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2020-02-18 02:44:59 -0500 | marked best answer | Library with different OpenCV version crashes Hi, I'm writing a library ( Is this some problem with my CMakeLists.txt or is it just impossible to use multiple libraries that depend on different OpenCV versions? My system: Linux Mint 19.1 Tessa ROS Melodic CMakeLists.txt snippet: ldd dps_calib/calibration | grep opencv_: |
2020-02-17 11:04:26 -0500 | asked a question | Library with different OpenCV version crashes Library with different OpenCV version crashes Hi, I'm writing a library (dps_calib) without ROS dependencies that depen |
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2018-10-18 07:32:53 -0500 | edited question | Docker with rqt problem with black dialog/menu/dropdown Docker with rqt problem with black dialog/menu/dropdown Hi, I created a docker container based on osrf/ros:kinetic-desk |
2018-10-18 07:27:02 -0500 | commented answer | Docker with rqt problem with black dialog/menu/dropdown I already tried --env="QT_X11_NO_MITSHM=1". When I resize the window the content gets visible. |
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2018-10-01 17:08:11 -0500 | asked a question | Docker with rqt problem with black dialog/menu/dropdown Docker with rqt problem with black dialog/menu/dropdown Hi, I created a docker container based on osrf/ros:kinetic-desk |
2018-08-08 01:37:07 -0500 | marked best answer | pylon_camera Error: Grab was not successful Hi, I want to capture images from a Basler acA1300-60gm and the ROS pylon_camera node.
I can open and control the camera with Pylon's PylonViewerApp. But when I'm starting the ROS node with
When I start the ROS image viewer (more) |
2018-08-08 01:37:04 -0500 | marked best answer | Generate ROS msg from asn1 or c file Hi, I'm writing a driver for a VANET transceiver (IEEE 802.11p WLAN) to display vehicles and infrastructures that send CAM/DENM messages. The device redirects all received VANET messages via Ethernet/UDP to my ROS computer.
The specifications for the message structures are in asn1 format. So I generated C-code with the ASN.1 compiler Is there a tool to generate ROS msg files from asn1 or c files? |
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2018-03-19 08:51:47 -0500 | marked best answer | hector_slam with Sick TIM561 Hi, we are working with a robot in a garage or production hall environment to test some car sensors. For mapping we tried an RPlidar (360°) with hector_mapping which is working very well out of the box. Unfortunally the RPlidar has problems to detect parts with black paint or car tires so we tried an Sick TiM561-2050101 which has an angle of 270° and better resolution. Despite the higher frame rate (10Hz vs. 15Hz) and better resolution (0,9°/~400pts vs. 0,33°/~800pts) hector_mapping can't match the map on rotations. It's only working on very slow speeds. Mapping with linear movement seems to work on moderate speed. We tried:
The laser data and slam_cloud is published with ~15Hz. Why does it work out of the box with RPLidar but not with the Sick LIDAR? |
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2018-03-19 08:51:42 -0500 | answered a question | hector_slam with Sick TIM561 The solution was simple. We have an UDOO x86 Ultra on the robot where hector_slam is running and a control computer (Int |
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2018-03-05 10:45:10 -0500 | edited question | hector_slam with Sick TIM561 hector_slam with Sick TIM561 Hi, we are working with a robot in a garage or production hall environment to test some ca |
2018-03-05 10:44:51 -0500 | edited question | hector_slam with Sick TIM561 hector_slam with Sick TIM561 Hi, we are working with a robot in a garage or production hall environment to test some ca |
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2018-03-05 05:36:15 -0500 | asked a question | hector_slam with Sick TIM561 hector_slam with Sick TIM561 Hi, we are working with a robot in a garage or production hall environment to test some ca |
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2017-05-10 09:14:14 -0500 | asked a question | Generate ROS msg from asn1 or c file Generate ROS msg from asn1 or c file Hi, I'm writing a driver for a VANET transceiver (IEEE 802.11p WLAN) to display ve |
2017-05-10 08:40:37 -0500 | answered a question | pylon_camera Error: Grab was not successful I solved the problem by looking at the inter-pkg-delay and MTU in PylonViewerApp that was set to inter-pkg-delay: 0 and |
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2017-04-24 08:23:47 -0500 | asked a question | pylon_camera Error: Grab was not successful pylon_camera Error: Grab was not successful Hi, I want to capture images from a Basler acA1300-60gm and the ROS pylon_c |