I'm trying to call patch without permanently changing my X axis from a datetime array.
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Hi. I'm trying to call patch without permanently changing my X axis from a datetime array. Here is an example of what I'm trying to do. The call to temporarily change the data type in XData is not working. Any suggestions?
% Create data & plot
x = datetime(2017,1,1) + caldays(1:31);
y = rand(1,31);
plt = plot(x, y);
% Convert X axis to a double
plt.XData = datenum(plt.XData);
% Shade patch area
Ys = ylim;
Y1 = [Ys(1),Ys(2),Ys(2),Ys(1)];
x1 = datenum(datetime(2017,1,14));
x2 = datenum(datetime(2017,1,21));
ptch = patch([x1 x1 x2 x2], Y1, [0 0 0]);
ptch.FaceAlpha = .15;
% Convert X axis back to a datetime type
plt.XData = datetime(plt.XData, 'ConvertFrom', 'datenum');
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Walter Roberson
le 9 Oct 2017
Modifié(e) : Walter Roberson
le 15 Mai 2020
x = datetime(2017,1,1) + caldays(1:31);
y = rand(1,31);
plt = plot(x, y);
hold on
x1 = datetime(2017,1,14);
x2 = datetime(2017,1,21);
fx = [x1 x2 x2 x1 x1]
Ys = ylim;
fy = [Ys(1) Ys(1) Ys(2) Ys(2) Ys(1)];
fill( fx, fy, [0 0 0], 'FaceAlpha', 0.15);
hold off
4 commentaires
Walter Roberson
le 15 Mai 2020
Please show your call to datetime() that is triggering the problem, including showing the class() of each of the variables you are passing in.
Plus de réponses (1)
Sean de Wolski
le 9 Oct 2017
Use fill instead of patch.
% Create data & plot
x = datetime(2017,1,1) + caldays(1:31);
y = rand(1,31);
plt = plot(x, y);
% Convert X axis to a double
% plt.XData = datenum(plt.XData);
% Shade patch area
Ys = ylim;
Y1 = [Ys(1),Ys(2),Ys(2),Ys(1)];
x1 = (datetime(2017,1,14));
x2 = (datetime(2017,1,21));
ptch = fill([x1 x1 x2 x2], Y1, [0 0 0]);
ptch.FaceAlpha = .15;
1 commentaire
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