The article show demoes about use ifstream to read file written by qfile and use qfile to read file written by ofstream. Use ifstream to read file written by QFile #include <QCoreApplication> #include <QString> #include <QFile> #include <iostream> #include <fstream> Read more…
Open File By Browser The FileReader object lets web applications asynchronously read the contents of file. You can feel the effect at: https://www.weiy.city/web-test/open-file/ <!doctype html> <html lang=”en”> <head> <title>Test</title> </head> <body> <input type=”file” id=”file-input” /> <h3>Contents of the file:</h3> <pre Read more…
The post shows a way to calculate unsigned distance Between Two 3D Models. The models can’t have too low resolution because the result that vtkDistancePolyDataFilter computes will not be accurate. #include <vtkActor.h> #include <vtkCleanPolyData.h> #include <vtkDistancePolyDataFilter.h> #include <vtkNamedColors.h> #include <vtkNew.h> Read more…
The math formula can be rendered successfully if the relative code had been written when load HTML page. Example: jsbin.com But it would fail if we change math formula code after loaded page sometimes. So we need to update the Read more…
I will show a way to export CPlusPlus algorithm to javascript code. Write Pollard’s rho algorithm in class Resolver for integer factorization. resolver.h #include <string> typedef long long LL; class Resolver { public: Resolver(); ~Resolver(); std::string GetResolvedResult(int x); protected: void Read more…
We will render math Formula in browser by Js engine MathJax. Download the mathjax package to host it from our own server. git clone https://github.com/mathjax/MathJax.git mj-tmp mv mj-tmp/es5 <path-to-server-location>/mathjax rm -rf mj-tmp Write a JS file which import mathjax to Read more…
Create a file GetPrimers.c which has a simple math function. #include <stdio.h> // export the function. #ifdef __EMSCRIPTEN__ #include <emscripten.h> EMSCRIPTEN_KEEPALIVE #endif int compute( int a, int b ) { int ans = 1; for( int i = 0; i Read more…
I found a new way to make interpolation spline curve smoother. Let’s explore it based on the previous post, VTK – Make Interpolation Spline Curve Smoother. Take every point and its neighbor points on the curve, generate two vectors and Read more…
I have two old posts about draw display bounding box, VTK: Show Display Bounds After Project Points and VTK: Show Display Bounds. But they didn’t give me a statisfy result.In this post, I find feature edges of the mesh firstly, Read more…