diff --git a/WireRouting_DLL/Astar.cpp b/WireRouting_DLL/Astar.cpp
index 0266fe2..c760712 100644
--- a/WireRouting_DLL/Astar.cpp
+++ b/WireRouting_DLL/Astar.cpp
@@ -404,6 +404,8 @@ void Astar::search()
 			bool updatePreBranchPoint = false;
 			bool updateNextBranchPoint = false;
 			double tempPos1 = 0, tempPos2 = 0;
+
+				// 特殊处理分支点
 			if (points[xs].type == 1 || points[xs].type == 2)
 			{
 				int bid = points[xs].ref;
@@ -460,7 +462,7 @@ void Astar::search()
 	}
 	int top = 0;
 	int tag = T * 2;
-	while (pre[tag])
+		while (pre[tag]) // pre[tag] 值为0导致无结果，
 	{
 		st[++top] = tag;
 		tag = pre[tag];
diff --git a/WireRouting_DLL/BVH.cpp b/WireRouting_DLL/BVH.cpp
index 3a0ffae..54725c7 100644
--- a/WireRouting_DLL/BVH.cpp
+++ b/WireRouting_DLL/BVH.cpp
@@ -1,6 +1,8 @@
 #include "pch.h" // use stdafx.h in Visual Studio 2017 and earlier
 #include "BVH.h"
 
+BVH bvh;
+
 bool PointInTri(Point3 &P, Point3 &P0, Point3 &P1, Point3 &P2)
 {
 	double area1 = Area2(P, P0, P1);
diff --git a/WireRouting_DLL/BVH.h b/WireRouting_DLL/BVH.h
index f0d433a..e0a1709 100644
--- a/WireRouting_DLL/BVH.h
+++ b/WireRouting_DLL/BVH.h
@@ -72,3 +72,5 @@ struct BVH_API BVH
 
 	void read_stl(string filename);
 };
+
+extern BVH_API BVH bvh;
\ No newline at end of file
diff --git a/WireRouting_DLL/BasicChannel.cpp b/WireRouting_DLL/BasicChannel.cpp
index ef8ea71..2bf2f9b 100644
--- a/WireRouting_DLL/BasicChannel.cpp
+++ b/WireRouting_DLL/BasicChannel.cpp
@@ -1,6 +1,8 @@
 #include "pch.h" // use stdafx.h in Visual Studio 2017 and earlier
 #include "BasicChannel.h"
 
+BasicChannel basicChannel;
+
 // 仅仅根据卡箍的相对位置创建近似的通道
 void BasicChannel::createChannel()
 {
@@ -570,8 +572,12 @@ void BasicChannel::printSingleBundle(int i, ofstream &ofs)
 		}
 		if (inOut != 0)
 			tp.reverse();
+			//------------------------mark------------------------
 		ofs << tp.x << "  " << tp.y << "  " << tp.z << "  ";
 		ofs << tp.dx << "  " << tp.dy << "  " << tp.dz << endl;
+			// for blender input
+			// ofs << tp.x * 100 << "  " << tp.y * 100 << "  " << tp.z * 100 << "  ";
+			// ofs << tp.dx * 100 << "  " << tp.dy * 100 << "  " << tp.dz * 100 << endl;
 	}
 	ofs << partBranchPoint.size() << endl;
 	for (int j = 0; j < partBranchPoint.size(); j++)
diff --git a/WireRouting_DLL/BasicChannel.h b/WireRouting_DLL/BasicChannel.h
index 7b064e7..ab7adcf 100644
--- a/WireRouting_DLL/BasicChannel.h
+++ b/WireRouting_DLL/BasicChannel.h
@@ -30,6 +30,13 @@ struct BASIC_CHANNEL_API BasicChannel
 	int basicChannelNum;											 // 基本通道数量
 	map<int, BundleNode *> PointConnectedTobranchPoint[MAXPointNum]; // 连接到分支点的点
 
+	vector<vector<pair<int, int>>> resClip;
+	vector<vector<int>> resBranchPoint;
+	vector<int> startBranchPoint;
+	vector<int> endBranchPoint;
+	vector<int> BundleConnectedToBranchPoint[MAXPointNum]; // 连接到分支点的通道
+	int Out[N];
+
 	// 仅仅根据卡箍的相对位置创建近似的通道
 	void createChannel();
 
@@ -88,15 +95,10 @@ struct BASIC_CHANNEL_API BasicChannel
 	// 加入一条路径来更新通道数据
 	void addPath(Path path);
 
-	vector<vector<pair<int, int>>> resClip;
-	vector<vector<int>> resBranchPoint;
-	vector<int> startBranchPoint;
-	vector<int> endBranchPoint;
-	vector<int> BundleConnectedToBranchPoint[MAXPointNum]; // 连接到分支点的通道
-	int Out[N];
-
 	void printSingleBundle(int i, ofstream &ofs);
 
 	// 把bundle信息按格式要求打印出来
 	void printBundle(string resultfile, bool basic = false);
 };
+
+extern BASIC_CHANNEL_API BasicChannel basicChannel;
\ No newline at end of file
diff --git a/WireRouting_DLL/BasicEdge.cpp b/WireRouting_DLL/BasicEdge.cpp
index 47df32c..b5068b0 100644
--- a/WireRouting_DLL/BasicEdge.cpp
+++ b/WireRouting_DLL/BasicEdge.cpp
@@ -1,9 +1,7 @@
 #include "pch.h" // use stdafx.h in Visual Studio 2017 and earlier
 #include "BasicEdge.h"
 
-BVH bvh;
-
-BasicChannel basicChannel;
+BasicEdge basicEdge;
 
 // 预处理分支点和卡箍之间的连线关系
 void BasicEdge::buildEdgeBetweenClipAndBranchPoint()
diff --git a/WireRouting_DLL/BasicEdge.h b/WireRouting_DLL/BasicEdge.h
index e3a91a1..c6cbf44 100644
--- a/WireRouting_DLL/BasicEdge.h
+++ b/WireRouting_DLL/BasicEdge.h
@@ -20,10 +20,6 @@
 #include <sstream>
 using namespace std;
 
-extern BVH BASIC_EDGE_API bvh;
-
-extern BasicChannel BASIC_EDGE_API basicChannel;
-
 // 存储卡箍与卡箍之间，卡箍与分支点之间，分支点与分支点之间的边关系
 struct BASIC_EDGE_API BasicEdge
 {
@@ -69,4 +65,6 @@ public:
 	// 根据新的路径更新边信息
 public:
 	void addPath(Path path);
-};
\ No newline at end of file
+};
+
+extern BASIC_EDGE_API BasicEdge basicEdge;
diff --git a/WireRouting_DLL/BranchPoint.cpp b/WireRouting_DLL/BranchPoint.cpp
index d45d363..afd362e 100644
--- a/WireRouting_DLL/BranchPoint.cpp
+++ b/WireRouting_DLL/BranchPoint.cpp
@@ -1,6 +1,8 @@
 #include "pch.h" // use stdafx.h in Visual Studio 2017 and earlier
 #include "BranchPoint.h"
 
+BranchPointSet branchPointSet;
+
 void BranchPoint::init()
 {
 	l = 0;
@@ -87,6 +89,14 @@ void BranchPoint::fix()
 		return;
 	fixed = true;
 	t = tempt[mode];
+		/*
+		if(pb1!=NULL){
+			pb1->pushL(t*Dis+MinBranchPointDistance-r*Dis);
+		}
+		if(pb2!=NULL){
+			pb2->pushR(l*Dis-(t*Dis-MinBranchPointDistance));
+		}
+		*/
 	cout << "***********";
 	if (!Equal(t, l) && !Equal(t, r))
 		cout << "-------";
@@ -153,11 +163,14 @@ double BranchPoint::computeWeight(P &p, int inOut, bool reverse)
 // 记录分支点最优位置
 void BranchPoint::recordPos(int mode)
 {
+	// if(!Equal(t,l)&&!Equal(t,r))cout<<"-------"<<endl;
+	// else t=(l+r)/2;
 	tempt[mode] = t;
 }
 
 void BranchPoint::check(int i)
 {
+	// if(!Equal(t,l)&&!Equal(t,r))cout<<"--"<<i<<"--"<<endl;
 }
 
 BranchPointSet::BranchPointSet()
@@ -166,7 +179,7 @@ BranchPointSet::BranchPointSet()
 }
 
 // 添加一个分支点,并返回指向它的指针
-BranchPoint *BranchPointSet::addBranchPoint(Clip *pc1, Clip *pc2, int bundleNodeID)
+BranchPoint* BranchPointSet::addBranchPoint(Clip* pc1, Clip* pc2, int bundleNodeID)
 {
 	branchPointNum++;
 	b[branchPointNum] = BranchPoint(pc1, pc2);
@@ -178,7 +191,7 @@ BranchPoint *BranchPointSet::addBranchPoint(Clip *pc1, Clip *pc2, int bundleNode
 }
 
 // 获取指向编号为id的分支点的指针
-BranchPoint *BranchPointSet::getBranchPointPointer(int id)
+BranchPoint* BranchPointSet::getBranchPointPointer(int id)
 {
 	assert(id >= 1 && id <= branchPointNum);
 	return &b[id];
diff --git a/WireRouting_DLL/BranchPoint.h b/WireRouting_DLL/BranchPoint.h
index 8ca59db..2fc7c3f 100644
--- a/WireRouting_DLL/BranchPoint.h
+++ b/WireRouting_DLL/BranchPoint.h
@@ -99,4 +99,6 @@ struct BRANCH_POINT_API BranchPointSet
 
 	// 获取指向编号为id的分支点的指针
 	BranchPoint *getBranchPointPointer(int id);
-};
\ No newline at end of file
+};
+
+extern BRANCH_POINT_API BranchPointSet branchPointSet;
\ No newline at end of file
diff --git a/WireRouting_DLL/BasicTree.cpp b/WireRouting_DLL/BranchTree.cpp
similarity index 99%
rename from WireRouting_DLL/BasicTree.cpp
rename to WireRouting_DLL/BranchTree.cpp
index b9ae790..b0c966b 100644
--- a/WireRouting_DLL/BasicTree.cpp
+++ b/WireRouting_DLL/BranchTree.cpp
@@ -1,8 +1,6 @@
 #include "pch.h" // use stdafx.h in Visual Studio 2017 and earlier
 #include "BranchTree.h"
 
-BasicEdge basicEdge;
-
 void Edge::clear()
 {
 	to = 0;
diff --git a/WireRouting_DLL/BranchTree.h b/WireRouting_DLL/BranchTree.h
index 83dbe4d..25c7f01 100644
--- a/WireRouting_DLL/BranchTree.h
+++ b/WireRouting_DLL/BranchTree.h
@@ -20,8 +20,6 @@
 #include <sstream>
 using namespace std;
 
-extern BasicEdge BRANCH_TREE_API basicEdge;
-
 struct BRANCH_TREE_API Edge
 {
 	vector<string> wirenames;
diff --git a/WireRouting_DLL/Path.cpp b/WireRouting_DLL/Path.cpp
index bd04600..7a0ed08 100644
--- a/WireRouting_DLL/Path.cpp
+++ b/WireRouting_DLL/Path.cpp
@@ -2,7 +2,6 @@
 #include "Path.h"
 
 ClipSet clipSet;
-BranchPointSet branchPointSet;
 
 P dirP(P &A)
 {
diff --git a/WireRouting_DLL/Path.h b/WireRouting_DLL/Path.h
index c5344f3..440f40c 100644
--- a/WireRouting_DLL/Path.h
+++ b/WireRouting_DLL/Path.h
@@ -23,7 +23,6 @@
 using namespace std;
 
 extern ClipSet PATH_API clipSet;
-extern BranchPointSet PATH_API branchPointSet;
 
 extern P PATH_API dirP(P &A);
 
diff --git a/WireRouting_DLL/WireRouting_DLL.vcxproj b/WireRouting_DLL/WireRouting_DLL.vcxproj
index ace91d3..5eef333 100644
--- a/WireRouting_DLL/WireRouting_DLL.vcxproj
+++ b/WireRouting_DLL/WireRouting_DLL.vcxproj
@@ -166,8 +166,8 @@
     <ClCompile Include="Astar.cpp" />
     <ClCompile Include="BasicChannel.cpp" />
     <ClCompile Include="BasicEdge.cpp" />
-    <ClCompile Include="BasicTree.cpp" />
     <ClCompile Include="BranchPoint.cpp" />
+    <ClCompile Include="BranchTree.cpp" />
     <ClCompile Include="Bundle.cpp" />
     <ClCompile Include="BVH.cpp" />
     <ClCompile Include="Clip.cpp" />
diff --git a/WireRouting_DLL/WireRouting_DLL.vcxproj.filters b/WireRouting_DLL/WireRouting_DLL.vcxproj.filters
index dd614d0..e89cde6 100644
--- a/WireRouting_DLL/WireRouting_DLL.vcxproj.filters
+++ b/WireRouting_DLL/WireRouting_DLL.vcxproj.filters
@@ -116,14 +116,14 @@
     <ClCompile Include="BasicEdge.cpp">
       <Filter>源文件</Filter>
     </ClCompile>
-    <ClCompile Include="BasicTree.cpp">
-      <Filter>源文件</Filter>
-    </ClCompile>
     <ClCompile Include="BasicChannel.cpp">
       <Filter>源文件</Filter>
     </ClCompile>
     <ClCompile Include="Astar.cpp">
       <Filter>源文件</Filter>
     </ClCompile>
+    <ClCompile Include="BranchTree.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>
\ No newline at end of file