Add param for cloud_in and scan topic, and yaml configuration

config/pointcloud2_to_laserscan_param.yaml

@@ -0,0 +1,21 @@
+target_frame: hokuyo3d # Leave disabled to output scan in pointcloud frame
+cloud_in: /hokuyo3d/hokuyo_cloud2 # input point_cloud2 topic name
+scan: /hokuyo3d/scan # output scan topic name
+transform_tolerance: 0.01
+min_height: 0.0
+max_height: 1.0
+
+angle_min: -1.5708 # -M_PI/2
+angle_max: 1.5708 # M_PI/2
+angle_increment: 0.0087 # M_PI/360.0
+scan_time: 0.3333
+range_min: 0.45
+range_max: 4.0
+use_inf: true
+inf_epsilon: 1.0
+
+# Concurrency level, affects number of pointclouds queued for processing and number of threads used
+# 0 : Detect number of cores
+# 1 : Single threaded
+# 2->inf : Parallelism level
+concurrency_level: 1

include/pointcloud_to_laserscan/pointcloud_to_laserscan_nodelet.h

@@ -86,6 +86,8 @@ class PointCloudToLaserScanNodelet : public nodelet::Nodelet
   // ROS Parameters
   unsigned int input_queue_size_;
   std::string target_frame_;
+  std::string cloud_in_;
+  std::string scan_;
   double tolerance_;
   double min_height_, max_height_, angle_min_, angle_max_, angle_increment_, scan_time_, range_min_, range_max_;
   bool use_inf_;

launch/sample_node_with_yaml.launch

@@ -0,0 +1,6 @@
+    <!-- run pointcloud_to_laserscan node -->
+    <node pkg="pointcloud_to_laserscan" type="pointcloud_to_laserscan_node" name="pointcloud_to_laserscan">
+        <rosparam command="load" file="$(find pointcloud_to_laserscan)/config/pointcloud2_to_laserscan_param.yaml"/>
+        <!-- <remap from="cloud_in" to="$(arg basename)/hokuyo_cloud2"/>
+        <remap from="scan" to="$(arg basename)/scan"/> -->
+    </node>

src/pointcloud_to_laserscan_nodelet.cpp

@@ -69,6 +69,8 @@ void PointCloudToLaserScanNodelet::onInit()
   private_nh_.param<double>("range_min", range_min_, 0.0);
   private_nh_.param<double>("range_max", range_max_, std::numeric_limits<double>::max());
   private_nh_.param<double>("inf_epsilon", inf_epsilon_, 1.0);
+  private_nh_.param<std::string>("cloud_in", cloud_in_, "/hokuyo3d/hokuyo_cloud2");
+  private_nh_.param<std::string>("scan", scan_, "/hokuyo3d/scan");
 
   int concurrency_level;
   private_nh_.param<int>("concurrency_level", concurrency_level, 1);