some changes

1 files changed, 6 insertions, 0 deletions

diff --git a/src/client/util/bezierFit.ts b/src/client/util/bezierFit.ts
index d6f3f2340..bb3b6b1eb 100644
--- a/src/client/util/bezierFit.ts
+++ b/src/client/util/bezierFit.ts
@@ -557,6 +557,12 @@ function FitCubic(d: Point[], first: number, last: number, tHat1: Point, tHat2:
     const negThatCenter = new Point(-tHatCenter.X, -tHatCenter.Y);
     FitCubic(d, splitPoint2D, last, negThatCenter, tHat2, error, result);
 }
+/**
+ * Convert polyline coordinates to a (multi) segment bezier curve
+ * @param d - polyline coordinates
+ * @param error - how much error to allow in fitting (measured in pixels)
+ * @returns 
+ */
 export function FitCurve(d: Point[], error: number) {
     const tHat1 = ComputeLeftTangent(d, 0); //  Unit tangent vectors at endpoints
     const tHat2 = ComputeRightTangent(d, d.length - 1);