Hello guys, I have been trying to install rqt features (such as `rqt_plot` and `rqt_graph`) in a `Minimal` ROS installation (not the full desktop) my Raspberry Pi 2 from source. I have been resolving dependencies all night but now I am stuck. When the package `rqt_gui_cpp` is being built with `catkin_make` , the following error keeps creeping up. What should i do ?
-- +++ processing catkin package: 'qt_gui_cpp'
-- ==> add_subdirectory(qt_gui_core/qt_gui_cpp)
-- Boost version: 1.55.0
-- Found the following Boost libraries:
-- filesystem
-- system
CMake Error at qt_gui_core/qt_gui_cpp/src/qt_gui_cpp/CMakeLists.txt:3 (find_package):
By not providing "FindQt5Widgets.cmake" in CMAKE_MODULE_PATH this project
has asked CMake to find a package configuration file provided by
"Qt5Widgets", but CMake did not find one.
Could not find a package configuration file provided by "Qt5Widgets" with
any of the following names:
Qt5WidgetsConfig.cmake
qt5widgets-config.cmake
Add the installation prefix of "Qt5Widgets" to CMAKE_PREFIX_PATH or set
"Qt5Widgets_DIR" to a directory containing one of the above files. If
"Qt5Widgets" provides a separate development package or SDK, be sure it has
been installed.
-- Configuring incomplete, errors occurred!
See also "/home/pi/ros_catkin_ws/build/CMakeFiles/CMakeOutput.log".
See also "/home/pi/ros_catkin_ws/build/CMakeFiles/CMakeError.log".
Makefile:7390: recipe for target 'cmake_check_build_system' failed
make: *** [cmake_check_build_system] Error 1
Invoking "make cmake_check_build_system" failed
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Trouble installing rqt features (from source) in Raspbian Jessie in a Minimal ROS Installation.
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How can I run rqt_plot with topics from launchfile?
I have the following launchfile.
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removing rqt_gui.ini causes image_view segfault
I have written a simple node that captures the videostream of an USB webcam using OpenCV and publishes the frames. So far, it always worked to display the frames in the rqt_image_view plugin.
However, when I remove the `~/.config/ros.org/rqt_gui.ini` file and rebuild the catkin workspace, the plugin crashes with a segfault as soon as I select the frame topic. Strange enough, if I revert to the old `rqt_gui.ini` file (lucky that I made a copy of before removing it), the image_view plugin works again. I suspect that this is a problem of OpenCV 2 and 3, but I can not infer the relation to the `rqt_gui.ini` file.
Does anybody have an idea, what is going on here?
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Generic UI plugin for rqt?
Hello all,
I have opened this topci to do some brainstorming before start implementing a new plugin.
Problem:
I often find manipulating/monitoring topics with the Topic monitor and the Message publisher plugin no so intuitive. For e.g. when adjusting something servo driven mechanical structure using a knob widget is more easy and straightforward than typing in a number to the Message publisher. Also visualizing a position of something sometimes more handful with a dial/slider. Building a separate plugin each time is a little bit problematic.
Proposal:
I would like to create a plugin which would have a file browse input and an interval spinbox (ms).
I think the Qt Designer is a pretty good tool to create user interfaces pretty quickly.
The plugin would be able to load the designed ui files. The Qt has a QUiLoader class to acheieve this functionality:http://doc.qt.io/qt-4.8/quiloader.html
In Qt designer it is possible to add further properties to the widgets. There would be two dedicated property names: the publish_topic and the subscribe_topic. The widget tree would be traversed by recursively iterating through the children() method and if one of these properties found the widget would be connected to ros through the proper signals/slots. The proper slots/signals are dependent on the widget class, so some QMetaObject magic will be required, but it can be implemented.
If you have any ideas recommendations please let me know!
Thanks in advance!
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Import issues in ROS Kinetic & RQT
I am writing an RQT plugin and when I attempt to build it there are no warnings but when the system attempts to load the plugin I get the following output:
It seems like it is missing the QWidget in the python_qt_binding
RosPluginProvider.load(juno_safe_button/juno_safe_button) exception raised in __builtin__.__import__(juno_safe_button.juno_safe_button, [JunoSafeButton]):
Traceback (most recent call last):
File "/opt/ros/kinetic/lib/python2.7/dist-packages/rqt_gui/ros_plugin_provider.py", line 77, in load
module = __builtin__.__import__(attributes['module_name'], fromlist=[attributes['class_from_class_type']], level=0)
File "/home/mroscoe/juno_ws/install/lib/python2.7/dist-packages/juno_safe_button/juno_safe_button.py", line 7, in
from python_qt_binding.QtGui import QWidget
ImportError: cannot import name QWidget
PluginManager._load_plugin() could not load plugin "juno_safe_button/juno_safe_button":
Traceback (most recent call last):
File "/opt/ros/kinetic/lib/python2.7/dist-packages/qt_gui/plugin_handler.py", line 99, in load
self._load()
File "/opt/ros/kinetic/lib/python2.7/dist-packages/qt_gui/plugin_handler_direct.py", line 54, in _load
self._plugin = self._plugin_provider.load(self._instance_id.plugin_id, self._context)
File "/opt/ros/kinetic/lib/python2.7/dist-packages/qt_gui/composite_plugin_provider.py", line 71, in load
instance = plugin_provider.load(plugin_id, plugin_context)
File "/opt/ros/kinetic/lib/python2.7/dist-packages/qt_gui/composite_plugin_provider.py", line 71, in load
instance = plugin_provider.load(plugin_id, plugin_context)
File "/opt/ros/kinetic/lib/python2.7/dist-packages/rqt_gui_py/ros_py_plugin_provider.py", line 60, in load
return super(RosPyPluginProvider, self).load(plugin_id, plugin_context)
File "/opt/ros/kinetic/lib/python2.7/dist-packages/qt_gui/composite_plugin_provider.py", line 71, in load
instance = plugin_provider.load(plugin_id, plugin_context)
File "/opt/ros/kinetic/lib/python2.7/dist-packages/rqt_gui/ros_plugin_provider.py", line 83, in load
raise e
ImportError: cannot import name QWidget
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↧
RQT Plugin Crashes with Kinetic Kame
I recently upgraded to Kinetic Kame from Jade, and a RQT plugin I have written with C++ crashes on every startup. I get the standard message that a process has died, but I do not see anything in the log file. I put ROS_ERROR() messages in the plugin's constructor, but I do not see any output from them. I'm not sure how to attach gdb to the process since it gets launched through a Python script. Does anyone have any suggestions on how to track down the cause of this problem?
Edit: Using Dirk's suggestion I was able to see more information on the crash. I see the following error:
Thread 1 "python" received signal SIGSEGV, Segmentation fault.
0x00007fffbe4bc5a4 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
I then run backtrace and get the following. I'm not sure what to do next.
#0 0x00007fffbe4bc5a4 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#1 0x00007ffff7de74ea in call_init (l=, argc=argc@entry=4,
argv=argv@entry=0x7fffffffd8c8, env=env@entry=0xf80890) at dl-init.c:72
#2 0x00007ffff7de75fb in call_init (env=0xf80890, argv=0x7fffffffd8c8,
argc=4, l=) at dl-init.c:30
#3 _dl_init (main_map=main_map@entry=0x13f48f0, argc=4, argv=0x7fffffffd8c8,
env=0xf80890) at dl-init.c:120
#4 0x00007ffff7dec712 in dl_open_worker (a=a@entry=0x7fffffffada0)
at dl-open.c:575
#5 0x00007ffff7de7394 in _dl_catch_error (
objname=objname@entry=0x7fffffffad90,
errstring=errstring@entry=0x7fffffffad98,
mallocedp=mallocedp@entry=0x7fffffffad8f,
operate=operate@entry=0x7ffff7dec300 ,
args=args@entry=0x7fffffffada0) at dl-error.c:187
#6 0x00007ffff7debbd9 in _dl_open (
file=0x15a1870 "/home/danthony/ros_workspaces/nimbus_asctec/devel/lib//libnimbus_gui.so", mode=-2147483391,
caller_dlopen=0x7fffd118d862 , std::allocator> const&)+82>, nsid=-2, argc=, argv=, env=0xf80890)
at dl-open.c:660
#7 0x00007ffff75edf09 in dlopen_doit (a=a@entry=0x7fffffffafd0) at dlopen.c:66
---Type to continue, or q to quit---
#8 0x00007ffff7de7394 in _dl_catch_error (objname=0xa62dd0, errstring=0xa62dd8, mallocedp=0xa62dc8, operate=0x7ffff75edeb0 , args=0x7fffffffafd0) at dl-error.c:187
#9 0x00007ffff75ee571 in _dlerror_run (operate=operate@entry=0x7ffff75edeb0 , args=args@entry=0x7fffffffafd0) at dlerror.c:163
#10 0x00007ffff75edfa1 in __dlopen (file=, mode=) at dlopen.c:87
#11 0x00007fffd118d862 in Poco::SharedLibraryImpl::loadImpl(std::__cxx11::basic_string, std::allocator> const&) () from /usr/lib/libPocoFoundation.so.9
#12 0x00007fffd118dd80 in Poco::SharedLibrary::SharedLibrary(std::__cxx11::basic_string, std::allocator> const&) () from /usr/lib/libPocoFoundation.so.9
#13 0x00007fffd1c754a9 in class_loader::class_loader_private::loadLibrary(std::__cxx11::basic_string, std::allocator> const&, class_loader::ClassLoader*) () from /opt/ros/kinetic/lib/libclass_loader.so
#14 0x00007fffd1c6f9ca in class_loader::ClassLoader::loadLibrary() () from /opt/ros/kinetic/lib/libclass_loader.so
#15 0x00007fffd1c6fbd8 in class_loader::ClassLoader::ClassLoader(std::__cxx11::basic_string, std::allocator> const&, bool) () from /opt/ros/kinetic/lib/libclass_loader.so
#16 0x00007fffd1c796a1 in class_loader::MultiLibraryClassLoader::loadLibrary(std::__cxx11::basic_string, std::allocator> const&) () from /opt/ros/kinetic/lib/libclass_loader.so
#17 0x00007fffcea6123f in pluginlib::ClassLoader::loadLibraryForClass(std::__cxx11::basic_string, std::allocator> const&) () from /opt/ros/kinetic/lib//librqt_gui_cpp.so
#18 0x00007fffcea65c6c in pluginlib::ClassLoader::createInstance(std::__cxx11::basic_string, std::allocator> const&) () from /opt/ros/kinetic/lib//librqt_gui_cpp.so
#19 0x00007fffcea5b688 in rqt_gui_cpp::NodeletPluginProvider::create_instance(std::__cxx11::basic_string, std::allocator> const&) () from /opt/ros/kinetic/lib//librqt_gui_cpp.so
#20 0x00007fffcea5b7da in boost::detail::function::function_obj_invoker1, boost::_mfi::mf1, rqt_gui_cpp::NodeletPluginProvider, std::__cxx11::basic_string, std::allocator> const&>, boost::_bi::list2, boost::arg<1>>>, boost::shared_ptr, std::__cxx11::basic_string, std::allocator> const&>::invoke(boost::detail::function::function_buffer&, std::__cxx11::basic_string, std::allocator> const&) () from /opt/ros/kinetic/lib//librqt_gui_cpp.so
#21 0x00007fffce809266 in nodelet::Loader::load(std::__cxx11::basic_string, std::allocator> const&, std::__cxx11::basic_string, std::allocator> const&, std::map, std::allocator>, std::__cxx11::basic_string, std::allocator>, std::less, std::allocator>>, std::allocator, std::allocator> const, std::__cxx11::basic_string, std::allocator>>>> const&, std::vector, std::allocator>, std::allocator, std::allocator>>> const&) () from /opt/ros/kinetic/lib/libnodeletlib.so
#22 0x00007fffcea5b181 in rqt_gui_cpp::NodeletPluginProvider::create_plugin(std::__cxx11::basic_string, std::allocator> const&, qt_gui_cpp::PluginContext*) () from /opt/ros/kinetic/lib//librqt_gui_cpp.so
#23 0x00007fffcea60a46 in qt_gui_cpp::RosPluginlibPluginProvider::load_explicit_type(QString const&, qt_gui_cpp::PluginContext*) () from /opt/ros/kinetic/lib//librqt_gui_cpp.so
#24 0x00007fffd2314d5e in qt_gui_cpp::CompositePluginProvider::load_plugin(QString const&, qt_gui_cpp::PluginContext*) () from /opt/ros/kinetic/lib/libqt_gui_cpp.so
#25 0x00007fffd2314d5e in qt_gui_cpp::CompositePluginProvider::load_plugin(QString const&, qt_gui_cpp::PluginContext*) () from /opt/ros/kinetic/lib/libqt_gui_cpp.so
#26 0x00007fffd2572776 in ?? () from /opt/ros/kinetic/lib/python2.7/dist-packages/qt_gui_cpp/libqt_gui_cpp_sip.so
#27 0x00007fffd2316445 in qt_gui_cpp::PluginBridge::load_plugin(qt_gui_cpp::PluginProvider*, QString const&, qt_gui_cpp::PluginContext*) () from /opt/ros/kinetic/lib/libqt_gui_cpp.so
#28 0x00007fffd2575994 in ?? () from /opt/ros/kinetic/lib/python2.7/dist-packages/qt_gui_cpp/libqt_gui_cpp_sip.so
#29 0x00000000004c4d5a in PyEval_EvalFrameEx ()
#30 0x00000000004ca39f in PyEval_EvalFrameEx ()
#31 0x00000000004ca39f in PyEval_EvalFrameEx ()
#32 0x00000000004ca39f in PyEval_EvalFrameEx ()
#33 0x00000000004ca39f in PyEval_EvalFrameEx ()
#34 0x00000000004ca39f in PyEval_EvalFrameEx ()
#35 0x00000000004c2e05 in PyEval_EvalCodeEx ()
#36 0x00000000004ca6b5 in PyEval_EvalFrameEx ()
#37 0x00000000004c2e05 in PyEval_EvalCodeEx ()
#38 0x00000000004ca6b5 in PyEval_EvalFrameEx ()
#39 0x00000000004c2e05 in PyEval_EvalCodeEx ()
#40 0x00000000004ca6b5 in PyEval_EvalFrameEx ()
#41 0x00000000004c2e05 in PyEval_EvalCodeEx ()
#42 0x00000000004ca6b5 in PyEval_EvalFrameEx ()
#43 0x00000000004c2e05 in PyEval_EvalCodeEx ()
#44 0x00000000004ca6b5 in PyEval_EvalFrameEx ()
#45 0x00000000004c2e05 in PyEval_EvalCodeEx ()
#46 0x00000000004ca6b5 in PyEval_EvalFrameEx ()
#47 0x00000000004c2e05 in PyEval_EvalCodeEx ()
#48 0x00000000004c2ba9 in PyEval_EvalCode ()
#49 0x00000000004f20ef in ?? ()
#50 0x00000000004eca72 in PyRun_FileExFlags ()
#51 0x00000000004eb1f1 in PyRun_SimpleFileExFlags ()
↧
How to convert Rosbag Pointcloud2 to Mp4
So I have a bunch of rosbag files that only contain a pointcloud2 topic. I need to be play through these, and have accurate times for them, because I'm using them to tag data. This means the typical way of playing them back through rviz doesn't work for what I need. I thought I had a solution which was to use the convert_pointcloud_to_image command, and output the image to a new stream, and then use rqt to record that stream. The problem is that this isn't playing with the real times that the video should have, or in other words, it has an inconsistent frames per second, which means the timestamps are meaningless. So what I'm trying to do now is extract images from this stream using the image_view extract_images command, and the pass those images through mencoder to convert them to a video. The problem I'm now having is that my original rosbag file says it has 16793 messages, which means I need at least that many images to be created if I'm not mistaken; however, when I run the extract_images command on the converted stream, no matter what I put in the fps parameter, it still only produces somewhere on the range of 5000 images, and I'm not sure why. Does anyone know what I'm doing wrong here perhaps? Is there a better way to do what I'm trying to achieve?
↧
Message files not being generated properly with catkin_make
I have a workspace with 3 packages: an rqt plugin written in C++ (package A), a package with two custom messages (package B), and another C++ package (package C).
Packages A and C both rely on the custom messages defined in package B. To ensure that the dependencies for the executables in packages A and C are met, I have added the following line for each applicable executable:
`add_dependencies(executable_name ${catkin_EXPORTED_TARGETS})
`
Unfortunately, when I try to compile using `catkin_make`, I get an error saying that the header file for the messages don't exist. I'm fairly certain this error is coming from package A, the rqt plugin, since doing a catkin_make on package C alone generates no errors and successfully compiles the header files for the messages before trying to compile the executables (and catkin_make on the entire workspace works just fine after that since the header files have already been generated).
How do I go about telling catkin that the rqt plugin depends on the message files? I already have the message package name listed in the CMakeLists.txt file for the plugin as `find_package(catkin REQUIRED COMPONENTS package_b)` but that doesn't resolve the issue.
I'm currently compiling in ROS Kinetic but this issue existed in Indigo as well before I upgraded.
Any help would be appreciated.
----------
***Update*:
**CMakeLists.txt files**
Package A:
cmake_minimum_required(VERSION 2.8.3)
project(rqt_gcs)
find_package(catkin REQUIRED COMPONENTS
query_msgs
geometry_msgs
mavros
mavros_msgs
roscpp
rqt_gui
rqt_gui_cpp
roslib
sensor_msgs
std_msgs
tf
cv_bridge
image_transport
)
find_package(Qt4 COMPONENTS QtCore QtGui QtSvg REQUIRED)
find_package(Boost REQUIRED COMPONENTS thread)
find_package(OpenCV REQUIRED)
include(${QT_USE_FILE})
include(EnableCXX11)
include(MavrosMavlink)
set(rqt_gcs_SRCS
src/rqt_gcs/simple_gcs.cpp
src/rqt_gcs/simple_control.cpp
src/FIS/qfi_PFD.cpp
src/FIW/LayoutSquare.cpp
src/FIW/WidgetPFD.cpp
src/rqt_image_view/ratio_layouted_frame.cpp
)
set(rqt_gcs_HDRS
include/rqt_gcs/simple_gcs.h
include/FIS/qfi_PFD.h
include/FIW/LayoutSquare.h
include/FIW/WidgetPFD.h
include/rqt_image_view/ratio_layouted_frame.h
)
set(rqt_gcs_UIS
resources/gcs.ui
resources/AccessPointsMenu.ui
resources/AccessPointStats.ui
resources/MissionSelect.ui
resources/MissionCancel.ui
resources/MissionProgress.ui
resources/UavStat.ui
resources/UavQuestion.ui
resources/QuadStats.ui
resources/WidgetPFD.ui
resources/PFDWidget_custom.ui
resources/WidgetMain.ui
resources/UAVCondition.ui
resources/ImageView.ui
resources/MissionConfirm.ui
resources/PictureMsg.ui
)
SET(rqt_gcs_RCCS resources/qfi.qrc)
set(rqt_gcs_INCLUDE_DIRECTORIES
include
${CMAKE_CURRENT_BINARY_DIR}
)
catkin_python_setup()
catkin_package(
INCLUDE_DIRS ${rqt_gcs_INCLUDE_DIRECTORIES}
LIBRARIES ${PROJECT_NAME}
CATKIN_DEPENDS roscpp rqt_gui rqt_gui_cpp std_msgs sensor_msgs
)
include_directories(include
${Qt4_INCLUDE_DIRS}
${OpenCV_INCLUDE_DIRS}
)
add_definitions(${Qt4_DEFINITIONS})
qt4_add_resources(rqt_gcs_RCC_SRCS ${rqt_gcs_RCCS})
qt4_wrap_cpp(rqt_gcs_MOCS ${rqt_gcs_HDRS})
qt4_wrap_ui(rqt_gcs_UIS_H ${rqt_gcs_UIS})
include_directories(${rqt_gcs_INCLUDE_DIRECTORIES}
${Boost_INCLUDE_DIRS}
${catkin_INCLUDE_DIRS})
# Declare executables with source files
add_executable(simple_control src/rqt_gcs/simple_control.cpp)
add_executable(gps_publisher src/rqt_gcs/gps_publisher.cpp)
add_executable(gps_demo src/rqt_gcs/gps_demo.cpp)
add_executable(connection_manager src/rqt_gcs/connection_manager.cpp)
add_executable(safe_mocap src/rqt_gcs/safe_mocap.cpp)
add_dependencies(simple_control ${catkin_EXPORTED_TARGETS})
add_dependencies(gps_demo ${catkin_EXPORTED_TARGETS})
add_library(${PROJECT_NAME}
${rqt_gcs_SRCS}
${rqt_gcs_MOCS}
${rqt_gcs_UIS_H}
${rqt_gcs_RCC_SRCS})
#Specify libraries against which to link
target_link_libraries(simple_control ${catkin_LIBRARIES})
target_link_libraries(gps_publisher ${catkin_LIBRARIES})
target_link_libraries(gps_demo ${catkin_LIBRARIES})
target_link_libraries(connection_manager ${catkin_LIBRARIES})
target_link_libraries(safe_mocap ${catkin_LIBRARIES})
target_link_libraries( ${PROJECT_NAME}
${catkin_LIBRARIES}
${QT_QTCORE_LIBRARY}
${QT_QTGUI_LIBRARY}
${QT_QTSVG_LIBRARY}
${OpenCV_LIBRARIES}
)
find_package(class_loader)
class_loader_hide_library_symbols(${PROJECT_NAME})
install(FILES plugin.xml
DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION}
)
install(TARGETS ${PROJECT_NAME}
ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
RUNTIME DESTINATION ${CATKIN_GLOBAL_BIN_DESTINATION}
)
install(PROGRAMS scripts/rqt_gcs
DESTINATION ${CATKIN_GLOBAL_BIN_DESTINATION}
)
install(PROGRAMS scripts/rqt_gcs
DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
)
install(DIRECTORY include/${PROJECT_NAME}/
DESTINATION ${CATKIN_PACKAGE_INCLUDE_DESTINATION}
)
Package B:
cmake_minimum_required(VERSION 2.8.3)
project(query_msgs)
find_package(catkin REQUIRED COMPONENTS message_generation
sensor_msgs
geometry_msgs)
include_directories(include)
add_message_files(
DIRECTORY msg
FILES
Door.msg
Target.msg)
generate_messages(DEPENDENCIES sensor_msgs geometry_msgs)
catkin_package(CATKIN_DEPENDS message_runtime sensor_msgs geometry_msgs)
----------
**Package.xml files**
Package A:
rqt_gcs 0.0.0 The rqt_gcs package hovig TODO catkin roscpp rqt_gui rqt_gui_cpp mav_control std_msgs sensor_msgs query_msgs roscpp rqt_gui rqt_gui_cpp rostopic std_msgs mav_control sensor_msgs query_msgs query_msgs 0.0.0 The query_msgs package serl TODO catkin message_generation sensor_msgs geometry_msgs message_runtime sensor_msgs geometry_msgs
↧
How can I do a GUI ?
Hi,
I am working on a project to create a GUI which would interact with a robot using ROS. It's something relatively new for me.
I have done the beginner tutorial for ROS. Then I have seen that maybe I could create a GUI with Qt so I have started a tutorial to use this framework. But I have seen that there is also the software framework rqt of ROS that could do a GUI. I don't understand if I can still do my GUI on Qt and then imported it in ROS to use it. Because I have tried to make the tutorial of rqt but I don't understant anything :/ I did not understand the plugins and how I am supposed to create a GUI with rqt reading the tutorial. Qt seems easier for me to use.
Can someone tell me if I can use Qt ? Or if not can someone help me to understand what I should do with rqt ? (or explain me the tutorial because I don't find where I should start and what to do with the tutorial of rqt).
Thank you,
Pierre.
EDIT : Actually, I have already a program using ROS which controls my robot. What I want is to create a GUI which would enable me to change graphically the parameters of the robot for example.
↧
↧
How setting parameters of a ROS program through a GUI ?
Hi,
I am using ROS and I have a package controlling a robot. Now I would like to create a GUI which would enable me to modify the parameters of my code. How can I do that ? I would also like to design the GUI but that's ok I've made tutorial of Qtcreator.
I have already made researches about rqt, creating a rqt plugin, using Qtcreator, Qtdesigner... I have also look about [Qt app template](http://wiki.ros.org/qt_create/Tutorials/Qt%20App%20Templates). I also found things about Dynamic reconfigure plugin but it's not what I want.
But the thing is that I can't find anywhere explanations to help me to do what I want. I don't know how the code on Qt could interact with the parameters of my package.
EDIT : My problem is quite similar with [this one](http://answers.ros.org/question/199693/publishingsubscribing-fromto-qt-gui-to-ros/) but there is no answer.
EDIT : Nobody can help me ?
↧
RQT Service Caller in a namespace
Is there a way to invoke the `rqt_service_caller` allowing to call a subset of the exsisting services?
For example, could I limit the services that can be called to a specific namespace? I have tried invoking `rqt_service_caller` within a namespace of my launchfile, but all the services are available. The list of the services is long, and this makes the use of the interface a little unpractical.
↧
rqt_graph rqt_tf_tree issue | ros indigo
Hello all,
I am facing an issue with the packages rqt_graph and rqt_tf_tree. When I run the mentioned packages I get the following error:
PluginHandlerDirect._restore_settings() plugin "rqt_graph/RosGraph#0" raised an exception:
Traceback (most recent call last):
File "/opt/ros/indigo/lib/python2.7/dist-packages/qt_gui/plugin_handler_direct.py", line 116, in _restore_settings
self._plugin.restore_settings(plugin_settings_plugin, instance_settings_plugin)
File "/opt/ros/indigo/lib/python2.7/dist-packages/rqt_graph/ros_graph.py", line 202, in restore_settings
self._refresh_rosgraph()
File "/opt/ros/indigo/lib/python2.7/dist-packages/rqt_graph/ros_graph.py", line 226, in _refresh_rosgraph
self._update_graph_view(self._generate_dotcode())
File "/opt/ros/indigo/lib/python2.7/dist-packages/rqt_graph/ros_graph.py", line 259, in _update_graph_view
self._redraw_graph_view()
File "/opt/ros/indigo/lib/python2.7/dist-packages/rqt_graph/ros_graph.py", line 292, in _redraw_graph_view
same_label_siblings=True)
File "/opt/ros/indigo/lib/python2.7/dist-packages/qt_dotgraph/dot_to_qt.py", line 254, in dotcode_to_qt_items
graph.nodes_iter = graph.get_node_list
AttributeError: 'list' object has no attribute 'get_node_list'
Any clue on how can I fix this problem?
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How to connect a signal to a publisher
Hi,
I am using a rqt plugin made with the [tutorial](http://wiki.ros.org/rqt/Tutorials/Create%20your%20new%20rqt%20plugin) and I have made a simple GUI composed with a slider and a button. I would like to connect the button, to send the value of the slider to a message. This message which contents a integer, would be publish when the button is clicked. Then in another file I have made a "listener" based on the tutorial and I would like to see on my screen the integer.
I can't catkin_make it because I have many errors. I know that I am mixing GUI and ros things, and signals and messages, I am lost. Can someone helpme with that ?
This is my header file :
#ifndef rqt_mypkg__my_plugin_H
#define rqt_mypkg__my_plugin_H
#include
#include
#include
#include
#include
#include
#include "std_msgs/String.h"
#include
namespace rqt_mypkg {
class MyPlugin
: public rqt_gui_cpp::Plugin
{
Q_OBJECT
public:
MyPlugin();
virtual void initPlugin(qt_gui_cpp::PluginContext& context);
virtual void shutdownPlugin();
virtual void saveSettings(qt_gui_cpp::Settings& plugin_settings, qt_gui_cpp::Settings& instance_settings) const;
virtual void restoreSettings(const qt_gui_cpp::Settings& plugin_settings, const qt_gui_cpp::Settings& instance_settings);
// Comment in to signal that the plugin has a way to configure it
//bool hasConfiguration() const;
//void triggerConfiguration();
private:
Ui::MyPluginWidget ui_;
QWidget* widget_;
ros::NodeHandle ros_node_handle;
ros::Publisher my_publisher;
ros::Subscriber sub;
public Q_SLOTS:
virtual void publier();
};
} // namespace
#endif // rqt_mypkg_my_plugin_H
This is my cpp file :
(I know that the thing I've done with the "dac=0 and dac=1" is not working and stupid but I wanted to test it.)
#include "rqt_mypkg/my_plugin.h"
#include
#include "ros/ros.h"
#include
#include "std_msgs/String.h"
#include
#include
int dac= 0;
namespace rqt_mypkg {
MyPlugin::MyPlugin()
: rqt_gui_cpp::Plugin()
, widget_(0)
{
setObjectName("MyPlugin");
}
void MyPlugin::initPlugin(qt_gui_cpp::PluginContext& context)
{
QStringList argv = context.argv();
// create QWidget
widget_ = new QWidget();
ui_.setupUi(widget_);
// add widget to the user interface
context.addWidget(widget_);
connect(ui_.m_bouton, SIGNAL(clicked()), this, SLOT(publier()));
}
void MyPlugin::publier ()
{
dac = 1;
}
int main(int argc, char **argv)
{
ros::init(argc, argv,"envoyeur");
ros::NodeHandle ros_node_handle;
ros::Publisher my_publisher = ros_node_hand
le.advertise("chatter", 1000);
ros::Rate loop_rate(1);
int count = 0;
while(ros::ok())
{
std_msgs::Int8 msg;
std::stringstream ss;
msg.data = ui_.m_hSlider.display(int);
ROS_INFO("%d", msg.data);
if (dac==1) {
my_publisher.publish(msg);
}
ros::spinOnce();
loop_rate.sleep();
++count;
}
return 0;
}
void MyPlugin::shutdownPlugin()
{
}
void MyPlugin::saveSettings(qt_gui_cpp::Settings& plugin_settings, qt_gui_cpp::Settings& instance_settings) const
{
}
void MyPlugin::restoreSettings(const qt_gui_cpp::Settings& plugin_settings, const qt_gui_cpp::Settings& instance_settings)
{
}
} // namespace
PLUGINLIB_DECLARE_CLASS(rqt_mypkg, MyPlugin, rqt_mypkg::MyPlugin, rqt_gui_cpp::Plugin)
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how can I set the library search path for the pluginlib?
I am trying to create an rqt plugin and I have used the image_viewer as a template where I changed all the names and the code to get an empty plugin. This generally worked and I can find my plugin in the dropdown menue of rqt, but when I want to start it it says that it cannot find the library.
I have checked that the library is really generated in ~/catkin_ws/devel/lib and when I manually copy the library to /opt/ros/indigo/lib it suddenly finds the library.
Where can I extend the search path for the pluginlib?
( in the plugin.xml the path tag is: `` which should be correct accordingly to all the tutorials that I could find online. "rqt_grip_ui" is the name )
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rostopic echo gets no data but node does
This is how my setup looks like
- desktop computer
- odroid xu4 (arm computer)
I tried running the master on both computers and I export the the ROS_IP and ROS_MASTER_URI like that:
- oroid: export ROS_IP=odroid_IP and export ROS_MASTER_URI=http://desktop_IP:11311
- desktop: export ROS_IP=desktop_IP and export ROS_MASTER_URI=http://desktop_IP:11311
I publish image data from the odroid and I get the data on the desktop. I process the image data on the desktop computer and publish a std_msg::Float32 (lets call the topic "duration") message with a time stamp. So good so far...
Now here's the problem:
When I try plotting the "duration" topic with rqt or try rostopic echo "duration", I don't get any data. But when I write a small python script and subscribe to the topic "duration" and print the data on the console, it works just fine...
It also works if I run everything on the desktop computer (camera attached to the desktop) and run rqt or rostopic echo.
Any help would be appreciated
Thanks!
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rqt python plugin fails to load in Kinetic Kame
I moved from Indigo to Kinetic these days. AFAIK I updated our code to use qt5 instead of qt4 (essentially importing "QWidget" from "python_qt_binding.QtWidgets" and some comparable changes).
However, the rqt_plugin is not loaded, when selected in rqt. The output:
PluginManager._load_plugin() could not load plugin "frame_editor/Frame Editor":
Traceback (most recent call last):
File "/opt/ros/kinetic/lib/python2.7/dist-packages/qt_gui/plugin_handler.py", line 99, in load
self._load()
File "/opt/ros/kinetic/lib/python2.7/dist-packages/qt_gui/plugin_handler_direct.py", line 54, in _load
self._plugin = self._plugin_provider.load(self._instance_id.plugin_id, self._context)
File "/opt/ros/kinetic/lib/python2.7/dist-packages/qt_gui/composite_plugin_provider.py", line 71, in load
instance = plugin_provider.load(plugin_id, plugin_context)
File "/opt/ros/kinetic/lib/python2.7/dist-packages/qt_gui/composite_plugin_provider.py", line 71, in load
instance = plugin_provider.load(plugin_id, plugin_context)
File "/opt/ros/kinetic/lib/python2.7/dist-packages/rqt_gui_py/ros_py_plugin_provider.py", line 60, in load
return super(RosPyPluginProvider, self).load(plugin_id, plugin_context)
File "/opt/ros/kinetic/lib/python2.7/dist-packages/qt_gui/composite_plugin_provider.py", line 71, in load
instance = plugin_provider.load(plugin_id, plugin_context)
File "/opt/ros/kinetic/lib/python2.7/dist-packages/rqt_gui/ros_plugin_provider.py", line 94, in load
return class_ref(plugin_context)
File "/home/lorenz/catkin_ws/src/wp06_multimodal_robot_programming_toolbox/frame_editor/src/frame_editor/rqt_editor.py", line 42, in __init__
super(FrameEditorGUI, self).__init__(context)
File "/home/lorenz/catkin_ws/src/wp06_multimodal_robot_programming_toolbox/toolbox/src/toolbox/project_plugin.py", line 13, in __init__
super(ProjectPlugin, self).__init__(context)
File "/opt/ros/kinetic/lib/python2.7/dist-packages/qt_gui/plugin.py", line 43, in __init__
super(Plugin, self).__init__(context)
TypeError: __init__() takes exactly 2 arguments (1 given)
Any ideas? Thanks for your help!
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Embed rqt plugins inside another rqt plugin
My goal is to use `rqt_image_view` plugin (which is written in `C++`) inside my own custom `rqt` plugin (also in `C++`). Unfortunately using an `rqt` perspective is not an option for my application. Things I've tried:
- I've skimmed through the `rqt` code base, mainly `rqt_gui_cpp` and `qt_gui_cpp`. I could not figure out how the whole system is laid out (i.e. how `rqt` internally works). Is there any design documents regarding this?
- I've also tried to use `pluginlib::ClassLoader` to load `rqt_image_view`, but it fails. [The code sample is here](https://gist.github.com/mani-monaj/65dae3848482341593d999e6463c7cc3).
It fails with the following error:
Error: According to the loaded plugin descriptions the class rqt_gui_cpp/Plugin with base class type Plugin does not exist. Declared types areI might be using `pluginlib` in a wrong way with `rqt` plugins. I also think I might need to use the helper functions in `qt_gui_cpp` to load the plugin. Any help/suggestion is really appreciated.
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Using rqt to visualize a number.
Hello all,
I'm in the process of building a custom rqt GUI perspective file to control/monitor a robot I'm working with. We are using it for us to visualize SMACH information as well as plot various things and stream camera information. One thing I would like to do is visualize a single number, not as a graph, but a static sub-window that just shows the number. Similar to an indicator in LabVIEW. .
Anyone Know how this can be done?
Thanks in advance!
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rqt link SVGCleanerId_1 hasn't been detected!
why do i get this link SVGCleanerId_1 hasn't been detected! every use rqt. even tho it seems to be working fine does this cause me any problem
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rqt_graph can't start
Noob here.
I have been following the ROS tutorials up to http://wiki.ros.org/ROS/Tutorials/UnderstandingTopics with no apparent problems.
But when I try to run rqt:
rosrun rqt_graph rqt_graph
All I get is the following:
Traceback (most recent call last):
File "/opt/ros/kinetic/bin/rqt_graph", line 5, in
from rqt_gui.main import Main
ImportError: No module named rqt_gui.main
apt-get says ros-kinetic-rqt and ros-kinetic-rqt-common-plugins are already up to date, and I have tried rebooting the system, rolling back python pip, and running it with and without roscore. What do I need to do to get rqt_graph to work?
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