定标因子 meaning in Chinese

scaling factor
scaling ratio

The variational parameter multiplying each coordinate is called a scale factor .
每个坐标所乘的变分参数叫定标因子。
In computer graphics , enlarging or diminishing all or part of a display image . scaling does not have to be carried out with the same factor in all directions
在计算机图形学中，放大或缩小整个或部分显示图象。在图象的各个方向上，定标因子可不同。