修复:V型刀走刀算法对于不封闭线段可能造成最后一段丢失的问题

api.esm.js

@@ -19225,14 +19225,17 @@ function VKnifToolPath(polyline, feedingDepth, knifAngle) {
         if (c2 instanceof Arc)
             c2 = new Line(c2.StartPoint, c2.StartPoint.add(c2.GetFistDeriv(0).multiplyScalar(100)));
         ptsbul.push(d);
-        //圆弧与直线相切,此时不要提刀
-        if (isParallelTo(c1.GetFistDeriv(0), c2.GetFistDeriv(0)))
-            continue;
+
         if (!isClose && i === cus.length - 1) //最后一条
          {
             ptsbul.push({ pt: c1.EndPoint, bul: 0 });
             break;
         }
+
+        //圆弧与直线相切,此时不要提刀
+        if (isParallelTo(c1.GetFistDeriv(0), c2.GetFistDeriv(0)))
+            continue;
+
         //提刀
         for (let x of offsetx) {
             let co1 = c1.GetOffsetCurves(x)[0];