【译】QGIS培训手册-操作界面概览

2.3. 操作界面概览(Lesson: An Overview of the Interface)

QGIS 用户界面主要由菜单、 工具栏、 地图画布和图层列表等组成。【译者注:老外说话真tm啰嗦】We will explore the QGIS user interface so that you are familiar with the menus, toolbars, map canvas and layers list that form the basic structure of the interface.

本节课的目的:理解QGIS界面的基本知识。(The goal for this lesson: To understand the basics of the QGIS user interface.)

2.3.1. basic动手试:界面基础( Try Yourself: The Basics)

../../../_images/gui_numbered.png上图中标号的各部分内容分别为:(The elements identified in the figure above are:)

  1. 图层列表 / 资源管理器面板(Layers List / Browser Panel)
  2. 工具栏(Toolbars)
  3. 地图画布(Map canvas)
  4. 状态栏(Status bar)
  5. 侧工具栏(Side Toolbar)

2.3.1.1. basic 图层列表(The Layers List)

在图层列表中,你能看到所有可用图层的列表。(In the Layers list, you can see a list, at any time, of all the layers available to you.)

通过展开折叠项目 (通过单击它们前面的加号) 将为你提供该图层的当前外观的详细信息。(Expanding collapsed items (by clicking the arrow or plus symbol beside them) will provide you with more information on the layer’s current appearance.)

右键点击某个图层,会得到一个很多选项的菜单。过会你会用到这个里面的一些内容,所以先看一下都有哪些选项。(Right-clicking on a layer will give you a menu with lots of extra options. You will be using some of them before long, so take a look around!)

某些版本的QGIS在图层列表的下方有一个单独控制渲染顺序的复选框。别担心如果你不能看到它。如果你没看到,那就不要管他了。如果看到了,就请把它选中。(Some versions of QGIS have a separate Control rendering order checkbox just underneath the Layers list. Don’t worry if you can’t see it. If it is present, ensure that it’s checked for now.)

Note

每个矢量图层都是一个特定类型的数据集,比如道路、 树木等。矢量图层只有点、 线或多边形三种类型。(A vector layer is a dataset, usually of a specific kind of object, such as roads, trees, etc. A vector layer can consist of either points, lines or polygons.)

2.3.1.2. basic 资源管理器面板(The Browser Panel)

QGIS 资源管理器可以让你轻松地在数据库中导航和管理数据文件。可以访问到常见的矢量文件 (例如 ESRI shapefile 或 MapInfo 文件),数据库 (e.g.PostGIS,Oracle、 Spatialite 或 MSSQL 空间) 和 WMS/WFS连接,还可以查看GRASS数据。(The QGIS Browser is a panel in QGIS that lets you easily navigate in your database. You can have access to common vector files (e.g. ESRI shapefile or MapInfo files), databases (e.g.PostGIS, Oracle, Spatialite or MSSQL Spatial) and WMS/WFS connections. You can also view your GRASS data.)

2.3.1.3. basic 工具栏(Toolbars)

你最常使用的工具集可以变成基本访问工具栏。例如,文件工具栏允许您保存、 加载、 打印,并开始一个新项目。你可以轻松地自定义界面,只保留自己最常用的工具栏,可以通过视图 ‣ 工具栏菜单添加或删除工具栏。(Your most oft-used sets of tools can be turned into toolbars for basic access. For example, the File toolbar allows you to save, load, print, and start a new project. You can easily customize the interface to see only the tools you use most often, adding or removing toolbars as necessary via the View ‣ Toolbars menu.)

即使某些工具在工具栏中不可见,所有的工具仍可通过菜单访问。例如,如果您删除文件工具栏 (其中包含保存按钮),您仍可以通过单击文件菜单中的保存来保存您的地图。Even if they are not visible in a toolbar, all of your tools will remain accessible via the menus. For example, if you remove the File toolbar (which contains the Save button), you can still save your map by clicking on the File menu and then clicking on Save.

2.3.1.4. basic 地图画布(The Map Canvas)

这是展示地图的区域(This is where the map itself is displayed.)

2.3.1.5. basic 状态栏(The Status Bar)

向你展示当前地图的信息,同时也允许您调整地图尺寸和查看鼠标光标在当前地图上的坐标。(Shows you information about the current map. Also allows you to adjust the map scale and see the mouse cursor’s coordinates on the map.)

 

2.3.2. basic自己试试1( Try Yourself 1)

在你自己的电脑屏幕上看看有没有找到上面提到的几个功能区。看看你能否说出它们的名称和功能。通过练习,你将变得更加熟悉这些元素,之后我们会使用它们。(Try to identify the four elements listed above on your own screen, without referring to the diagram above. See if you can identify their names and functions. You will become more familiar with these elements as you use them in the coming days.)

 

 

2.3.3. basic 自己试试 2( Try Yourself 2)

试着从操作界面上找到下面的工具,他们都是做什么用的?Try to find each of these tools on your screen. What is their purpose?

  1. mActionFileSaveAs

  2. mActionZoomToLayer

  3. mActionWhatsThis

  4. ../../../_images/toggle_render.png
  5. mActionMeasure

Note

如果这些工具在屏幕上不可见,尝试启用一些当前隐藏的工具栏。也请记住,如果屏幕上没有足够的空间,可以通过隐藏一些工具缩短工具栏。通过点击折叠的工具栏中的双右箭头按钮,可以看到隐藏的工具。通过将您的鼠标停靠在工具上一段时间,你可以看到该工具的名称和该工具的提示。(If any of these tools is not visible on the screen, try enabling some toolbars that are currently hidden. Also keep in mind that if there isn’t enough space on the screen, a toolbar may be shortened by hiding some of its tools. You can see the hidden tools by clicking on the double right arrow button in any such collapsed toolbar. You can see a tooltip with the name of any tool by holding your mouse over the tool for a while.)

检查结果:通过发表评论看看你自己是否掌握了

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  1. 另存为(Save as)
  2. 缩放到图层(Zoom to layer)
  3. 帮助(Help)
  4. 打开/关闭地图渲染(Rendering on/off)
  5. 测量距离(Measure line)


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2.3.4. 接下来学啥?(What’s Next?)

现在您已经知道了QGIS界面是如何操作的,你可以使用这些工具来改进你的地图了!这是下一课的主题。(Now you’ve seen how the QGIS interface works, you can use the tools available to you and start improving on your map! This is the topic of the next lesson.)

原作者:Linfiniti Consulting CC.   翻译:数据地图博客

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