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FSXA To command the propeller lever with a switch

F

FBVLV

Messages
61
Country
france
I want to control the position of the propeller with a switch.
when you press this switch, the propeller lever must decrease up to -25%
I wrote this code, but it doesn't work.
What is wrong?

Code: 
<PartInfo>
        <Name>00-NORD_Cde_Drapeau_G</Name>
        <AnimLength>50</AnimLength>
        <Animation>
            <Parameter>
                  <Code>
	        (L:Cde_Drapeau_G,number) 50 *
                 </Code>               
                <Lag>400</Lag>
            </Parameter>
        </Animation>
        <MouseRect>
            <Cursor>Hand</Cursor>
           <TooltipText>Drapeau commande G</TooltipText>
            <CallbackCode>
              (L:Cde_Drapeau_G,number) ! (&gt;L:Cde_Drapeau_G,number)	
              (L:Cde_Drapeau_G,number) 1 == if{ -25 (&gt;A:GENERAL ENG PROPELLER LEVER POSITION:1,Percent) }
            </CallbackCode>
        </MouseRect>
</PartInfo>
 
Last edited:
You can't write to A:Vars in XML, you need to use an Event ID so your last line should look like:

(L:Cde_Drapeau_G,number) 1 == if{ 1 (&gt;K:KEY_PROP_PITCH1_DECR) }

That will reduce the prop pitch lever, I'm not sure how much by exactly as that's preset in FSX.

Alternatively you can use the AXIS_PROPELLER_SET event ID to set an exact value which you'd have to calculate each time.

The complete set of Event IDs are in the SDK, there are about six options for each prop so you should be able to find one that works for what you want.
 
Thank you for your help.
this code works correctly :
Code: 
<PartInfo>
        <Name>00-NORD_Cde_Drapeau_G</Name>
        <AnimLength>50</AnimLength>
        <Animation>
            <Parameter>
                <Code>
	      (L:Cde_Drapeau_G,number) 50 *
	       </Code>
            <Lag>400</Lag>
            </Parameter>
        </Animation>
        <MouseRect>
            <Cursor>Hand</Cursor>
            <TooltipText>Drapeau Gauche</TooltipText>
            <CallbackCode>
		(L:Cde_Drapeau_G,number) ! (&gt;L:Cde_Drapeau_G,number)
		(L:Cde_Drapeau_G,number) 1 == 
		if{ [B][COLOR="Red"]-4096 (&gt;K:PROP_PITCH1_SET)[/COLOR][/B] }
	</CallbackCode>
        </MouseRect>
</PartInfo>

But how to reset (L:Cde_Drapeau_G,number) to 0 when PROP_PITCH1 is greater than 0 ?
Code: 
(A:GENERAL ENG PROPELLER LEVER POSITION:1,percent) 0 &gt; if{ 0 (&gt;L:Cde_Drapeau_G,number) }
doesn't work correctly.
 
FBVLV said:
But how to reset (L:Cde_Drapeau_G,number) to 0 when PROP_PITCH1 is greater than 0 ?
Code: 
(A:GENERAL ENG PROPELLER LEVER POSITION:1,percent) 0 &gt; if{ 0 (&gt;L:Cde_Drapeau_G,number) }
doesn't work correctly.
Click to expand...

Hm i don't see anything wrong in your code :confused:

Does (A:GENERAL ENG PROPELLER LEVER POSITION:1,percent) ever go higher than 0? Or does L:Cde_Drapeau_G,number get set to a different value elsewhere in the gauge (or another gauge)?
In other words i would check the value of the variables using the blackbox gauge.

grt
Willem
 
Here the full code:

Code: 
<PartInfo>
        <Name>00-NORD_Cde_Drapeau_G</Name>
        <AnimLength>50</AnimLength>
        <Animation>
            <Parameter>
                  <Code>
			  (L:Cde_Drapeau_G,number) 50 *
		    </Code>
            	    <Lag>400</Lag>
            </Parameter>
        </Animation>
        <MouseRect>
            <Cursor>Hand</Cursor>
            <TooltipText>Drapeau Gauche</TooltipText>
            <CallbackCode>
		(L:Cde_Drapeau_G,number) ! (&gt;L:Cde_Drapeau_G,number)
		(L:Cde_Drapeau_G,number) 1 == 
		if{ -4096 (&gt;K:PROP_PITCH1_SET) }
		[B][COLOR="Blue"](A:GENERAL ENG PROPELLER LEVER POSITION:1,percent) -25 &gt;
                  if{ 0 (&gt;L:Cde_Drapeau_G,number) }[/COLOR]	[/B]
            </CallbackCode>
        </MouseRect>
	 <Visibility>
      		<Parameter>
        		<Code>
          		(L:Cde_Drapeau_G,number) if{ 1 } els{ 0 }
        		</Code>
      		</Parameter>
   	 </Visibility>
</PartInfo>

(L:Cde_Drapeau_G,number) exists only in this code.

What I want to do :
  1. When I press the button, the propeller is feathered;
  2. When the PROPELLER LEVER leaves the position -25, the button controlled by (L:Cde_Drapeau_G,number) go back to the initial position and (L:Cde_Drapeau_G,number) = 0.
This part of the code doesn't work.
 
Even by changing this value, the code doesn't work.

And this code also doesn't work. :banghead:


Code: 
(A:PROP BETA:1,degrees) 15 &gt;
if{ 0 (&gt;L:Cde_Drapeau_G,number) }

For information the aircraft.cfg file has the following lines
Code: 
beta_max=65.0					
beta_min=15.0
beta_feather=96.0
 
FBVLV said:
Here the full code:

Code: 
<PartInfo>
        <Name>00-NORD_Cde_Drapeau_G</Name>
        <AnimLength>50</AnimLength>
        <Animation>
            <Parameter>
                  <Code>
			  (L:Cde_Drapeau_G,number) 50 *
		    </Code>
            	    <Lag>400</Lag>
            </Parameter>
        </Animation>
        <MouseRect>
            <Cursor>Hand</Cursor>
            <TooltipText>Drapeau Gauche</TooltipText>
            <CallbackCode>
		[COLOR="Red"](L:Cde_Drapeau_G,number) ! (&gt;L:Cde_Drapeau_G,number)[/COLOR]
		(L:Cde_Drapeau_G,number) 1 == 
		if{ -4096 (&gt;K:PROP_PITCH1_SET) }
		[B][COLOR="Blue"](A:GENERAL ENG PROPELLER LEVER POSITION:1,percent) -25 &gt;
                  if{ 0 (&gt;L:Cde_Drapeau_G,number) }[/COLOR]	[/B]
            </CallbackCode>
        </MouseRect>
	 <Visibility>
      		<Parameter>
        		<Code>
          		(L:Cde_Drapeau_G,number) if{ 1 } els{ 0 }
        		</Code>
      		</Parameter>
   	 </Visibility>
</PartInfo>
Click to expand...

Looks like L:Cde_Drapeau_G,number gets swapped from 0 to 1 again in the next gauge cycle (marked red).
It just loops really.
First the value gets toggled, then if it is 1 the prop pitch gets set, then if the lever posn is more than -25 the value is set to 0.
Next gauge cycle the value gets toggled again, then if it is 1 the prop pitch gets set etc.

Could that be the problem?
Did you check the values in question in the sim by using the blackbox gauge?

(also, can A:GENERAL ENG PROPELLER LEVER POSITION:1,percent have a negative value??)
Hope this helps!

grt
Willem
 
Last edited:
I found the solution !
First I have this code to animate the propeller :

Code: 
<PartInfo>
        <Name>00-NORD_Cde_Drapeau_G</Name>
        <AnimLength>50</AnimLength>
        <Animation>
            <Parameter>
                  <Code>
			  (L:Cde_Drapeau_G,number) 50 *
		    </Code>
            	    <Lag>400</Lag>
            </Parameter>
        </Animation>
        <MouseRect>
            <Cursor>Hand</Cursor>
            <TooltipText>Drapeau Gauche</TooltipText>
            <CallbackCode>
		(L:Cde_Drapeau_G,number) ! (&gt;L:Cde_Drapeau_G,number)
		(L:Cde_Drapeau_G,number) 1 == 
		if{ -4096 (&gt;K:PROP_PITCH1_SET) }
            </CallbackCode>
        </MouseRect>
	 <Visibility>
      		<Parameter>
        		<Code>
          		(L:Cde_Drapeau_G,number) if{ 1 } els{ 0 }
        		</Code>
      		</Parameter>
   	 </Visibility>
</PartInfo>
Second, I've created a little square in the VC tagged with this code :
Code: 
<PartInfo>
    <Name>00-NORD_Cde_Drapeau_Reset</Name>
    <Visibility>
      <Parameter>
        <Code>
          <!-- Si la manette hélice est supérieure à la position drapeau, le bouton drapeau revient à la position initiale.-->
          	(A:GENERAL ENG PROPELLER LEVER POSITION:1,percent) -1 &gt;
		(L:Cde_Drapeau_G,number) 1 == and
		if{ 0 (&gt;L:Cde_Drapeau_G,number) }

		(A:GENERAL ENG PROPELLER LEVER POSITION:2,percent) -1 &gt;
		(L:Cde_Drapeau_D,number) 1 == and
		if{ 0 (&gt;L:Cde_Drapeau_D,number) }
        </Code>
      </Parameter>
    </Visibility>
 </PartInfo>
Hope that will be useful to someone.
And thank you for your help
 
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