HenrySleek's profile - activity

I am running Ubuntu 14.04 and ROS Indigo, and I am quite new to it. I need to use OctoMap: I installed everything from Debians (octomap, octovis etc..). MoveIt! can use the libraries and I can see the the OctoMap in Rviz, but I would like to process it and to select only a specific area of it, accessing the position of each voxel. For this, I guess I would need to use octovis or at least some of the .cpp contained in the octomap package, for seeing some examples on how to filter the map. The problem is that the package that I have under opt/ros/indigo/share is just an empty shell redirecting to the libraries: I see none of the files listed here ( https://github.com/OctoMap/octomap ), where it is full of examples and .cpp. How can I install/access those files?

Hello,

I am quite new to ROS and Ubuntu, so this may be a silly question, but I could not solve it. I am running Ubuntu 14.04 and ROS Indigo, and I would like to install all the OctoMap packages in a separate workspace, in order to source it when I want to use it. I cloned all the folders from GitHub ( https://github.com/OctoMap ), but when I try to build the workspace with catkin_make, I have an error saying that the octomap main package ( https://github.com/OctoMap/octomap ) contains 'non-catkin packages in it, and catkin cannot build a non-homogeneous workspace without isolation'. How can I solve this problem? Should I download a different version of that package?

I have the same problem. Did any of you find a solution? It would be extremely helpful for my thesis.

Marker meshes are white I am including a mesh in .stl format as Marker in Rviz. Even if I manually set the color of the

Marker meshes are white I am including a mesh in .stl format as Marker in Rviz. Even if I manually set the color of the

I am running Ubuntu 14.04 and ROS Indigo. I am currently using MoveIt! for generating an OctoMap from the robot sensors. How can I save that OctoMap? Or, alternatively, how can I access it in order to obtain occupancy information from specific points? I just know the type of the topic (moveit_msgs/PlanningScene), but I don't know how to work on the map or access it.

I know that there is a similar question here in ROSanswers, I checked it, but that does not answer my question since the map is not generated via MoveIt!. So if you know the answer, I would extremely appreciate.

Also this method gives an excellent distribution: http://blog.marmakoide.org/?p=1

Oh damn, I am sorry, I didn't know. I just wanted to have it pop up at the top of the question list in the Home page. I will stop now that I have an answer.

I finally found my answer here: http://answers.ros.org/question/13591... Which is an extension of your answer. Thank you very much.

I see. But I prefer not modifying the source code, since now it's installed with binaries and I didn't want to put my hands on it. Is there a way for doing it with MoveIt! installed from binaries?

I checked that code and indeed it's really a pity that nobody tried to expand it. Anyway, maybe it is enough to call a planning_display_->setQueryGoalState(state); setting the wanted state. Though, trying it, I have the following problem: http://answers.ros.org/question/25752...

I am building a package (where I use mainly MoveIt! functionalities) where in a .cpp file I am including the headers listed below, which themselves include QWidget. I read a bit about what QWidget and Qt are, and it has little to do with what I want to do. I tried to add:

set( headers
    include/moveit/motion_planning_rviz_plugin/motion_planning_display.h
    include/moveit/motion_planning_rviz_plugin/motion_planning_frame.h
 )

qt4_wrap_cpp(MOC_SOURCES ${headers})

Since those two are the headers which include Qt stuff. I still have the same problem:

fatal error: QWidget: No such file or directory
#include <QWidget>

I installed ros-indigo-qt-* but it didn't help. I found a QWidget and a QObject under /usr/include/qt4/, so I guess I should find a way to link those to my package. Am I right? And what should I do?

Hey! Did you manage to solve it? I am trying to do the same thing here.

I am working with ROS Indigo and MoveIt! and I already set up my robot through the setup assistant, and In Rivz I can see the start and goal state, in green and orange. I can manually move the orange goal state from Rviz and then plan and execute a trajectory in order to reach it. Otherwise, I have a piece of code that sets a goal trajectory and plans and executes the whole trajectory to it.

But I would like to just move the (orange) goal state to a new position through a piece of code, without planning any trajectory. Just changing the goal state. How can I do it?

I would like to generate points on the surface of a semi-sphere (given the coordinates of its center), in a NON random way, not even quasi-random, possibly. I would prefer consecutive generated points to be spatially one near to the other, as far as it is possible. Is there a smart way of spanning the surface of a semi-sphere? Possibly in a scalable way, meaning that I can adjust the incremental step so that I can decide the resolution of the points.

I am writing it in C++, so if you have a piece of code in C++ it would be extremely useful. Otherwise, also pseudo-code would be extremely useful. Thank you.

Great, this is exactly what I was looking for. Thank you very much. If you answer to the question here below, I will confirm yours as the right answer.