Download Matlab Client Example1 that contains 4 files for the base example client. Visual3DServer currently only runs with 34 bit Matlab clients.

These files ship with the Visual3D Server, and are a great starting point for any application. To run this example, open GUIClient.m and hit run. The connect dialog and a graph will appear.

You can use this example to plot signals contained within the stream, but for you serves as a good starting point for a new client.

The code you want to modify is contained within “function timerFunc(obj, event, handles)”. That function executes on a timer, whose speed can be updated with a text box on the GUI (bottom right corner). In this function you'll see this line “if calllib('V3DSClientLib', 'v3ds_lockMutex');”. When this returns true and the if statement is met, that means there is new data in the stream. After, we buffer new data by putting it in temporary storage “ dataBuffer(end+1) = value; frameBuffer(end+1) = valueFrame +(i-1)/(nFrameVal);”.

After populating your buffers, you need to check if a condition has been met, and if it has, you want to plot the data. In this case, we plot the data after a certain number of frames, with the condition being “ if getappdata(handles.plotWindow,'frameCounter') > str2double(getappdata(handles.plotWindow,'plotFrame'))”. If that condition is true, we plot the signals and clear the buffers (next 15 lines-could be in a separate function).

In your case, you may want to plot the data if a certain event occurred, such as the knee angle reaching a peak, or at mid stance. There are an endless number of possibilities, and the time when you plot new data depend on the application.

TestClient is installed with Visual3DServer. TestClient is a simple feedback application that allows you to send a pipeline script containing any of the above supported commands to Visual3DServer. The results that come back to the client are then displayed in a 2-D graph by result name and component. The axes show frames versus result values. TestClient is very useful for testing a pipeline script before trying to display more elaborate feedback in another client. You can send any subject speicfic XML model to Visaul3DServer for testing as well.