Feature
Jump to navigation
Jump to search
Introduzione
In FreeCAD the word "Feature" is normally used to refer to a PartDesign Feature object (PartDesign::Feature
class) that is defined by the PartDesign Workbench. This is an operation or modelling step performed to create or modify a solid Shape following the feature editing paradigm.
See PartDesign Feature for more information about this type of object.
Utilizzo
- Switch to the
PartDesign Workbench.
- Press
PartDesign Body.
- Press
PartDesign NewSketch to create a new Sketch.
- Create a closed wire, and then use
PartDesign Pad to extrude the sketch, and create an initial solid. This initial solid is the initial Feature.
- Add more sketches and pads, and use other tools of the PartDesign Workbench to modify and transform the initial solid. Each of these steps correspond to Features of the Body.
- Alternatively, add primitive objects, like
PartDesign Additive box and
PartDesign Subtractive cylinder. Any number of additive and subtractive steps are Features that are used to create a final volume.
Note
In the general sense, a "Feature" can be any modelling step used to create a final Shape, with any tool of any workbench.
- For example, in the Part Workbench, in the constructive solid geometry workflow, a "Feature" could be any boolean operation, like
Part Fuse,
Part Cut, or
Part Common.
In a more specific sense, a "Feature" is a modelling step used inside a PartDesign Body.
- For example,
PartDesign Additive cylinder,
PartDesign Additive loft,
PartDesign Pocket,
PartDesign Subtractive cone, etc., are all "Features".
Documentazione di PartDesign
- Structure tools: Part, Group
- Helper tools: Create body, Create sketch, Edit sketch, Map sketch to face
- Modeling tools
- Datum tools: Create a datum point, Create a datum line, Create a datum plane, Create a local coordinate system, Create a shape binder, Create a clone
- Additive tools: Pad, Revolution, Additive loft, Additive pipe, Additive box, Additive cone, Additive cylinder, Additive ellipsoid, Additive prism, Additive sphere, Additive torus, Additive wedge
- Subtractive tools: Pocket, Hole, Groove, Subtractive loft, Subtractive pipe, Subtractive box, Subtractive cone, Subtractive cylinder, Subtractive ellipsoid, Subtractive prism, Subtractive sphere, Subtractive torus, Subtractive wedge
- Transformation tools: Mirrored, Linear Pattern, Polar Pattern, Create MultiTransform
- Dress-up tools: Fillet, Chamfer, Draft, Thickness
- Boolean: Boolean operation
- Extras: Migrate, Shaft design wizard, Involute gear
- Contextual Menu tools: Set tip, Move object to other body, Move object after other object
Documentazione di Part
- Primitives: Box, Cone, Cylinder, Sphere, Torus, CreatePrimitives, Shapebuilder
- Modifying objects: Booleans, Union, Common, Cut, Join features, Connect, Embed, Cutout
- Splitting tools: Boolean fragments, Slice a part, Slice, XOR, Part Defeaturing
- Compound: Make compound, Explode Compound, Compound Filter; Extrude, Fillet, Revolve, Section, Cross sections, Chamfer, Mirror, Ruled Surface, Sweep, Loft
- Offset tools: 3D Offset, 2D Offset, Thickness, Projection on surface
Oggetti del documento
- Cuore: App DocumentObject
- Base: App FeaturePython, App GeoFeature, Part Feature, Mesh Feature, Fem FemMeshObject
- Forme interne: Part TopoShape, Mesh MeshObject, Fem FemMesh
- Struttura: App DocumentObjectGroup (Std Group), App Part (Std Part), App Link
- Derivate: Part Part2DObject, Sketcher SketchObject, PartDesign Body, PartDesign Feature
Documentazione utente

- Installazione: Windows, Linux, Mac; Getting started
- Base: About FreeCAD, Workbenches, Preferences, Document structure, Interface Customization, Properties, Mouse Model; Tutorials
- Ambienti: Menu di base; 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