Sisäkoordinaatit

Sisäkoordinaatit refers to the internal coordinate system of an object or a scene within a larger spatial context. Unlike external or world coordinates, which define an object's position and orientation in a global frame of reference, sisäkoordinaatit describe the object's own structure and geometry. This system is anchored to the object itself, with its origin and axes typically defined by specific points or features of the object, such as its center of mass, a designated corner, or a principal axis.

The concept of sisäkoordinaatit is fundamental in fields like computer graphics, robotics, and engineering. In computer graphics, for example, each 3D model has its own internal coordinate system. Transformations like translation, rotation, and scaling are often applied to the object in its sisäkoordinaatit before its final position and orientation in the world coordinates are determined. This simplifies the process of manipulating individual objects and their components.

Similarly, in robotics, a robot arm's joints and end-effector are described using sisäkoordinaatit, allowing for precise control over its movements relative to its own base. Understanding the distinction between internal and external coordinate systems is crucial for accurately representing and manipulating objects in virtual or physical environments. It allows for a hierarchical approach to spatial description, where objects can be defined independently and then placed within a broader context.