velocityModelSpace: Difference between revisions
Jump to navigation
Jump to search
Lou Montana (talk | contribs) m (Text replacement - " \| *(game[0-9]|version[0-9]|gr[0-9]|serverExec|mp|pr|descr|s[0-9]|p[0-9]{1,3}|r[0-9]|x1?[0-9]|seealso) *= +" to " |$1= ") |
Lou Montana (talk | contribs) m (Text replacement - "\|s([0-9])\= '''([^' ]+)'''([^ ]+) " to "|s$1= $2$3 ") |
||
| Line 8: | Line 8: | ||
|descr= Returns the velocity (speed vector) of the vehicle as an array with format [x, y, z]. Vector is in model space. | |descr= Returns the velocity (speed vector) of the vehicle as an array with format [x, y, z]. Vector is in model space. | ||
|s1= | |s1= [[velocityModelSpace]] vehicle | ||
|p1= vehicle: [[Object]] | |p1= vehicle: [[Object]] | ||
Revision as of 18:11, 20 June 2021
Description
- Description:
- Returns the velocity (speed vector) of the vehicle as an array with format [x, y, z]. Vector is in model space.
- Groups:
- Object Manipulation
Syntax
- Syntax:
- velocityModelSpace vehicle
- Parameters:
- vehicle: Object
- Return Value:
- Array
Examples
- Example 1:
velocityModelSpace _chopper; comment "Returns [X (left(-) right(+)), Y (backward(-) forward(+)), Z (down(-) up(+))]";
Additional Information
Notes
-
Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note
- Posted on December 11, 2014 - 02:55 (UTC)
- Pierre MGI
- This function is useful for helicopters as it returns Z vector like an indicator of thrust/load ratio. More or less climb (+) or descent (-) tendency but: As X,Y,Z vectors are relative to vehicle attitude, this function doesn't return a climb or descend rate (as the attitude of the vehicle can be far from horizontal). You can get negative Z vector, in jets, while climbing fast, peeling off in the sky! More or less, you can use as a Z accelerometer factor but invert the sign: +G acceleration (negative vector below the jet) is -Z here. If not "physically" correct, the behavior is sufficient enough for Arma flight model.
- Posted on June 21, 2015 - 02:36 (UTC)
- K.J.
- Previous note is physically incorrect. Velocity can not be used to give information about Thrust/Load ratio or G-Forces/acceleration. To get acceleration you have to create the derivative of velocity after time dv/dt -> the difference of velocity between 2 timesteps divided by the time that passed between the 2 steps.