Double Track

Location
Sandbach, Cheshire
Info
Builder of Finescale Signals in 2mm scale to 7mm scale, Trackwork, Turnouts and Layouts.
It threw me for a short while as making double track TS in EM I was trying to match the inside radius to that required, as I was looking at the imperial measurement, it didn't change no matter what spacing I input. However the Metric did!
 
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Martin Wynne

Admin
Location
West of the Severn UK
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Please do not send requests for help direct to me via email.

Post your questions on the forum where everyone can see them and add helpful replies.
It threw me for a short while as making double track TS in EM I was trying to match the inside radius to that required, as I was looking at the imperial measurement, it didn't change no matter what spacing I input. However the Metric did!
@Stephen Freeman

Hi Stephen,

Can you provide a bit more info?

Which dialog or menu item are you talking about? Can you post a screenshot?

What didn't change, the template, the info data, something else?

I can't do much to fix bugs, if it is a bug, from such a cryptic report. :)

cheers,

Martin.
 
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Location
Sandbach, Cheshire
Info
Builder of Finescale Signals in 2mm scale to 7mm scale, Trackwork, Turnouts and Layouts.
The information panel minimum radius -the metric changed when I altered the adjacent track centres but the imperial didn't. Otherwise worked fine.
 
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Martin Wynne

Admin
Location
West of the Severn UK
Info
Please do not send requests for help direct to me via email.

Post your questions on the forum where everyone can see them and add helpful replies.
The information panel minimum radius -the metric changed when I altered the adjacent track centres but the imperial didn't. Otherwise worked fine.
@Stephen Freeman

You are still not giving me much to go on -- my telepathy machine is broken. :)

Is this a turnout template, or plain track?

What were the actual sizes you were using, radius and centres?

Were you using this dialog to set the spacing?

ts_centres1.png


Or this one (spacing in prototype inches):

ts_centres2.png


Or this one (spacing in model mm):

ts_centres3.png


If you have found a bug I want to fix it. But I can't do much without a detailed report of what you were doing and what happened. Because the very first task is to see if I can replicate it -- which at present I can't. Not surprising if I don't know what to do.

What's more, while I was trying to fathom out what you mean, my lunchtime boiled egg boiled dry. :(

cheers,

Martin.
 
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Location
Sandbach, Cheshire
Info
Builder of Finescale Signals in 2mm scale to 7mm scale, Trackwork, Turnouts and Layouts.
Plain track, the outside track radius 15 feet. I was trying to obtain a radius of 14ft 10.25 ins on the new inner track. No matter what the metric measurement was in the info panel it stayed at 178 inches. In the end I just ignored the imperial measurement was and went with the metric equivalent.
 
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Martin Wynne

Admin
Location
West of the Severn UK
Info
Please do not send requests for help direct to me via email.

Post your questions on the forum where everyone can see them and add helpful replies.
@Stephen Freeman

Thanks Stephen. Now that you have told me the actual radius, I know what the problem is. The code contains this line:

if rmin_inch>100 then num_dec:=0; // don't show fractional inches over 100"

That's been there since the beginning of time. When I was writing it, the screens were very small and there wasn't space for more than 3 characters and a decimal point. The imperial dimension was only ever intended as an approximate guide, all model working is normally done in mm. So I removed any decimal places over 100" to save space. What you are seeing is the effect of that rounding truncation -- Templot is rounding what you see to the nearest whole inch. Likewise the mm dimension shown there is rounded to the nearest mm.

There is more space nowadays so I have removed that line from the code. You are the first person to notice it 22 years. Thanks for finding and reporting it. :)

Inches now show up to 2 decimal places, and I have also added one decimal place to the mm dimension, to keep it comparable:

ts_centres4.png


Not everyone will be happy with that because it makes it more difficult to read at a glance while watching something else. So I will make it (yet another) user option.

cheers,

Martin.
 
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Martin Wynne

Admin
Location
West of the Severn UK
Info
Please do not send requests for help direct to me via email.

Post your questions on the forum where everyone can see them and add helpful replies.
the outside track radius 15 feet. I was trying to obtain a radius of 14ft 10.25 ins on the new inner track
@Stephen Freeman

p.s. Stephen,

That's a spacing of only 1.75" = 44.45mm. Which is slightly under the scale minimum 6ft way of 134" centres = 44.67mm.

Since that's the default spacing for EM in Templot, I'm puzzled why you didn't simply go with that?

Martin.
 
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