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Using pcshow on a UI panel

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Andre on 23 Mar 2017
Commented: Andre on 13 Feb 2018
I am trying to plot a point cloud of data on an axes whose Parent is a uipanel. The uipanel was created on a figure. The issue I am having is that when I am trying to show the point cloud data using pcshow, I am getting an error as follows:
PC = pointCloud(dataPts); % Where dataPts is a Nx3 array of 3D coordinates
pcshow(PC, 'Parent', ax); % where ax is the handle to the axes whose 'Parent' is a uipanel
No appropriate method, property, or field 'Renderer' for class 'matlab.ui.container.Panel'.
Error in pcshow (line 106) if strcmpi(hFigure.Renderer, 'painters')
It seems like the pcshow only works when the axes's 'Parent' is a figure, otherwise it will not find the 'Renderer' properties (such as within the uipanel).
Is there any way of plotting point cloud data on an axes that is a 'child' of a uipanel?
Thanks a lot in advance!
Kind Regards, Andre

Accepted Answer

Guojin Feng
Guojin Feng on 9 Feb 2018
I had encountered the same issue. One option would be to modify the pcshow function Modify the line around Line 108
% Get the current figure handle
hFigure = get(currentAxes,'Parent');
htmp = currentAxes;
while true
hFigure = get(htmp, 'Parent');
htmp = hFigure;
if isa(hFigure, 'matlab.ui.Figure')
Hope this helps.
Walter Roberson
Walter Roberson on 9 Feb 2018
You can instead use
hFigure = ancestor(currentaxes, 'Figure');
Andre on 13 Feb 2018
Thanks a lot to both parties! I tried and tested both options and they all worked seamlessly!

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More Answers (1)

Sindhu Priya
Sindhu Priya on 28 Mar 2017
Edited: Sindhu Priya on 28 Mar 2017
Hi Andre,
As far as I know, 'pcshow' does not allow you to plot on any other axes apart from 'figure'. You can use 'scatter3' fucntion to plot your data on the axes of uipanel as follows,
ax = axes('Parent',uipanel,'Position',[.1 .1 .6 .6]);
Please refer
for further information.

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