Fitting line to pointcloud data
Hello Everyone, I am trying to fit a line to a point-cloud data received from a 2D lidar. I am using random sample consus from pcl library to get this done. The first picture when the LIDAR is aligned...
View Articleethzasl_icp_mapper service Minimal Example
I'm trying to use the ethzasl_icp_mapper service to match some very simple point clouds. However, I get errors like: ICP failed to converge: no outlier to filter I create two simple point clouds and...
View ArticleNaN values in pointcloudXYZ
I converted sensor_msgs::PointCloud2 from kinect to pointcloudXYZ. But some of the values are nan I found 1 post about this issue but it doesnt clearly explain it...
View ArticleNeed interpretation of error:'PointCloud2' object has no attribute 'channels'
Need interpretation of error [ERROR] [WallTime: 1427306405.964789] [396.335000] bad callback: > Traceback (most recent call last): File...
View ArticleSkeleton tracker using point cloud
Hello, The default openni_tracker package allows the detection and tracking of a skeleton from a live stream of a Kinect. However, I have a point cloud data (Type: sensor_msgs/PointCloud2) initially...
View Articlelots of nan data when convert pointcloud2 to pcl::PointXYZ
HI all, I use Ubuntu 14.04 LTI with ROS Indigo. Then I simulate kinect in Gazebo: ` 20${60 *...
View ArticleConverting pointcloud2 data to ros image
I have created a node that publishes fake pointcloud2 data. However, I am not getting an image unless I use an organised point cloud. I arbitrarily set the height and width parameters to 100 each, and...
View ArticleHow to initialize Pointcloud2 message for XYZRGBA data?
Hi all, I'm writing a driver for an RGB-D camera and I do not want to use PCL library. I successfully published simple pointcloud, now I'm trying to publish a RGB pointcloud, but I get an ASSERT error...
View ArticleCurrent robot state as CAD file / pointcloud
Hey all I need to get the current state of the robot, including spatial description, as a CAD file or a pointcloud for further processing. Specifically, I need to get the complete 3D description of the...
View ArticleHow to get pointcloud2 data from usb_cam or Pointgrey camera?
Hello, experts~ I am a new in ROS. And recently, I am trying to get image and make it detected by the node ar_track_alvar. However, this ar node requires sensor_msgs/PointCloud2 data. Firstly I tried...
View ArticleNo map data for rtabmap_ros
Hello, I'm running Ubuntu 12.04, Ros Hydro, I have rtabmap_ros compiled from source (as per instructions). I am using a stereo camera with (I think) the Stereo B configuration. I have modified the...
View ArticlePoint Cloud transformation error
Hello, I am using **stereo_image_proc** to process data coming from a stereo system. When trying to visualize it in RVIZ I came across to the following issue: **The point cloud** *(pointcloud2 and...
View Articlestereo_image_proc and V-rep: Don get the point cloud
hi, I create a model of a stereo camera in V-rep with tow vision sensors and publish the images in ROS. Then I use stereo_image_proc to create the disparity map and the point cloud. The disparity map...
View ArticletransformPointCloud without PCL
Is there a direct analogue to [transformPointCloud](http://docs.ros.org/indigo/api/pcl_ros/html/namespacepcl__ros.html#a29cf585a248dc53517834f4c5a1c4d69) that doesn't use PCL but has the same form?...
View Articlepcl ExtractIndices nodelet
I am using the [perception_pcl](http://wiki.ros.org/perception_pcl) nodelets. I have a point cloud being fed to a SACSegmentation nodelet. That nodelet works fine and I am able to see the output at the...
View ArticleWeird looking PointCloud in RViz
Hi! This is more or less a follow-up to a [previous question of mine](http://answers.ros.org/question/215295/display-pointcloud2-in-rviz/). In short: I used the **pcd_to_pointcloud** tool to create a...
View ArticleHow to highlight points in point cloud on mouse over?
Hello, Is it possible in RViz to highlight a single point in a point cloud and then publish its coordinate?
View ArticleDatatype to access pointcloud2
Hello all, i am working on pobot object detection project and m totally new at Ros. so far in project we have published pointclouds but can anyone tell me after subscribing to a pointcloud2 message...
View ArticleTransforming PointCloud2
I would like to know if somebody knows what is the substitute for the function of transformPointCloud() for PointCloud2 data type as in this...
View ArticleHow to get the XYZ values and publish it from the Point cloud
Hi, I'm using two identical camera's for stereo setup and it is working fine using stereo_image_proc([link...
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