Sao Chép Vị Trí Ràng Buộc (Copy Location Constraint)¶

The Copy Location constraint forces its owner to have the same location as its target.

Quan trọng

Ghi chú là nếu bạn sử dụng một ràng buộc như vậy trên một xương "kết nối" thì nó sẽ không có ảnh hưởng gì hết, vì nó là đỉnh của Phụ Huynh, tức cái điều khiển vị trí gốc xương chủ sử hữu của bạn.

Các Tùy Chọn (Options)¶

../../../_images/animation_constraints_transform_copy-location_panel.png — Copy Location panel.¶

Mục Tiêu (Target): ID Dữ Liệu (Data ID) used to select the constraints target, and is not functional (red state) when it has none. See common constraint properties for more information.
Axis (Trục): Những nút bấm này Điều Khiển trục nào là cái được ràng buộc.
Đảo Nghịch (Invert): Invert their respective corresponding axis coordinates.
Dịch Chuyển (Offset): When enabled, this control allows the owner to be moved (using its current transform properties), relative to its target's position.
Mục Tiêu/Chủ Nhân (Target/Owner): Standard conversion between spaces. See common constraint properties for more information.
Tác Động/Ảnh Hưởng (Influence): Controls the percentage of affect the constraint has on the object. See common constraint properties for more information.

Một Số Ví Dụ (Examples)¶

Animation (Hoạt Họa)¶

Let us animate a solar system with the Copy Location constraint and its Offset option. You can make the owner, called "moon", describe perfect circles centered on the world origin (using e.g. Location X/Y sine and cosine F-Curves, see Bộ Điều Chỉnh Hàm Gắn Sẵn (Built-in Function Modifier)). Then copy the location of a target "earth" with the Offset checkbox enabled to model a satellite in a (simplified) orbit around its planet. Repeat these steps for more planets circling around its center star "sun".

Following video is a small animation of a solar system created using (among a few others) the previously described technique:

Note that, this 'solar' system is not realistic at all (the wrong scale, the earth is rotating in the wrong direction around the sun, ...).

You can download the blend-file used to create this animation.

Furthermore you can also animate a few properties of each constraint using animation curves: e.g. you can animate the Influence of a constraint. It is used to first let the camera follow the moon, then the earth, and finally using two Copy Location constraints with Offset set.