底图首选项
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Outdated translations are marked like this.
此处有4个选项卡：通用设置、网格与捕捉、可视化设置，以及文本与标注。
通用设置
借助通用设置选项卡您可以调整特定的基本属性，如默认的工作平面, 构造组的名称与颜色, 克隆功能所用的前缀, 以及计算时所用的内部精度。
网格与捕捉
默认情况下，将开启"Always snap (disable snap mod)"选项（总是进行捕捉操作），这意味着您将无需按下修饰键来激活捕捉工具。如果此项为关闭状态，您将必须通过按下修饰键来激活捕捉功能。
您可以设置三种修饰键：
您还可以在此指定：每个栅格线间的空间、每个主线间的格数，以及工作平面中显示的总行数。
可视化设置
可视化设置选项卡使您可以指定新对象的默认线条颜色与宽度，以及捕捉工具符号的颜色。通过单击"Save current color and linewidth across sessions（跨上下文保存颜色与线宽信息）"多选框，令底图工具栏中的设置得以保存，并在下次开启FreeCAD时继续沿用此设置。
文本与标注
文本与标注选项卡使您可以设置底图文本、底图标注与Draft ShapeString工具的默认属性，这包括默认字体与字号，以及标注线条的样式与尺寸。这些属性也能够以单独文本对象的方式进行改变。
Draft 
- Basics: Coordinates, Constraining, Snapping (Near, Extension, Parallel, Grid, Endpoint, Midpoint, Perpendicular, Angle, Center, Ortho, Intersection, Special, Dimensions, Working plane)
- Drawing: Line, Wire, Circle, Arc, Ellipse, Polygon, Rectangle, Text, Dimension, BSpline, Point, ShapeString, Facebinder, Bezier Curve, Label
- Modifying: Move, Rotate, Offset, Trimex, Upgrade, Downgrade, Scale, Edit, Wire to BSpline, Add point, Delete point, Shape 2D View, Draft to Sketch, Array, Path Array, Point Array, Clone, Drawing, Mirror, Stretch
- Utilities: Set working plane, Finish line, Close line, Undo line, Toggle construction mode, Toggle continue mode, Apply style, Toggle display mode, Add to group, Select group contents, Toggle snap, Toggle grid, Show snap bar, Heal, Flip Dimension, VisGroup, Slope, AutoGroup, Set Working Plane Proxy, Add to Construction group
- Additional: Preferences, Import-Export Preferences (DXF/DWG, SVG, OCA, DAT); Draft API
User documentation 
- Installation: Linux, Windows, Mac; Getting started
- Basics: About FreeCAD, Workbenches, Preferences, Document structure, Interface Customization, Properties, Mouse Model; Tutorials
- Workbenches: Arch, Draft, FEM, Image, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Plot, Points, Raytracing, Reverse Engineering, Robot, Ship, Sketcher, Spreadsheet, Start, Surface workbench, TechDraw, Test Framework, Web
- Scripting: Introduction to Python, FreeCAD scripting tutorial, FreeCAD Scripting Basics, How to install macros, Gui Command, Units Modules: Builtin modules, Workbench creation, Installing more workbenches Meshes: Mesh Scripting, Mesh Module Parts: The Part Module, Topological data scripting, PythonOCC, Mesh to Part Coin scenegraph: The Coin/Inventor scenegraph, Pivy Qt interface: PySide, Using the FreeCAD GUI, Dialog creation Parametric objects: Scripted objects Other: Code snippets, Line drawing function, Embedding FreeCAD, FreeCAD vector math library, Power users hub, Python, Macros, FreeCAD Scripting Basics, Topological data scripting
