![]() Begun by volunteers, it is continued by enthusiasts whose primary goal is to develop the world's best and most realistic free flight simulator. In July of this year, FlightGear celebrated its 15th anniversary. The first official release was the following year, and the latest release was made available in August of 2012. If you haven't already heard of it, let me introduce you to FlightGear, an open-source flight simulator produced by the FlightGear project.Ī flight simulation enthusiast named David Murr first kicked off the project in April of 1996. Wouldn't it be nice to find a high-quality, free flight simulator? Your prayers are answered, my friend. Over time, all those acquisitions add up to a serious investment. Not to mention the tens, maybe hundreds of aircraft that are beginning to fill up your hard drive. Once you acquired a quality program, it's not long before you purchased several others. Flight simulation can be an expensive hobby. In particular, tooltips could potentially be shown via the tutorial system in a sticky mode, guiding the user to the location and meaning of a cockpit control which requires interaction.Let’s be honest. Once the basic system is setup, we can investigate using the mechanism to further improve in-cockpit learnability and usability. For knobs and sliders the feedback is useful in being able to quickly move to a precise value. overhead panel switches with a tri-state, at a 'skewed' angle to the user. This helps with many controls where the panel text is illegible, or the control orientation is ambiguous - e.g. The result is they get positive confirmation of the new value of the control, during and after making a change. This mode shows the tooltip when the user interacts with a pickable animation. Gui.popupTip("readme", nil, nil, ) Tooltip-on-click More info can be found in $FG_ROOT/Nasal/gui.nas. Tooltips can also be shown from Nasal scripts. The property value is available to the script as arg nasal, evaluates a Nasal script each time the property changes.arm-disarm, on-off, up-down, down-up, open-close and close-open - map a boolean value to a text string.heading - maps a double or int value to a 0.359 heading/bearing.Mapping defines of a (growing) set of standard mappings of the property value.If the measure-text is omitted, the actual label text is used, which can cause minor adjustments to tooltip size as the property value changes. This configuration allows adjusting the tooltip font-size in the future without tooltip data changing (which would not be the case if an explicit width was specific). Measure-text is a string used to size the tooltip, i.e the largest possible string.Property is a property value to display.Label is a printf-style format string (which need not contain expansions). ![]() In both cases, the ID is necessary to give correct updating. The tooltip-id is important to distinguish when the mouse moves over different scene objects (with potentially the same tooltip), or crosses between different objects without an intervening hit on an area with no tooltip assigned. This design allows us to show tooltips at configurable points, either the standard method - after the mouse is stationary for a period of time - or in response to other actions, such as mouse clicks/drags. The mouse-handling system then displays the tooltip at the correct time. The tooltip is configured at this time, especially content and an ID. (Which is a fancy way of saying, switches don't click or feel to move).Ī tooltip is specified via a set-tooltip command in a pick (or slider or knob) animation's bindings group. They provide a way for a cockpit to be partially self-documenting, when a user explores, and can also provide a positive confirmation of state or action, which is often lacking in 3D cockpit interactions due to absence of audio or haptic feedback. Tooltips are a work-in-progress usability enhancement. Altimeter pressure setting tooltip in the Robin DR400. ![]()
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