Tool
Git Merge Another Branch
git merge – master – dev – master merge dev git merge another branch.xmind
Qt
Configure Qt-5.15.1 Environment For VTK
I had built VTK-8.1.1 and Qt5.12.1. After installing pyqt, I wrote a simple project and run it, the error message showed that it needs the newer version of Qt 5.15. So I download Qt-5.15.1 from https://download.qt.io/archive/qt , build it, and install all libraries. I didn’t find QtCreator app, therefore I Read more…
VTK
VTK – Find Connected Lists And Sort All Points In Them
Create two half spheres and save them in a vtp file by ParaView. We will use it to explore an algorithm that finds the two separated cut list and sort all points in every list. The original scene is like the following images. Use vtkCutter to create cut lines that Read more…
Tool
Basic Operations Of Vim
Vim Vim: Uppercase And Encrypt Vim: Replace And Duplicate Editing Vim: Character Encoding Vim: Visual Mode Vim: Edit Multiple Files Vim: Basic Edit
VTK
Adjust Camera To Focus On Small Region
I want to change the camera’s position and focal point to focus on a small region on the surface of the sphere. The parameters viewUp direction, focal point, position, and parallel scale are important for our target. Our scene comes from a previous article VTK – Find Partial Region And Read more…
VTK
Use Local Coordinate System And Show It
How to create a local coordinate system and show it? We define the local coordinate system has its own x-axis, y-axis, z-axis, and origin. We call the left coordinate system L1 and the right coordinate system L2. Regard L1 as the world coordinate system in VTK, the other one L2 Read more…
VTK
Use vtkButtonWidget To Create 2D Button
We can use vtkButtonWidget to create 2D buttons in the render window. The vtkWidgetRepresentation object controls the button’s position and show button pictures. Write our class ButtonCallBack that inherits vtkCommand and use it to listen for vtkCommand::StateChangedEvent, then we can add our button click function in it. Finally, the widget Read more…
Algorithm
VTK – Find Partial Region And Its Normal
Find a local partial region on the surface of the sphere, mark it by red color. Finally, we will compute the normal of the partial region and show it by a green line. The whole scene is just like the following image. Here are a few steps about the process. Read more…
Software
The Introduction For The New Page: Text Edit
Dear readers, the website www.weiy.city had completed a small page update. 亲爱的读者，站点weiy.city完成了一次小小的页面更新。 Remove links page, add a text edit page. 去掉友情链接页面，增加文本处理页面。 The new page: 新的页面： https://www.weiy.city/text-edit/ We provide the following functions on the page. 在新的页面中，提供如下功能。 1、 All lowercase conversion for strings. 1、 文本全小写转换。 2、 All uppercase conversion for strings. 2、 Read more…