Templot Club Archive 2007-2020
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posted: 11 Jul 2009 06:24 from: BruceNordstrand
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I am slowly working my way through my plan but this kind of thing is driving me nuts. In the attached file I am attempting to create a transition from the straight track to the curved one. Both sections of track are aligned on the background scan how I want them. Clicking on the straight section and selectiing transition causes Templot to tell me it can't do it - WHY? These are the kinds of things that are driving me nuts daily. I can see no difference in this than the videos I have watched in an attempt to grasp Templot yet it doesn't work. Any and all help appreciated... Cheers Bruce |
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posted: 11 Jul 2009 08:20 from: Martin Wynne
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BruceNordstrand wrote: I am slowly working my way through my plan but this kind of thing is driving me nuts. In the attached file I am attempting to create a transition from the straight track to the curved one. Both sections of track are aligned on the background scan how I want them. Clicking on the straight section and selectiing transition causes Templot to tell me it can't do it - WHY?Hi Bruce, A transition is mathematically impossible here because the track centre-lines are overlapping. In order to create a transition there must be a gap between the tracks before you start. 2_110305_280000000.png  If you put the fixing peg at the top end of the control template, and then reduce the radius slightly (F6 mouse action) until there is a gap between the centre-lines, it will then be possible to create a transition curve between them. The larger the gap, so the longer will be the resulting transition zone. There is a tutorial explaining this at: http://www.templot.com/martweb/info_files/make_trans.htm It can be helpful to temporarily change the control template to a centre-line only -- geometry > track centre-lines only menu item. (N.B. occasionally when one template is straight, Templot gets confused. This can be cured by swapping the templates, i.e. put the control template on the background and delete the background template to the control template.) regards, Martin. |
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posted: 11 Jul 2009 08:38 from: BruceNordstrand
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Thanks Martin, I'll do as suggested and have another go. For me to actually be using Templot is a miracle given that I have now been at it for 3 days - a record for me!  I am probably not using it to it's full potential yet though as I am "cheating" by creating curves to my desired radius first, placing them over the plan, and then connecting them to straight track with transitions. Still, it is giving me a usable plan (to this point anyway) so I will persevere with my method for now. Maybe one day I will be better at using all the functionality properly.... Cheers Bruce |
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posted: 11 Jul 2009 09:06 from: BruceNordstrand
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Thanks Martin, I'll do as suggested and have another go. For me to actually be using Templot is a miracle given that I have now been at it for 3 days - a record for me! I am probably not using it to it's full potential yet though as I am "cheating" by creating curves to my desired radius first, placing them over the plan, and then connecting them to straight track with transitions. Still, it is giving me a usable plan (to this point anyway) so I will persevere with my method for now. Maybe one day I will be better at using all the functionality properly.... Cheers Bruce |
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posted: 11 Jul 2009 12:08 from: Alan Turner
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Because the centre lines cross each other. Alan |
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