Hello Zeeshan,
As per my understanding you want to use keyboard to control input force.
Please note that you can achieve this by using the `KeyPressFcn` and `KeyReleaseFcn` callback functions in MATLAB.
Here's an example code that demonstrates how you can implement this functionality:
function controlPrismaticJoint()
% Create a prismatic joint
joint = rigidBodyJoint('prismatic');
% Set the initial force and step size
force = 0;
stepSize = 0.1;
% Create a figure window and set the callback functions
fig = figure;
set(fig, 'KeyPressFcn', @keyPressCallback, 'KeyReleaseFcn', @keyReleaseCallback);
while ishghandle(fig)
% Set the input force value of the prismatic joint
joint.Position = force;
% Perform other computations or simulations
% Pause to allow time for the callbacks to execute
pause(0.01);
end
% Key press callback function
function keyPressCallback(~, event)
if strcmp(event.Key, 'uparrow')
% Increase the force value
force = force + stepSize;
elseif strcmp(event.Key, 'downarrow')
% Decrease the force value
force = force - stepSize;
end
end
% Key release callback function
function keyReleaseCallback(~, event)
if strcmp(event.Key, 'uparrow') || strcmp(event.Key, 'downarrow')
% Stop changing the force value when the key is released
force = 0;
end
end
end
In this code, the `KeyPressFcn` callback function is triggered when a key is pressed, and the `KeyReleaseFcn` callback function is triggered when a key is released.
Inside these functions, you can check which key was pressed/released using the `event.Key` property and modify the `force` variable accordingly.
Note that this code is just an example, and you may need to adapt it to your specific use case or integrate it into your existing MATLAB code.
Hope it helps.
