Fitness
Kegel Exercise
Do kegel exercises for 10 minutes a day, improve pelvic muscles, treat urinary incontinence, improve sexual satisfaction and help reduce premature ejaculation.
VTK
Learn VTK By Python Script On Mac
The post introduces how to create an environment for learning VTK by Python. The basic conditions on my computer: VTK-8.1.1 macOS Mojave 10.14 Python 2.7.10 Write a bash script and run it. cmake ./ -G “Unix Makefiles” \ -DVTK_USE_QVTK:BOOL=ON \ -DCMAKE_INSTALL_PREFIX=/usr/local \ -DVTK_USE_GUISUPPORT:BOOL=ON \ -DVTK_QT_VERSION=5 \ -DModule_vtkGUISupportQt:BOOL=ON \ -DModule_vtkGUISupportQtOpenGL:BOOL=ON \ Read more…
Fitness
Fitness – Take Exercise For Lower Body 210929
10 minutes for this gesture every day. Stimulate the acupuncture points on the inner thighs to build a better fokidney. 30 times for Sumo squats every day, keep 3 seconds for every squat down. The exercise promotes testosterone production for your body. Do stride squats to strengthen hip muscle. Flex your legs. Pause Read more…
VTK
Create 2D Grid On Screen By VTK
The post shows a way to create 2D grid on screen by VTK. Show it by vtkActor2D because we regard it as a 2D object. Its default coordinate system is viewport which is rendering. So we will have to know the window’s size. Let’s make the process easier. Change the Read more…
Math
Check Whether Point Is Inside The Polygon / Circle
I created a 2D convex hull and wanted to check whether a point is inside it. If the point is inside the polygon, the neighbor cross product vectors have the same directions. If the point is outside, one vector is toward the outside, the other one is toward the inside. Read more…
VTK
Find 2D Convex Hull And 3D Convex Hull By VTK
The post shows how to find 2D convex hull and 3D convex hull from points cloud by VTK. Here are some points on screen, finally I add a specail point that z value is not 0 for test 3D convex hull. #include <iostream> #include <vtkSmartPointer.h> #include <vtkSphereSource.h> #include <vtkActor.h> #include Read more…
Algorithm
VTK – Separating Meshe By Connectivity
I export scene from ParaView to get a mesh like the following image. Let’s take edge lists from different parts and form two independent meshes. #include <iostream> #include <vtkSmartPointer.h> #include <vtkSphereSource.h> #include <vtkActor.h> #include <vtkConeSource.h> #include <vtkRenderer.h> #include <vtkRenderWindow.h> #include <vtkPolyDataMapper.h> #include <vtkRenderWindowInteractor.h> #include <vtkCellData.h> #include <vtkNamedColors.h> #include <vtkColorTransferFunction.h> #include Read more…
VTK
VTK – Set Position For vtkTextActor
The article discuss an issue about set position for vtkTextActor object. The class vtkTextActor provides interface SetPosition, its parameter controls object’s left-bottom coordinate. /** * Get the PositionCoordinate instance of vtkCoordinate. * This is used for for complicated or relative positioning. * The position variable controls the lower left corner Read more…
Algorithm
The Stability Of Sorting Algorithm
If two numbers are equal and the relative positions are not changed after sorting, we think the sorting algorithm is stable. Stable sort algorithm: bubble sort, insert sort and merge sort. Unstable sort algorithm: quick sort, heap sort. Introduce an unstable sort algorithm quick sort. Its core thought is divide Read more…