来源及其参数

Elevation and Imagery are the basis required for the terrain generation.高程和照片是地形生成所需的基础。

Mask is a useful tool to automatically generate vegetation in specific areas of the terrain and create terrain details that can be used to modify the visual representation of the terrain (Terrain Global or Landscape Terrain).蒙版是一个有用的工具，可以自动生成特定区域的地形植被，并创建地形细节，可用于修改地形的可视化表示( Terrain Global或Landscape terrain )。

Sandworm allows placing objects on the generated terrain according to the georeferenced data, such as:Sandworm允许根据地理引用数据在生成的地形上放置对象，例如：

• Trees and grass 树和草
• Roads道路
• Landmarks, specific buildings and structures, fences, pipelines, and other lengthy structures地标、特定的建筑物和结构、围栏、管道和其他冗长的结构
• Urban disctricts consisting of numerous houses made of various materials由各种材质建造的大量房屋组成的市区

Object names may be set and changed as necessary either in the Sources or in the Parameters window. This name is also used for the generated objects in the World Nodes hierarchy window.可以在Sources或Parameters窗口中根据需要设置和更改对象名称。这个名称也用于World Nodes层次结构窗口中生成的对象。

Georeferenced Images are the data files already available on a PC:Georeferenced Images是PC上已经可用的数据文件：

• Assets — files that are added to the file system and represent a part of the project. Depending on the size of assets, they can be stored in the /data directory or added as a mount. This approach is recommended for teamwork.Assets 是添加到 文件系统 并代表项目一部分的文件。 根据资源的大小，它们可以存储在 /data 目录或添加为 安装。 建议将此方法用于团队合作。

  注意

  We recommend importing image files as Unchanged, in order to avoid creating the unnecessary runtime files.我们建议以Unchanged的形式导入照片文件，以避免创建不必要的运行时文件。
• External Files — files stored on the PC that are not a part of the file system. This type of data source may be helpful if the file extension is unknown to the file system. However, keep in mind that if you share this project, the path to the external file has to be updated accordingly.External Files 是文件存储在电脑上不是一个文件系统的一部分。这种类型的数据源可能是有用的，如果文件扩展名是未知的文件系统。然而，请记住，如果您分享这个项目，外部文件的路径必须相应更新。

File location — path to the file or group of files to be added. Multiple selection allows adding a number of files simultaneously and adds them as separate layers.文件位置是要添加的文件或文件组的路径。多重选择允许同时添加多个文件，并将它们作为单独的层添加。

The TMS source type is designed for using Tile Map Services for terrain generation. This option is available for both raster and vector data types.TMS源类型是专为使用Tile Map Services地形生成。这个选项是可用的光栅和矢量数据类型。

To download the data for this source type, you need to set the boundaries.要下载此源类型的数据，需要设置边界。

TMS URL

A URL of the online data source. You can use any of the suggested sources or add your own. The scope of data is defined by the boundaries.在线数据源的 URL。 您可以使用任何建议的来源或添加您自己的来源。 数据范围由 边界 定义。 Adding Custom URLs添加自定义url To add a URL, select the Add URL line in the drop-down window or click the image on the right:添加一个网址，选择Add URL行下拉窗口或点击右边的形象： The following window will open to manage URLs:将打开以下窗口来管理url： Requirements to TMS URLs:Requirements to TMS URLs： A link to a Tile Map Service inserted as the URL should have x, y, and z embraced into curly brackets ({}).作为URL插入到图块地图服务的链接应该有x， y和z包含在花括号({})中。 For example:例如： The link to the OpenStreetMap tile map service (http://a.tile.openstreetmap.org/z/x/y.png) should be used as follows:OpenStreetMap 地图服务的链接(http://a.tile.openstreetmap.org/z/x/y.png)应该这样使用： http://a.tile.openstreetmap.org/{z}/{x}/{y}.pnghttp://a.tile.openstreetmap.org/{z}/{x}/{y}.png The link to ArcGIS Online data (https://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer/tile/z/y/x.png) should be used as follows:链接到ArcGIS Online数据(https://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer/tile/z/y/x.png)应该这样使用： https://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer/tile/{z}/{y}/{x}.pnghttps://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer/tile/{z}/{y}/{x}.png For sources that require tokens, the link should be arranged in the following way:为需要标记的来源，应安排在以下的方式： https://api.mapbox.com/v4/mapbox.terrain-rgb/{z}/{x}/{y}.pngraw?access_token=your_tokenhttps://api.mapbox.com/v4/mapbox.terrain-rgb/{z}/{x}/{y}.pngraw?access_token=your_token 注意 The sources that require login and password input are currently not supported.目前不支持需要登录和密码输入的源代码。

Zoom Level

Zoom level specifies the scale of the source data to be downloaded. Data providers have their own zoom levels defined; therefore, this value depends on the source. For example, OSM has the following zoom levels.缩放级别指定要下载的源数据的比例。 数据提供者定义了自己的缩放级别； 因此，该值取决于来源。 例如，OSM 具有以下 缩放级别。 Higher zoom levels provide a more detailed data but affect the generation speed and create a higher load.更高的缩放级别提供更详细的数据，但会影响生成速度并产生更高的负载。