By introducing the concept of coordinate correlation, those random and scattered coordinate points were correlated as an organic whole via physical and logical relations.
引入坐标关联的概念，将那些无序、零散的坐标点用物理、逻辑关系关联起来，使之成为有机的整体。
2
The coordinate system must therefore be mapped from logical Cartesian coordinates to physical screen coordinates.
因此，坐标系统需要从逻辑坐标系转换到物理坐标系上去。
3
The screen now contains two coordinate systems: physical and logical.