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2019-08-12 09:05:04 -0500 edited answer How to build just one package using catkin_make?

Build a single package including it's dependencies catkin_make --only-pkg-with-deps <target_package> Don't forg

2019-06-16 11:43:00 -0500 edited answer How to build just one package using catkin_make?

catkin_make --pkg <my_package_name> Example: catkin_make --pkg turtlebot Multiple Packages: catkin_make --pkg

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2019-04-16 23:29:09 -0500 commented answer Best 3D object recognition package

Yes unfortunately the project looks dead. I remember that I also had problems building v4r. Have you tried installing fr

2019-04-16 23:25:12 -0500 edited answer Best 3D object recognition package

All of the answers are outdated. Please completely forget ork, you will just waste your time on it for poor results on a

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2019-03-13 01:28:34 -0500 answered a question How to speed up moveit execution velocity?

You should check your joint_limits.yaml and set the values according to your robot's specifications. joint_limits:

2019-03-04 06:26:11 -0500 commented answer end-effector pose constrained planning

pose is the geometry_msgs/Pose of the endeffector right before you enable the path constraints.

2019-03-04 06:23:19 -0500 edited answer end-effector pose constrained planning

Here is an example of how to use path constraints (here orientation constraints) with Moveit in Python: from moveit_msg

2019-03-01 16:31:22 -0500 marked best answer What is the recommended database management system and wrapper for python?

We just want to save some arm poses/postures and base positions. For now we save these with couchdb. As we have to do some changes we want to find out whats currently the best and easiest database solution for ROS.

  • We use ORK so we have a couchdb running anyway. But there no nice wrapper seems to be available?
  • mongodb_store looks very pythonic and is currently our favourite. Any comments?
  • The python wrapper for warehouse_ros also looks promising but not as nice as mongodb_store. But perhaps warehouse is supported by more packages?
  • What about relational databases?
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2018-08-22 05:03:48 -0500 answered a question What is the recommended database management system and wrapper for python?

We went for mongodb_store because it was the most pythonic solution.

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2018-02-02 01:32:06 -0500 edited answer Best 3D object recognition package

All of the answers are outdated. Please completely forget ork, you will just waste your time on it for poor results on a

2017-11-28 12:58:58 -0500 marked best answer Where does the offset/rotation come from with Industrial Calibration Extrinsic Xtion to Arm Calibration?

I calibrated our Xtion to the arm of our robot with the following parameters:

  • target: CircleGrid5x7
  • cost_type: LinkCameraCircleTargetReprjErrorPK
  • transform_interface: ros_camera_housing_cti Calibrated

Only one single static scene was used.

Outcome:

cost_per_observation: 0.0259

Recognized target:

image description

image description

Nothing was moved after calibration!

The target_frame is not perfectly oriented! What could be the source of this problem? Shouldn't everything be aligned perfectly with cost_per_observation this low? As I understand it should be perfect even if the intrinsic calibration of the camera is not correct?

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2017-05-12 00:20:18 -0500 answered a question How to do object recognition with kinect?

Use v4r see http://answers.ros.org/question/12444/best-3d-object-recognition-package/?answer=261581#post-id-261581

2017-05-12 00:16:19 -0500 answered a question Best 3D object recognition package

All of the answers are outdated. Please completely forget ork, you will just waste your time on it for poor results on a

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2017-04-24 08:44:18 -0500 edited answer How to build just one package using catkin_make?

catkin_make --pkg <my_package_name> Example: catkin_make --pkg turtlebot Multiple Packages: catkin_make --pkg

2017-03-02 09:02:08 -0500 answered a question No observations available.

This was an image encoding problem. It should have been fixed: https://github.com/wg-perception/capture/pull/23

2016-12-07 02:48:56 -0500 answered a question Asus Xtion live pro on USB 3.0 - ROS-kinetic - Ubuntu 16.04

This is only a warning. Your Xtion should still work.

OpenNI tries to set the USB async thread priority to critical. This works on Linux only with root privileges. For a normal user, the program will throw this warning. To get rid of this warning, run the program as root. source

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2016-08-11 11:48:35 -0500 marked best answer Transform a pose to another frame with tf2 in Python

I have a pose stamped given in camera frame. Now I want to transform the pose to get its coordinates in the base_link frame.