Problem GlideslopeMFD & Shuttle Fleet 4.7

halcyon

halcyon

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I tried using GlideslopeMFD ([ame="http://www.orbithangar.com/searchid.php?ID=2763"]Glideslope[/ame]) with Orbiter 2010P1, which works fine.
But after installing Shuttle Fleet 4.7, Orbiter crashes when the GlideslopeMFD initialization reaches the Doberai entry.

From what I can tell, Shuttle Fleet doesn't update the Doberai.cfg file in the Base folder. So I thought maybe it's something else and Doberai.cfg is unrelated.

(the rest of my troubleshooting was done AFTER Shuttle Fleet 4.7 was installed, since I confirmed Glideslope already works on a clean Orbiter 2010P1 install)
I don't know much about the file structure for bases, but I looked in my main config folder and the only base files I could find that were outside the Base folder were VBG.cfg, KSC.cfg, EDW.cfg, and ZZA.cfg.
I looked in the Base folder and I have 36 files.
The four .cfg files listed above were also in the Base folder, but had different names. VBG was Vandenburg, KSC was Canaveral, EDW was Edwards, and ZZA was the same.

How many base files should I have in the Base folder?

Also noticed that the KSC.cfg and Canaveral.cfg files have a discrepancy. At line 106 on the Canaveral file, it lists:

Code: 
SOLARPLANT
       POS 366 0 546
       GRID 10 10
       ROT 30
       TEX Solpanel
But on line 106 of the KSC file, it shows:

Code: 
MESH
       FILE vab
       OWNMATERIAL
       POS -7070 0 2280
          ROT 10
       SHADOW
       PRELOAD
Would this have anything to do with it?
Also, looked at my log file and saw this bit:

Code: 
---------------------------------------------------------------
>>> WARNING: Obsolete API function used: oapiRegisterMFDMode
At least one active module is accessing an obsolete interface function.
Addons which rely on obsolete functions may not be compatible with
future versions of Orbiter.
---------------------------------------------------------------
Relevant?
Does anyone else here use GlideslopeMFD with 2010P1 and Shuttle Fleet 4.7 and it works? I'm totally stuck on this one.
 
The next letter after D is E. Where does the config for Edwards reside?
 
Actually I went a step further and started testing the Shuttle Fleet 4.7 install file by file to see which one either:
1. Caused Orbiter to CTD on program launch
2. Caused Orbiter to CTD after initializing GlideslopeMFD

So here are my findings. (all testing done with Space Shuttle Atlantis/Atlantis docked at ISS default stock scenario)
I limited my testing to the Base folder only, since the initialization caused the original CTD after getting to a certain base file, namely Doberai.
Wishbone you were 100% correct, the file it first had trouble reading was Edwards.cfg.
The files are completely different in terms of code.
(however, GlideslopeMFD crashing Orbiter wasn't just limited to the Edwards.cfg file. Once I remedied Edwards, I found another issue. Details below)

Here is the default Edwards.cfg file:

Code: 
BASE-V2.0
Name = Edwards
Location = -117.89 +34.92
Size = 2000

BEGIN_OBJECTLIST
LPAD2
    POS 0 0 0
    SCALE 0 0 0
    TEX Lpad02
      NAV 128.05
END
END_OBJECTLIST
And here is the modified Edwards.cfg provided by the Shuttle Fleet 4.7 install:

Code: 
BASE-V2.0
Name = EDW - Edwards AFB
Location =-117.92    +34.892
Size = 200
MapObjectsToSphere = TRUE

BEGIN_NAVBEACON
VOR EDWX -117.92 34.892 112.55 1500
END_NAVBEACON


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    END1    -1915.1    0    1606.969024
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    NRWSEG 15
    RWSEG1 1 0.025 0.5 0.75 1 0.852
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    RWSEG5 1 0.007 0.5 0.75 0.7305 0.6133
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END
END_OBJECTLIST
At first I thought it had trouble reading the newer file because Name = EDW - Edwards AFB instead of Name = Edwards but turns out it didn't matter. Glideslope still caused a CTD both ways.
So I've determined that a part of the coding in the new Edwards.cfg is causing the CTD on Glideslope initialization, but I wanted to see if the other 3 base config files in the 4.7 install also caused issues.

My findings:
(Updated file) Canaveral.cfg - loaded correctly in Glideslope
(Updated file) Edwards.cfg - (previously discussed)
(Updated file) Vandenburg.cfg - loaded correctly in Glideslope
(NEW file) ZZA.cfg - loaded correctly in Glideslope BUT Orbiter randomly CTDs on program launch

I don't have experience editing .dll files so I have no way of knowing what kind of naming structure the module looks for when reading the base config files.
All I know is Shuttle Fleet's Edwards.cfg has something in it GlideslopeMFD doesn't like.

There could be more issues with additional files Shuttle Fleet adds to the Orbiter installation but all I tested were the four base config files it adds.

---------- Post added at 05:19 ---------- Previous post was at 05:12 ----------

I found the culprit.

The first part of the modified Edwards.cfg file:

Code: 
BASE-V2.0
Name = EDW - Edwards AFB
Location =-117.92    +34.892
Size = 200
MapObjectsToSphere = TRUE
There's no space between Location = and -117.92. I know how touchy syntax can be, so I'm guessing since there's no space Glideslope can't read the location of Edwards AFB and crashes Orbiter.
For good measure I also deleted the extra spaces between -117.92 and +34.892.
Glideslope was able to completely load all bases using the same stock Atlantis scenario.

Now it's time to test out a full Shuttle Fleet 4.7 install.

---------- Post added at 05:26 ---------- Previous post was at 05:19 ----------

Tested the Discovery on orbit scenario file provided by Shuttle Fleet 4.7.
Orbiter CTD'd on program launch 2 out of 5 times.
The three times it did launch though, all bases successfully loaded into GlideslopeMFD.
Hooray!

Now I have to figure out why Glideslope doesn't like the ZZA.cfg file. It's the only file that was added to the Base folder, so my thoughts are it's not somehow hard coded into the module?
Even though it reads it just fine as is.
This issue I may need some help with.
 
Last edited:
halcyon said:
I don't have experience editing .dll files so I have no way of knowing what kind of naming structure the module looks for when reading the base config files.
Click to expand...

Glideslope MFD comes with source code. There's a lot of empty directories in the addon archive. The file you are looking for is Orbitersdk\kwanastro\Glideslope\Glideslope.cpp

I have known about this problem before and it happened exactly the same way for me. So when I installed the Shuttle Fleet I just used GPC MFD for all vessels. Eventually I stopped using Glideslope / it will become interesting again once setting custom descent profiles is more user-friendly (loading them from file).
 
Last edited:
hribek said:
Glideslope MFD comes with source code. There's a lot of empty directories in the addon archive. The file you are looking for is Orbitersdk\kwanastro\Glideslope\Glideslope.cpp

I have known about this problem before and it happened exactly the same way for me. So when I installed the Shuttle Fleet I just used GPC MFD for all vessels. Eventually I stopped using Glideslope / it will become interesting again once setting custom descent profiles is more user-friendly (loading them from file).
Click to expand...

Well I don't know why you wouldn't want to use it.
Now that GlideslopeMFD works for me with Shuttle Fleet 4.7, I gave my first manual reentry a try, and wow.

Glideslope tape display, coupled with the horizontal display and used along with GPCMFD Ops 3 and SurfaceMFD showed me EXACTLY where I had to be on reentry.
Ops 3 provided the visual representation of my deceleration plus current drag, SurfaceMFD gave me faster updates on my vacc, the tape display gave great references on required altitude/vspd/AoA for my current range, and the DelAz along with the horizontal display was great at keeping me on the reentry course all the way to the HAC turn.

I successfully entered a left HAC turn and was lined up with KSC runway 33 at the proper altitude.

The only thing I don't quite get is when to start making the rolls, although I figured if I could see myself on GPCMFD Ops 3 I had to start adding drag to go down the speed corridor.
Also don't know how far to roll, or how much DelAz should display until I have to make a roll reversal.
I just kind of winged it and it turned out perfect, so maybe there's lots of margin for error as long as I'm keeping my deceleration and required alt vs range in check.
 
IIRC 18 degrees for the first roll reversal, 12 degrees for subsequent ones.
 
Wishbone said:
IIRC 18 degrees for the first roll reversal, 12 degrees for subsequent ones.
Click to expand...

:blink: I usually use ~80° for the first one. The Vacc tape on SurfaceMFD is very usefull for getting it right. Or are you talking about DelAz?
 
Thanks to this thread I found out what crashes Glide Slope MFD. In the added files from Shuttle 4.7 the "Location" line has TABS seperating the values.

Delete the tab(s) and replace them with 1 space and it loads fine.

I had to do this to Canveral, Edwards, Vandenburg, and ZZA

There are other places where tabs are used instead of spaces, but Glide Slope doesn't seem to mind them....

If I get random crashes though, I'll go back and remove all of them as well.

Hope this helps!! :thumbup:
 
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