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Writing Joystick Code: Part 4: Difference between revisions
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(Created page with "{{WIP}} == Axis Numbering == Until now we have got our joysticks working in our system by defining each axis with the following format <axis n="0"> <desc>Aileron</des...") |
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{{JoystickScripting Navigation}} | |||
{{WIP}} | {{WIP}} | ||
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Until now we have got our joysticks working in our system by defining each axis with the following format | Until now we have got our joysticks working in our system by defining each axis with the following format | ||
<syntaxhighlight lang="xml"> | |||
<axis n="0"> | <axis n="0"> | ||
<desc>Aileron</desc> | <desc>Aileron</desc> | ||
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... | ... | ||
</axis> | </axis> | ||
</syntaxhighlight> | |||
This is fine if you are using the joystick on your system. But imagine that you have worked out a brilliant button assignment scheme, using modifiers, so that the joystick is a joy to use. You want to post your code in the forum so everyone can use it. | |||
There's a problem though. Different operating systems assign different numbers to the axes. Let's say that with a your joystick, Windows says that the Aileron axis is number 0, and Macs and Linux say it is axis 2. We have to change our format of the axis definition to | |||
There's a problem though. Different operating systems assign different numbers to the axes. Let's say that with joystick, Windows says that the Aileron axis is number 0, and Macs and Linux say it is axis 2. We have to change our format of the axis definition to | |||
<axis> | <axis> | ||
< | <number> | ||
<windows>0</windows> | |||
<mac>2</mac> | |||
<unix>2</unix> | |||
</number> | |||
<desc>Aileron</desc> | <desc>Aileron</desc> | ||
<binding> | <binding> | ||
... | |||
</binding> | |||
</axis> | </axis> | ||
Now | Now the joystick will work with all operating systems. | ||
Except!! Sometimes an axis works upside down in some operating systems. Here is an example of what to do if the hat works opposite ways | |||
in Linux and Windows. Note the swapping around of - signs between the 2 OSs. Add <mac> to which ever one is correct for the Mac. | |||
<axis> | |||
<number> | |||
<unix>6</unix> | |||
</number> | |||
<desc>View Elevation</desc> | |||
<low> | |||
<repeatable>true</repeatable> | |||
<binding> | |||
<command>property-adjust</command> | |||
<property>/sim/current-view/goal-pitch-offset-deg</property> | |||
<step type="double">1.0</step> | |||
</binding> | |||
</low> | |||
<high> | |||
<repeatable>true</repeatable> | |||
<binding> | |||
<command>property-adjust</command> | |||
<property>/sim/current-view/goal-pitch-offset-deg</property> | |||
<step type="double">-1.0</step> | |||
</binding> | |||
</high> | |||
</axis> | |||
<axis> | |||
<number> | |||
<windows>7</windows> | |||
</number> | |||
<desc>View Elevation</desc> | |||
<low> | |||
<repeatable>true</repeatable> | |||
<binding> | |||
<command>property-adjust</command> | |||
<property>/sim/current-view/goal-pitch-offset-deg</property> | |||
<step type="double">-1.0</step> | |||
</binding> | |||
</low> | |||
<high> | |||
<repeatable>true</repeatable> | |||
<binding> | |||
<command>property-adjust</command> | |||
<property>/sim/current-view/goal-pitch-offset-deg</property> | |||
<step type="double">1.0</step> | |||
</binding> | |||
</high> | |||
</axis> | |||
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Unfortunately, there is no fixed relationship between axis numbering in the operating | Unfortunately, there is no fixed relationship between axis numbering in the operating systems, and the information must be garnered form experience. Fortunately, the button numbering doesn't seem to change. | ||
Here is a list of axis numbers for various joysticks. The list will be expanded as and when I get the required information. If you have axis numbers for a joystick not listed, please post the information [http://flightgear.org | Here is a list of axis numbers for various joysticks. The list will be expanded as and when I get the required information. If you have axis numbers for a joystick not listed here, please post the information [http://forum.flightgear.org/viewtopic.php?f=24&t=17924 here]. Don't post the axis number as they are currently in the xml file, we already know them. | ||
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Hat win 7 unix 5 mac 5 # Up/down | Hat win 7 unix 5 mac 5 # Up/down | ||
-------------------------------------------------- | -------------------------------------------------- | ||
Saitek X52 Pro Flight Control System | |||
Aileron win ? unix 0 mac 0 | |||
Elevator win ? unix 1 mac 1 | |||
Rudder win ? unix 5 mac 2 | |||
Throttle win ? unix 2 mac 3 | |||
Throttle Top Rotary Dial win ? unix 4 mac 4 | |||
Throttle Bottom Rotary Dial win ? unix 3 mac 5 | |||
Throttle Slider win ? unix 6 mac 6 | |||
Bottom Stick Hat win ? unix 7 mac 7 | |||
Top Stick Hat win ? unix 8 mac 8 | |||
I have listed this because the Mac axis numbers are newly available' | |||
As you can see, win numbers still missing. The ones I have are just a guess. | |||
-------------------------------------------------- | |||
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-------------------------------------------------- | ----------------------------------------------------------------------------- | ||
Any complaints/suggestions/questions/kudos can be posted [http://forum.flightgear.org/viewtopic.php?f=24&t=17892 here]. | |||
[[Category:Hardware]] | |||