Trim works reverse in 3/7

[GoogleCodeExporter]

What steps will reproduce the problem?
1. set AIL to -100 in screen 3/7 to reverse input to several mixers at once.
2.
3.

What is the expected output? What do you see instead?
expect: AIL function is inverted, AIL trim is inverted
actual: AIL is inverted, but AIL trim works normal

What version of the product are you using? On what operating system?
R185

Please provide any additional information below.
I programmed an elevon plane with mixers. To achieve the correct function, I 
could have set both mixers to -50%,-50%, but decided to leave them at +50%,+50% 
and invert the input from the AIL stick in menu 3/7. Surprise at the flying 
field when I tried to trim the plane. The trim works the other way around. 

Original issue reported on code.google.com by harm.del...@echostar.com on 6 Mar 2011 at 9:54

[GoogleCodeExporter]

I can confirm this issue also with r190

Original comment by angoliman@ewetel.net on 6 Mar 2011 at 10:16

[GoogleCodeExporter]

In my opinion it makes no sense to have the option for negativ weight values at 
3/7  

Original comment by angoliman@ewetel.net on 6 Mar 2011 at 10:28

[GoogleCodeExporter]

ok, probably comment #2 is right. There is no real use case for negative 
weight-values.
Additionally it is not trivial to solve the trimmer-problem.
For negative weights we could invert the trim-values, but for curves with 
random shape this decision is not well-defined.
I think for now we simply recommend not to use negative weights. This is 
currently only useful when, for any reason, the sticks deliver an inverted 
signal.

Original comment by th...@t-online.de on 12 Mar 2011 at 9:02

[GoogleCodeExporter]

dont use negative Weight values in the Expo-Menu unless you really know what 
you are doing.

Original comment by th...@t-online.de on 7 Sep 2011 at 4:35

• Changed state: WontFix