Posted by
CARL Philippe (LBP) on
Mar 18, 2020; 3:31pm
URL: http://imagej.273.s1.nabble.com/A-couple-questions-about-the-Plot-classes-tp5023038p5023057.html
Hi Michael,
The region where I live is already out of of control since a couple days.
And thus having my daughters at home, I spend now most of my time on their homeworks.
Your answer solved (as always) my open questions.
In fact, I wasn't that far from the solution, since I tryed a:
Plot.setLegend(null, "top-left");
in macro but didn't think about the:
Plot.setLegend("", "top-left");
I would just have a very silly question : what is the javadoc?
Have a nice day,
Philippe
----- Mail original -----
De: "Michael Schmid" <
[hidden email]>
À: "imagej" <
[hidden email]>
Envoyé: Mardi 17 Mars 2020 14:19:58
Objet: Re: A couple questions about the Plot classes
Hi Philippe,
sorry, only a slow response; it takes time to accommodate to new
circumstances like distance teaching etc...
(1) You can enable a legend without specifying new labels. Macro call e.g.
Plot.setLegend("", "top-left");
In Java you can also use null for the labels (it is described in the
javadoc)
(2) The update and updateImage methods (which are the same) need a plot
that has been shown.
show() is meant for creating a new plot and returns the PlotWindow (in
interactive mode). You can 'misuse' it for updating a plot.
(3) Many plot methods do not update the plot to avoid unnecessary
operations when you change several things together (or while creating a
plot). Imaging plotting a few curves with a few 100000 data points and
connecting lines each; this may take a while. In many cases the javadoc
specifies whether the plot gets updated or not.
The setLimitsToFit has a boolean argument where you can specify to
update or not to update. If it does not update with boolean
updateImg=true, it is a bug; then let me know, please.
Michael
___________________________________________________________________________________
On 13/03/2020 5:28 pm, CARL Philippe (LBP) wrote:
> Dear all (probably Michael),
> With the new updates of the ImageJ plot classes, it is now possible to add a legend using the Plot.setLegend("label1\tlabel2...", "options") method.
> It is alternatively possible to define the data labels using the Plot.add(type, xValues, yValues, label) method.
> But I didn't find a way (or maybe forgot it) to just draw a legend (defining additionally its options) once having defined the data labels through Plot.add(type, xValues, yValues, label) method besides having to redefine all the "label1\tlabel2..." (and in my application I would thus have 18 labels to be redefined) within the Plot.setLegend("label1\tlabel2...", "options") method.
> Also is there a difference between the Plot.update() and Plot.show() methods?
> At last, I empirically figured out that the Plot.setLimitsToFit() method need to follow either a Plot.update() or Plot.show() method which for me is kind of unlogical.
> Thanks a lot in advance for your lightnings on these questions.
> My best regards,
> Philippe
>
>
> Philippe CARL
> Laboratoire de Bioimagerie et Pathologies
> UMR 7021 CNRS - Université de Strasbourg
> Faculté de Pharmacie
> 74 route du Rhin
> 67401 ILLKIRCH
> Tel : +33(0)3 68 85 42 89
>
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