Category: C++
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Basic tutorials for Eigen3 library for C++
Eigen is a popular C++ library for linear algebra and matrix operations. Here are some basic tutorials for getting started with Eigen: This creates an rows x cols matrix with uninitialized elements. You can also create a matrix with initialized elements using the following syntax: This creates a 2 x 3 matrix with the elements…
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How to make simple opencascade code based on glfw window
1. Install OCCT and GLFW. On Ubuntu, you can do this by running the following commands in a terminal: 2. Create a new project and include the OCCT and GLFW header files. For example: 3. Initialize GLFW and create a window. You can use the following code as a reference: 4. Initialize OCCT and create…
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How to draw 3D Objects by OpenGL
To visualize 3D objects in C++, you can use a library such as OpenGL or DirectX. Here is an example of how to draw a tetrahedron using OpenGL in C++: This code sets up an OpenGL window and draws a tetrahedron using a series of triangles. The vertices of the tetrahedron are defined using glVertex3f,…
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Basic calculation using C++
Here is an example of how to add two variables in C++: This code defines two variables x and y and assigns them the values 5 and 7, respectively. It then calculates the sum of x and y and stores the result in a third variable sum. Finally, it prints the value of sum to…