Qt+opengl实现用鼠标控制视图角度-Qt+opengl achieved using the mouse to control the view angle

实现扩散的计算（菲克定律）与可视化（OpenGL）。按上箭头可调到下一时刻。鼠标右键拖动。鼠标左键调整显示方式-Computing to achieve diffusion (Fick' s law) and visualization (OpenGL). Press the arrow to the next moment. The right mouse button and drag. The left mouse button to adjust the display mode

读取数据文件，根据数据绘制图形，并实现鼠标捕捉和响应(Read the data file, draw graphics according to the data, and achieve mouse capture and response)