we had to display the output of a multichannel ecg (electro cardiograph) device.... tiled vertical:. vertical aligned:. autoscaled x-axis. the - we had to display the output of a multichannel ecg (electro cardiograph) device.... tiled vertical:. vertical aligned:. autoscaled x-axis. the following images show a sample of an ecg application, where eight data sources are displayed vertically tiled and auto-scaled.