Templot Club Archive 2007-2020                             

topic: 2688Relationship between length of track and offset in s-curve transition
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posted: 15 May 2015 13:09

from:

Godfrey Earnshaw
 
Crawley - United Kingdom

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Hi All,

Does anyone know if it is possible to determine the offset when creating an S-curve transition.

For example if I have two parallel tracks on 60mm centres (4mm scale) can I pick a length of track that will, when S-curve transition is selected, have an offset of 60mm.

I know I can create an offset by having two contra curved tracks coming off the ends of the straight tracks but I wondered if I could do it directly.

Thanks

Godders

posted: 15 May 2015 13:26

from:

Martin Wynne
 
West Of The Severn - United Kingdom

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Hi Godders,

You can set up the offset in a transition curve by adjusting the centres and radii of the 1st and 2nd curves, and then using the make transition function to create the transition curve between them.

However, I think what you are looking for is a slew, not an S-curve transition:

slew_marks.gifslew_marks.gif

All about slewing here:

 http://templot.com/martweb/gs_geometry.htm#slewing

regards,

Martin.

posted: 16 May 2015 07:28

from:

Godfrey Earnshaw
 
Crawley - United Kingdom

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Thanks Martin, just the job

Godders



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