Effacer les filtres
Effacer les filtres

Get clim values from colormap and adjust them in real time

35 vues (au cours des 30 derniers jours)
Pelajar UM
Pelajar UM le 11 Mar 2022
Commenté : Pelajar UM le 11 Mar 2022
I am trying to get the cmin and cmax values from a colormap, output them to editfields and let the user change them to update the plot in real time.
s = trisurf(F,P(:,1),P(:,2),P(:,3), Thickness2, 'Parent', app.UIAxes2_5);
c = colorbar(app.UIAxes2_5);
d = colormap(app.UIAxes2_5, jet);
d.clim([cmin cmax]); %Error: unrecognized function or variable 'cmin'
app.MinEditField.Enable = 'on';
app.MinEditField.Value = cmin;
app.MaxEditField.Enable = 'on';
app.MaxEditField.Value = cmax;
I also want the faceAlpha to be 0 for values above cmax and below cmin. But before I reach there, I get an error.

Réponse acceptée

Sugar Daddy
Sugar Daddy le 11 Mar 2022
boyaa, let me show you how to do that in a simple matlab figure. then figure it out yourself, how to do it for uiaxes
ax = gca;
mesh(ax,rand(100,100));
colormap(ax,'jet')
[cmin cmax] = deal(ax.CLim);
Now you have current cmin and cmax value.
change their value in Clim
ax.CLim = [0.1 1]
  1 commentaire
Pelajar UM
Pelajar UM le 11 Mar 2022
Thanks. This was helpful.
Two problems here:
  1. "deal" doesn't work. cmin and cmax give the same result (min and max together in two columns).
  2. gca doesn't seem to work in app designer
This one did the job:
x = app.UIAxes2_5.CLim;
cmin = x(:,1);
cmax= x(:,2);

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Plus de réponses (1)

Simon Chan
Simon Chan le 11 Mar 2022
Use clim(app.UIAxes2_5,[cmin cmax])

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