Definition Coordinates

Definition (Object Space) Coordinates define how an object is actually created. In object space, the origin of the object is located at X=0, Y=0, Z=0. All the other points in the object are defined by coordinates along the object's internal X, Y, and Z axes.

This coordinate system uses the object's internal axes as a reference for transformations. When you enter transformation values using this system, you change how the object is defined to include the position of its origin, its size, and orientation. In Definition transformations, the origin point of the object always remains at Object Space 0, 0, 0. As you move or scale the object, it changes, moves or grows along its internal axes, but the origin remains at 0, 0, 0. This can cause some unpredictable results. For example, if you scale an object using Definition Coordinates, the origin point will no longer be in the exact center of the object. When you rotate the object, it won't rotate around its center.

In this example, an object was scaled using Definition Coordinates and then rotated. You can see that it no longer rotates around its center.

Transforming using Definition Coordinates is not the same as using Object Space with one of the Transformation tools. When you choose Object Space for one of the transformation tools, transformations are performed using Object Space axes as a reference, but the final position, or size, is calculated using Absolute Coordinates. So in this case the object origin and all its points move along with the object.

When you use Definition Coordinates to transform an object, you're redefining how the object is created, so its origin does not change as the size and position change.

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