Space Between Lead Unit and Trailing Unit's or Train.

[dkingsburg]

Not Sure if it's TSRE or What, But I'm Trying to Install Some IC SD40's and When I Run the Activity there is a Gap Between the Lead Engine and the Trailing Engines or Cars.
Thankyou,
DaveK

[slipperman]

Hi Dave,
You know what 'they' say - a picture is worth a 1000 words !
Please post a screenshot of the problem and, as I've asked you elsewhere, tell us exactly what stock you are using.

It's unlikely to be a TSRE problem!

Cheers,
Ged

[wwhall]

Most likely the bounding box on the lead unit is sized incorrectly.

[dkingsburg]

I Solved the problem! Found some other Downloads to Replace them where I Only Needed to Install an .s File and Rename it.
Sometimes it's just Easier to Replace the Problem and Eliminate the Hassle.
DaveK

[slipperman]

Hi Dave,
It's great that you've found a work-around, but it's much better to find the cause of the problem, then solve it. That way, if you come across the same problem again, you'll know how to fix it

Cheers,
Ged

[oper190]

I have experienced the same problem a few times, and found it was a Bounding Box not properly sized. Once corrected there were no large gaps.

[yellowdog]

Another solution may be to adjust the length in the .eng file, in the section marked Size.

[slipperman]

Hi,
Please correct me if I'm wrong but I was under the impression that Open Rails doesn't use the bounding box values for rolling stock.
On the occasions I have come across a 'larger than normal' gap between vehicles, I've solved it by adjusting the 'Size' value in the .eng/.wag file.

The gap is sometimes caused when the centre of the shape is not the actual centre of the vehicle - in these cases, I believe that the CentreOfGravity 'Z' value can be set as appropriate.

Cheers,
Ged

[oper190]

I in my instances I use 'BBox Editor' to correct the size, but it's been a while since I had one to do, so I could had adjusted shape size through that program as well. Don't recall which values I ended up changing.

[crstagg]

Dave,
When you see this occur you need to look at your ORTS Log file. It will tell you what is wrong. The most common problem is "Could not open Wagonfilename shape file." Then it will be up to you to determine if the ENG file is calling for the wrong shape file of if the shape file is missing.

[dkingsburg]

Charles,
I Found Other Downloads where I Just Needed to Rename the .s File or Something Easy so I Don't Need the Units that Gave Me the Problem. What Happened Was When the Activity Started the Engine Consist Had a Long Gap Between the Lead Unit and the Trailing Unit. Probably about an Engine Length. Or if it was a Single Unit there would be the Same Size Gap between the Engine and Train. The File that Gave me the Problem was ; MSTS IC SD40-2R Pack, icsd40pk1.zip.
DaveK

[slipperman]

Hi Dave,
If you look at the OR log, you'll see that errors have been reported in the Size values - Open Rails doesn't understand them, although MSTS does (they are the same values as in the default SD40!!).

Size ( 10ft 15ft+10in 65ft+1in ) should be changed to Size ( 3.11m 4.79m 19.8m )
I also suggest that you change the InertiaTensor values from InertiaTensor ( Box (10ft 15ft+10in 65ft) ) to InertiaTensor ( Box ( 3.11m 4.79m 19.8m ) )

I have taken the replacement values from another SD40, but do not know how accurate they are! All I know is that, now, there are no big gaps between the locos!!

Cheers,
Ged

[eric]

I suspect the measurement using ft+in is problematic. A few old engines based on the original SD40 used that as did a couple older wagons.

Up until recently, TSRE was choking and ignoring it. tt wouldn't surprise me if ORTS was rounding it up instead of converting it correctly.

[dkingsburg]

Ged,
Made the Changes to the Size and InertiaTensor and it Worked.
Thankyou,
DaveK

[slipperman]

Hi,
dave : Glad to have sorted it!

eric : I don't know how Open Rails calculated the size, but the gaps between the locos were at least the length of a loco!!

Cheers,
Ged