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2014-01-28 17:22:31 -0500 | marked best answer | Using the household_objects_database with diamondback Hello I'd like to use the grasping-database on our PR2 (or gazebo to start with). I installed the database according to this tutorial: http://www.ros.org/wiki/household_obj... and the node via the object_manipulation-package. This is my server config and launchfile for the db: and A first check on the DB looks good: But I can't get any gripping positions: If I use the db within the pick&place-demo, the demo aborts with the message which seems rather related to the db error. Has anyone used the db with diamondback and can give me a hint? Nikolas // Update (see comments) In Standalone: rosservice call /objects_database_node/database_grasp_planning "{arm_name: right_arm, target: {potential_models: [{ model_id: 18744 }] } }" returns and the service itself prints those messages: // Update 2: Results for the 0.4-2 db: and |
2014-01-28 17:22:20 -0500 | marked best answer | Problems using the given bag in the vlsam-tutorial Hello I've installed the vslam via
and tried to run the bag file given in the tutorial Tutorials/RunningVslamOnStereoData If is start the bag-file I only get Was there a change in the code which is not reflected in the bag-file? Nikolas |
2014-01-09 03:59:03 -0500 | commented answer | GUI Catkin Qt5 Cmake Hey! I have the same problem (Qt5 and Qt4 installed). Have you managed to find a solution? |
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2013-05-01 23:57:34 -0500 | commented answer | rosserial_python can't connect to Arduino Leonardo I first tried it without the serial.println but could also not connect properly. I experimented with different baudrates (and checked that both ends use the same rate) but was not able to connect. |
2013-05-01 10:37:53 -0500 | answered a question | rosserial_python can't connect to Arduino Leonardo Alternative using python directly I now stopped working on rosserial and implemented an own python based interface: If I have an arduino loop of the frequency is enough for my needs: gives be above 10kHz. |
2013-04-30 06:23:26 -0500 | asked a question | rosserial_python can't connect to Arduino Leonardo I am trying to use an Arduino to connect two sensors to ROS Groovy on Ubuntu 12.04 but have problems to talk to it using rosserial. Since I have several sensors, I bought the Arduino Leonardo http://arduino.cc/en/Main/arduinoBoardLeonardo based on the ATmega32u4 since it has four interrupt pins that I need for my sensors. The first problem was in ArduinoHardware.h
which I changed to
as proposed here: https://github.com/ros-drivers/rosserial/issues/49 Now the HelloWorld.ino compiled and I could upload it to the Arduino. I started
but only get this response:
Has someone managed to use the Leonardo and can help me? Nikolas // update: I adapted by loop to:
The led (Pin 13) is blinks with a frequency of .5Hz (1s on 1s off). If (Iff) I start the rosserial_python, the TX-Led also flashes as the pin13-Led changes its state. Therefore there is at least some kind of communication, but no rostopic. |
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2012-03-15 06:59:38 -0500 | commented answer | pr2_navigation_slam rviz_move_base_slam.launch 2d nav goal Could you say a bit more about your problem and how you solved it? I currently have the same problem on our PR2. |
2011-12-11 23:29:31 -0500 | answered a question | Sift-Tree-File for the Vocabulary-tree Hello Dejan I already used this function to create a sift-tree. I'm just not sure which (and how many) images and parameters should be used. I'm mainly working on a different approach, so I currently don't want to spend too much time with experiments on the tree generation. Therefore I hoped that someone could give me some tested tree-files. If I just generate a tree and it doesn't perform too well, I can't be sure if the approach just doesn't work for this problem, or if I just build a bad tree. |
2011-11-29 02:15:23 -0500 | asked a question | Sift-Tree-File for the Vocabulary-tree Hello I'd like to know if someone has generated a tree-file for the vocab_tree-stack for other descriptors than only calonder. I would like to use it for loop-closing in the RGBD-Slam. The stack only provides one for calonder-desctiptors, but I'm not really happy with their perfomance, so I'm looking for a way to compare the perfomance of the tree with different descriptors. Nikolas |
2011-11-29 02:10:24 -0500 | asked a question | Examples for perfomance of kidnapped_robot stack Hello I'm working on improving the RGBD-SLAM by finding loops in the pose-graph. I'm currently evaluating the vocab_tree with the Calonder-Descriptors to get potentially matching image-pairs which can then be compared. Since I took some code from the kidnapped_robot stack I'm not sure if I'm using it correctly. So I'd like to know if there is some kind of testing data available. I imagine a set of images (some hundred) together with the pairs of image_ids the tree would generate. Nikolas |
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2011-08-22 23:27:29 -0500 | answered a question | rviz window closes itself I just got this error message and checked my cloud for strange points. My problem were points with huge values (z of 340282346638528859811704183484516925440.000000). This nice number can also be written as (2^24-1)*2^104, which happens to be max_float, so I guess I made a mistake at recognizing nans. The data came from the kinect. |
2011-07-31 00:59:22 -0500 | answered a question | Using the household_objects_database with diamondback I now installed the database (household_0.4) on our PR2 and still get some errors, though this time, they are a bit different: And the service says: I checked for the "grasp_compliant_copy" value and its boolean and false by default. |