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When digitizing a parcel from a legal description, sometimes a curve greater than 180 degrees is described, such as at the end of a cul-de-sac. In a parcel traverse, a curve can be defined in terms of a Bearing, Radius, and Chord. For instance:
When viewing the parcel drawing, note the position of the center point of the arc; it is to the left of the curve. The desired center point is on on the other side of the curve, with the arc drawn in the opposite direction (and not showing). The solution is to use the negative of the chord value. This produces an arc greater than 180 degrees.