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2016-12-20 02:51:33 -0500 | asked a question | Conversion of sensor_msgs::PointCloud2 to sensor_msgs::PointCloud2ConstPtr Hi all, say I have How do I convert input to output? I tried This compiled, but the node died at runtime. Does anyone know how to do this? By the way, the other way round is handled at http://answers.ros.org/question/65046... |
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2016-12-16 11:42:09 -0500 | commented answer | Using tf::conversions for quaternion rbbg: I have actually done that, just accidentally deleted it when copying the code here. gvdhoorn: What do you mean with OP? ;) |
2016-12-16 09:15:09 -0500 | asked a question | Using tf::conversions for quaternion Hi there, I am failing to transform a tf::Quaternion into a Eigen::Quaterniond. What I have is This is working. I now want to use the method This gives me the following error: What I have done so far: included: In CMakeLists.txt, I added: In package.xml, I added: Does anyone know what else I have to do to make this work? Thanks in advance! |
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2016-09-12 11:02:29 -0500 | commented question | Copying measurement using Pointcloud2 Forgot to say: I would like to use PointCloud2 |
2016-09-12 11:01:02 -0500 | asked a question | Copying measurement using Pointcloud2 Hi there, I have a Pointcloud containing 200 measurements, where every measurement contains 4 values (x,y,z coordinate and intensity). Basically, I want to split my pointcloud into two new pointclouds, one containing all measurements with x > 10 and one containing all measurements with x < 10. (Each measurement should consist of x,y,z and intensity). However, I have not found an elegant way to do this, apart from reading and writing every of those four values on their own. Does anybody know some kind of a "CopyThisMeasurement" function to do this? Thanks in advance! |
2016-08-19 03:22:51 -0500 | asked a question | Compiling ROS with OpenCL Hi there, I am relatively new to ROS and OpenCL. I am using Linux Ubuntu 14.04, ROS Indigo and OpenCL is running on the NVIDIA computing SDK. I have a ROS publisher and subscriber, and the publisher is sending a bool to the the subscriber, compiling this using catkin_make works fine. Also, I have two OpenCL functions AddVec.cpp and AddVecKernel.cl, which add two vectors (without user input) in OpenCL. I can compile my openCL code using: g++ -I ~/NVIDIA_GPU_Computing_SDK/OpenCL/common/inc -L ~/NVIDIA_GPU_Computing_SDK/OpenCL/common/lib/Linux64 -o addVec AddVec.cpp -lOpenCL What I would like to do is insert/include the OpenCL part into the subscriber, such that when receiving the bool from the publisher, I want the subscriber to add the two vectors. However, I have not come up with a solution to compile this and receive the wanted result. Has anybody experience in using OpenCL with ROS and can help me out? Many thanks in advance! |