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3D Gauges (Read 791 times)
Oct 21st, 2007 at 6:32pm

Gaspen   Offline
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Hi !

I'm searching for a tutorial about creating 3D gauges which you can see in RealAir planes. Which "direction" to start?
 
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Reply #1 - Oct 21st, 2007 at 7:09pm

Felix/FFDS   Offline
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A 3eD gauge is basically straight modelling - you model each part of the gauge, and set the animated needle, etc. with the proper animations.

THe hard part will always be getting the XML coding correct.
 
Felix/FFDS...
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Reply #2 - Oct 22nd, 2007 at 12:49am

Travis   Offline
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Check out the FFDS forums for more information on this.  Look in the XML Codes section.  Link in Felix's signature above.
 
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Reply #3 - Oct 22nd, 2007 at 4:57am

Gaspen   Offline
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Thanks guys ! My idea was also the same, but didn't how to start. I hope FFDS forum will give the answer  Wink
 
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Reply #4 - Oct 22nd, 2007 at 4:04pm

Gaspen   Offline
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Well, I found some XML codes at FFDS forum, does not work for first time....

My way : I make the object in MAX, name it 'gau_needle_speed', anim it with keyframes.
Then I paste the code into modeldef.xml, and use the same text (gau_needle_speed) in the <name> section within it. Finally i export the model to FSX.
 
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Reply #5 - Oct 22nd, 2007 at 6:23pm

Felix/FFDS   Offline
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Post your code here to take a look at it.  It may be that syntax is wrong (FS-X is even more picky on capitalizations than FS9)

Too many thiings to even start thinking what's going off.
 
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Reply #6 - Oct 22nd, 2007 at 6:38pm

Gaspen   Offline
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Here is the code :

<PartInfo>
  <Name>gau_needle_speed</Name>   
  <AnimLength>200</AnimLength>   
   <Animation>   
     <Parameter>   
     <Sim>   
        <Variable>AIRSPEED INDICATED</Variable>   
        <Units>mph</Units>   
        <Scale>4</Scale>   
        <MinValue>0</MinValue>   
        <MaxValue>160</MaxValue>   
     </Sim>   
     </Parameter>   
   </Animation>   
</PartInfo>

I also add this line to the file :

  <Animation name="gau_needle_speed" guid="A6F1C5D0-BEF6-449e-BAF8-FB777F27808F" length="200" type="Sim" typeParam="AutoPlay" />

And here is the XAnim file :

<?xml version="1.0" encoding="ISO-8859-1" ?>
<AnimLib version="9.1">
  <Anim name="gau_needle_speed" guid="A6F1C5D0-BEF6-449e-BAF8-FB777F27808F" length="100.000000"
       type="Sim" typeParam="" typeParam2="">
    <AnimStream name="Rotation" id="0" partName="gau_needle_speed" length="100.000000">
     <Keyframe time="0.000000" type="Quaternion" data="0.000000;0.000000;-0.000000;1.000000"/>
     <Keyframe time="25.000000" type="Quaternion" data="-0.000000;0.179933;0.000000;0.983679"/>
     <Keyframe time="50.000000" type="Quaternion" data="-0.000000;0.353992;0.000000;0.935248"/>
     <Keyframe time="75.000000" type="Quaternion" data="-0.000000;0.516497;0.000000;0.856289"/>
     <Keyframe time="100.000000" type="Quaternion" data="-0.000000;0.662142;0.000000;0.749379"/>
    </AnimStream>
     </Anim>
</AnimLib>

Cool

 
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Reply #7 - Oct 23rd, 2007 at 12:35am

Fr. Bill   Offline
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Gaspen wrote on Oct 22nd, 2007 at 4:04pm:
Well, I found some XML codes at FFDS forum, does not work for first time....

My way : I make the object in MAX, name it 'gau_needle_speed', anim it with keyframes.
Then I paste the code into modeldef.xml, and use the same text (gau_needle_speed) in the <name> section within it. Finally i export the model to FSX.


I assume you used the Animation Tool to assign the "gau_needle_speed" animation name to the part, right?

The needle should be keyframed from 0 - 200 (you stopped at 100!), with intermediate keyframes at the major tickmarks on the background image.
 
Bill
... Gauge Programming - 3d Modeling Eaglesoft Development Group Intel Core 2 Quad Q6600-4GB DDR2 Crucial PC6400-800 GB SATA-ATI Radeon HD2400 Pro 256MB DX10 NOTE: Unless explicitly stated in the post, everything written by my hand is MY opinion. I do NOT speak for any company, real or imagined...
...
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Reply #8 - Oct 23rd, 2007 at 6:33am

Gaspen   Offline
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Ok, I keyframed it 0-200. Only one change : the needle rotating around and around independetly from the real speed of the plane...like a second-needle on a clock Smiley
 
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Reply #9 - Oct 23rd, 2007 at 12:51pm

Fr. Bill   Offline
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Try removing the <Scale>4</Scale> entry.
 
Bill
... Gauge Programming - 3d Modeling Eaglesoft Development Group Intel Core 2 Quad Q6600-4GB DDR2 Crucial PC6400-800 GB SATA-ATI Radeon HD2400 Pro 256MB DX10 NOTE: Unless explicitly stated in the post, everything written by my hand is MY opinion. I do NOT speak for any company, real or imagined...
...
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Reply #10 - Oct 23rd, 2007 at 2:04pm

Gaspen   Offline
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Now I have a working airspeed and vertical speed gauge Smiley  I learned some rules about XML coding from the SDK. So AnimLength = Scale * Value ( the value between MaxValue and MinValue ). I'm not sure, but I think I have to tag the anim with Anim.Manager FIRST, after that I have to animate the part.
Now I'm working with the altimeter...

Thanks a lot !  Smiley
 
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Reply #11 - Oct 23rd, 2007 at 2:09pm

Katahu   Offline
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Hmm, modeling a working gauge in a 3D model? That sounds like something I should explore. My custom 2D gauges tend to be poor in quality, so let me see if this method is any better for my taste. Keep it up, Gaspen. From the looks of things, you seem to be a fast learner.
 
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Reply #12 - Oct 23rd, 2007 at 2:56pm

Gaspen   Offline
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Here is the working code for my airspeed gauge. The max. value on the instrument's face is 400 km/h, thats why I use this number. Scale is 1, so one frame in MAX equal to 1km/h.

<PartInfo>
  <Name>needle_speed</Name>   
  <AnimLength>400</AnimLength>   
   <Animation>   
     <Parameter>   
     <Sim>   
        <Variable>AIRSPEED TRUE</Variable>   
        <Units>kph</Units>   
        <Scale>1</Scale>   
        <MinValue>0</MinValue>   
        <MaxValue>400</MaxValue> 
     </Sim>   
     </Parameter>   
   </Animation>   
</PartInfo>

My altimeter is working also, but both of the needles stop after one revolution. Any idea to solve this?
 
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