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topic: 2609Bug in generating a transition?
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posted: 7 Jan 2015 23:16

from:

Chris Copplestone
 
 

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Hi Martin,

The attached screenshot shows the problem. I'm linking a siding to the first turnout of a tandem using the standard procedure with just geometry > track centre-lines only for generating a transition. However after clicking peg / align tools > make transition curve from current template > try right-hand first, although I get the required transition, I also get, as well as the centre-line, the MS running rail? Clicking geometry shows that the template is now normal although there is no timbering or a TS running rail?. When I open the omit rails and joint marks ... menu and tick to get the TS running rail, it is out of gauge? Note that I have tidied up the template by lengthening it to join it to the siding and shortening it to just join the turnout.

Is this a bug or am I doing something not allowed?

Regards

Chris
Attachment: attach_2034_2609_trackpad_screenshot_2015_01_07_2327_55.png     374

posted: 8 Jan 2015 00:12

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Hi Chris,

I can confirm that the make transition function cancels the track centre-lines only setting. Until I have looked at the code in detail I can't say whether that is a bug or necessary for some reason. Some of Templot's geometry requires the main-side stock rail to be generated, at least.

Sorry, I didn't quite follow your comments about the individual rails. :? Did the starting control template have one of the rails omitted, independently of being set to centre-lines only?

But the incorrect gauge looks very odd. I note that you seem to be using mixed gauge templates -- is that for conductor rails? The align functions are limited if both templates are not of the same gauge, see:

 message 13110

If you could please post your .box file here it will be easier to see what is the problem.

regards,

Martin.

posted: 8 Jan 2015 13:40

from:

Chris Copplestone
 
 

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Martin Wynne wrote:
Hi Chris,

I can confirm that the make transition function cancels the track centre-lines only setting. Until I have looked at the code in detail I can't say whether that is a bug or necessary for some reason. Some of Templot's geometry requires the main-side stock rail to be generated, at least.

Sorry, I didn't quite follow your comments about the individual rails. :? Did the starting control template have one of the rails omitted, independently of being set to centre-lines only?

But the incorrect gauge looks very odd. I note that you seem to be using mixed gauge templates -- is that for conductor rails? The align functions are limited if both templates are not of the same gauge, see:

 message 13110

If you could please post your .box file here it will be easier to see what is the problem.

regards,

Martin.
Hi Martin,

Many thanks - here are my responses to each of your paragraphs:

OK - I was following your tutorial http://www.templot.com/martweb/info_files/make_trans.htm and was expecting to have to untick the geometry > track centre-lines only. :)

No - the starting template was a copy of the siding swung through 180 degrees using SHIFT F8 and then ticking the geometry > track centre-lines only, then using F6 to curve it.

Yes, there is a lot of third rail. Looking at your link has triggered a thought though - the turnout partial template in the tandem is a gaunt turnout as required by your quick guide to generating tandems. Maybe that's a clue to what's happening here :)

Box file is attached but bear in mind that it's still work in progress :)

Regards
Chris
Attachment: attach_2035_2609_cannons_ford_2015_01_08_0106_00.box     287

posted: 8 Jan 2015 17:03

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Thanks for the file Chris.

You have found two bugs. :(

1. make branch track does not ensure both rails are generated for the plain track if one or both of the stock rails is being omitted from the original turnout. Likewise for make split, although it's moot whether that is a bug.

2. if the original turnout is a gaunt turnout, make branch track corrupts the track gauge.

I will get these bugs fixed. Many thanks for reporting them.

In the meantime, if you insert a turnout in the transition template, change it from a gaunt turnout to a normal one, and then convert back to plain track, all should be well.

regards,

Martin.

posted: 9 Jan 2015 11:32

from:

Chris Copplestone
 
 

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Hi Martin,

thanks for the tip :thumb:

regards
Chris



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