[FSX] XML Problem with if condition

[Kebas]

[SOLVED][FSX] XML Problem with if condition

Hi all,

I want to make a light gauge, that goes on if the Kohlsman setting not equals the Sea level setting.
The problem is that I can't get the if condition working.
Here is my partial code:

<SimGauge.Element id="Element">
    <FloatPosition>100.000,40.000</FloatPosition>
    <Image id="dotbg.bmp" Name="dotbg.bmp">
        <Transparent>True</Transparent>
        <Bright>True</Bright>
        <Luminous>True</Luminous>
    </Image>
    <Element id="Element">
        <FloatPosition>0.000,0.000</FloatPosition>
        <Visibility>(A:SEA LEVEL PRESSURE, inHg) == (A:KOHLSMAN SETTING HG, inHg) ==
if{ 0 } 
els{ 1 }
        </Visibility>
        <Image id="reddot.bmp" Name="reddot.bmp">
            <Transparent>True</Transparent>
            <Bright>True</Bright>
            <Luminous>True</Luminous>
        </Image>
    </Element>
</SimGauge.Element>

Can someone please help with the IF statement?

Thanks in advance,

Regards,
Jacob.

 

[chris]

I think you've got an 'equal to' too many, Try;

<Visibility>(A:SEA LEVEL PRESSURE, inHg) (A:KOHLSMAN SETTING HG, inHg) == if{ 0 } els{ 1 }</Visibility>

 

[Kebas]

I think you've got an 'equal to' too many, Try;

<Visibility>(A:SEA LEVEL PRESSURE, inHg) (A:KOHLSMAN SETTING HG, inHg) == if{ 0 } els{ 1 }</Visibility>

Sorry, does not work.

I tried an example from the default 737-800 gauge:

<?xml version="1.0" encoding="UTF-16"?>

<SimGauge.Element id="Element">
    <FloatPosition>100.000,40.000</FloatPosition>
    <Image id="dotbg.bmp" Name="dotbg.bmp">
        <Transparent>True</Transparent>
    </Image>
    <Element id="Element">
        <FloatPosition>0.000,0.000</FloatPosition>
        <Visibility>(A:SEA LEVEL PRESSURE, inHg) == (A:KOHLSMAN SETTING HG, inHg) if{ 1 } els{ 0 }</Visibility>
        <Image id="reddot.bmp" Name="reddot.bmp">
            <Transparent>True</Transparent>
            <Bright>True</Bright>
            <Luminous>True</Luminous>
        </Image>
    </Element>
</SimGauge.Element>

but still doen't work...

 

[grainboundary]

<Visibility>(A:SEA LEVEL PRESSURE, inHg) (A:KOHLSMAN SETTING HG, inHg) == if{ 1 } els{ 0 }</Visibility>

Does this work?

 

[Kebas]

<Visibility>(A:SEA LEVEL PRESSURE, inHg) (A:KOHLSMAN SETTING HG, inHg) == if{ 1 } els{ 0 }</Visibility>

Does this work?

Neither, the light is always off, so reddot.bmp is never showed.
Tried with digits in stead of variables. That works. It seems, that the variables are not evaluated well in flightsim.
I'll working on it.

 

[rpmc]

Rounding errors, probably. Sea Level pressure might be something like 29.92182 inHg, and Kohlsman something like 29.917782 inHg. The numbers are not equal, but in typical gauge readouts, they may be rounded to 2 decimal places and appear the same.

Your formula

(A:SEA LEVEL PRESSURE, inHg) (A:KOHLSMAN SETTING HG, inHg) ==

will likely always return 'not equal'.

Bob

 

[Kebas]

Rounding errors, probably. Sea Level pressure might be something like 29.92182 inHg, and Kohlsman something like 29.917782 inHg. The numbers are not equal, but in typical gauge readouts, they may be rounded to 2 decimal places and appear the same.

Your formula

(A:SEA LEVEL PRESSURE, inHg) (A:KOHLSMAN SETTING HG, inHg) ==

will likely always return 'not equal'.

Bob

You are so right Bob!
Thank you very much for this tip.
I changed the setting from HG to MB of both and it works like a charm!

Kindly regards,
Jacob.

 

[rpmc]

I changed the setting from HG to MB of both and it works like a charm!

You might give this a try for the heck of it:

    <Macro Name="Round2">d flr s0 - 100 * near 100 / l0 +</Macro>

and

<Visibility>(A:SEA LEVEL PRESSURE, inHg) @Round2 (A:KOHLSMAN SETTING HG, inHg) @Round2 == if{ 1 } els{ 0 }</Visibility>

Also, you should have run into the same problem using millibars... one will be 1013.0625 and the other 1013.2500, for example. Again, not equal...

Bob

 

[Kebas]

You might give this a try for the heck of it:

    <Macro Name="Round2">d flr s0 - 100 * near 100 / l0 +</Macro>

and

<Visibility>(A:SEA LEVEL PRESSURE, inHg) @Round2 (A:KOHLSMAN SETTING HG, inHg) @Round2 == if{ 1 } els{ 0 }</Visibility>

Also, you should have run into the same problem using millibars... one will be 1013.0625 and the other 1013.2500, for example. Again, not equal...

Bob

Thanks very much Bob!
I changed it back to HG and with your macro it works great!

Jacob.