1. A method for graphical representation of time-related heart cycle state diagrams based on measured heart functions and heart pumping models, the method comprising: measuring one or more heart functions of a patient, the measuring selected from one or more of ultrasound imaging, electrocardiogram, magnetic resonance imaging, spinning computer aided tomography, strain rate imaging, x-ray imaging, gamma radiation imaging, pulse plethysmography, oximetry, tissue velocity imaging, pulse measuring, flow measuring, pressure measuring, or volume measuring; analyzing the measured heart functions using a dynamic displacement pumping model of a heart using one or more processing devices, the pumping model determining heart cycle states by simulating heart pumping, and by identifying durations of heart cycles, from the measured heart functions; and displaying a graphical model of the heart cycle states on a graphical user interface such that a temporal relation between different heart cycle states is depicted in a single state diagram.