diff --git a/GISDlg.cpp b/GISDlg.cpp
index 9ecea44..6dfc98d 100644
--- a/GISDlg.cpp
+++ b/GISDlg.cpp
@@ -71,7 +71,7 @@ CGISDlg::CGISDlg(CWnd* pParent /*=NULL*/)
 
 	
 
-	for (int i = 0;i<3;i++)
+	for (int i = 0;i<255;i++)
 	{
 		//航迹标绘图层ID
 		m_flyTrackLayerID[i] = -1;
@@ -1086,7 +1086,7 @@ void CGISDlg::OnEraseTrack()
  //清除航迹
 void CGISDlg::EraseTrack(int uavid)
 {
-	if (uavid<0||uavid>2)
+	if (uavid<0||uavid>255)
 	{
 		return;
 	}
@@ -3729,7 +3729,7 @@ void CGISDlg::AddTargetPoint(const int nPt, const double dX, const double dY)
 //说明：创建专门用于绘制无人机的矢量面图层，每次先删除上次标绘的Shp，再重新标绘
 void CGISDlg::DrawUAV(int uavid, const double dX, const double dY, const double yaw,bool control)
 {
-	if (uavid<0||uavid>2)
+	if (uavid<0||uavid>255)
 	{
 		return;
 	}
diff --git a/GISDlg.h b/GISDlg.h
index f69b554..a2e26dc 100644
--- a/GISDlg.h
+++ b/GISDlg.h
@@ -327,14 +327,14 @@ private:
 	bool m_bHaveAddMap;	
 
 	//航迹标绘图层ID
-	long m_flyTrackLayerID[3];
+	long m_flyTrackLayerID[255];
 
 	//UAV航迹标绘图层ID
-	long m_UAVFlyTrackLayerID[3];
+	long m_UAVFlyTrackLayerID[255];
 	long m_UAVFlyTrackLayerID_ADS[MAX_PLANE_NUM_ADS];
 
 	//是否已经标绘了无人机的飞行轨迹
-	bool m_bFirstDrawUAVTrack[3];
+	bool m_bFirstDrawUAVTrack[255];
 	bool m_bFirstDrawUAVTrack_ADS[MAX_PLANE_NUM_ADS];
 
 	//地图显示区宽度、高度倒数
@@ -514,7 +514,7 @@ private:
 
 	long m_CircleGuideLayer; //盘旋引导图层
 
-	int m_drawTrackPtNum[3];
+	int m_drawTrackPtNum[255];
 
 	//新航线设计的航点的最大个数	2016.01.06
 	int m_MaxNumofLinePt;