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2017-07-25 16:49:12 -0500 | answered a question | [Octomap] Not updating the map in real time? If you're publishing the updated point cloud, can you manually call the function in octomap to convert point cloud to oc |
2017-07-25 16:43:24 -0500 | answered a question | PCD to Octree First used pcl to publish a point cloud from the pcd file and then used octomap to get the octree <launch> <no |
2017-07-25 16:12:06 -0500 | commented answer | dynamicEDTOctomap.h: No such file or directory I was following a tutorial given here http://wiki.ros.org/mallasrikanth/octomap But I think that is for an older version |
2017-07-25 16:07:01 -0500 | marked best answer | Collision detection using point clouds Hi all, I'm presently using dynamic edt3d library to compute the closest obstacle to a point. If this distance is greater than a certain clearance, I say that the point is collision free for the robot. However, let's say I'm planning to use a robot of dimensions 4 * 2 * 0.5, then my clearance will have to be 4m which is too much. How can I effectively collision check keeping robot dimensions in mind? Finding the intersection of point cloud with robot shape point cloud might not be the most effective way I'm guessing. Any and all suggestions are welcome. Thank you for your time! |
2017-07-25 16:06:57 -0500 | answered a question | Collision detection using point clouds Distance transforms with multiple resolutions in each axis might be the fastest and simplest solution to this problem. H |
2017-07-25 16:05:01 -0500 | commented answer | Collision detection using point clouds Thank you, I checked it out and it seems like a perfect solution for a complicated robot structure. Since I'm only using |
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2017-07-19 14:11:28 -0500 | asked a question | Collision detection using point clouds Collision detection using point clouds Hi all, I'm presently using dynamic edt3d library to compute the closest obstacl |
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2017-02-28 11:46:06 -0500 | asked a question | dynamicEDTOctomap.h: No such file or directory I installed dynamicedt3d library using sudo apt-get install ros-indigo-dynamicedt3d Included in my CMakeLists as:
But while doing a catkin_make, I still get the error fatal error: dynamicEDTOctomap.h: No such file or directory #include <dynamicedtoctomap.h> Can somebody help me figure this out? |
2016-12-14 10:54:12 -0500 | marked best answer | Communicate between my python library and ros I have a python class called primitive_surfaces that uses the script called primitive_shapes.py to find waypoints. Initially, I had a main that would instantiate an object of primitive_surfaces with required arguments and print out the waypoints. I'm now planning to use this code and publish the variable waypoints using ROS. How can I communicate between non-ROS Python scripts and ROS? Apologies if this question has been repeated many times, I'm fairly new to ROS and couldn't seem to find anything relevant. Thanks :) |
2016-12-14 10:24:58 -0500 | asked a question | headers not exported from package to be used in another package I'm trying to use a library from the package localizablity in another package my_package but I get the undefined reference error so I'm guessing there is a linking error. Also, the include folder in devel is empty. I have followed many tutorials but I seem to be missing in the CMakeLists that is attached. When I catkin_make only localizablity the build goes through but when the my_package is also there, the build fails with undefined reference to a function in the header file of localizablity CMakeFiles/get_occupancy.dir/src/get_occupancy.cpp.o: In function `main': get_occupancy.cpp:(.text+0x3be): undefined reference to `Interpolator::Interpolator()' get_occupancy.cpp:(.text+0x3d6): undefined reference to `Interpolator::get_localizablity(float, float, float)' collect2: error: ld returned 1 exit status |
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2016-05-19 07:13:37 -0500 | commented answer | How can I simulate a camera model for software testing? @JohnDoe2991 I also had to add the plugin to get the entry on rviz. http://www.generationrobots.com/en/co... this helped me. |
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2016-05-12 06:39:33 -0500 | commented answer | How can I simulate a camera model for software testing? Hey thanks for the edit. I'm trying to follow your steps but can't find the camera image on rviz. |
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2016-05-11 00:38:47 -0500 | commented answer | How can I simulate a camera model for software testing? Thanks @JohnDoe2991 I have never worked on Gazebo, I have a couple of doubts. can I move the camera model around and get images from all pose positions? And how do i compare the corresponding images to the 3D model being inspected to make sure the entire surface area is covered? |
2016-05-10 22:10:35 -0500 | asked a question | How can I simulate a camera model for software testing? I have camera poses to fully inspect a 3D structure. I would like to test this using a camera model and mark the fov by something in order to measure the coverage. Is there any way I can do this? |
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2016-04-13 04:23:10 -0500 | answered a question | How to keep Pose Markers in RViz? You can use a Pose Array |
2016-04-13 04:14:26 -0500 | marked best answer | Quaternion of a 3D vector My drone is to reach position x,y, z and orient itself along vector3D (ax, by, cz) wrt origin. In order for me to visualize this on rviz I must represent them in quaternion form. I understand that quaternions and vectors don't represent the same thing, but if I take my arbitrary axis as x-axis (vector [1,0,0]) and calculate quaternions between the two vectors, I get this result: As you can see here, the poses aren't all normal to the faces of the cube (my vectors are!) on rviz. What must I do to simply get the vector representation in quaternion form to visualize them? |
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2016-04-13 04:14:21 -0500 | answered a question | Quaternion of a 3D vector I realized my mistake, I didn't normalize the quaternion. This code works! |
2016-03-16 03:58:52 -0500 | commented answer | Quaternion of a 3D vector That makes sense! But since I only want the visual representation of the vector on rviz, I don't think I need a unique quaternion. As long as my x axis of the frame always points towards the vector, y and z shouldn't matter right. But again, let me know if I'm way off here @robustify |
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2016-03-13 03:26:49 -0500 | edited question | Visualize collada file on rviz I exported a collada file through sketch up but am unable to figure out what the problem is. Here is my code! Status on Rviz is okay but cannot see any display! Please help Edit: Included rviz screenshot and frame information this is my tf frame: |