避免多段线切割时出现的重复点问题

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

@@ -48,6 +48,32 @@ Array [
 `;
 
 exports[`单刀 2`] = `
+Array [
+  Object {
+    "bul": 0,
+    "pt": Vector2 {
+      "x": 0,
+      "y": 0,
+    },
+  },
+  Object {
+    "bul": 0.41421356237309503,
+    "pt": Vector2 {
+      "x": 5,
+      "y": 0,
+    },
+  },
+  Object {
+    "bul": 0,
+    "pt": Vector2 {
+      "x": 7.5,
+      "y": 2.5,
+    },
+  },
+]
+`;
+
+exports[`单刀 3`] = `
 Array [
   Object {
     "bul": 0.41421356237309503,
@@ -84,6 +110,11 @@ Array [
       "y": 0,
     },
   },
+]
+`;
+
+exports[`单刀 4`] = `
+Array [
   Object {
     "bul": 0,
     "pt": Vector2 {
@@ -92,23 +123,23 @@ Array [
     },
   },
   Object {
-    "bul": 0.41421356237309503,
+    "bul": 1,
     "pt": Vector2 {
       "x": 5,
       "y": 0,
     },
   },
   Object {
-    "bul": 0,
+    "bul": -1,
     "pt": Vector2 {
-      "x": 7.5,
-      "y": 2.5,
+      "x": 5,
+      "y": 5,
     },
   },
 ]
 `;
 
-exports[`单刀 3`] = `
+exports[`单刀 5`] = `
 Array [
   Object {
     "bul": -0.9999999999999999,
@@ -138,6 +169,11 @@ Array [
       "y": 0,
     },
   },
+]
+`;
+
+exports[`单刀 6`] = `
+Array [
   Object {
     "bul": 0,
     "pt": Vector2 {
@@ -153,16 +189,23 @@ Array [
     },
   },
   Object {
-    "bul": -1,
+    "bul": -0.41421356237309503,
     "pt": Vector2 {
       "x": 5,
       "y": 5,
     },
   },
+  Object {
+    "bul": 0,
+    "pt": Vector2 {
+      "x": 2.5,
+      "y": 7.5,
+    },
+  },
 ]
 `;
 
-exports[`单刀 4`] = `
+exports[`单刀 7`] = `
 Array [
   Object {
     "bul": -0.41421356237309503,
@@ -192,6 +235,11 @@ Array [
       "y": 0,
     },
   },
+]
+`;
+
+exports[`单刀 8`] = `
+Array [
   Object {
     "bul": 0,
     "pt": Vector2 {
@@ -207,7 +255,7 @@ Array [
     },
   },
   Object {
-    "bul": -0.41421356237309503,
+    "bul": -1,
     "pt": Vector2 {
       "x": 5,
       "y": 5,
@@ -216,14 +264,14 @@ Array [
   Object {
     "bul": 0,
     "pt": Vector2 {
-      "x": 2.5,
-      "y": 7.5,
+      "x": 5,
+      "y": 10,
     },
   },
 ]
 `;
 
-exports[`单刀 5`] = `
+exports[`单刀 9`] = `
 Array [
   Object {
     "bul": 0,
@@ -246,34 +294,6 @@ Array [
       "y": 0,
     },
   },
-  Object {
-    "bul": 0,
-    "pt": Vector2 {
-      "x": 0,
-      "y": 0,
-    },
-  },
-  Object {
-    "bul": 1,
-    "pt": Vector2 {
-      "x": 5,
-      "y": 0,
-    },
-  },
-  Object {
-    "bul": -1,
-    "pt": Vector2 {
-      "x": 5,
-      "y": 5,
-    },
-  },
-  Object {
-    "bul": 0,
-    "pt": Vector2 {
-      "x": 5,
-      "y": 10,
-    },
-  },
 ]
 `;
 
@@ -361,13 +381,6 @@ Array [
       "y": 0,
     },
   },
-  Object {
-    "bul": 0,
-    "pt": Vector2 {
-      "x": 0,
-      "y": 0,
-    },
-  },
   Object {
     "bul": 0.41421356237309503,
     "pt": Vector2 {
@@ -415,13 +428,6 @@ Array [
       "y": 0,
     },
   },
-  Object {
-    "bul": 0,
-    "pt": Vector2 {
-      "x": 0,
-      "y": 0,
-    },
-  },
   Object {
     "bul": 1,
     "pt": Vector2 {
@@ -469,13 +475,6 @@ Array [
       "y": 0,
     },
   },
-  Object {
-    "bul": 0,
-    "pt": Vector2 {
-      "x": 0,
-      "y": 0,
-    },
-  },
   Object {
     "bul": 1,
     "pt": Vector2 {
@@ -523,13 +522,6 @@ Array [
       "y": 0,
     },
   },
-  Object {
-    "bul": 0,
-    "pt": Vector2 {
-      "x": 0,
-      "y": 0,
-    },
-  },
   Object {
     "bul": 1,
     "pt": Vector2 {
@@ -1087,13 +1079,6 @@ Array [
       "y": 0,
     },
   },
-  Object {
-    "bul": 0,
-    "pt": Vector2 {
-      "x": 0,
-      "y": 0,
-    },
-  },
   Object {
     "bul": 1,
     "pt": Vector2 {
@@ -1267,13 +1252,6 @@ Array [
       "y": 0,
     },
   },
-  Object {
-    "bul": 0,
-    "pt": Vector2 {
-      "x": 0,
-      "y": 0,
-    },
-  },
   Object {
     "bul": 1,
     "pt": Vector2 {

src/DatabaseServices/Polyline.ts

@@ -613,6 +613,9 @@ export class Polyline extends Curve
         if (this.m_ClosedMark && !hasZeroParam)
         {
             let lastPl = pls[pls.length - 1];
+            if (equalv2(arrayLast(lastPl.m_LineData).pt, pls[0].m_LineData[0].pt))
+                lastPl.m_LineData.pop();
+
             lastPl.m_LineData.push(...pls[0].m_LineData);
 
             pls.shift();