Half length for capsule, cone, cylinder

include/hpp/fcl/shape/geometric_shapes.h

@@ -149,10 +149,10 @@ class Capsule : public ShapeBase
 public:
   Capsule(FCL_REAL radius_, FCL_REAL lz_) : ShapeBase(), radius(radius_), lz(lz_)
   {
+    lz = 0;
+    HalfLength = lz/2;
   }
 
- // Capsule::Capsule() : HalfLength(lz/2), lz(0){} 
-
   /// @brief Radius of capsule 
   FCL_REAL radius;
 
@@ -194,10 +194,10 @@ class Cone : public ShapeBase
 public:
   Cone(FCL_REAL radius_, FCL_REAL lz_) : ShapeBase(), radius(radius_), lz(lz_)
   {
+    lz = 0;
+    HalfLength = lz/2;
   }
 
-  //Cone::Cone() : HalfLength(lz/2), lz(0){} 
-
   /// @brief Radius of the cone 
   FCL_REAL radius;
 
@@ -241,9 +241,9 @@ class Cylinder : public ShapeBase
 public:
   Cylinder(FCL_REAL radius_, FCL_REAL lz_) : ShapeBase(), radius(radius_), lz(lz_)
   {
+    lz = 0;
+    HalfLength = lz/2;
   }
-
- // Cylinder::Cylinder() : HalfLength(lz/2), lz(0){} 
   
   /// @brief Radius of the cylinder 
   FCL_REAL radius;