修复:椭圆绘制的点个数过多导致的卡顿

__test__/Geometry/__snapshots__/EdgeGeometry.test.ts.snap

@@ -1,6 +1,6 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`EdgeGeometry生成 1`] = `236`;
+exports[`EdgeGeometry生成 1`] = `148`;
 
 exports[`EdgeGeometry生成 2`] = `410`;
 

src/DatabaseServices/Shape2.ts

@@ -32,7 +32,7 @@ export class Shape2 extends Shape
                     let splitCount = tempArc.Radius / ARC_SplitLength;
                     splitCount = clamp(Math.floor(splitCount * 0.5) * 2, Arc_MinSplitCount, ARC_MaxSplitCount);
 
-                    resolution = Math.max(2, Math.abs(Math.ceil((tempArc.AllAngle * 0.5) / Math.PI)) * splitCount);
+                    resolution = Math.max(2, Math.ceil(Math.abs((tempArc.AllAngle * 0.5) / Math.PI) * splitCount * 0.5)) * 2;
                 }
                 else
                     resolution = divisions * 2;