Motion Tracker Tags

动作追踪标签

These tags help calibrate the collection of points lying loosely in 3D space with indistinct sizes that is generated after a Motion Tracker 3D solve has been successfully created (these tags also work in conjunction with the Objekt Tracker, only that the Object Tracker coordinate system will be adapted and not the world coordinate system’s axes).

这些标签有助于校准松散地放置在3D 空间中的点的集合，这些点的大小是在成功创建运动跟踪器3D 解决方案后生成的模糊大小(这些标签也与 Objekt 跟踪器一起工作，只是物体跟踪器坐标系将被调整而不是世界坐标系的轴)。

Note that:

请注意:

• Tags that are used to calibrate the camera reconstruction lie on the Motion Tracker object 标签，是用来校准相机重建躺在运动跟踪器对象
• Tags used for calibrating object tracking lie on the Object Tracker 标签用于校准目标跟踪躺在目标跟踪器

For example, if you have added a User Track onto which an object should be placed, the Position Constraint tag can be used to place the world origin on the respective Null object and precisely position the 3D object.

例如，如果您已经添加了一个用户跟踪，一个对象应该被放置，位置约束标签可以用来放置世界原点在各自的 Null 对象和精确的位置3D 对象。

In most cases, the following three tags can be used for calibration after a camera has been solved (note that these are primarily designed for use with the Solve ModeFull 3D Reconstruction function; the functionality is restricted when used with other modes):

在大多数情况下，以下三个标签可以在相机解决后用于校准(注意，这些标签主要是为了使用 Solve ModeFull 3D Reconstruction 功能而设计的; 当与其他模式一起使用时，功能受到限制) :

• Position Constraint 位置限制
• Vector Constraint 矢量约束
• Planar Constraint 平面约束

After calibration, the world origin and axis orientation will lie in a position relative to the collection of points respectively footage, i.e., you’ve adapted the 3D space to the footage: the size and perspective of the 2m-long table edge in the footage matches the 2m-long cube placed along the X axis.

经过校准，世界原点和轴的方向将在一个位置相对于点的收集分别进尺，也就是说，您已经调整了3D 空间的进尺: 在进尺中的2m 长的表边缘的大小和透视与沿 x 轴放置的2m 长的立方体相匹配。

Generally speaking, 2 Vector Constraint tags (with different axes) or 1 Vector Constraint and 1 Planar Constraint tag (both with different axes) are required in order to define the orientation of a 3D solve. It is also possible to lock the orientation using a Camera Constraint tag. If multiple Constraint tags are created with contradictory settings, these will be evaluated from front to rear and as soon as position, scale and orientation are clearly defined, the following tags will be ignored. For example, if you have three Vector Constraint tags of which the first two already define different axes. This means that the third axis is automatically defined and the third tag will be ignored.

一般来说，为了定义一个三维求解的方向，需要两个矢量约束标签(轴不同)或一个矢量约束标签和一个平面约束标签(轴不同)。也可以使用 Camera Constraint 标签锁定方向。如果多个 Constraint 标签是用相互矛盾的设置创建的，这些将从前到后进行评估，一旦位置、规模和方向被明确定义，以下标签将被忽略。例如，如果您有三个 Vector Constraint 标记，前两个标记已经定义了不同的轴。这意味着第三个轴是自动定义的，第三个标记将被忽略。

Note that when one of the Motion Tracker tags is selectec, Tracks themselves can no longer be modified. Cinema 4D will switch to a mode in which the Tracks will serve as snapping targets when you move the points interactively in the Viewport. Cinema 4D will exit this mode when the respective tag is deselected.

请注意，当一个运动跟踪器标签是 selectec，轨道本身不能再修改。4D 影院将切换到一种模式，在这种模式下，当你在视窗中以交互方式移动点时，轨道将作为捕捉目标。Cinema 4D 将退出这种模式时，各自的标记取消选择。

Position Constraint

位置限制

Vector Constraint

矢量约束

Planar Constraint

平面约束

Mask Constraint

掩码约束

Camera Orientation Constraint

摄像机方向限制