See Knob / slider animation for the main article about this subject. carrier-wire: makes the object act as an arresting wire, as used on aircraft carriers.ĭirect manipulation animations Knob / slider (v.interaction-type: can have the following values:.Of course you can combine the below mentiond systems into one (big) animation. For more details see ExpressionsĪn animation type that can be used in various ways. Mathematically, assuming the Object to translate is (in the model space) placed at point A (x1, y1, z1) and you want to relocate it to point B (x2, y2, z2) then x2,y2,z2 are the values in the tag of the Translate animation and can be computed as SQRT((x2-x1)^2+(y2-y1)^2+(z2-z1)^2) IF used WTIHOUT property : The object is placed at some (Value of Offset) meters away from its original position, along the virtual axis formed by said original position and the point with coordinates x/y/z defined in the tag. For example, in this case, the object moves 18cm when the value reads 0.66 and 27cm when the value is 1. The first figure ( refers to the value of the property associated with the object and the second figure (in ) refers to the amount that the object moves in metres. The example below is true when n1 has a value greater than 25. less-than-equals: property value (or second property) is smaller than or equal to value/(first)property.less-than: property value (or second property) is smaller than value/(first)property.greater-than-equals: property value (or second property) is greater than or equal to value/(first)property.greater-than: property value (or second property) is larger than value/(first)property.equals: property value (or second property) is equal to value/(first)property.Check $FGDATA/Docs/nditions for some more details. Multiple animations can make use of a conditional. It is possible to reuse the same object definition multiple times within a single XML file.Īdditional tags that can be used in most animations Conditions This also allows a visual check for any axis objects that are not yet assigned. Once the object-name used for the axis has been processed the geometry object will be hidden. With a name animation, you can group multiple objects. Updated shared Effects models will be available very soon. For further details see this thread on the development mailing list. Wrong ordering of animations might cause timed animations (used to create flashing lights) to not work.
Therefore, it is very important to pay attention to the order, especially when multiple animations are applied to the same object(s). ac file using text edit, so that the xml will work.Īnimations are executed by FlightGear in the order that they are read in the model's. You need to amend the relevant object names in your. ac file will name the objects in your model to "blah" by default. Note for SketchUp users: when exporting to AC3D in Sketchup, the. Note for SketchUp users: The spatial reference X/Y/Z used in animation to locate an object or a point are different from the ones in AC3D ie X values are the same in both but Y in animation must be matched to AC3D's -Z (Z value but opposite sign) and Z value in animation must be matched to AC3D's Y value. ac file in your xml animation, it is important that the exactly matches the object named in the. ac code#Identifying an object for the main article about this subject.
See AC files: Understanding and changing.
AC3D 6.4 FULL
There is also a mechanism to substitute a full aircraft model with a simpler AI aircraft model if one is available at the same file path (including for example Models/Boeing-797-800.xml), but in $FG_ROOT/ AI/Aircraft/ instead of $FG_ROOT/Aircraft/. ac file if there is no XML file, (in essence the property /sim/model/path) will be the name of the aircraft that is transmitted when using multiplayer and will also be used for loading multiplayer aircraft. The file name of the main model and animation XML file, or the. See Aircraft-set.xml#Not used for loading multiplayer aircraft for the main article about this subject. Notes File name of main model and animation XML file
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