't
> find in the documentation a way to do this.
>
>
>
> Le samedi 14 avril 2018 à 11:52:21 UTC+2, Johann Philippe via Iup-users <
> iup-users@lists.sourceforge.net> a écrit :
>
>
> Another thing to report : it seems the FindSegment(cnvx,cnvy) isn't
> working (attempt to call nil value)
> It's weird because the segment highlighting works fine.
>
>
> Le vendredi 13 avril 2018 à 10:19:13 UTC+2, Johann Philippe via Iup-users <
> iup-users@lists.sourceforge.net> a écrit :
>
>
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> Thanks Antonio !
> Le jeudi 12 avril 2018 à 15:31:35 UTC+2, Antonio Scuri <
> antonio.sc...@gmail.com> a écrit :
>
>
> Hi,
>
> It is an error in the documentation. If you check the C version of the
> same function it does not returns x,y, it actually receives x,y as
> parameters.
>
> Best,
> Scuri
>
>
> 2018-04-12 9:22 GMT-03:00 Johann Philippe via Iup-users <
> iup-users@lists.sourceforge.net>:
>
> Dear all,
>
> I've been working yesterday with iupPlot / Lua : what i want to do is to
> add points with mouse (i could do this with plotbutton_cb) and, when i
> click on an existing sample, to move it on the graph with mouse. I'm able
> to find the point with the plot:FindSample(), and to select it isn't a
> problem - plot:SetSampleSelection(). Even having mouse values isn't a
> problem with plotmotion_cb.
> The problem is that i can't find a way to change the sample coordinates :
> even the plot:SetSample() function doesn't work for me (and i don't really
> understand why this function doesn't take x and y points as input
> arguments).Is this function designed for that purpose ?
> Or is there another way ? Maybe having direct access on the Dataset Table
> could be great, but i don't find neither a way to change coordinates in the
> dataset : the IupPlot page online only talks about DS_REMOVE, or DS_COUNT,
> but there is no DS_EDIT or something like that.
>
> Any help would be great
>
> Also, this Plot seems really powerfull, "bravo" for this beatiful work,
> and thanks a lot.
>
>
> Johann
>
>
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