Visualize pointcloud2 without PCL
I have a stereo-camera and it provides rgb images as well as pointcloud2 data, to which I subscribe like this: self.pointcloud_sub = rospy.Subscriber("/nerian_stereo/point_cloud", PointCloud2,...
View Articledoes PointCloud2 have redundant fields?
I'm thinking of hijacking the PointCloud2 message to display a set of data. Each data point has position, orientation, and another integer value. I see that I have to tell PointCloud2 the width/height...
View Articlelaser_assembler not giving output
Hi! I am trying to assemble point clouds (PointCloud2) received from a Kinect sensor mounted on a mobile robot, both of which are being simulated in Gazebo. I have been following these...
View ArticleOrganizing point cloud from HDL-32E
Hi there, in order to accelerate the data processing on my HLD-32E I would like to organized the data. To this point, I could, under Octave, compute manually an point cloud. But I do actually have no...
View ArticleHow to save OctoMap data everytime?
Hi, I'm getting a 3D map using the OctoMap server package. But As the vehicle moves in this mapping, the map updates itself to the exact location where the vehicle is moving. What I want to do is not...
View ArticleHow to convert PointCloud2 message to a grid?
I'm using a Velodyne sensor which publishes on `/velodyne_points`, and Its class type is `PointCloud2`. Now I want to convert `PointCloud2` message into a grid space (cylindrical) instead of spherical...
View Articlehow to keep speed when use point cloud with object detection
I am using a SSD (single shot multibox) detector to detect the objects, the speed was 33 frames per second before adding point cloud to estimating the distance between the object to the camera which is...
View ArticleIn-Place Modification of PointCloud2 message?
I am subscribing to a `sensor_msgs/PointCloud2` message (points with: x,y,z,intensity) and I would like to change the intensity value based on some heuristic in my code. In principle the code looks...
View ArticleConversion from Point Cloud (PCL) to PointCloud2 (ROS) not showing result on...
Hello, I followed [this tutorial](http://wiki.ros.org/pcl/Tutorials) using `PCL` libraries to perform the conversion from point cloud into a `ROS` readable message `PointCloud2`. After compiling and...
View ArticleTried to insert a message with time less than ros::TIME_MIN Aborted (core...
Hello, after successfully reading `.pcd` file from a file as asked on my [previous...
View Articlepublishing custom pointcloud2 message
hii, I am trying to publish message on topic point cloud 2. The value of x is in double. The value of y is in double. The value of z is in double . The value of intensity in in Uchar. Can some one...
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