首选项编辑器

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Introduction

FreeCAD的首选项系统位于Edit menu → Preferences

FreeCAD中的功能被分为不同的模块,每个模块负责实现一种特定workbench的具体工作。 FreeCAD采用的是延迟加载方式,意即只有当需要使用特定组件时才会进行加载。您在FreeCAD的工具栏中选择工作台时可能会注意到这一点,因为在加载工作台及其所有组件时需要花费一点儿时间。在进行首选项设置时也是如此。

在没有加载任何模块时,您可以访问两个配置部分,分别用于应用通用设置(general)与显示设置(display)。当您使用特定的工作台时,便会在新选项卡中显示对应工作台的首选项设置,并在Import-Export新加部分显示该工作台所支持的文件格式。

点击首选项左下角的Reset按钮,即可将FreeCAD中的所有首选项设置还原为其默认值。

Some advanced preferences can only be changed in the Parameter editor. The Fine-tuning page lists some of them.

通用设置

本首选项部分包含6个选项卡:

常规

General选项卡中,您可以指定下列内容:

名称 描述
更改语言 选择FreeCAD的用户界面语言
最近文件列表大小 指定有多少最近用过的文件显示在recent files列表中
启用平面背景 如果选中此复选框,则FreeCAD的主窗口背景将默认由以下图片填充:Background.png
本选项只有在样式表:/No style sheet被选中时才会生效。
将图片加入到下列路径中的Gui/Images文件夹下即可改变贴图内容
%APPDATA%/FreeCAD (在Windows上),
$HOME/.FreeCAD (在Linux上) or
$HOME/Library/Preferences/FreeCAD (在MacOS上)。
将图片文件命名为background.png,再依次取消/选中本选项来查看效果。

This option only has an effect if no Style sheet is selected.

The image can be changed by adding the folders Gui/Images in the folder:

%APPDATA%/FreeCAD (on Windows),

$HOME/.FreeCAD (on Linux) or

$HOME/Library/Preferences/FreeCAD (on MacOS).

Place a file named background.png in the Images folder, and uncheck/check this option to see the changed file.

Style sheet Selection of a style sheet. Style sheets define how the user interface of FreeCAD looks. For technical details about the style sheets, see themes.
Size of toolbar icons Selection of the size for the toolbar icons
Tree view mode Customization how the tree view is shown in the panel (restart required). The options are:
  • Combo View: combine tree view and property view into one panel.
  • TreeView and PropertyView: split tree view and property view into separate panel.
  • Both: keep all three panels, and you can have two sets of tree view and property view.
Auto load module after start up Selection what workbench will be used directly after starting FreeCAD
Enable splash screen at start up If checked, a splash screen is shown when starting FreeCAD.
样式表: 选择样式表。样式表定义了FreeCAD用户界面的外观。
工具栏图标大小 选择工具栏图标的大小。
启动后自动加载模块 选择FreeCAD开启后将直接打开的工作台。
打开软件启动界面 如果选中此项, 则在FreeCAD开启时展示启动画面。
可通过向%APPDATA%/FreeCAD( %APPDATA%是用户在操作系统中为FreeCAD指定的应用文件夹)添加Gui/Images文件夹来修改启动画面。将作为启动画面的图像命名为splash_image.png并重启FreeCAD即可看到效果。
启用自动换行 利用此选项可实现在Python控制台中令超出一行中的文本自动换行。利用View → Panels → Python console菜单来开启Python控制台。

Preferences General Tab General zh-cn.png

文档

Document选项卡中,您可以指定以下内容:

名称 描述
启动时创建新文档 如果选中此选项,FreeCAD将在启动时创建一个新文档。
Document save compression level 指定FCStd文件的压缩级别。FCStd文件为ZIP压缩文件。因此,您可以将其后缀.FCStd改为.zip,并用ZIP归档程序来打开它们。
在文档上使用撤消/重做 如果选中此选项,所有文档的更改情况将被保存下来,因此即可实现undone/redone。
最大撤消/重做步数 指定可以记录多少次Undo/Redo操作。
在启动时运行自动恢复 如果存在恢复文件,则FreeCAD将在开启时自动运行此文件进行恢复。此法可对程序崩溃时的文件进行恢复。
每次都保存自动恢复信息 指定多久写一次恢复文件。
保存文件时同时保存缩略图到项目文件 如果选中此选项,在保存文档时,也将存储一份项目的缩略图。此缩略图将显示在启动工作台中的最近打开文件列表中。
将程序徽标添加到生成的缩略图 如果选中此选项,则会将FreeCAD程序的logo FreeCAD-logo.svg添加至缩略图中。此选项仅在开启保存文件时同时保存缩略图到项目文件选项后才会生效。
保存文档时要保留的最大备份文件数 如果选中此选项,在保存文档时也会保留备份文件。您可以指定保留备份文件的数量。这些文件中保存的是此前(previously)的文档版本。第一个备份文件的后缀为 .FCStd1, 第二个后缀为.FCStd2,并以此类推。
在一个文档中允许重复的对象标签 如果选中此选项,则不同的对象可以使用相同的标签/名称。例如,同一文档中的不同零件与features可用相同的名字。
作者姓名 创建的所有文档均采用此指定的作者名。对于匿名作者而言,作者名字的区域为空白内容。若开启了保存时的设置选项,则在保存文件时将Last modified by的内容设置为此作者名。可通过File → Project information菜单来查看该文本域。
公司 将创建的所有文档都指定为此公司名称。
默认许可证 为新文档所指定的默认许可证。对于预定义的许可证而言,许可证网址将自动做出对应的设置。而针对自定义许可证或特殊许可证来讲,可选择'Other(其他)'项。
许可证网址 指定URL来描述默认许可证中所选的许可证。

Preferences General Tab Document zh-cn.png

选择

On the Selection tab (introduced in version 0.19) you can specify the following:

Name Description
Auto switch to the 3D view containing the selected item Enables the Tree view SyncView mode
Auto expand tree item when the corresponding object is selected in 3D view Enables the Tree view SyncSelection mode
Preselect the object in 3D view when mouse over the tree item Enables the Tree view PreSelection mode
Record selection in tree view in order to go back/forward using navigation button Enables the Tree view RecordSelection mode
Add checkboxes for selection in document tree Each document tree item will get a checkbox. This is for example useful for selecting multiple items on a touchscreen.

Preferences General Tab Selection zh-cn.png

Cache

On the Cache tab (introduced in version 0.20) you can specify the following:

Name Description
Location ??
Check periodically at program start ??
Cache size limit ??
Current cache size ??

Preferences General Tab Cache.png

编辑器

编辑器首选项设置影响的是宏编辑器的行为。此编辑器可通过Macro → Macros... → Edit/Create菜单打开。
请注意: 这里的颜色和字体设置也会影响到Python控制台。此控制台可通过View → Panels → Python console菜单打开。

The color and font settings also affect the Python console. This console is shown using the menu View → Panels → Python console.

Editor选项卡中,您可以指定以下内容:

名称 描述
Display Items 选择代码类型。此处的颜色与字体设置将应用于所选的代码类型。可以从Preview框中预览效果。
字体族 指定应用于所选代码类型的字体系列(font family)。
大小 指定应用于所选代码类型的字体大小。
启用行号 若开启此项,将显示代码行号。
制表符长度 指定一个tab符占多少空格位置。若将此值设置为'6',则多次按下Tab键后,将根据当前光标位置,依次跳至其后的第7个字符、第13个字符或第19个字符等处。只有在选中保留制表符后,本选项才可生效。
缩进大小 指定在按下Tab键后将会插入多少个空格。只有在选中插入空格后,本选项才会生效。
保留制表符 如果选择本项,则按下Tab键将插入占空为制表符长度的tab符。
插入空格 如果选择本项,则按下Tab键将插入数量为缩进大小的空格符。

Preferences General Tab Editor zh-cn.png

输出窗口

The output preferences affect the behavior of the Report view. This panel is shown using the menu View → Panels → Report view.

On the Output tab you can specify the following:

名称 描述
Record normal messages If checked, normal messages will be recorded. They will be displayed in the Report view with the color set in 正常的消息.
记录日志 If checked, log messages will be recorded. They will be displayed in the Report view with the color set in 日志信息.
记录警告 If checked, warnings will be recorded. They will be displayed in the Report view with the color set in 警告.
记录错误 If checked, error messages will be recorded. They will be displayed in the Report view with the color set in 错误.
错误时显示报表视图 If checked, the Report view will be shown automatically when an error is recorded
在警告时显示报告视图 If checked, the Report view will be shown automatically when a warning is recorded
Show report view on normal message If checked, the Report view will be shown automatically when a normal message is recorded
在日志消息中显示报告视图 If checked, the Report view will be shown automatically when a log message is recorded
Include a timecode for each entry If checked, each message and warning will receive a timecode
正常的消息 Specification of the font color for normal messages
日志信息 Specification of the font color for log messages
警告 Specification of the font color for warning messages
错误 Specification of the font color for error messages
将 Python 内部输出重定向到报告视图 If checked, internal Python output will be redirected from the Python console to the Report view
将 Python 内部错误重定向到报告视图 If checked, internal Python error messages will be redirected from the Python console to the Report view

Preferences General Tab Output window zh-cn.png

On the Macro tab you can specify the following:

名称 描述
在本地环境中运行宏 If checked, variables defined by macros are created as local variables, otherwise as global Python variables
宏路径 Specification of the path for macro files
录制图形用户界面命令 If checked, recorded macros will also contain user interface commands
录制为注释 If checked, recorded macros will also contain user interface commands, but as comments. This is useful if you don't want to execute these commands when running the macro, but do want to see what has been done while recording.
在Python控制台显示脚本 If checked, the commands executed by macro scripts are shown in the Python console. This console is shown using the View → Panels → Python console menu option.
Size of recent macros list Controls the number of recent macros to display in the menu
快捷方式计数 Controls the number of recent macros that get dynamically assigned shortcuts
键盘编辑器 Controls which keyboard modifiers are used for the shortcuts, example Ctrl+Shift+ creates shortcuts in the form of Ctrl+Shift+1, Ctrl+Shift+2, etc.

Preferences General Tab Macro zh-cn.png

单位

On the Units tab you can specify the following:

名称 描述
Unit system Selection of the unit system to be used for all parts of FreeCAD
小数位数︰ The number of decimals that should be shown for numbers and dimensions
最小分数英寸: 最小分数英寸: that should be displayed. This setting is only available if the unit system Building US (ft-in/sqft/cuft) is used.

Preferences General Tab Units zh-cn.png

Display settings

This preferences section has three standard tabs: 3D View, Navigation and Colors. A fourth tab, Mesh view, is added if the Mesh Workbench has been loaded.

三维视图

On the 3D View tab you can specify the following:

Name Description
Show coordinate system in the corner If checked, the main coordinate system will always be shown at the lower right in opened files.

The Relative size introduced in version 0.20 defines the size of the representation as a percentage of the viewport size (the minimum of its height and width).

Show axis cross by default introduced in version 0.19 If checked, the axis cross will be shown by default at file opening or creation
Show counter of frames per second If checked, the time needed for the last operation and the resulting frame rate will always be shown at the lower left in opened files
Remember active workbench by tab introduced in version 0.19 If checked, the application will remember the active workbench for each tab in the Main view area independently. When switching to a tab this workbench will be restored automatically.
Use software OpenGL introduced in version 0.19 If checked, OpenGL will use the CPU instead of the GPU. This option is useful for troubleshooting graphics card and driver problems. Changing this option requires a restart of the application.
Use OpenGL VBO (Vertex Buffer Object) If checked, Vertex Buffer Objects (VBO) will be used. A VBO is an OpenGL feature that provides methods for uploading vertex data (position, normal vector, color, etc.) to the graphics card. VBOs offer substantial performance gains because the data resides in the graphics memory rather than the system memory and so it can be rendered directly by the GPU. For more background info see this webpage.
Render Cache introduced in version 0.19 "Render Cache" or "Render Acceleration" is explained in more detail in FreeCAD_assembly3 render-caching. There are 3 options:
  • Auto (default), let Coin3D decide where to cache.
  • Distributed, manually turn on cache for all view provider root nodes.
  • Centralized, manually turn off cache in all nodes of all view providers, and only cache at the scene graph root node. This offers the fastest rendering speed, but slower response to any scene changes.
Anti-Aliasing Selection if and what kind of multisample anti-aliasing is used
Transparent objects introduced in version 0.19 Render type of transparent objects. The types are:
  • One pass (default), rendering is done in one pass. For non-solid objects like faces or meshes this can lead to artifacts. This image shows such an artifact (black triangle) and that the type Backface pass avoids this.
  • Backface pass, has only an effect for non-solid objects. They are then rendered in two passes: Back-facing polygons are rendered in the first pass and the front-facing in the second pass.
Marker size Selection of the size of vertices (points) in the Sketcher workbench. The clickable area of points can be additionally enlarged by increasing the Pick radius.
Pick radius (px) Sets the area for picking elements in the 3D view. Larger value makes it easier to pick things, but can make some small features impossible to select.
Eye to eye distance for stereo modes Specification of the eye-to-eye distance used for stereo projections. The specified value is a factor that will be multiplied with the bounding box size of the 3D object that is currently displayed.
Backlight color If checked, backlight is enabled with the defined color. Backlight is used for rendering back sides of faces. Usually, you don't see them in solids, unless you slice one with a clipping plane, or if the faces aren't oriented correctly. It is only active for objects whose Lighting property (on the View tab) is set to One side. If disabled, back sides of faces of objects in One side lighting mode will be black.

The related Intensity setting specifies the intensity of the backlight.

Camera type Selection of the camera projection type.

Preferences Display Tab 3D View.png

导航栏

On the Navigation tab you can specify the following:

Name Description
Navigation cube If checked, the Navigation cube will always be shown.

Steps by turn defines the number of steps required for a full rotation when using the Navigation cube rotation arrows.

Corner defines where the Navigation cube is displayed on the screen when creating or opening a document.

If Rotate to nearest is checked, the 3D view is rotated to the nearest most logical state when a cube face is clicked. When it is off, clicking to a cube face will and up always to the same position, no matter in what cube state you were when you clicked the face. introduced in version 0.20

Cube size defines the size of the cube. introduced in version 0.20

3D Navigation Selection of a navigation settings set. To see what each set defines, select it and then press the Mouse... button.
Orbit style Selection of the rotation orbit style. When viewing a part in the x-y plane and being in the rotation mode of the 3D navigation, the difference is: If Trackball is selected, moving the mouse horizontally will rotate the part around the y-axis, if Turntable is selected the part will be rotated around the z-axis.
Rotation mode Defines the rotation center. Select Window center, Drag at cursor, or Object center.
Default camera orientation Selection of the camera orientation for new documents. This setting is also used by the Std ViewHome command.
New document scale Affects the initial camera zoom level for new documents. The value you set is the diameter of a sphere that fits in 3D view. Default is 100 mm. It also sets the initial size of origin features (base planes in new PartDesign Bodies).
Enable animation If checked, rotations can be animated. If for example the 3D Navigation set CAD is used and the mouse is moved while the scroll wheel and the right mouse button are pressed, parts are rotated. If one keeps the mouse moving while releasing e.g. the right mouse button, the rotation will continue as animation. To end the animation left-click with the mouse.
Zoom at cursor If checked, zoom operations will be performed at the position of the mouse pointer. Otherwise zoom operations will be performed at the center of the current view. The Zoom step defines how much will be zoomed. A zoom step of 1 means a factor of 7.5 for every zoom step.
Invert zoom If checked, the direction of zoom operations will be inverted
Disable touchscreen tilt gesture If checked, the tilting gesture will be disabled for pinch-zooming (two-finger zooming). This only affects the 3D Navigation set Gesture.

Preferences Display Tab Navigation.png

颜色

On the Colors tab you can specify the following:

Name Description
Enable preselection highlighting If checked, preselection is turned on and the specified color will be used for it. Preselection means that for example edges in parts will be highlighted while hovering over them with the mouse to indicate they can be selected.
Enable selection highlighting If checked, selection highlighting is turned on and the specified color will be used for it
Simple color If selected, the background of the 3D view will have the selected color
Color gradient If selected, the background of the 3D view will have a vertical color gradient. The first color is the color at the top of the 3D view, the second the color at the bottom.
Middle color Is only enabled if Color gradient is selected. If checked, the color gradient will get the selected color as the middle color.
Object being edited Selection of the background color for objects in the tree view that are currently edited
Active container Selection of the background color for active containers in the tree view. For example an active PartDesign Body will get the selected background color.

Preferences Display Tab Colors.png

网格视图

This tab is only available if the Mesh Workbench has been loaded.

On the Mesh view tab you can specify the following:

Name Description
Default mesh color Selection of the default shape color
Default line color Selection of the default line color
Mesh transparency Specification of the default mesh transparency
Line transparency Specification of the default line transparency
Two-side rendering If checked, the color of the interior side of faces will be the same as the exterior side. If not checked either the backlight color, if enabled, or black will be used instead.
Show bounding-box for highlighted or selected meshes If checked, a yellow bounding box will be displayed for highlighted or selected meshes
Define normal per vertex If checked, Phong shading is used, otherwise flat shading. Shading defines the appearance of surfaces. With flat shading the surface normals are not defined per vertex. This leads to an unrealistic appearance for curved surfaces. While Phong shading leads to a more realistic, smoother appearance.
Crease angle The crease angle is a threshold angle between two faces. It can only be set if the option Define normal per vertex is used.
If face angle ≥ crease angle, facet shading is used
If face angle < crease angle, smooth shading is used

Preferences Display Tab Mesh view.png

Workbenches

This preferences section has a single tab: Available Workbenches.

Available Workbenches

To preserve resources, FreeCAD does not automatically load all available workbenches. And only if a workbench has been loaded will its preferences, if any, appear in the Preferences editor.

In FreeCAD version 0.19 the tab has a different label: Unloaded Workbenches, and the tab displays a list of installed workbenches that have not yet been loaded. To load one or more workbenches select them in the list and then press the Load Selected button.

In FreeCAD version 0.20 the Available Workbenches tab displays a list of all installed workbenches. To load a workbench press its Load now button. If you check a workbench's Autoload checkbox it will autoload when FreeCAD starts up. Loading more workbenches will make the startup slower, but switching between workbenches that have already been loaded is faster.

If a newly loaded workbench has dedicated preference they will appear in a new section in the Preferences editor. Some workbenches add support for additional import and export formats. If there are any related preferences they will appear on one or more new tabs in the Import-Export settings section of the Preferences editor.

For a list of workbench preferences see Workbench preferences

Preferences Workbenches Tab Available Workbenches.png

Import-Export settings

The Import-Export settings affect how files are imported and exported. They are described on the Import Export Preferences page.

工作台首选项

下列为常用工作台的首选项。部分工作台并没有对应的首选项。其他可选工作台可能也未列入其中。

This section is incomplete and requires mentioning the preference pages of each core workbench

Preferences for the more common workbenches are linked below. Some workbenches have no preferences. Other optional workbenches may not be listed. These links are also listed in Category:Preferences

External workbenches

This section is incomplete and requires mentioning the preference pages of each External workbench

Scripting

See also: FreeCAD Scripting Basics.

For a scripting example see Std DlgParameter.

Related