fix the error of change leader

class_model/include/class_model/Leader.h

@@ -46,7 +46,7 @@ private:
     float pre_alt,cur_alt;
     float error_lon,error_lat;
     float leader_pid[3] = {1 , 0.000000000001 ,0};
-    float ignore_small = 0.50;
+    float ignore_small = 0.50 ,limit_speed = 0.5;
     void face2target(float target_heading);   
 };
 #endif // Leader_H

class_model/include/class_model/follower.h

@@ -60,7 +60,7 @@ private:
     float angle = config["formation"]["angle"].as<float>(); 
     float error_lon,error_lat;
     float follower_pid[3] = {1 , 0.00000000001 ,0};// D downsize
-    float ignore_small = 0.50;
+    float ignore_small = 0.50 ,limit_speed = 0.5;
     float m,n,k,cosTheta,pre_m,pre_k,u,LTcos;  // function direct()'s variable
     global_location pre_tar,ref_point;  // function plane()'s variable
     float slope,c,y;              // function plane()'s variable