圆弧面积测试

__test__/Polyline/__snapshots__/polyline.test.ts.snap

@@ -8,6 +8,8 @@ Vector3 {
 }
 `;
 
+exports[`多段线 存在大圆弧的多段线面积 1`] = `-24.019436375469752`;
+
 exports[`多段线 最近点精度 1`] = `
 Vector3 {
   "x": 1.987500976448074,

__test__/Polyline/polyline.test.ts

@@ -3,6 +3,7 @@ import { Vector2, Vector3 } from 'three';
 import { Polyline } from '../../src/DatabaseServices/Polyline';
 import { equal, equaln } from '../../src/Geometry/GeUtils';
 import { CADFile } from '../../src/DatabaseServices/CADFile';
+import { Vec2DTo3D } from '../../src/Common/CurveUtils';
 
 test("多段线点获取参数", () =>
 {
@@ -498,4 +499,18 @@ describe('多段线', () =>
         let p = pl.GetPointAtParam(3);
         expect(p).toMatchSnapshot();
     });
+
+    test('存在大圆弧的多段线面积', () =>
+    {
+        let f = new CADFile();
+        f.Data =
+            [1, ["Polyline", 1, 1, 1606, false, 7, -1, [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, -19.17745164184445, -6.335408131680751, 0, 1], 2, 5, [11.884352072596577, -75.64730611519322], -1.9523252757782086, [16.25360183965801, -70.58112080246555], 0, [14.621427950114992, -70.9720172143345], 1.8583004340984604, [11.834326201222096, -73.95002751582643], 0, [11.884352072596577, -75.64730611519322], 0, false]]
+
+        f.Read();
+
+        let pl = f.ReadObject() as Polyline;
+
+        expect(pl.Area2).toMatchSnapshot();
+    });
+
 })