jc17's profile - activity

It was installed at the time, but following demmeln's suggestion fixed things up

This sequence ended up being the answer. D'oh, I'm a newbie to a lot of things in this universe and had no idea how often things update. Thank you!

Wow thanks so much for all the information and external links. I really appreciate all the effort. I saw a ROSCon 2012 presentation here (http://www.youtube.com/watch?v=ZTR16W0DsEM) that's all about the Kinect's hardware details and capabilities with ROS. Can be helpful for others studying Kinect

Great response! And thanks for the suggestions for alternatives, the Neato XV11 and Robopeak look pretty promising!

Hello hello,

I've seen plenty of examples of building maps with ROS using Hokuyo laser scanners that can scan at wide angles (270 degrees!). However, from what I've seen, these scanners are way out of my budget, easily weighing in at over a thousand bucks.

Can you use a single-point laser range finder such as this one ( http://www.fluke.com/fluke/m3en/Laser... ) and still get usable data for mapping, it would just take longer to scan the walls of areas? This particular range finder can be fitted with an interface board ( http://porcupineelectronics.com/Laser... ) that allows for USB communication/interfacing with microcontrollers like Arduinos. Should I be able to send the sensor's data to ROS this way? The rangefinder and the interface board would normally cost about $300 in comparison to the $1000+ Hokuyo alternatives.

AND - let's say I won't use a Hokuyo laser scanner but a single-point laser rangefinder, like a Fluke 411. Might all this still potentially work? Just, the map would build a lot slower since distance data from only a very small field is acquired at a time?

Beautiful response, that might be just what I was looking for. One last question before I close this up, just to clarify. I understand how to publish the sensor data to ROS. How can I take this data, now in ROS, and stream map building with it in rviz w/hector slam? Tutorials use existing .bags

Thanks for the suggestions! Adding "--HEAD" on the end gave an identical result. Trying to add "-v" provided a few more clues. I edited my original question to show what errors were given.

Hi everyone! I've been following this tutorial (wiki.ros.org/hydro/Installation/OSX/Homebrew/Source) and got some great help from you all before. I need a little more help before I can get onto my feet and hopefully start helping others.

I am trying to install ROS Hydro on OSX 10.9 through Homebrew. Following the above linked tutorial, I am stuck trying to run this:

rosdep install --from-paths src --ignore-src --rosdistro hydro -y

And it will fail trying to install PCL. So I try running "brew install pcl" instead. I get:

Configuring incomplete, errors occurred!

make: * * * [cmake_check_build_system] Error 1

...along with a referral to the homebrew troubleshooting page.

Hansg91 suggested trying "brew install pcl -v" for more verbose output. Here's what I saw that I thought might be relevant:

==> make

CMake Error: Parse error in cache file /tmp/vtk5-1lKn/VTK5.10.1/build/CMakeCache.txt. Offending entry: File "setup_install_paths.py", line xxx, in module.

This error was repeated several times with different lines being mentioned and different error reasons mentioned (in module, in get_install_path, TypeError: 'int' object has no attribute 'getitem' - and more).

The final error listed that seemed to sum it all up was that vtk5 5.10.1 did not build - how might I be able to fix this?

I'm dead stuck. I have been following the tutorial to the letter, because otherwise I'd have no idea what I'm doing. Any ideas on how to get past this and continue with the installation? I can always provide more details if necessary. Thank you!

Thanks for the hector_slam suggestion! But I'm still not clear on how to take the raw sensor data and pump it into a readable form in ROS for it to be made into a map.

Note: the original question was "How can one make a .bag out of a sensor's serial data, then play it back in real-time using gmapping?" - I changed the question to better reflect what I meant to ask, now knowing what I was looking for.

Hi everyone!

What I'm trying to do is to take a sensor's output data - namely the distance measured by a rangefinder - and use gmapping in ROS to create a map from that data. I want the map to update in rviz as more data comes in. Ideally, I want to be able to move the rangefinder around and collect data with it all while watching the map get created/updated in real time on a laptop running ROS (as opposed to surveying the entire area, creating a bag, then watching the map get created AFTER surveying).

I want to get a function similar to what's shown in this video: http://www.youtube.com/watch?v=SY7rSc... (I haven't been able to find any detailed info on the making-of process of this gadget)

Would you do this by creating a .bag file of the data from the sensor? How can you do this with serial data input?

My original issue was not being able to run './src/catkin/bin/catkin_make_isolated --install -DCMAKE_BUILD_TYPE=Release' and I still wasn't able to run it and continue with the installation. But your answer and demmein's helped and definitely resolved the PIL issue. And they're both appreciated! (:

Thank you for the reply demmein. The patches went without issue except the last one (opencv2), the terminal said "patch ends unexpectedly in middle of line". Also, exactly what build folder are you referring to? ~/ros_catkin_ws/build_isolated ?? Sorry I'm so clueless about this sort of thing..!

... a link to the github homebrew troubleshooting site. So it seems the rosdep 'brew install pcl' can't install and I'm stuck there now. My Xcode is updated and am looking for solutions right now!

... I get "the following rosdeps failed to install: homebrew: command [brew install pcl] failed". I ran brew update then I ran brew doctor no problem. I tried to run 'brew install pcl' and I got the same issue. In the error it mentions "make: *** [cmake_check_build_system] Error 1" followed by ...

I really appreciate the reply, William! Your suggestion did not work seamlessly but it definitely pointed me in the right direction. I was able to install PIL 1.1.7. However, now when I try to run 'rosdep install –-from-paths /Users/jcRebanal/ros_catkin_ws/src –-ignore-src --rosdistro hydro -y' ...

Hello everyone, I am an absolute beginner when it comes to ROS or Homebrew or even using the Terminal! Please bear with me here.

I've been following this tutorial (wiki.ros.org/hydro/Installation/OSX/Homebrew/Source) to the letter trying to install ROS Hydro to my Mac OSX 10.9. I am stuck at section 2.1.3 where I'm told to run ./src/catkin/bin/catkin_make_isolated --install -DCMAKE_BUILD_TYPE=Release. Upon running it, the command fails with this error:

-- Configuring incomplete, errors occurred!
See also "/Users/jcRebanal/ros_catkin_ws/build_isolated/catkin/CMakeFiles/CMakeOutput.log".
<== Failed to process package 'catkin': 
  Command 'cmake /Users/jcRebanal/ros_catkin_ws/src/catkin -DCATKIN_DEVEL_PREFIX=/Users/jcRebanal/ros_catkin_ws/devel_isolated/catkin -DCMAKE_INSTALL_PREFIX=/Users/jcRebanal/ros_catkin_ws/install_isolated -DCMAKE_BUILD_TYPE=Release' returned non-zero exit status 1

Reproduce this error by running:
==> cd /Users/jcRebanal/ros_catkin_ws/build_isolated/catkin && cmake /Users/jcRebanal/ros_catkin_ws/src/catkin -DCATKIN_DEVEL_PREFIX=/Users/jcRebanal/ros_catkin_ws/devel_isolated/catkin -DCMAKE_INSTALL_PREFIX=/Users/jcRebanal/ros_catkin_ws/install_isolated -DCMAKE_BUILD_TYPE=Release

Command failed, exiting.

I have no idea how I can continue installation from here, may it have something to do with the command cmake /...Release ending with returned non-zero exit status 1? Like I said, I'm an absolute beginner here and can't make sense of this or how to proceed.

I DID try running brew doctor and I was told my system is ready to brew with no warnings.

The rest of the installation up to this point was relatively smooth and was only met with one other major warning/error. At tutorial section 2.1.2 I'm told to resolve dependencies. I ran rosdep install --from-paths src --ignore-src --rosdistro hydro -y and at the end of the command I was asked my sudo password. I was met with this error:

Could not find any downloads that satisfy the requirement PIL

Some externally hosted files were ignored (use --allow-external PIL to allow).

No distributions at all found for PIL.

Storing debug log for failure in /Users/.../pip.log

Error: the following rosdeps failed to install: pip: command [sudo pip install -U PIL] failed

Not sure if that's relevant or not but it does provide more detail on my situation. I could not find anyone else having the same problem, I have no idea if this is easily fixable or if this is a hard compatibility issue.

Please, if you can provide any insight, I would appreciate it very much. I can provide other details if needed. Thank you!!

edit 1: Using both William's and demmein's answers did solve my original PIL install issue. However, I still ended up getting stuck installing the rosdeps, mainly pcl. I dropped trying to install ROS on OSX 10.9 and installed it on Ubuntu and ran than on OSX through VirtualBox. I used a .ova file with ROS Hydro pre-installed and have been able to use it without issue since. Here is the link I used: (nootrix.com/downloads/#RosVM) (I used the 3.7 GB torrent). Thanks again everyone for the help!