The question was how to calculate the radius of curvature in each point on the tooth surface. In other word if DDS can calculate first, second and n-order derivatives along the wires on the tooth surface mesh. The answer is yes. Below are some calculation results for spiral bevel gears. Red color shows the area with the smallest radius.
Red color show the area with the smallest radius.
Red color shows the area with the smallest radius. Red color shows the area with the smallest radius. Red color show the area with the smallest radius. Red color shows the area with the smallest radius. Red color show the area with the smallest radius.