Placing Models and Objects on Your Terrain在地形上放置模型和对象

If you like arranging furniture, blank terrain is as exciting as moving into a new home: Everything is clean and open and ready for your stuff. 如果你喜欢布置家具，空白地带就像搬进新家一样令人兴奋：一切都是干净、开放的，为你的东西做好了准备。Can’t wait to set the house you designed onto its site, model a winding path through your garden, and fill the landscape with plants and trees? You’re in the right place.迫不及待地想把你设计的房子放在它的场地上，在花园里建一条蜿蜒的小路，用植物和树木填充景观吗？你来对地方了。

In SketchUp, two Sandbox tools help you place objects on terrain: 在SketchUp中，两个沙盒工具可帮助您将对象放置在地形上：

  • Stamp tool:盖章工具： This tool stamps a flat surface onto your terrain and creates a transition from that flat surface to the surrounding terrain.此工具在地形上压印一个平面，并创建从该平面到周围地形的过渡。
  • Drape tool:窗帘工具： This tool enables you to transfer edges from a face onto your terrain, so that the edges follow your terrain’s curves.此工具使您能够将边从面转移到地形上，使边遵循地形的曲线。

In the following sections, find out how to stamp or drape geometry onto your TIN (triangulated irregular network).在以下部分中，了解如何将几何图形压印或覆盖到三角网（三角不规则网络）上。

Table of Contents目录
  1. Stamping a surface onto a TIN在三角网上压印曲面
  2. Draping edges onto a TIN将边悬垂到三角网上

Stamping a surface onto a TIN在三角网上压印曲面

When your 3D object is a group or component, the Stamp tool uses your object’s bottom to create a flat pad for your 3D object. So, before you begin using the Stamp tool, turn your object into a group or component. 当您的3D对象是一个组或组件时，Stamp工具会使用对象的底部为3D对象创建一个平面垫。因此，在开始使用Stamp工具之前，请将对象转换为组或组件。

Tip: For a refresher on groups, see Organizing a Model and Grouping Geometry. For the scoop on creating components, check out Creating a Basic Component.有关组的复习信息，请参阅组织模型和分组几何图形。有关创建组件的独家新闻，请查看创建基本组件。

When you’re ready to stamp your TIN with a group or component, follow these steps:当您准备用组或组件标记TIN时，请执行以下步骤：

  1. Move the group or component so that it hovers above your TIN, in the position where you want to create the stamp.移动组或组件，使其在要创建戳记的位置悬停在三角网上方。
  2. Click the Stamp tool () on the Sandbox toolbar or select Tools > Sandbox > Stamp from the menu bar.
  3. Click the group or component that you want to use as a stamp.
  4. Type an offset value and press Enter (Microsoft Windows) or Return (Mac OS X). This sets how much space you have to create a transition between your group or component and the terrain. The value you choose depends on how you want your object to blend in (or not) with the surrounding terrain, as well as how flat or sloped your terrain is.
  5. Click your terrain. The pad for your group or component appears, and the cursor changes into an up and down arrow, as shown in the figure (Callout 1).
  6. Move the mouse cursor up or down to set the flat pad’s height.向上或向下移动鼠标游标以设置平板的高度。
  7. Click to finish the stamp operation. When you’re done, you can use the Move tool to set your group or component on its flat surface, as shown on the right in the figure (Callout 2).单击以完成戳记操作。完成后，可以使用“移动”工具在其平面上设置组或组件，如图（标注2）右侧所示。

Tip: After you create the flat pad but before you set your group or component on top of the pad, you might need to flip edges, as explained in Sculpting and Fine-Tuning Terrain.创建平面垫后，但在将组或组件设置在垫上之前，可能需要翻转边缘，如雕刻和微调地形中所述。

Note: The Stamp doesn’t work on a group or component whose context is open for editing. If you’re having trouble using the Stamp tool, check whether an open group or component context is causing the problem. Stamp不适用于其上下文已打开进行编辑的组或组件。如果您在使用Stamp工具时遇到问题，请检查是否是打开的组或组件上下文导致了问题。Also, your stamp doesn’t need to be a group or component. 此外，您的印章不需要是一个组或组件。You can use a face, too. However, this section focuses on stamping with a group or component because a 2D face is rarely used as a stamp. 你也可以用脸。但是，本节重点介绍使用组或组件进行冲压，因为二维面很少用作冲压。Most often, a 3D model that contains several edges and faces is the stamp, and you want the flat pad to match the bottom of your 3D model.通常，包含多个边和面的3D模型是图章，您希望平垫与3D模型的底部相匹配。

Draping edges onto a TIN将边悬垂到三角网上

When you use the Drape tool, SketchUp transfers edges from a flat face onto a TIN’s curved surface. 使用“悬垂”工具时，SketchUp会将边从平面转移到三角网的曲面上。

Tip: To create the edges that you want to transfer onto your TIN, draw a rectangular face above your TIN. Then, draw the edges on the flat rectangle with the faces in X-Ray mode, so that you can see the TIN underneath. 要创建要转移到三角网上的边，请在三角网上方绘制一个矩形面。然后，在X射线模式下用面在平面矩形上绘制边，以便可以看到下面的三角网。You can then erase the edges and faces you don’t need, leaving only the ones that you want to drape onto your TIN, as shown on the left in the figure (Callout 1).然后，您可以擦除不需要的边和面，只留下要覆盖到三角网上的边和面的，如图（标注1）左侧所示。

When you’re ready to drape the edges, follow these steps:当您准备好覆盖边缘时，请按照以下步骤操作：

  1. Select the edges you want to drape over the TIN.选择要覆盖三角网的边。
  2. Select the Drape tool () from the Sandbox toolbar or select Tools > Sandbox > Drape.从沙盒工具栏中选择“覆盖”工具（），或选择“工具”>“沙盒”>“覆盖”。
  3. Click the TIN to drape the selected edges onto the TIN, as shown on the right in the following figure (Callout 2).单击三角网以将选定边覆盖到三角网上，如下图（详图2）右侧所示。

Tip: After you drape edges onto your terrain, you can hide or delete the face that used to create the edges initially. You can apply a material to the faces within your draped edges, setting them off from the rest of the terrain. 将边悬垂到地形上后，可以隐藏或删除最初用于创建边的面。您可以将材质应用于覆盖边缘内的面，将其与地形的其他部分区分开来。You can also hide the edges. 您还可以隐藏边缘。For details about adding materials, see Applying Colors, Photos, Materials, and Textures. You find steps for hiding edges in Softening, Smoothing, and Hiding Geometry. 有关添加材质的详细信息，请参阅应用颜色、照片、材质和纹理。您可以在“柔化”、“平滑”和“隐藏几何体”中找到隐藏边的步骤。In the following figure, you see the slope with a slightly darker color applied to the path, and the edges around the stamped area and the draped area are hidden.在下图中，您可以看到路径应用了稍深颜色的坡度，冲压区域和覆盖区域周围的边缘被隐藏。