MATLAB: Does the plot not automatically resize when I manually change the figure size in a .NET application

assemblydllfigureMATLAB Compiler SDKnetresizeresizefcn

I have a .NET application that shows a simple plot.

However, the axes object does not refresh when I manually resize the figure window until I click + zoom and then – zoom on the toolbar.

Best Answer

This issue has been fixed as of MATLAB R2018b. For earlier MATLAB releases, please follow the guidelines below.

In the attachment, the Visual Studio project "ConsoleApp2" is the project that should be opened.

The MATLAB function "myfun.m" is the function that has been compiled into the .NET DLL "myAssembly.dll" with the following command from MATLAB Command Window:

>> mcc -W 'dotnet:myAssembly,myClass,4.0,private' -T link:lib myfun

In order to solve this issue, you need to add the following code at the end of the MATLAB function "myfun.m":

>> set( gcf, 'ResizeFcn', @(~,~)drawnow );

The above code will force MATLAB to refresh the current figure and therefore the axes are forced to be resized according to the current figure size.

After the MATLAB function is modified, please compile the .NET DLL again and make sure that the right DLL is added to the Visual Studio project under "Dependencies" --> "Assemblies".

Note: remember to check that the version of "MWArray.dll" is consistent with the release of MATLAB that you are using, otherwise the build might fail. If you have a different version of "MWArray.dll", remember to remove the one in the project and add the one that corresponds to the MATLAB release that you have (which is located in "<MATLAB directory>\<release>\toolbox\dotnetbuilder\bin\win64\v4.0").

Related Solutions

MATLAB: How to obtain the coordinates of the mouse on the screen displayed somewhere in the figure window

This enhancement has been incorporated in MATLAB 7.5 (R2007b).

As a workaround in previous MATLAB releases, you can use the following MATLAB function to track mouse motion:

function mousetrk
%MOUSETRK function to track mouse motion
% This function creates two static text controls
% which contain the x & y coordinates of the mouse
% The driving callback is executed by the
% WindowButtonMotionFcn of the figure.
figure
axes('Visible','off')
xbox = uicontrol('Style','text','Tag','xbox');
xboxlabel = uicontrol('Style','text','String','X Value',...
    'Position',get(xbox,'position')+[0 21 0 0]);
ybox = uicontrol('Style','text','Position',[90 20 60 20],'Tag','ybox');
yboxlabel = uicontrol('Style','text','String','Y Value',...
    'Position',get(ybox,'position')+[0 21 0 0]);
callback = ['pt = get(gca,''CurrentPoint'');'...
  'xbox = findobj(''Tag'',''xbox'');' ...
  'ybox = findobj(''Tag'',''ybox'');' ...
  'set(xbox,''String'',num2str(pt(1,1)));' ...
  'set(ybox,''String'',num2str(pt(1,2)));'];
set(gcf,'WindowButtonMotionFcn',callback);

For more information on the WindowButton functions, please refer to the Handle Graphics Property Browser:

https://www.mathworks.com/help/releases/R2009b/techdoc/infotool/hgprop/doc_frame.html

MATLAB: Does the .NET option disappear from the Project Settings when I use DEPLOYTOOL in MATLAB 7.3 (R2006b)

This bug has been fixed in MATLAB 7.6 (R2008a). For previous product releases, read below for any possible workarounds:

When creating a shared assembly, you must specify the full path to the encryption key file used to sign the assembly. An overview of setting up Shared Assembly Types can be viewed at the Related Solution listed at

http://www.mathworks.com/support/solutions/data/1-38Z9JK.html?solution=1-38Z9JK

If you did not give the full encryption key path when the PRJ-file is created, a workaround is to edit the .prj file by hand, as it is just an XML-file. When there is no Key Encryption File specified, the PRJ-file ends up with an empty [additionalProperty] element like:

   <MCCProperties>
     <wrapper>
       <type>dotnet</type>
       <component_name>cellcomp</component_name>
       <default_class>cellcompclass</default_class>
       <additionalProperty>0.0</additionalProperty>
       <additionalProperty/>
     </wrapper>

This can be fixed by amending the tag as:

   <MCCProperties>
     <wrapper>
       <type>dotnet</type>
       <component_name>cellcomp</component_name>
       <default_class>cellcompclass</default_class>
       <additionalProperty>0.0</additionalProperty>
       <additionalProperty>private</additionalProperty>
     </wrapper>

The .NET property should then reappear.

Best Answer

Related Solutions

MATLAB: How to obtain the coordinates of the mouse on the screen displayed somewhere in the figure window

MATLAB: Does the .NET option disappear from the Project Settings when I use DEPLOYTOOL in MATLAB 7.3 (R2006b)

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