Figure 5. Wimovac central graph control. i) Context sensitive graph control properties panel displayed when a button on the toolbar (v) is selected. ii) Selecting buttons on the control panel modifies graph properties. iii). Tab control used to give access to multiple controls in a small screen area. iv). Graph control showing 3D surface results from the optimum conditions for assimilation module. v) Graph control toolbar gives access to the control panel. Includes tooltipsÔ which explain the button function when the cursor is positioned over the button for a few seconds. vi) Graph output is labeled and includes left (vii), bottom (viii) and legend (vi) information where appropriate.