surfplot uicontrol, updateSystem failure

Hello,

I'm trying to create a surfplot with sliders that will update the input values of the system.

The values for the X and Y axis remain constant but a certain parameter is changed to change the outcome in the Z domain. I have used

TEST_function(PARAM_1); %This calculates X_vector, Y_vector and Z_array
f = figure;
ax = axes('Parent',f,'position',[0.13 0.39  0.77 0.54]);
h = surf(X_vector,Y_vector,Z_array);

b = uicontrol('Parent',f,'Style','slider','Position',[81,54,419,23],...
              'value',PARAM_1, 'min',1, 'max',30);
bgcolor = f.Color;
bl1 = uicontrol('Parent',f,'Style','text','Position',[50,54,23,23],...
                'String','1','BackgroundColor',bgcolor);
bl2 = uicontrol('Parent',f,'Style','text','Position',[500,54,23,23],...
                'String','30','BackgroundColor',bgcolor);
bl3 = uicontrol('Parent',f,'Style','text','Position',[240,25,100,23],...
                'String','PARAM_1','BackgroundColor',bgcolor);

b.Callback = @(es,ed) updateSystem(h,TEST_function(es.Value));

When I run the file, Matlab returns the following error:

Undefined function 'updateSystem' for input arguments of type 'matlab.graphics.chart.primitive.Surface'.

Error in TEST>@(es,ed)updateSystem(h,TRANSFER_TEST(es.Value))

Error while evaluating UIControl Callback

I think it has something to do with the surf plot but I'm not able to figure out exactly what it is.

Regards, Mark.

[Tejas]

The documentation for 'updateSystem' seems to indicate that 'updateSystem' is expecting a 'handle' object that is mostly the output of a response plot command.