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205 lines
10 KiB
ReStructuredText
205 lines
10 KiB
ReStructuredText
:github_url: hide
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.. _class_SplineIK3D:
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SplineIK3D
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==========
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**继承：** :ref:`ChainIK3D<class_ChainIK3D>` **<** :ref:`IKModifier3D<class_IKModifier3D>` **<** :ref:`SkeletonModifier3D<class_SkeletonModifier3D>` **<** :ref:`Node3D<class_Node3D>` **<** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`
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A :ref:`SkeletonModifier3D<class_SkeletonModifier3D>` for aligning bones along a :ref:`Path3D<class_Path3D>`.
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.. rst-class:: classref-introduction-group
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描述
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----
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A :ref:`SkeletonModifier3D<class_SkeletonModifier3D>` for aligning bones along a :ref:`Path3D<class_Path3D>`. The smoothness of the fitting depends on the :ref:`Curve3D.bake_interval<class_Curve3D_property_bake_interval>`.
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If you want the :ref:`Path3D<class_Path3D>` to attach to a specific bone, it is recommended to place a :ref:`ModifierBoneTarget3D<class_ModifierBoneTarget3D>` before the **SplineIK3D** in the :ref:`SkeletonModifier3D<class_SkeletonModifier3D>` list (children of the :ref:`Skeleton3D<class_Skeleton3D>`), and then place a :ref:`Path3D<class_Path3D>` as the :ref:`ModifierBoneTarget3D<class_ModifierBoneTarget3D>`'s child.
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Bone twist is determined based on the :ref:`Curve3D.get_point_tilt()<class_Curve3D_method_get_point_tilt>`.
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If the root bone joint and the start point of the :ref:`Curve3D<class_Curve3D>` are separated, it assumes that there is a linear line segment between them. This means that the vector pointing toward the start point of the :ref:`Curve3D<class_Curve3D>` takes precedence over the shortest intersection point along the :ref:`Curve3D<class_Curve3D>`.
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If the end bone joint exceeds the path length, it is bent as close as possible to the end point of the :ref:`Curve3D<class_Curve3D>`.
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.. rst-class:: classref-reftable-group
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属性
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----
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.. table::
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:widths: auto
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+-----------------------+---------------------------------------------------------------+-------+
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| :ref:`int<class_int>` | :ref:`setting_count<class_SplineIK3D_property_setting_count>` | ``0`` |
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+-----------------------+---------------------------------------------------------------+-------+
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.. rst-class:: classref-reftable-group
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方法
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----
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.. table::
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:widths: auto
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+---------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`NodePath<class_NodePath>` | :ref:`get_path_3d<class_SplineIK3D_method_get_path_3d>`\ (\ index\: :ref:`int<class_int>`\ ) |const| |
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+---------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`int<class_int>` | :ref:`get_tilt_fade_in<class_SplineIK3D_method_get_tilt_fade_in>`\ (\ index\: :ref:`int<class_int>`\ ) |const| |
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+---------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`int<class_int>` | :ref:`get_tilt_fade_out<class_SplineIK3D_method_get_tilt_fade_out>`\ (\ index\: :ref:`int<class_int>`\ ) |const| |
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+---------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`bool<class_bool>` | :ref:`is_tilt_enabled<class_SplineIK3D_method_is_tilt_enabled>`\ (\ index\: :ref:`int<class_int>`\ ) |const| |
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+---------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`set_path_3d<class_SplineIK3D_method_set_path_3d>`\ (\ index\: :ref:`int<class_int>`, path_3d\: :ref:`NodePath<class_NodePath>`\ ) |
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+---------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`set_tilt_enabled<class_SplineIK3D_method_set_tilt_enabled>`\ (\ index\: :ref:`int<class_int>`, enabled\: :ref:`bool<class_bool>`\ ) |
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+---------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`set_tilt_fade_in<class_SplineIK3D_method_set_tilt_fade_in>`\ (\ index\: :ref:`int<class_int>`, size\: :ref:`int<class_int>`\ ) |
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+---------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`set_tilt_fade_out<class_SplineIK3D_method_set_tilt_fade_out>`\ (\ index\: :ref:`int<class_int>`, size\: :ref:`int<class_int>`\ ) |
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+---------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------+
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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属性说明
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--------
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.. _class_SplineIK3D_property_setting_count:
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.. rst-class:: classref-property
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:ref:`int<class_int>` **setting_count** = ``0`` :ref:`🔗<class_SplineIK3D_property_setting_count>`
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.. rst-class:: classref-property-setget
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- |void| **set_setting_count**\ (\ value\: :ref:`int<class_int>`\ )
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- :ref:`int<class_int>` **get_setting_count**\ (\ )
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设置的数量。
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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方法说明
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--------
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.. _class_SplineIK3D_method_get_path_3d:
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.. rst-class:: classref-method
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:ref:`NodePath<class_NodePath>` **get_path_3d**\ (\ index\: :ref:`int<class_int>`\ ) |const| :ref:`🔗<class_SplineIK3D_method_get_path_3d>`
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Returns the node path of the :ref:`Path3D<class_Path3D>` which is describing the path.
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.. rst-class:: classref-item-separator
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----
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.. _class_SplineIK3D_method_get_tilt_fade_in:
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.. rst-class:: classref-method
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:ref:`int<class_int>` **get_tilt_fade_in**\ (\ index\: :ref:`int<class_int>`\ ) |const| :ref:`🔗<class_SplineIK3D_method_get_tilt_fade_in>`
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Returns the tilt interpolation method used between the root bone and the start point of the :ref:`Curve3D<class_Curve3D>` when they are apart. See also :ref:`set_tilt_fade_in()<class_SplineIK3D_method_set_tilt_fade_in>`.
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.. rst-class:: classref-item-separator
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----
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.. _class_SplineIK3D_method_get_tilt_fade_out:
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.. rst-class:: classref-method
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:ref:`int<class_int>` **get_tilt_fade_out**\ (\ index\: :ref:`int<class_int>`\ ) |const| :ref:`🔗<class_SplineIK3D_method_get_tilt_fade_out>`
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Returns the tilt interpolation method used between the end bone and the end point of the :ref:`Curve3D<class_Curve3D>` when they are apart. See also :ref:`set_tilt_fade_out()<class_SplineIK3D_method_set_tilt_fade_out>`.
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.. rst-class:: classref-item-separator
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----
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.. _class_SplineIK3D_method_is_tilt_enabled:
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.. rst-class:: classref-method
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:ref:`bool<class_bool>` **is_tilt_enabled**\ (\ index\: :ref:`int<class_int>`\ ) |const| :ref:`🔗<class_SplineIK3D_method_is_tilt_enabled>`
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Returns if the tilt property of the :ref:`Curve3D<class_Curve3D>` affects the bone twist.
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.. rst-class:: classref-item-separator
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----
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.. _class_SplineIK3D_method_set_path_3d:
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.. rst-class:: classref-method
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|void| **set_path_3d**\ (\ index\: :ref:`int<class_int>`, path_3d\: :ref:`NodePath<class_NodePath>`\ ) :ref:`🔗<class_SplineIK3D_method_set_path_3d>`
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Sets the node path of the :ref:`Path3D<class_Path3D>` which is describing the path.
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.. rst-class:: classref-item-separator
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----
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.. _class_SplineIK3D_method_set_tilt_enabled:
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.. rst-class:: classref-method
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|void| **set_tilt_enabled**\ (\ index\: :ref:`int<class_int>`, enabled\: :ref:`bool<class_bool>`\ ) :ref:`🔗<class_SplineIK3D_method_set_tilt_enabled>`
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Sets if the tilt property of the :ref:`Curve3D<class_Curve3D>` should affect the bone twist.
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.. rst-class:: classref-item-separator
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----
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.. _class_SplineIK3D_method_set_tilt_fade_in:
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.. rst-class:: classref-method
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|void| **set_tilt_fade_in**\ (\ index\: :ref:`int<class_int>`, size\: :ref:`int<class_int>`\ ) :ref:`🔗<class_SplineIK3D_method_set_tilt_fade_in>`
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If ``size`` is greater than ``0``, the tilt is interpolated between ``size`` start bones from the start point of the :ref:`Curve3D<class_Curve3D>` when they are apart.
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If ``size`` is equal ``0``, the tilts between the root bone head and the start point of the :ref:`Curve3D<class_Curve3D>` are unified with a tilt of the start point of the :ref:`Curve3D<class_Curve3D>`.
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If ``size`` is less than ``0``, the tilts between the root bone and the start point of the :ref:`Curve3D<class_Curve3D>` are ``0.0``.
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.. rst-class:: classref-item-separator
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----
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.. _class_SplineIK3D_method_set_tilt_fade_out:
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.. rst-class:: classref-method
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|void| **set_tilt_fade_out**\ (\ index\: :ref:`int<class_int>`, size\: :ref:`int<class_int>`\ ) :ref:`🔗<class_SplineIK3D_method_set_tilt_fade_out>`
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If ``size`` is greater than ``0``, the tilt is interpolated between ``size`` end bones from the end point of the :ref:`Curve3D<class_Curve3D>` when they are apart.
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If ``size`` is equal ``0``, the tilts between the end bone tail and the end point of the :ref:`Curve3D<class_Curve3D>` are unified with a tilt of the end point of the :ref:`Curve3D<class_Curve3D>`.
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If ``size`` is less than ``0``, the tilts between the end bone and the end point of the :ref:`Curve3D<class_Curve3D>` are ``0.0``.
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.. |virtual| replace:: :abbr:`virtual (本方法通常需要用户覆盖才能生效。)`
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.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
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.. |const| replace:: :abbr:`const (本方法无副作用，不会修改该实例的任何成员变量。)`
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.. |vararg| replace:: :abbr:`vararg (本方法除了能接受在此处描述的参数外，还能够继续接受任意数量的参数。)`
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.. |constructor| replace:: :abbr:`constructor (本方法用于构造某个类型。)`
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.. |static| replace:: :abbr:`static (调用本方法无需实例，可直接使用类名进行调用。)`
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.. |operator| replace:: :abbr:`operator (本方法描述的是使用本类型作为左操作数的有效运算符。)`
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.. |bitfield| replace:: :abbr:`BitField (这个值是由下列位标志构成位掩码的整数。)`
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.. |void| replace:: :abbr:`void (无返回值。)`
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