"Invalid handle." Error while using "Plot3".

ax = axes('Parent',customUserInterface,'Position',[.1 .5 .375 .4]);
hold on
for m=1:numOfAP
    plot3(ax,Data(m).traj(:,1),Data(m).traj(:,2),Data(m).traj(:,3),'g','LineWidth',2)
    hold on
    grid on
end
hold on

The Error points to the line with "Plot3". What am I going wrong with? Thanks in advance.

[Image Analyst]

Type customUserInterface and ax in the command window and tell us what it shows.

>> ax
>> customUserInterface

[Abhay Aradhya]

command window to both "ax" and "customUserInterface" says

"handle to deleted Axes"

[Walter Roberson]

You probably have a "clear all" or "close all" somewhere in your code.

Note: if customUserInterface says it is a deleted Axes then customUserInterface must have been an Axes at one point. But it is not permitted to make an Axes a child of another Axes. Your customUserInterface would need to be a container object such as a figure or uipanel.

[Abhay Aradhya]

@walterRoberson

I checked the code once again but I do not have a "clear all" or "close all" anywhere in the code. I am putting down the code for your ref. Please suggest some work around. Thanks in advance.

    customUserInterface = figure('Name','Solution selector window');

    ax = axes('Parent',customUserInterface,'Position',[.1 .5 .375 .4]);
    hold on

    % to plot all the crossing points
    subplot(ceil(sqrt(size(sectors_all,1))),ceil(sqrt(size(sectors_all,1))),p, 'Position',flightDataPlotPosition);
    hold on;

    if isempty(CP_xyz) == 0
        plot3(ax,CP_xyz(:,1),CP_xyz(:,2),CP_xyz(:,3),'rh','LineWidth',2);
    end
    hold on

    % To plot the trajectory taken by all the flights in the current hour
    for m=1:numOfAP
        plot3(ax,Data(m).traj(:,1),Data(m).traj(:,2),Data(m).traj(:,3),'g','LineWidth',2)
        hold on
        grid on
    end
    hold on

[Abhay Aradhya]

Found out that the "subplot" is the culprit. And without that it works fine. Any idea of a workaround?

Answer 1

[Walter Roberson]

subplot() removes any axes that it overlaps. Your subplot() has exactly the same Position as your axes() call, so the subplot axes is going to overlap the explicit axes() created, which will cause the specific axes to be deleted.

Answer 2

[KSSV]

You should proceed like this.

h = plot3(rand(1,2),rand(1,2),rand(1,2),'g','LineWidth',2) ;
grid on

for m=1:100
    set(h,'XData',rand(1,2),'YData',rand(1,2),'ZData',rand(1,2)) ;    
end

[Abhay Aradhya]

    customUserInterface = figure('Name','Solution selector window');

    ax = axes('Parent',customUserInterface,'Position',[.1 .5 .375 .4]);
    hold on

    subplot(ceil(sqrt(size(sectors_all,1))),ceil(sqrt(size(sectors_all,1))),p, 'Position',[.1 .5 .375 .4]);
    hold on;

    h = plot3(ax,rand(1,2),rand(1,2),rand(1,2),'g','LineWidth',2) ;
    grid on

    for m=1:numOfAP
        set(h,'XData',Data(m).traj(:,1),'YData',Data(m).traj(:,2),'ZData',Data(m).traj(:,3))

    end
    hold on

Tried the above approach to no avail the same error exists...!!!

It shows error at "plot3" again. Without the "ax" it seems to be working fine though, but I do need the referencing in my case as I am trying to plot 2 3D graphs on the same GUI. Please suggest any other solution. Thanks in advance

[Abhay Aradhya]

Found out that the "subplot" is the culprit. And without that it works fine. Any idea of a workaround?