view direction

基本解釋

The viewing direction could be altered arbitrarily.
可任意改變觀察方向，實(shí)時刷新圖像；
In an orthographic projection, also called "orthonormal", on the other hand, you have a viewing direction but not a viewing point O.
另一方面，在所謂垂直投影（也叫規(guī)格化正交投影）中，你是從一個方向上進(jìn)行觀察，而不是一個觀察點(diǎn)。
Constructivism sets a new angle of viewing teaching and learning, it provides an important direction of the teaching of complex variables and integral commutation.
建構(gòu)主義教學(xué)觀為復(fù)變函數(shù)與積分變換的教學(xué)提供了重要的指導(dǎo)意義。