# By Arc to Point

[By Arc to Point]command extends(extrapolates) an existing curve as an arc shape curve. The extending curve is so generated that the two tangents and the two curvatures are continuous at the connectiong points.

## Step 1

For the prompt "Specify around an end point of a curve", mouse-click around an end point of a target curve to extend.

## Step 2

For the prompt Specify destination point, specify an end point of the extending part of curve.