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Subject: 
Help on Equation (Was: modeling monorail ramps)
Newsgroups: 
lugnet.cad.dev
Date: 
Tue, 26 Aug 2003 20:23:20 GMT
Viewed: 
1290 times
  
It looks like the I could create quick mockups for the ramps if only I could
calculte the radius of a thought circle made of MR ramps.

Here's a triangle with a 90 deg's angle AB and the hypotenuse c equlas the
radius:
a=640
b=c-120
c=<unknown>

That gives c^2 = (c-120)^2 + 640^2

or the system:

{ c*sin(v) = 640
{ c*cos(v) = c-120

Is it possible to calculate c from this information?


TIA,
/Tore



Message has 1 Reply:
  Re: Help on Equation (Was: modeling monorail ramps)
 
(...) I calculate c = 5300 / 3 = 1766.667 The math: c^2 = (c-120)^2 + 640^2 c^2 = c^2 - 240*c + 120^2 + 640^2 0 = -240*c + 424000 240*c = 424000 c = 424000 / 240 = 5300 / 3 = 1766.667 Hope this helps. John (21 years ago, 26-Aug-03, to lugnet.cad.dev)

Message is in Reply To:
  modeling monorail ramps (TrackDraw)
 
Track Designer models a pair of monorail upper and lower ramp parts as a single piece. Do you view this as a feature or a restriction? I can't recall seeing half of a ramp unconnected to the other half in a layout. Have you found a need for half a (...) (21 years ago, 21-Aug-03, to lugnet.cad.dev, lugnet.trains)

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