Part CoordinateSystem

Part

Part DatumPlane

Std Base

Description

The Part CoordinateSystem command creates a coordinate system object that can be attached to other objects. A coordinate system is one of several datum objects. A datum object is typically used to attach multiple other objects to. If the position or orientation of a datum object changes, all objects attached to it will follow.

A datum object can also provide a geometric reference for a feature or operation. Depending on its type it may for example be used as a direction vector, a rotation axis or a mirror plane.

Usage

1. Optionally activate the correct container, for example a PartDesign Body, a Std Part or an Assembly. If multiple containers are active, the datum object is added to the active container that was created first.
2. Optionally select the geometry the datum object should be attached to.
3. Press the Create coordinate system button.
4. The Attachment task panel opens.
5. If no geometry has been selected: optionally press the OK button to finish the command without attaching the datum object.
6. For further steps see Part EditAttachment. Continue from step 7 on that page if geometry has been preselected.

Notes

• A datum object can also be put into a container by dropping it on the container in the Tree view.
• The attachment of a datum object can be changed by editing its DataMap Mode property. See Part EditAttachment.
• The Part DatumPlane and Part DatumLine objects, and the planes and axes of the Part CoordinateSystem object are infinite.

Properties

See also: Property editor.

A Part CoordinateSystem object, formally a Part::LocalCoordinateSystem object, is derived from an App::LocalCoordinateSystem object. All its properties are inherited except those listed under Attachment.

Data

Attachment

The object has the same attachment properties as a Part Part2DObject.

Base

• Data (hidden)Origin Features (LinkList): The axes, planes and origin point controlled by the coordinate system.
• DataPlacement (Placement): See Part Feature.
• DataLabel (String): Idem.
• Data (hidden)Label2 (String): Idem.
• Data (hidden)Expression Engine (ExpressionEngine): Idem.
• Data (hidden)Visibility (Bool): Idem.
• DataGroup (LinkList):
• Data (hidden)_ Group Touched (Bool):

View

Display Options

• ViewDisplay Mode (Enumeration): See Part Feature.
• ViewShow In Tree (Bool): Idem.
• ViewVisibility (Bool): Idem.

Selection

• ViewOn Top When Selected (Enumeration): See Part Feature.
• ViewSelection Style (Enumeration): Idem.

Scripting

import FreeCAD as App

doc = App.newDocument()

body = doc.addObject("PartDesign::Body", "Body")
lcs = doc.addObject("Part::LocalCoordinateSystem", "LCS")
lcs.Visibility = True
body.addObjects([lcs])

orig = body.Origin
plane = next(f for f in orig.OriginFeatures if f.Role == "XZ_Plane")
lcs.AttachmentSupport = [(orig, (plane.Name + ".", ))]
lcs.AttachmentOffset = App.Placement(App.Vector(), App.Vector(1, 0, 0), 45)
lcs.MapMode = "FlatFace"

doc.recompute()

Part

Part DatumPlane

Std Base

Std Base

• File: New, Open, Open Recent, Close, Close All, Save, Save As, Save a Copy, Save All, Revert, Import, Export,Merge project, Document information, Print, Print preview, Export PDF, Exit

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• Edit: Undo, Redo, Cut, Copy, Paste, Duplicate selection, Refresh, Box selection, Box element selection, Select All, Delete, Send to Python Console, Placement, Transform, Alignment, Toggle Edit mode, Properties, Edit mode, Preferences

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• View:
  • Miscellaneous: Create new view, Orthographic view, Perspective view, Fullscreen, Bounding box, Toggle axis cross, Clipping plane, Persistent section cut, Texture mapping, Toggle navigation/Edit mode, Material, Appearance, Random color, Color per face, Toggle transparency, Workbench, Status bar
  • Standard views: Fit all, Fit selection, Align to selection, Isometric, Dimetric, Trimetric, Home, Front, Top, Right, Rear, Bottom, Left, Rotate Left, Rotate Right, Store working view, Recall working view
  • Freeze display: Save views, Load views, Freeze view, Clear views
  • Draw style: As is, Points, Wireframe, Hidden line, No shading, Shaded, Flat lines
  • Stereo: Stereo red/cyan, Stereo quad buffer, Stereo Interleaved Rows, Stereo Interleaved Columns, Stereo Off, Issue camera position
  • Zoom: Zoom In, Zoom Out, Box zoom
  • Document window: Docked, Undocked, Fullscreen
  • Visibility: Toggle visibility, Show selection, Hide selection, Select visible objects, Toggle all objects, Show all objects, Hide all objects, Toggle selectability
  • Toolbars: File, Edit, Clipboard, Workbench, Macro, View, Individual views, Structure, Help, Lock toolbars
  • Panels: Tree view, Property view, Model, Selection view, Python console, Report view, Tasks, DAG view
  • Dock window overlay: Toggle overlay for all, Toggle transparent for all, Toggle overlay, Toggle transparent, Bypass mouse events in docked overlay windows, Toggle left, Toggle right, Toggle top, Toggle bottom
  • Link navigation: Go to linked object, Go to the deepest linked object, Select all links
  • Tree view actions: Sync view, Sync selection, Sync placement, Pre-selection, Record selection, Single document, Multi document, Collapse/Expand, Initiate dragging, Go to selection, Selection back, Selection forward

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• Tools: Edit parameters, Save image, Load image, Scene inspector, Dependency graph, Export dependency graph, Document utility, Add text document, View turntable, Units converter, Customize, Addon manager, Measure

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• Macro: Macro recording, Macros, Recent macros, Execute macro, Attach to remote debugger, Debug macro, Stop debugging, Step over, Step into, Toggle breakpoint

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• Windows: Next, Previous, Tile, Cascade, Windows

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• Help: Help, FreeCAD Website, Donate, Users documentation, Python scripting documentation, Automatic Python modules documentation, FreeCAD Forum, FreeCAD FAQ, Report a bug, About FreeCAD, What's This, Start

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• Additional:
  • Miscellaneous: Create part, Create group, Create a variable set, Make link group, Select all instances, Toggle freeze
  • Create datums: Create coordinate system, Create datum plane, Create datum line, Create datum point
  • Link tools: Make link, Make sub-link, Replace with link, Unlink, Import links, Import all links
  • Expression actions: Copy selected, Copy active document, Copy all documents, Paste
  • Selection filter: Vertex selection, Edge selection, Face selection, All selection filters cleared

User documentation

• Getting started
• Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
• Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate

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• Help: Tutorials, Video tutorials
• Workbenches: Std Base, Assembly, BIM, CAM, Draft, FEM, Inspection, Material, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework

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• Addons: Addon Manager, External workbenches, Scripting and macros

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• Hubs: User hub, Power users hub, Developer hub