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YASim: Difference between revisions
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→Torus-shaped contact surface on next: Updated with recent change to allow backwards compatibility.
(→gear: Describe new support for torus tyre surface on next.) |
(→Torus-shaped contact surface on next: Updated with recent change to allow backwards compatibility.) |
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| Line 289: | Line 289: | ||
On next as of 2022-3-19 one can specify a torus-shaped tyre contact surface using these new parameters: | On next as of 2022-3-19 one can specify a torus-shaped tyre contact surface using these new parameters: | ||
* '''wheel-x''' | |||
* '''wheel-y''' | |||
* '''wheel-z''' | |||
* '''wheel-radius''' (default 0) | * '''wheel-radius''' (default 0) | ||
* '''tyre-radius''' (default 0) | * '''tyre-radius''' (default 0) | ||
| Line 295: | Line 298: | ||
* '''wheel-axle-z''' | * '''wheel-axle-z''' | ||
The contact point will be the lowest point on a torus with radius '''tyre-radius''' wrapped around a wheel with radius '''wheel-radius''' centred on point '''(x, y, z)''' with orientation defined by '''wheel-axle'''. This contact point will depend on the aircraft's orientation relative to the ground. | The contact point will be the lowest point on a torus with radius '''tyre-radius''' wrapped around a wheel with radius '''wheel-radius''' centred on point '''(wheel-x, wheel-y, wheel-z)''' with orientation defined by '''wheel-axle'''. This contact point will depend on the aircraft's orientation relative to the ground. | ||
If not specified, '''wheel-axle''' defaults to (0, 1, 0), giving a conventional vertical wheel in line with the aircraft. Other values may allow modelling of, for example, a Bf109's non-vertical undercarriage. | If not specified, '''wheel-axle''' defaults to (0, 1, 0), giving a conventional vertical wheel in line with the aircraft. Other values may allow modelling of, for example, a Bf109's non-vertical undercarriage. | ||
Default values of zero for wheel-radius and tyre-radius give a fixed contact point at (x, y, z) | Default values of zero for wheel-radius and tyre-radius give a fixed contact point at (wheel-x, wheel-y, wheel-z). | ||
If an aircraft also specifies an old-style contact point with '''(x, y, z)''' it will work with both new and old builds of Flightgear. | |||
==== Launchbar ==== | ==== Launchbar ==== | ||