[Rock-dev] Joystick and twice a std vector in RawCommand

[Javier Hidalgo Carrió]

> The reason is that each axis could control several sub-axes.

How many axis go to each sub-axes (sub-joystick)? How do you map then?
... The first two one, the first three ones...
>
> The idea behin is that one one-dimensional arrays does not scale very
> whell with different kind of input-devices.
> In the past it was one 1D array. We decided to change this.
Actually I think that 1D array scale better with different kind of input
devices just because it is a plain 1D.
>
> If you have multiple input deviced, the mapping should be done by a
> conversion component. There could be no generic rule how to apply
> RawCommands to something else.
>
> You joystick-driver should output the values from the Joysticks as they
> are. The mapping for your rover's should be done in a specialized component.
Therefore the especialized component should compute e.g.: 2D commands
from a common RawCommand.
 From my point of view the RawCommand should be generic and therefore
raw (plain). Unless there is a way of asking to the Linux api: number of
sub-joysticks to create this 2D array. I still don't see it.

Javier.
>
> So no i'm against a change here.
>
> Best,
> Matthias
>
> On 08.04.2014 14:32, Javier Hidalgo Carrió wrote:
>> Hi rocks!
>>
>> Is there any particular reason why the axisValue is a 2D array?
>>
>>     /* Index 1: num-of input axis, //index 2: dimensions of this axis
>>             * If you have an gamepand which has 2 2Dknops you have an [2][2]
>>             * size'd array for an 3D Mouse you could have [1][6]
>>             */
>>            std::vector<std::vector<double> > axisValue;
>>
>> Why not to create a plain  std::vector<double> instead?
>>
>> I am controlling with a joystick the ESA rover and there are several
>> types of joysticks. They do not all have 4 axis in the main/principal
>> joystick.
>> Therefore, I do not see the benefit of having a std::vector inside
>> another std::vector.
>> My suggestion is to change it to a plain (1D array) std::vector and use
>> the first 4 axis as it is now but without a 2D structure.
>>
>> Javier.
>>
>>
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