109 questions
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38
views
Transparency in PyQt widgets & VTK
I have a few widgets such as a QLabel and QPushbuttons hovering over a VTK scene like below. As you can see, when I add a border-radius to the them, the remaining area around the labels or buttons is ...
1
vote
0
answers
69
views
PyQT5 VTK Mouse Button Event Mismatch
I am using PyQT5 and VTK for displaying information, and have been using observers to register mouse click events through the interactor style. For some reason, when multiple buttons are clicked, the ...
- 49
0
votes
0
answers
45
views
I want to add buttons on QVTKOpenGLNativeWidget
qt can add buttons to widgets in Windows, but QVTKOpenGLNativeWidget can't. I want to add a fixed button to the QVTKOpenGLNativeWidget. How do I do that
I tried it by way of layout
QPushButton *...
0
votes
0
answers
131
views
using vtk on apple silicon m1
i'm trying to run this function using vtk on a mac m1. i think the problem is with my OS and not the code itself since on another OS like windows it works
def get_thumbnail(PDF, axis):
## some ...
- 76
0
votes
0
answers
95
views
Try to have a vtkInteractorStyleImage with vtkGenericOpenGLRenderWindow
I'm trying to build an application with Qt and VTK. I want to display a 3D image (DICOM) in a widget like QVTKOpenGLNativeWidget and be able to change slices using the mouse wheel (and other thigs).
I ...
- 21
0
votes
0
answers
192
views
VTK Render Window and QThread synchronization Issue
I am currently working on developing a utility for visualizing data collection. I have created a PyQt5 GUI, and I am using the vtk library to visualize live data from an external source. My current ...
- 1
0
votes
0
answers
99
views
how get output of vtkrenderwindowinteractor() and import it to qopenglwidget python
I want to import my STL file into Qt. The code is written in VTK to obtain and read the STL file, and now I want to transfer it to Qt by using the QtWidgets.QOpenGLWidget class. Finally, I need to add ...
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votes
1
answer
283
views
Calling vtkRenderWindow's Render() but no update when running QT project for a long time
I have a QT project that uses the class called QtVTKViewer. All the QWidgets in the project use QtVTKViewer and added in the stackwidget of QT. The first QWidget allows the user to add and adjust ...
- 1
0
votes
1
answer
540
views
Visualize Realtime pointclouds on QT widget
I am trying to visualize pointclouds on my qt widget.Following is a snippet of my code.This code can display the point clouds from a .pcd file. I am looking to visualize real time point clouds on qt
...
- 11
1
vote
1
answer
205
views
vtkThresholdPoints how to get the mesh back with a surface not just points
on using the vtkThresholdPoints to threshold a mesh it returns back just the points. I need to get back the mesh with its surface again, not just the points.
I need to get the thresholded mesh with ...
- 73
4
votes
1
answer
1k
views
PyQt5 + VTK - wglMakeCurrent failed error
Minimum working example:
from sys import exit
from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget, QHBoxLayout, QLabel, QFrame
from vtk.qt.QVTKRenderWindowInteractor import ...
- 165
2
votes
1
answer
384
views
PyVista: Why does the callback only draw the 3d entities and not the 2d one on the second time?
I have a question and hope that you can help me.
I put together a small MCVE below.
When you click the button for the first time,
you can see that the 3d data (add_mesh, add_points) and 2d data (chart....
- 7,101
0
votes
0
answers
436
views
Migration from vtk8.2 to vtk9.1 for qt application
I have a qt5.12 application with vtk8.2 which uses QVTKWidget. Now I want to use vtk9.1 instead of vtk8.2. But vtk9.1 does not support QVTKWidget anymore. So, I just changed it into ...
- 31
1
vote
0
answers
103
views
QVTKWidget is transparent
I am just a beginner in both Qt and PCL. I am trying to display PCL viewer in the main Qt GUI Window. When I use PCL viewer, it shows up in the separate window. I also try with QVTKWidget.The problem ...
- 11
0
votes
1
answer
527
views
Vedo Plotter in Qt - Mouse Click Event not registering at the correct position
I have tried several different things about the mouse clicks not registering correctly in my Qt mainwindow. When using only my QHD monitor, the program worked just fine (video). However, when using my ...
- 23
1
vote
1
answer
1k
views
PCL viewer inside QtCreator widget with VTK and QVTKOpenGLStereoWidget
I need to make a graphical window with a Qt widget that allows to represent inside it a point cloud that I have previously loaded using the PLC library.
Here's what I have so far that doesn't work (I ...
0
votes
0
answers
408
views
QVTKOpenGLNativeWidget fails in debug mode
My C++ program in Visual call QVTKOpenGLNativeWidget and works fine in Release mode. However, when I change to Debug mode it fails to build which seems yo be related to Qt5Core. Note that Qt5Core.dll ...
- 1
0
votes
1
answer
438
views
Mouse control is lost after using vtk interactor
I'm trying to visualize a vtk unstructuredgrid mesh.
In order to get the coordinate of a point of my mesh I use the vtk interactor.
I'm able to get the point coordinate by selecting the point using ...
- 1
0
votes
0
answers
160
views
Memory leak in PCL visualizer and QVTK widget
I m using Ubuntu 20.04 with Qt5.12 for developing a QT project which uses a QVTK widget to display a 3D PCL visualiser. I m facing memory leak issues after defining the visualiser and vtk widget ...
- 51
0
votes
1
answer
358
views
Deleting Spheres from VTK Object
We have written a program as you can see in image: program_image. We added spheres on the object to get information about the place. Now the problem is, although we can place them with no issue, we ...
- 13
2
votes
1
answer
378
views
How to disable VTK's hotkey in Python-VTK
I want to disable some VTK hotkeys, in the Python version. While there exist answers here for C++ (and maybe js), it does not seem to work with the Python version.
I tried overloading OnKeyPress on my ...
- 85
0
votes
1
answer
948
views
pyqt5 and vtk object integration
i would like to embed the glb file to pyqt gui with vtk python library. I wrote pieces of code but it does not embed the sketch to the pyqt gui. Everytime there have been placing in the second windows ...
- 99
1
vote
0
answers
219
views
vtkplotlib set opacity/transparency in QtFigure
i want to use the vtkplotlib library to display different 3d models and i want to set the opacity in the background of the widget to 0. I just know how to set the normal background color with the ...
- 79
1
vote
1
answer
303
views
Problem with VTK Chart interaction with PyQt
I'm trying to Draw VTK ChartXY using QVTKRenderWindowInteractor because my program is designed to use PyQt.
Problem is, showing chart is good but, i can't interact with the chart for example, zoom, ...
- 91
1
vote
0
answers
139
views
Disable "q" Onchar() vtkInteractorStyleSwitch
So i'm try to create my own custom interactor style inheriting from the vtkInteractorStyleSwitch.
This issue im having is that im trying to disable the "q" shortcut for closing the vtk ...
- 11
1
vote
0
answers
1k
views
'QVTKWidget.h' file not found
I installed PCL 1.8.0 on Ubuntu 18.04 but I encountered an error while installing a repo.
[ 88%] Building CXX object CMakeFiles/tviewer.dir/tviewer/tviewer_widget/tviewer_widget.cpp.o
In file included ...
- 11
0
votes
1
answer
358
views
how to extract the foreground from vtkWindowToImageFilter?
I'm integrating vtk with qt, i have vtkWindowToImageFilter with input set to vtkGenericOpenGLRenderWindow, how come i extract the image foreground only?
vtkWindowToImageFilter *w2if = ...
- 830
0
votes
1
answer
1k
views
error: undefined reference to `QVTKWidget::QVTKWidget(QWidget*, QFlags<Qt::WindowType>)'
I m using Qt5.15 in Ubuntu 20.04. I want to use PCL to visualise point cloud data. To get PCL runnig with Qt, VTK library is also required. So in my system I have PCL 1.10 and VTK 7.1.1. I have taken ...
- 51
0
votes
1
answer
192
views
Connect user custome function to modify VTK object with Qt Widgets
I'm currently working on the conversion of a project initially made under python, allowing to modify the visualization of a .vtk file with a Qt interface essentially made of sliders. The project under ...
- 180
2
votes
1
answer
619
views
undefined reference to 'QVTKWidget::QVTKWidget'
The env is VTK-8.0 ITK-5.2 QT-5.12
This error occurs when I compile this cmake file:
cmake_minimum_required(VERSION 3.3 FATAL_ERROR)
project(QtDICOMViewer)
find_package(VTK REQUIRED)
#find_package(...
- 143
0
votes
0
answers
666
views
underfined to symbol 'XGetWindowAttributes'
When I used vtk in qt creator firstly, I came into this trouble. And I cannot solve it now, asking for some help.
I followed this website https://csuzhangxc.gitbooks.io/vtk-simple-tutorial/content/...
1
vote
1
answer
426
views
Problems in using vtkCubeAxesActor() instance. (Number representing, and contamination)
I have three questions.
Q1. In the picture above, only X axis displays actual numbers(:300,400,etc.) but Z axis just shows ratio number accompanying 'Z(x10^3)'. How can I show actual numbers for Y,Z ...
- 21
2
votes
0
answers
1k
views
Point cloud not showing up in Qt+PCL viewer
I'm trying to load and display point clouds through a Qt+PCL configuration.
I managed to load and display a smaller point cloud (~60 thousand points), but could't display a larger one (~3 million ...
- 21
0
votes
1
answer
311
views
Using qt to show point cloud data, but core dump occured when I exit
my dev enviroment is QT 5.14.2, PCL 1.9, VTK 8.2.0.
this is my initial code:
// Set up the QVTK window
vtkSmartPointer<vtkGenericOpenGLRenderWindow> renderWindow = vtkSmartPointer<...
- 1
0
votes
2
answers
238
views
how to compile vtk-master with qt5 and visual sudio 2015?
When I compile the vtk-master with vs 2015(update 1) and QT5, I see an error as:
Error C2039 'Frame': is not a member of 'QGL Widget' GUI Support Qt Open GL C:\VTK\SOURCE\source\GUISupport\...
1
vote
0
answers
436
views
VTK not clearing previous frame and filling background
I've installed VTK 8.2.0 with CMake for use with QT but when trying to run some VTK examples I have some issues shown below:
Note: The colour banding issues in the image is from the gif compression ...
- 1,152
0
votes
0
answers
64
views
QVTKWidget not showing colors on many faces when showing OBJ with mtl
My objective is to display OBJ files into QWidget. The code I have used to work previously.
vtkSmartPointer<vtkOBJImporter> importer = vtkSmartPointer<vtkOBJImporter>::New();
...
- 12.9k
0
votes
2
answers
512
views
Python & VTK & PyQt5: How to screenshot vtk render in def __init__?
What have I done:
Create a app with PyQt5 and VTK, I add 2 VTK render in 2 QTWidget.
In each VTK render, I read a .stl file and show it.
I add a function screen_shot, it can screen shot VTK render ...
- 33
1
vote
1
answer
551
views
QVTKWidget + vtkPropPicker fails wrong coordinates
I'm using vtkPropPicker with QVTKWidget, but it is not working: pick position is always (0,0,0) and actor is NULL when clicking on the white sphere. Clicking on the empty region however returns ...
- 18.9k
0
votes
1
answer
216
views
How to use QVTKOpenGLWidget with proper hidpi
When I try QVTKWidget， there are warning messages that told me donot use it.
So I change to QVTKOpenGLWidget.
But there are problems with this widget, it doesnot display properly. See the picture.
...
- 179
1
vote
1
answer
80
views
Issue with QVTKWidget in Qt Ros workspace
I am new to Qt and ROS.
I am working on Qt Creator 4.8.0. I have created a catkin workspace in Qt and a mainwindow was created.
And I am trying to add QVTKWidget to the mainwindow. It was successfully ...
- 21
1
vote
1
answer
329
views
SetWidth() and SetHeight() in vtkActor2D causes a crash after a rendering call
I'm trying to overlay text on an image in vtk when a certain button is clicked. I use a vtkTextActor, vtkTextRepresentation, and vtkTextWidget to achieve this.
Here is my code:
// set up actor
...
- 389
1
vote
2
answers
2k
views
Find all 3D points inside a cube(3D Box)
I'm trying to find out the 3D points of a point cloud which are inside a 3D Box. I'm able to get the points inside 3D box by the below logic, only when the 3d box is align with the axis, but on ...
- 135
0
votes
2
answers
2k
views
VTK and PyQt5 : How to refresh display after changing radius value with slider
I'm trying to write a python code with VTK and PyQt5 which display a VTK Sphere customizable by the user with sliders. The conception of the windows and the widgets is ok, the problem is when I change ...
- 180
0
votes
1
answer
675
views
Point Cloud Library: Sliced points to custom colors
I'm using pcl and vtk library with Qt for point cloud visualization.
My setup is as the below link http://unanancyowen.com/en/pcl-with-qt/
Now when we slice points ie, press 'x' and select a region ...
- 135
3
votes
2
answers
754
views
VTKWidget in Qt is not updated as expected
I would like to display a 3D-Animation in my Qt5-Gui. Everything works as expected, but unfortunately the scene is not getting updated when I don't interact with the vtkWidget. In other words: When I ...
- 177
0
votes
1
answer
1k
views
Using vtkResliceImageViewer or vtkImageViewer2 with Python3+PyQt5
I've written working example for vtkImageViewer:
But any image isn't rendered with vtkImageViewer2 or vtkResliceImageViewer. Have found example based on PyQt4+Python2.7 but wasn't able to get ...
- 406
-1
votes
1
answer
3k
views
QVTKWidget was deprecated for VTK 8.1 and will be removed in a future version
When i create a qt gui vtk application by Cmake,then i run it with vs 2017.It appears fllowing warning.Any counld tell me how could i cancel this warning?Thank you a lot.enter image description here
- 29
0
votes
1
answer
954
views
3D volume not showing in VTK + Qt
I try to display a 3D volume (https://midas3.kitware.com/midas/item/34776) using VTK and Qt using a QVTKOpenGLWidget. I can display and interact with axes, sphere, cones... but the 3D volume does not ...
- 75
0
votes
1
answer
254
views
ParaView Python script causes non responding Visualization Toolkit - Win32OpenGL on Windows
As I have reported here when I try to render the cone example by:
from paraview.simple import *
cone = Cone()
Show(cone)
Render()
I get a non responding window:
My version of Python is:
Python 2....
- 13.9k