Questions tagged [qt]

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I can't open RQT

I just went through these instructions to get ROS2 installed on my Windows laptop. Now I am trying to run the turtlesim tutorial. However, I can't open rqt as I am ...
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Making a ROS GUI QT6 and C++ in Ubuntu 20.04

I'm trying to make a ROS GUI with QTCreator 6. For some reason I'm always getting some include problems either with QT-Libraries, own header files or ROS. I'm using the ros_qtc_plugin. Project ...
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mqtt.esm.js 1738:123 error

I am getting an error -> js: ./node_modules/mqtt/dist/mqtt.esm.js 1738:123 Module parse failed: Identifier directly after number (1738:123) You may need an appropriate loader to handle this file ...
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2 answers
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ROS2 humble merge with QT framework

I have a project about robotics and I want to merge ros2 and Qt frameworks for UI and back-end systems for example, I want to use Qt for UI and some modules for inter-process communication because Qt ...
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Why rviz crash when using robot_upstart?

Hi everyone, really need some help in getting rviz to work with robot_upstart. I'll try to describe the issue and what I have tried as detailed as possible. Requirement: I would like to make an ...
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Which rate should we call spinOnce()

I'm using Qt GUI and a timer in a slot to call spinOnce() periodically. I would like to ask at which rate should I call this function spinOnce()? Originally posted by CroCo on ROS Answers with karma: ...
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qt.qpa.plugin: Could not find the Qt platform plugin "windows" in ""

ROS 2 tutorial, Introducing turtlesim and rqt, instructs us to execute the following commands in two cmd windows (I am exercising on Windows 10 platform), ...
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[Qt ROS plug-in] Cannot import self-defined messages

Hi everyone, I'm trying to develop a GUI for a project to command easily a robot. I've made my own self-defined messages and tested them and everything works fine. The thing is that when I try to use ...
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2 answers
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Qt 5 for ROS melodic

I'm wondering about the proper way to get Qt 5 for ROS melodic on Ubuntu 18.04. I searched for hours but couldn't find any recent tutorials. Last year, I developed this package where I used ...
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1 answer
14 views

Rviz crash with exception raised by qt.qpa.screen

It's a really weird problem. When I'm trying to launch my launch file using the terminal embedded in VIsual Studio Code, I got an error called "qt.qpa.screen: QXcbConnection: Could not connect to ...
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1 answer
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Custom QT GUI in ROS for real time data freeze

Hi, I am new to integrating ROS with QT. I am developing a custom gui to publish topic directly to a GUI that displays data in real time as it is read from a unit. I followed this link: http://wiki....
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Custom rqt plugin unable to load resource image

I have been following this tutorial on creating an rqt plugin. I have designed the .ui file of the plugin in 'QT 4 Designer', and created the resources there. My custom plugin contains a button with a ...
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Qt Creator ROS plugin installation error

Hi All I'm trying to install Qt Creator Ros plugin, but get the following error. nvidia@tegra-ubuntu:~/Downloads$ chmod > +x qtcreator-ros-xenial-latest-online-installer.run > > nvidia@...
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1 answer
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Catkin/CMake Bundling for Snapcraft "Qrc module is not installed"

I'm working on bundling a ROS + Qt5 application into a snap - and can't seem to get all of the qt dependencies properly included. I would love to get some input on where I might be going wrong. I'm ...
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1 answer
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Why do I get ampersand characters in my strings?

I'm trying to fix an issue that appeared on ROS Melodic, I cannot reproduce this on ROS Kinetic. In short I'm using QCheckBox objects and setting the text to a ROS ...
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1 answer
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How do I save a QByteArray in my Qt panel?

I am creating a RViz plug-in / Qt panel like in this tutorial. There is a QTableWidget in this panel and I would like to be able to save/restore the geometry when ...
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1 answer
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ROS support in Windows 10 tablet + Qt GUI application

Hi, I want to create an Qt GUI (using qml) application which is targeted to run on a windows 10 tablet. Whether ROS can be installed in mobile or tablet platforms. I have a windows tablet UI ...
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1 answer
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ROS Answers SE migration: ROS qt plugin

Hello. I'm having trouble trying to use Qt for my ROS projects. First I tried with standard Qt from official webpage, running it from terminal and with some path configurations I managed to make ...
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1 answer
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Could not find library corresponding to plugin

Hi all. I'm trying to learn how to write rviz plugins from the book Mastering Ros for robotics.But there is a problem I cannot solve. I created the package and then created the ...
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1 answer
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ROS Kinetic GUI Help

Hi everyone, I need help creating a GUI for ROS Kinetic. I tried the ROS - QML - Plugin and no luck. Any guidance , tutorials , or advice on how to go about this will be appreciated. Essentially , I ...
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1 answer
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Creating a QT ROS package

How do i create a ros package that has QT GUI? Thanks Originally posted by MechLc on ROS Answers with karma: 41 on 2017-10-25 Post score: 0
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2 answers
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Why does sourcing my workspace cause the error "catkin_make: command not found"?

I've been messing around with my catkin workspace in an attempt to get QtCreator working with ROS (Indigo Igloo, Ubuntu 14.04, QtCreator 5.9.1), and somewhere along the way I've messed up something ...
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1 answer
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Display messages from rosbag

Hey, I want to display the data in some messages from different rosbags. I don know what kind of messages each rosbag has but I want to be able to check that. And then be able to choose which message ...
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1 answer
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include QWidget

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 ...
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1 answer
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Mac Pro install ROS indigo failed in "qt_gui_cpp" error: code requires Qt 4.x

hi all: I'm trying to install ROS indigo into Mac Pro with macOS Sierra 10.12.3. I follow this tutorial(http://wiki.ros.org/indigo/Installation/OSX/Homebrew/Source), however, it does not looks like ...
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2 answers
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How do i open ros package on qtcreator

I made a Ros package. And I will try to open the package with Qt. However, I get the following type of error. -- The C compiler identification is GNU 5.4.0 -- The CXX compiler identification is GNU 5....
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1 answer
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cannot launch kobuki_dashboard on kinetic

Hi, I'm trying to setup a turtlebot on ubuntu 16, ROS kinetic. Installation went well so far. My laptop and the turtlebot netbook can ping each other. I can roslaunch on the turtlebot fine. I am ...
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1 answer
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How to turn existing Qt widgets into rqt plugin?

i have been trying to read all the forums and tutorials , but i dont know where to start. Please guide this noob. so there are two parts to my question. i want to make a custom rqt plugin using Qt 5.7....
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1 answer
7 views

run the roslaunch comman in Qt creator

I tried to run the roslaunch command in Qt but the error is: sh: 1: /opt/ros/indigo/bin/roslaunch/roslaunch: not found and I tried to download the plugin for ROS ...
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1 answer
5 views

rviz 2D nav goal change topic

Hi all, I'm developing a GUI with qtcreator for making more usable a ros program that use rviz. I've implemented an rviz::VisualizationFrame that works fine and i can use rviz tools without problems. ...
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1 answer
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rgbdslam cmake_install halts; howto fix it?

compilation error: ...
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1 answer
15 views

How to implement RVIZ render panel into a GUI created with qtcreator

I've created a GUI with qtcreator for making more usable an existing ROS script that utilize RVIZ. Is it possible to implement inside a qt window an RVIZ render panel? Is it also possible to implement ...
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2 answers
34 views

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 ...
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1 answer
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How do I communicate between 3 nodes ? (Arduino/QT/Sensors)

I want to establish communication between an IMU sensor ( https://github.com/udmamrl/SpartonCompassIMU/blob/master/src/SpartonCompassIMU.py ) and Arduino+QT. How should I proceed ? I am new to ROS and ...
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1 answer
2 views

ImportError: No module named QtCore

I have my robot model as a URDF file and when I launch it in a launch file to display it in Rviz, I get the following error : ...
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1 answer
3 views

How do ROS projects such as RViz justify release under BSD while statically linking against Qt, which is LGPL?

I'm building my own very simple, straightforward ROS/Qt application and am trying to figure out if BSD is an acceptable license for my code. I am confused as to how many ROS projects (RViz, for ...
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1 answer
4 views

rqt not updating text

Hello, we wrote our own rqt plugin which extends the rosbag functionality to our needs. We are using an *.ui design in rqt to give the user the ability to easily interact with the rosbag functionality....
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1 answer
3 views

osrf/ros docker run error

After I run the docker container of osrf/ros, I got the following error, and the GUI not work! ...
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1 answer
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No qt_build in ROS Jade?

Hi, will there be a version of qt_build in Jade? Or how do I replace it? Greetings, Stephan Edit Thanks for the solutions. I actually didn't made it work with Qt5, because of some changes in ...
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1 answer
3 views

Using Qt Libraries with ROS Indigo CMake Error

I'm trying to incorporate an existing Qt GUI into a ROS node. I'm initially just trying to get the CMakeLists.txt to build successfully in QtCreator 2.7.2. I keep getting an error that: ...
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2 answers
3 views

Custom robot dashboard

I am looking for a simple way to build virtual dashboard (teach pendant) for industrial robot. What I basically need is a GUI application with several buttons where I can emulate such things like ...
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1 answer
34 views

QPainter::begin: Paint device returned engine == 0, type: 3

When I want to run hector_geotiff to print map in a existed map , rosrun hector_geotiff geotiff_saver , Some thing happens. <...
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2 answers
21 views

How to launch a roslaunch in Qt with a terminal (GUI)?

I have created a GUI with Qt and now I want to link the GUI with my ROS program by launching the launch file. To launch my launch file I have found a solution : in my GUI (Qt C++) open a terminal and ...
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1 answer
1 view

ROS Answers SE migration: qt app and ros

I am making an application by Qt to control my robot ,but I have no ideas. And here is what I want to do in this application: 1.make a teleoperation gui to control my robot; 2.display laser scan map ...
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1 answer
7 views

Qt GUI platform for mobile robot

Hi, I am now currently developing a mobile robot and I wish to create a GUI by using Qt to control my mobile robot. I would like to ask is there any sample/example of Qt based GUI that is already ...
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1 answer
1 view

Create service server in rqt c++

Hello, I need to create a service in c++ using qt. I found an example to do this in python, but not in c++. What I need to consider to do that? Originally posted by Bastbeat on ROS Answers with karma:...
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1 answer
9 views

QT creator with Cmake error

I use QT creator with Cmake to compile the package,but it fails to find rosbuild.cmake. please help me ...
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1 answer
8 views

ROS application using Qt5 qml

Hello All, I am developing a ground station application for a mobile robot. I usually create the qt-ros package using catkin_create_qt_pkg. I recently updated to qtcreator 5.0.2 and qtquick 2. Since I ...
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1 answer
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rqt_graph crashes

After running $ rosrun rqt_graph rqt_graph i get the following error msg: ...
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1 answer
4 views

how to make a ROS Map a background for rqt gui

i'm programming a GUI with QT which should run in RQT and have a ROS MAP as a background. I tried using map_server to launch the map but then i get the warning in QT : it is not safe to use pixmaps ...
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