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rover flight modes: Specify speed axis #3530

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Rewording to differentiate between longitudinal (forward/backwards) and lateral (left/right) motion.

@chfriedrich98 chfriedrich98 self-assigned this Dec 20, 2024
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@@ -18,7 +18,7 @@ Manual modes require stick inputs from the user to drive the vehicle.

The sticks provide the same "high level" control effects over direction and rate of movement in all manual modes:

- `Left stick up/down`: Drive the rover forwards/backwards (controlling forward speed)
- `Left stick up/down`: Drive the rover forwards/backwards (controlling longitudinal speed)
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@hamishwillee hamishwillee Dec 20, 2024

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I guess longitudinal is OK. I preferred the original. I.e. this means "controlling forward backward speed".

Suggested change
- `Left stick up/down`: Drive the rover forwards/backwards (controlling longitudinal speed)
- `Left stick up/down`: Drive the rover forwards/backwards (controlling speed)

Why? Well when someone says longitudinal I'm thinking, now what does that mean? It's accurate, but not as immediately obvious as forwards/backwards.

So I'd prefer it done like this and as in https://github.com/PX4/PX4-user_guide/pull/3530/files#r1894469734

BUT you have broad ownership of this area, so if you strongly prefer longitudinal then please merge this as-is. Otherwise change.

@@ -31,7 +31,7 @@ The manual modes provide progressively increasing levels of autopilot support fo

::: details Overview mode mapping to control effect

| Mode | Forward speed | Steering angle/lateral acceleration | Required measurements |
| Mode | Longitudinal speed | Steering angle/lateral acceleration | Required measurements |
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You could do this as (everywhere)

Suggested change
| Mode | Longitudinal speed | Steering angle/lateral acceleration | Required measurements |
| Mode | Forward/backwards speed | Steering angle/lateral acceleration | Required measurements |

@@ -18,9 +18,9 @@ Manual modes require stick inputs from the user to drive the vehicle.

The sticks provide the same "high level" control effects over direction and rate of movement in all manual modes:

- `Left stick up/down`: Drive the rover forwards/backwards (controlling forward speed)
- `Left stick up/down`: Drive the rover forwards/backwards (controlling longitudinal speed)
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Suggested change
- `Left stick up/down`: Drive the rover forwards/backwards (controlling longitudinal speed)
- `Left stick up/down`: Drive the rover forwards/backwards (controlling speed)

- `Left stick left/right`: Yaw the rover to the left/right (controlling yaw rate).
- `Right stick left/right`: Drive the rover left/right (controlling lateral speed)
- `Right stick left/right`: Drive the rover left/right (controlling lateral speed).
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Suggested change
- `Right stick left/right`: Drive the rover left/right (controlling lateral speed).
- `Right stick left/right`: Drive the rover left/right (controlling speed).

@@ -33,7 +33,7 @@ The manual modes provide progressively increasing levels of autopilot support fo

::: details Overview mode mapping to control effect

| Mode | Forward/Lateral speed | Yaw rate | Required measurements |
| Mode | Longitudinal/Lateral speed | Yaw rate | Required measurements |
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This case perhaps makes sense to keep as longitudinal.

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