I have an old survey-type drawing (pdf attached) for a street centerline that I would like to draw via COGO traverse. It gives Points of Intersection, Tangent Distance, Delta Angle, and Radius in a table. The legal description references phrases such as "thence N 79-29-30 W to the point of curvature (PC) of a curve... and to the point of tangency (PT)". I'm struggling to get my COGO editing environment to produce results. Anyone care to share their thoughts on how I should go about getting the centerline drawn? Thanks in advance.
Ok - figured this out. For reference, I used this formula along with the windows scientific calculator do convert between DMS and Degrees: For Right-turns: 180 + Delta Angle For Left-turns: 180- Delta Angle This got me the vertex to vertex line, but I still haven't quite figured out how to do the actual centerline with curves intersecting points of tangency and points of curvature.
And the last piece of the puzzle is solved. I used the Curve Calculator tool from the COGO toolbar to add the angle and radius, which gave me the tangent length. Using the given tangent length, I created line segments extending out from the PI's. Then I used the Arc Segement editing tool, snapped to the tangent length lines, then hit "r" key to enter the radius. Done.
