fix #IKI74 修正trim取点错误的问题,多段线切割时,去除重复点和整数化临界点.

src/Add-on/Trim.ts

@@ -91,7 +91,7 @@ export class Command_Trim implements Command
                             let breakCus = lastCu.GetSplitCurves(breakParams);
                             if (breakCus.length === 2)
                             {
-                                let mindP = breakCu.GetPointAtParam(0.5);
+                                let mindP = breakCu.GetPointAtParam(breakCu.EndParam * 0.5);
                                 if (breakCus[0].PtOnCurve(mindP))
                                     lastCu = breakCus[1];
                                 else

src/DatabaseServices/Polyline.ts

@@ -1,7 +1,7 @@
 import * as THREE from 'three';
 import { Box3, Geometry, Matrix4, Object3D, Vector2, Vector3 } from 'three';
 import { CreateBoardUtil } from '../ApplicationServices/mesh/createBoard';
-import { arrayLast } from '../Common/ArrayExt';
+import { arrayLast, arrayRemoveDuplicateBySort } from '../Common/ArrayExt';
 import { ColorMaterial } from '../Common/ColorPalette';
 import { Vec2DTo3D, Vec3DTo2D, getDeterminantFor2V } from '../Common/CurveUtils';
 import { matrixAlignCoordSys } from '../Common/Matrix4Utils';
@@ -399,13 +399,19 @@ export class Polyline extends Curve
         else
             params = param;
 
-        //校验参数在曲线中
-        params = params.filter(p => this.ParamOnCurve(p));
+        //校验参数在曲线中,修正参数
+        params = params.filter(p => this.ParamOnCurve(p))
+            .map(a =>
+            {
+                if (equaln(a, Math.floor(a + 0.5), 1e-6))
+                    return Math.floor(a + 0.5);
+                return a;
+            });
         //排序
         params.sort((a, b) => a - b);
         //必须加入最后一个参数,保证切割后的曲线完整
         params.push(this.EndParam);
-        params = [...new Set(params)];
+        arrayRemoveDuplicateBySort(params, (e1, e2) => equaln(e1, e2, 1e-6));
         if (params.length === 0)
             return [];