proper const/non-const getters

include/laser/capture/capture_laser_3d.h

@@ -41,7 +41,8 @@ class CaptureLaser3d : public CaptureBase
   public:
     CaptureLaser3d(const TimeStamp& _timestamp, SensorBasePtr _sensor, pcl::PointCloud<pcl::PointXYZ>::Ptr _point_cloud);
     ~CaptureLaser3d();
-    pcl::PointCloud<pcl::PointXYZ>::Ptr getPointCloud() const;
+    pcl::PointCloud<pcl::PointXYZ>::Ptr getPointCloud();
+    pcl::PointCloud<pcl::PointXYZ>::ConstPtr getPointCloud() const;
 
     
   private:

src/capture/capture_laser_3d.cpp

@@ -33,7 +33,12 @@ CaptureLaser3d::CaptureLaser3d(const TimeStamp& _timestamp, SensorBasePtr _senso
 
 CaptureLaser3d::~CaptureLaser3d() {}
 
-pcl::PointCloud<pcl::PointXYZ>::Ptr CaptureLaser3d::getPointCloud() const
+pcl::PointCloud<pcl::PointXYZ>::Ptr CaptureLaser3d::getPointCloud()
+{
+    return point_cloud_;
+}
+
+pcl::PointCloud<pcl::PointXYZ>::ConstPtr CaptureLaser3d::getPointCloud() const
 {
     return point_cloud_;
 }