选择和放置节点

The main functions of node's selection and positioning are available via the Positioning panel.节点选择和定位的主要功能可以通过定位面板获得。

All available controls for selecting and positioning nodes can be found on the Nodes tab of the Editor Hotkeys settings.用于选择和定位节点的所有可用控件都可以在 Editor Hotkeys 设置的 Nodes 选项卡上找到。

To select a single node in the scene, choose on the Positioning panel (or press Q) and click the left mouse button on this node. In this case, only the mesh surface you have clicked is selected. To select several mesh surfaces, hold Shift and click required surfaces.要选择场景中的单个节点，请在Positioning面板上选择 （或按 Q）并在该节点上单击鼠标左键。在这种情况下，只会选择您单击的网格曲面。要选择多个网格曲面，请按住 Shift 并单击所需的曲面。

注意

You can convert the selected node to a NodeReference by pressing Ctrl+Shift+G (or click Edit -> Convert to NodeReference).您可以通过按 Ctrl+Shift+G（或单击 Edit -> Convert to NodeReference）将选定节点转换为 NodeReference。

To select several nodes, do either of the following:要选择多个节点，请执行以下任一操作：

• Use the selection box: click and hold the left mouse button, drag the mouse to select the required nodes. In this case, all surfaces of each mesh (if they exist) are selected.使用选择框：单击并按住鼠标左键，拖动鼠标选择需要的节点。在这种情况下，每个网格的所有表面（如果存在）都被选中。

  

  Select using Selection Box使用选择框选择

• Select one of the nodes, press and hold Shift to add nodes to the selection and Ctrl to remove.选择其中一个节点，按住 Shift 将节点添加到选择中，按住 Ctrl 删除。

  

  Add and remove nodes from selection从选择中添加和删除节点

注意

To select all nodes in the world, press Ctrl+A.要选择世界上的所有节点，请按 Ctrl+A。

When the node is selected, the following is shown:选择节点后，显示如下：

• Wireframe of the node节点的线框
• Bounding box of the node节点的边界框
• Bounding box of the selected surface (or surfaces)选定曲面（或曲面）的边界框

The total number of currently selected nodes is displayed in the Parameters window.当前选择的节点总数显示在 Parameters 窗口中。

To remove nodes from the selection (deselect), press and hold Ctrl and click the left mouse button on the required nodes.要从选择中删除节点（取消选择） ，请按住 Ctrl 并在所需节点上单击鼠标左键。

To deselect all selected nodes, press Esc or Ctrl+Shift+A.要取消选择所有选定节点，请按 Esc 或 Ctrl+Shift+A。

The selected nodes can be positioned in the world by using one of the ways described below.可以使用所描述的方式之一在世界中定位选定的节点以下.

注意

You can set a pivot point relative to which the selected nodes will be transformed.你可以设置一个中心点相对于选定的节点将被转换。

Inverse Selection

逆向选择#

To transform nodes, choose the required transformation mode (manipulator) on the Positioning panel of the Toolbar.要变换节点，请在工具栏的定位面板上选择所需的变换模式（操纵器）：

注意

您可以通过 Parameters 窗口指定位置和旋转坐标以及比例因子。

Move Nodes

移动节点#

Rotate Nodes

旋转节点#

Scale Nodes

缩放节点#

To clone a node:克隆节点：

1. Select the node.选择节点。

2. Press Ctrl+D (or Edit -> Clone).按 Ctrl+D（或 Edit -> Clone）。

   注意

   The cloned node will have the same position as the source node.克隆的节点将与源节点具有相同的位置。

To clone and transform a node:要克隆和转换节点：

1. Select the node.选择节点。
2. Choose , , or on the Positioning panel (or press W, E, or R).在定位面板上选择 、 或 （或按 W, E 或 R）。
3. Press and hold Shift and transform the node.按住 Shift 并变换节点。
4. Press Shift + D as many times as required (or press and hold this combination) to create more clones. Every next clone will use the last applied transformation.根据需要多次按 Shift + D（或按住此组合）以创建更多克隆。每个下一个克隆都将使用最后应用的转换。

To clone a node with snapping and manual positioning:使用捕捉和手动定位克隆节点：

1. Enable Snapping By Grid and set the required step value. Step can be set either by direct input of digits or using the box as a slider.启用 Snapping By Grid 并设置所需的步长值。可以通过直接输入数字或使用框作为滑块来设置步长。

   

2. Select an object to be cloned in the world.选择要在世界中克隆的对象。
3. Choose the Move manipulator.选择移动机械手。
4. Press and hold Shift + Alt while dragging an object with the mouse or using arrows on the keyboard. A new clone is created every step.在使用鼠标或使用键盘上的箭头拖动对象时按住 Shift + Alt。每一步都会创建一个新的克隆。

You can also clone the node holding Shift and using the arrow keys. The direction of cloning is projection-dependent: 你也可以克隆持有 Shift 并使用箭头键的节点。克隆的方向取决于投影：

To delete a node, select it and press Delete (or click Edit -> Delete Object).要删除节点，请选择它并按 Delete（或单击 Edit -> Delete Object）。

Transformations of the node are relative to the pivot point. The pivot point is used to control the way nodes rotate and scale.节点的变换是相对于枢轴点的。枢轴点用于控制节点旋转和缩放的方式。

To rotate or scale several nodes, select them, choose the required manipulator, and specify the position of its pivot point by using the pivot point toggle.要旋转或缩放多个节点，选择它们，选择所需的机械手，并使用枢轴点切换指定其枢轴点的位置。

注意

If one node is selected, the pivot point position will not change when toggling.如果选择一个节点，则切换时枢轴点位置不会改变。

• If the button is active, the pivot point is set to the center of selection.如果 按钮处于活动状态，则将枢轴点设置为选择中心。
• If the button is active, the pivot point is set to the center of the last selected node.如果 按钮处于活动状态，则将枢轴点设置为最后一个选定节点的中心。

注意

To toggle the pivot point, you can press Z.要切换枢轴点，您可以按 Z。

For example:例如：

• If you select several nodes, set the pivot point toggle to Center, and rotate these nodes, they rotate around the center of selection as follows:如果选择多个节点，将枢轴点切换设置为 Center，然后旋转这些节点，它们将围绕选择中心旋转，如下所示：

  

  Pivot point in the center of selection选择中心的枢轴点
  注意

  If you scale the nodes, they are scaled out from or in toward the center of selection.如果您缩放节点，它们会从选择中心向外或向内缩放。

• If you set the pivot point toggle to Pivot and rotate the selected nodes, each node will rotate around its center as follows:如果将枢轴点切换设置为 Pivot 并旋转选定节点，则每个节点将围绕其中心旋转，如下所示：

  

  Pivot point coincides with the center of the last selected node枢轴点与最后一个选定节点的中心重合
  注意

  If you scale nodes, each node is scaled relative to its center.如果缩放节点，则每个节点都相对于其中心进行缩放。

The basis of the manipulator pivot point can be toggled as follows:操纵器枢轴点的基础可以如下切换：

• If the button is active, the world space orientation is used for the manipulator pivot point.如果 按钮处于活动状态，则世界空间方向将用于操纵器枢轴点。

  For example, if you set the combination for the selected nodes and rotate them around the Y axis, you will get the following:例如，如果您为选定的节点设置 组合并围绕 Y 轴旋转它们，您将得到以下信息：

  Before rotation:	After rotation:
  Pivot point is oriented by the world space枢轴点以世界空间为导向	Nodes have been rotated by 45 degrees around the Y axis节点已绕 Y 轴旋转 45 度

• If the button is active, the coordinate system of the parent node is used for the pivot point orientation.如果 按钮处于活动状态，则父节点的坐标系用于枢轴点方向。

  For example, if you set the combination for the selected nodes and rotate them around the Y axis, you will get the following:例如，如果您为选定的节点设置 组合并围绕 Y 轴旋转它们，您将得到以下信息：

  Before rotation:	After rotation:
  Pivot point is oriented by the local basis of the parent node (the red cube) 枢轴点由父 节点（红色立方体）的局部基础定向	Nodes have been rotated by 45 degrees around the Y axis节点已绕 Y 轴旋转 45 度

• If the button is active, the pivot point is oriented by the local coordinate system of the node. It means that its orientation does not depend on the parent node orientation.如果 按钮处于活动状态，则枢轴点由节点的局部坐标系定向。这意味着它的方向不依赖于父节点的方向。

  For example, if you set the combination for the selected nodes and rotate them around the Y axis, you will get the following:例如，如果您为选定的节点设置 组合并围绕 Y 轴旋转它们，您将得到以下信息：

  Before rotation:	After rotation:
  The pivot point is oriented by the local basis of the last selected node (the green cube) 枢轴点由最后 选择的节点（绿色立方体）的局部基础定向	The nodes have been rotated by 45 degrees around the Y axis节点已绕 Y 轴旋转 45 度

注意

To toggle the manipulator basis, you can press Z.要切换操纵器基础，您可以按 Z。

To perform positioning, rotation, and scaling manipulations with a higher precision, the Positioning panel provides tools that allow defining a manipulation step.为了以更高的精度执行定位、旋转和缩放操作，定位面板提供了允许定义操作步骤的工具。

Snapping Nodes by Grid

按网格捕捉节点#

Snap by Grid enables to position a node along the axis or over the grid with a given arbitrary step (By Grid) or with a step equal to the dimensions of node's bounding box (By Bound Box).Snap by Grid 允许以给定的任意步长(By Grid) 或以等于节点边界框尺寸的步长 (By Bound Box) 沿轴或网格定位节点。

注意

Snapping should be enabled when moving the node by using arrow keys. If disabled, the node is moved by 1 unit by default.使用移动节点时应启用捕捉方向键.如果禁用，节点默认移动 1 单位。

To snap a node by grid:要按网格捕捉节点：

1. Choose on the Positioning panel (or press Shift+W)在定位面板上选择 （或按 Shift+W）

2. Choose By Grid and specify the grid step (in units) using the drop-down box:选择 By Grid 并使用下拉框指定网格步长（以单位为单位）：

   

   Step can be set either by direct input of digits or using the box as a slider.可以通过直接输入数字或使用框作为滑块来设置步长。

   

   Now you can move any node in the world along an axis or across a grid with the given step.现在，您可以使用给定的步长沿轴或跨网格移动世界中的任何节点。

3. Move one of the nodes:移动节点之一：

   • If one axis is chosen (the arrow manipulator is dragged), the node is aligned along the axis.如果选择一个轴（拖动箭头操纵器），则节点沿轴对齐。
   • If a node is repositioned by two axes (the rectangle manipulator is dragged), the node will be aligned by a horizontal or vertical grid.如果一个节点被两个轴重新定位（矩形操纵器被拖动），该节点将通过水平或垂直网格对齐。

   Snapping by an axis按轴捕捉

   Snapping by a grid stripes通过网格条纹捕捉

To snap a node by Bounding Box:通过 Bounding Box捕捉节点：

1. Choose on the Positioning panel (or press Shift+W)在定位面板上选择 （或按 Shift+W）

2. Choose By Bound Box using the drop-down box:使用下拉框选择 By Bound Box：

   

   Now you can move any node in the world along an axis or across a grid with the step equal to the size of the node.现在，您可以沿轴或跨网格移动世界上的任何节点，步长等于节点的大小。

3. Move one of the nodes:移动节点之一：

   • If one axis is chosen (the arrow manipulator is dragged), the node is aligned along the axis.如果选择一个轴（拖动箭头操纵器），则节点沿轴对齐。
   • If a node is repositioned by two axes (the rectangle manipulator is dragged), the node will be aligned by a horizontal or vertical grid.如果一个节点被两个轴重新定位（矩形操纵器被拖动），该节点将通过水平或垂直网格对齐。