[FSXA] XML Code Help needed

[mike november]

Hi there,

I am working on a Caution Panel for a helicopter project and am stuck on some of the code...

1. Generator Lights are coded like this:

<Element id="No.1 Generator OFF">
<FloatPosition>60.000,30.000</FloatPosition>
<Visibility>(A:GENERAL ENG GENERATOR ACTIVE:1,bool) 0.5 &gt; (A:PARTIAL PANEL ELECTRICAL,enum) ! and if{ 0 } els{ 1 }</Visibility>
<SizeScale>1.400</SizeScale>
<Image id="Caution_No1_Generator_ON.bmp" Name="Caution_No1_Generator_ON.bmp">
<Transparent>True</Transparent>
</Image>
</Element>

Basically they work fine, but, they maintain lit when the battery is switched off....

2. Hydraulic Pressure Lights are coded like this:

<Element id="Aux Servo Press">
<FloatPosition>170.000,245.000</FloatPosition>
<Visibility>(A:Engine HYDRAULIC PRESSURE,Pounds per square foot) 1008000 &lt; (A:PARTIAL PANEL ELECTRICAL,enum) ! and if { 1 } els { 0 }</Visibility>
<SizeScale>1.400</SizeScale>
<Image id="Caution_Aux_Servo_Press_ON.bmp" Name="Caution_Aux_Servo_Press_ON.bmp">
<Transparent>True</Transparent>
</Image>
</Element>

They aren't doing anything

3. Fuel Low Lights are coded like this:

<Element id="FWD Fuel Low">
<FloatPosition>62.000,138.000</FloatPosition>
<Visibility> (A:Fuel Tank Right Main Quantity,gallons) 40 &lt; (A:PARTIAL PANEL ELECTRICAL,enum) ! and if { 0 } els{ 1 }</Visibility>
<SizeScale>1.400</SizeScale>
<Image id="Caution_Fwd_Fuel_Low_ON.bmp" Name="Caution_Fwd_Fuel_Low_ON.bmp">
<Transparent>True</Transparent>
</Image>
</Element>

They also don't do nothing...


Any help would be highly appreciated.

[chris]

The second two have a space between the 'if/else' and the '{'.

The first one you could possibly use;

A:ELECTRICAL MASTER BATTERY,Bool

instead of the partial panel variable.

I've never used partial panels like that, I usually put them in the the failures section ... I feel a little test gauge coming on ...

[mike november]

Hey Chris, thanks a lot, will try that out asap

[mike november]

Ok, problems solved. Actually the usage of the "ELECTRICAL MASTER BATTERY" value made no difference, but while looking at that line of code again, I suddenly knew it...

Here's what I did:
<Visibility>(A:GENERAL ENG GENERATOR ACTIVE:1,bool) 0.5 &lt; (A:PARTIAL PANEL ELECTRICAL,enum) ! and if{ 1 } els{ 0 }</Visibility>

[mike november]

OK, here I am again. The Caution Panel still working as it is expected to do, I drilled new holes into my panel to fill them with lights. Unfortunately, they do display right on lamptest, the don't display on the set condition. Anyone here to help me up that horse?

1. Battery_Hot_Light

This Light should be lit in case, that Battery is ON, respective Generator is ON and a certain amount of time has passed...

<SimGauge.Gauge id="Gauge" ArtDirectory="F:/Mk41">
<FloatPosition>0.000,0.000</FloatPosition>
<Size>26,26</Size>
<Image id="RED_Off.bmp" Name="RED_Off.bmp">
<Transparent>True</Transparent>
</Image>
<Element id="Lamptest">
<FloatPosition>0.000,0.000</FloatPosition>
<Visibility>(L:Lamp_Test,bool) 0.5 &gt; (A:PARTIAL PANEL ELECTRICAL,enum) ! and if{ 1 } els{ 0 }</Visibility>
<Image id="RED_ON.bmp" Name="RED_ON.bmp">
<Transparent>True</Transparent>
<Bright>True</Bright>
<Luminous>True</Luminous>
</Image>
</Element>
<Element id="Battery_Hot">
<FloatPosition>0.000,0.000</FloatPosition>
<Visibility>(A:ELECTRICAL MASTER BATTERY,bool) 0.5 &gt; (A:GENERAL ENG GENERATOR ACTIVE:1,bool) 0,5 &gt; and if{ 1 } els{ 0 }</Visibility>
<Image id="RED_ON.bmp" Name="RED_ON.bmp">
<Transparent>True</Transparent>
<Bright>True</Bright>
<Luminous>True</Luminous>
</Image>
</Element>
</SimGauge.Gauge>

2. Load_On_Hook_Light

his is to be lit, when there ist something attached to either sling or hoist.

<SimGauge.Gauge id="Gauge" ArtDirectory="F:/Mk41">
<FloatPosition>0.000,0.000</FloatPosition>
<Size>26,26</Size>
<Image id="RED_Off.bmp" Name="RED_Off.bmp">
<Transparent>True</Transparent>
</Image>
<Element id="Lamptest">
<FloatPosition>0.000,0.000</FloatPosition>
<Visibility>(L:Lamp_Test,bool) 0.5 &gt; (A:PARTIAL PANEL ELECTRICAL,enum) ! and if{ 1 } els{ 0 }</Visibility>
<Image id="GREEN_ON.bmp" Name="GREEN_ON.bmp">
<Transparent>True</Transparent>
<Bright>True</Bright>
<Luminous>True</Luminous>
</Image>
</Element>
<Element id="Hoist">
<FloatPosition>0.000,0.000</FloatPosition>
<Visibility>(L:SLING OBJECT ATTACHED:0,bool) 0.5 &gt; (A:PARTIAL PANEL ELECTRICAL,enum) ! and if{ 1 } els{ 0 }</Visibility>
<Image id="GREEN_ON.bmp" Name="GREEN_ON.bmp">
<Transparent>True</Transparent>
<Bright>True</Bright>
<Luminous>True</Luminous>
</Image>
</Element>
<Element id="External_Load">
<FloatPosition>0.000,0.000</FloatPosition>
<Visibility>(L:SLING OBJECT ATTACHED:1,bool) 0.5 &gt; (A:PARTIAL PANEL ELECTRICAL,enum) ! and if{ 1 } els{ 0 }</Visibility>
<Image id="GREEN_ON.bmp" Name="GREEN_ON.bmp">
<Transparent>True</Transparent>
<Bright>True</Bright>
<Luminous>True</Luminous>
</Image>
</Element>
</SimGauge.Gauge>

3. Auto_Catch_Light

Here I want the light to work, when the "pickup mode" of sling/hoist is activated...

<SimGauge.Gauge id="Gauge" ArtDirectory="F:/Mk41">
<FloatPosition>0.000,0.000</FloatPosition>
<Size>26,26</Size>
<Image id="RED_Off.bmp" Name="RED_Off.bmp">
<Transparent>True</Transparent>
</Image>
<Element id="Lamptest">
<FloatPosition>0.000,0.000</FloatPosition>
<Visibility>(L:Lamp_Test,bool) 0.5 &gt; (A:PARTIAL PANEL ELECTRICAL,enum) ! and if{ 1 } els{ 0 }</Visibility>
<Image id="AMBER_ON.bmp" Name="AMBER_ON.bmp">
<Transparent>True</Transparent>
<Bright>True</Bright>
<Luminous>True</Luminous>
</Image>
</Element>
<Element id="Hoist">
<FloatPosition>0.000,0.000</FloatPosition>
<Visibility>(A:SLING HOOK IN PICKUP MODE:0,bool) 0.5 &gt; (A:PARTIAL PANEL ELECTRICAL,enum) ! and if{ 1 } els{ 0 }</Visibility>
<Image id="AMBER_ON.bmp" Name="AMBER_ON.bmp">
<Transparent>True</Transparent>
<Bright>True</Bright>
<Luminous>True</Luminous>
</Image>
</Element>
<Element id="External_Load">
<FloatPosition>0.000,0.000</FloatPosition>
<Visibility>(A:SLING HOOK IN PICKUP MODE:1,bool) 0.5 &gt; (A:PARTIAL PANEL ELECTRICAL,enum) ! and if{ 1 } els{ 0 }</Visibility>
<Image id="AMBER_ON.bmp" Name="AMBER_ON.bmp">
<Transparent>True</Transparent>
<Bright>True</Bright>
<Luminous>True</Luminous>
</Image>
</Element>
</SimGauge.Gauge>

Thanks in advance for your help.

[n4gix]

Originally Posted by mike november

Ok, problems solved. Actually the usage of the "ELECTRICAL MASTER BATTERY" value made no difference, but while looking at that line of code again, I suddenly knew it...

Here's what I did:
<Visibility>(A:GENERAL ENG GENERATOR ACTIVE:1,bool) 0.5 &lt; (A:PARTIAL PANEL ELECTRICAL,enum) ! and if{ 1 } els{ 0 }</Visibility>

That really makes no sense at all. A 'bool' type variable can only ever be either 0 or 1...

Also, it has been mentioned many times that even the programmers have stated that the only guaranteed value is 0 (zero). Because of rounding errors, frequently instead of 1 we might actually get 0.999999998, which of course would cause a check for 1 to fail.

Best chance for success is to always check for zero or not-zero

(A:GENERAL ENG GENERATOR ACTIVE:1,bool) 0 == (battery off)
(A:GENERAL ENG GENERATOR ACTIVE:1,bool) 0 != (battery on)

[mike november]

Hey Bill,

thx for the reply. The funny thing is, my code, as false as it may be, works flawless... for whatever reason...

[n4gix]

Originally Posted by mike november

Hey Bill,

thx for the reply. The funny thing is, my code, as false as it may be, works flawless... for whatever reason...

Well of course it does, after all 0.5 is definitely less than 1.0...

It's just a very strange way of writing boolean logic!

[mike november]

Oh, eeeeeeeeeeeeh... true