# Draw arc between two points with fixed radius

Jake
Global Mapper UserPosts:

**269**Trusted User
Is there a way to draw an arc between two fixed points with a predetermined radius?

A rather lengthy alternative is, I draw a range ring around the two points and determine the two intersection points. Then use the correct intersection point to generate another range ring, convert to a line, split line at point of tangency and keep only the portion running between the two points.

A rather lengthy alternative is, I draw a range ring around the two points and determine the two intersection points. Then use the correct intersection point to generate another range ring, convert to a line, split line at point of tangency and keep only the portion running between the two points.

## Comments

17,238Let me know if I can be of further assistance.

Thanks,

Mike

Global Mapper Guru

gmsupport@bluemarblegeo.com

http://www.globalmapper.com

269Trusted UserTo illustrate what I am talking about take a look at the AutoCAD function. It is the 7th function listed on the right.

http://docs.autodesk.com/ACD/2010/ENU/AutoCAD%202010%20User%20Documentation/files/WS1a9193826455f5ffa23ce210c4a30acaf-6f60.htm

Ideally I would select two points and CREATE ARC LINE dialog would pop up. You could have the option of entering a radius or picking a 3rd point on the screen.

Highway curves are an example where you know the design radius of a curve and you have the coordinates of two points on said curve. I am using it for layout but not a highway.

17,238Thanks,

Mike

Global Mapper Guru

gmsupport@bluemarblegeo.com

http://www.globalmapper.com

269Trusted User