优化:加大圆弧分段数,以提高圆弧显示平滑度

src/Geometry/ExtrudeEdgeGeometry2.ts

@@ -464,14 +464,16 @@ export class CurveTapeShape
     }
 }
 
-const SplitLength = 2;
+const SplitLength = 4;
+const MinSplitCount = 12;
+const MaxSplitCount = 360;
 function SplitCurveParams(cu: ExtureContourCurve): number[]
 {
     let xparams: number[] = [];
     if (cu instanceof Circle)
     {
         let splitCount = cu.Radius / SplitLength;
-        splitCount = clamp(Math.floor(splitCount), 8, 40);
+        splitCount = clamp(Math.floor(splitCount), MinSplitCount, MaxSplitCount);
         for (let i = 0; i < splitCount; i++)
             xparams.push(i / splitCount);
     }
@@ -484,7 +486,7 @@ function SplitCurveParams(cu: ExtureContourCurve): number[]
             {
                 let arc = cu.GetCurveAtIndex(i) as Arc;
                 let splitCount = arc.Radius / SplitLength;
-                splitCount = clamp(Math.floor(splitCount), 8, 40);
+                splitCount = clamp(Math.floor(splitCount), MinSplitCount, MaxSplitCount);
                 if (splitCount === 0) continue;
 
                 let a = Math.PI * 2 / splitCount;