(1).If I know two bearings from the ends of a curve to the central point, one of the ends of the curve and the arc length, how to solve it?
(2). How to proportion an entity by reference to a similar line or curve.
Thanks lot.
Help for solving curve
Moderators: Brian Sloman, Jason Poitras, James Johnston

 Posts: 1395
 Joined: Fri Nov 08, 2002 12:18 pm
 Location: Corbeil, Ontario, Canada
 Contact:
Curve Calculations
1) If you know the two bearings then you have the delta (internal angle between the two bearings). With the Delta and the Arc length, you can use our Curve Problem Solver (MsTools menu > Curves) to calculate the rest of the info for the curve. Then via COGO you should be able to set the points to define the curve and inverse the curve to draw it.
2) I am not sure what you are asking here. Can you provide more details on what you have and what you are calculating? We do have a proportioning routine under the MsCOGO menu, would this help you in your case?
Cheers,
2) I am not sure what you are asking here. Can you provide more details on what you have and what you are calculating? We do have a proportioning routine under the MsCOGO menu, would this help you in your case?
Cheers,
Glen W. Cameron, C.E.T.
City of North Bay, Ontario
City of North Bay, Ontario

 Posts: 1395
 Joined: Fri Nov 08, 2002 12:18 pm
 Location: Corbeil, Ontario, Canada
 Contact:
Scale
Try the SCALE command and when it asks for the scale factor pick on the Reference option on the option bar  then you can tell it the original size and a new size to go to. That may do what you are asking.
Cheers,
Cheers,
Glen W. Cameron, C.E.T.
City of North Bay, Ontario
City of North Bay, Ontario

 Posts: 1395
 Joined: Fri Nov 08, 2002 12:18 pm
 Location: Corbeil, Ontario, Canada
 Contact:
scaling
The reference option allows for 2 picks of the screen for scaling, so try using the chord distance for the arc. I don't see any other way of doing what you are asking.
To be honest, I am not sure what or why you are doing this to start with Do you have a real world example?
Cheers,
To be honest, I am not sure what or why you are doing this to start with Do you have a real world example?
Cheers,
Glen W. Cameron, C.E.T.
City of North Bay, Ontario
City of North Bay, Ontario