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1st message | this message only posted: 30 Jun 2014 23:30
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from:
Brian Nicholls
Poole, United Kingdom



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Hi Martin,

I have a query regarding one of the geometry peg positions in version 2.09a.

when you lengthen the turnout exit road using CNTRL + F12, say beyond the turnout overall length, then after the adjustment, putting the peg on the TOLP position, still puts the peg on the centre-line of the turnout road directly in line with the overall turnout length (as before).

Is this correct ?

Or should this change with the turnout exit road length ?

All the best,

Brian.

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2nd message | this message only posted: 1 Jul 2014 11:11
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from:
Martin Wynne
West Of The Severn, United Kingdom



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Hi Brian,

The TOLP peg position is on the Turnout road Opposite overall Length Position, i.e. opposite the end of the main road, not necessarily at the end of the turnout road. So it is working as intended.

It is mainly intended for use with parallel type V-crossings, so that additional templates can be pegged onto the loop line:



The adjustable turnout road option (CTRL+F12) is not available with the parallel type of V-crossing, the turnout road always terminates at the same overall length as the main road, i.e. at the TOLP peg position.

If you want the peg in some other position, you can run it along the turnout road centre-line (or along the rails) using the CTRL+F8 mouse action.

The parallel type of V-crossing is something of an oddity and not often used. If I was starting Templot again I would probably not include it. But I can't now remove it without breaking existing .box files. It is useful if you want a return curve within a transition zone:



(The prototype doesn't* put pointwork on a transition curve -- because of the impossibility of running a cant gradient through a moving switch -- but it's a handy device when fitting model track in a tight space.)

Adjusting the turnout road length with CTRL+F12 is intended to deal with short** gaps and overlaps after other templates have been aligned, and for use with partial templates. It's not intended to create a significant section of track -- for that you would use the tools > make branch track function to create a separate template (which might be quite short).

*never say never. :)  It would work on a flat transition as in a model, but I'm not aware of any examples.

**I have changed the default in the next program update so that you don't see a long turnout road initially.

regards,

Martin.

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3rd message | this message only posted: 1 Jul 2014 13:21
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from:
Brian Nicholls
Poole, United Kingdom



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Hi Martin,

Many thanks for your very detailed and clear response. :thumb:

I did/do understand what you have stated in your response, it was just a question if there was any other significance of the TOLP peg position now that the T O exit road can be manually adjusted, but as I say above, you have answered that quite clearly. :)

Many thanks again, all the best,

Brian.

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4th message | this message only posted: 1 Jul 2014 13:44
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from:
Martin Wynne
West Of The Severn, United Kingdom



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Please do not send requests for help direct to me via email or PM.

Post your questions on the forum where everyone can see them and add helpful replies.
Hi Brian,

I should perhaps have mentioned also the TRP position, which puts the peg at the Turnout-road position where the Return curve terminates and the parallel loop begins:



After which you could click do > snap to peg menu item to snap the overall length back (or extend it) to this position.

regards,

Martin.

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5th message | this message only posted: 1 Jul 2014 14:33
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from:
Brian Nicholls
Poole, United Kingdom



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Hi Martin,

Many thanks for the additional information, which is most useful. :thumb:

More reference notes to make in my Templot note book. :)

By the way, I think I may do an update on the 'Illustrated Peg Positions' document I did a little while ago.

Would this be of possible use for the Companion site ?

    (HTML of course)

Many thanks again, all the best,

Brian.

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