Part Module/sv: Difference between revisions

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{{Docnav
{{Docnav
|[[OpenSCAD Module|OpenSCAD Module]]
|[[OpenSCAD_Workbench|OpenSCAD Workbench]]
|[[PartDesign Workbench|PartDesign Workbench]]
|[[PartDesign_Workbench|PartDesign Workbench]]
|IconL=Workbench_OpenSCAD.svg
|IconL=Workbench_OpenSCAD.svg
|IconR=Workbench_PartDesign.svg
|IconR=Workbench_PartDesign.svg
}}
}}


[[Image:Workbench_Part.svg|240px|center]]
[[Image:Workbench_Part.svg|thumb|128px|Part workbench icon]]

{{Caption|align=center|The FreeCAD Part Workbench Icon}}
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== Introduction ==


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FreeCAD's CAD kapabilitet är baserad på [http://en.wikipedia.org/wiki/Open_CASCADE OpenCasCade] kärnan. Del modulen tillåter FreeCAD att komma åt och använda OpenCasCade objekt och funktioner. OpenCascade är en professionell CAD kärna, som erbjuder avancerad 3D geometrimanipulation och objekt. Del objekten, till skillnad från [[Mesh Module/sv|Nätmodul]] objekten, är mycket komplexare, och tillåter därför mycket mer avancerade operationer, som koherenta booleska operationer, ändringshistorik och parametriskt beteende.
FreeCAD's CAD kapabilitet är baserad på [http://en.wikipedia.org/wiki/Open_CASCADE OpenCasCade] kärnan. Del modulen tillåter FreeCAD att komma åt och använda OpenCasCade objekt och funktioner. OpenCascade är en professionell CAD kärna, som erbjuder avancerad 3D geometrimanipulation och objekt. Del objekten, till skillnad från [[Mesh Workbench/sv|Nätmodul]] objekten, är mycket komplexare, och tillåter därför mycket mer avancerade operationer, som koherenta booleska operationer, ändringshistorik och parametriskt beteende.
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A more detailed discussion of Part workbench versus Part Design workbench can be found here: [[Part_and_PartDesign|Part and Part Design]].
The objects created with the Part Workbench are relatively simple; they are intended to be used with boolean operations (unions and cuts) in order to build more complex shapes. '''This modeling paradigm is known as the [[constructive solid geometry]] (CSG) workflow, and it was the traditional methodology used in early CAD systems.''' On the other hand, the [[PartDesign Workbench|PartDesign Workbench]] provides a more modern workflow to constructing shapes: it uses a parametrically defined sketch, that is extruded to form a basic solid body, which is then modified by parametric transformations ([[feature editing|feature editing]]), until the final object is obtained.


The objects created with the Part Workbench are relatively simple; they are intended to be used with boolean operations (unions and cuts) in order to build more complex shapes. '''This modeling paradigm is known as the [[Constructive_solid_geometry|constructive solid geometry]] (CSG) workflow, and it was the traditional methodology used in early CAD systems.''' On the other hand, the [[PartDesign_Workbench|PartDesign Workbench]] provides a more modern workflow to constructing shapes: it uses a parametrically defined sketch, that is extruded to form a basic solid body, which is then modified by parametric transformations ([[feature_editing|feature editing]]), until the final object is obtained.
Part objects are more complex than mesh objects created with the [[Mesh Workbench|Mesh Workbench]], as they permit more advanced operations like coherent boolean operations, modifications history, and parametric behaviour.


Part objects are more complex than mesh objects created with the [[Mesh_Workbench|Mesh Workbench]], as they permit more advanced operations like coherent boolean operations, modifications history, and parametric behaviour.
{{TOCright}}
[[Image:Part example.jpg]]


[[Image:Part_Workbench_relationships.svg|600px]]
[[Image:Part_Workbench_relationships.svg|600px]]


{{Caption|The Part Workbench is the basic layer that exposes the OCCT drawing functions to all workbenches in FreeCAD}}
{{Caption|The Part Workbench is the basic layer that exposes the OCCT drawing functions to all workbenches in FreeCAD.}}


<span id="Tools"></span>
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=== Verktygen ===
=== Verktygen ===
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<span id="Primitives"></span>
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===Primitiver===
===Primitiver===
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Detta är verktyg för att skapa primitivobjekt.
Detta är verktyg för att skapa primitivobjekt.
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* [[Image:Part_Cylinder.svg|32px]] [[Part_Cylinder|Cylinder]]: Creates a cylinder.

* [[Image:Part_Sphere.svg|32px]] [[Part_Sphere|Sphere]]: Creates a sphere.

* [[Image:Part_Cone.svg|32px]] [[Part_Cone|Cone]]: Creates a cone.

* [[Image:Part_Torus.svg|32px]] [[Part_Torus|Torus]]: Creates a torus.

* [[File:Part_Tube.svg|32px]] [[Part_Tube|Tube]]: Creates a tube.

* [[Image:Part_Primitives.svg|32px]] [[Part_Primitives|Create primitives...]]: A tool to create one of the following primitives:
**[[Image:Part_Plane.svg|32px]] [[Part_Plane|Plane]]: Creates a plane.
**[[Image:Tree_Part_Box_Parametric.svg|32px]] [[Part_Box|Box]]: Creates a box. This object can also be created with the [[Image:Part_Box.svg|32px]] [[Part_Box|Box]] tool.
**[[Image:Tree_Part_Cylinder_Parametric.svg|32px]] [[Part_Cylinder|Cylinder]]: Creates a cylinder. This object can also be created with the [[Image:Part_Cylinder.svg|32px]] [[Part_Cylinder|Cylinder]] tool.
**[[Image:Tree_Part_Cone_Parametric.svg|32px]] [[Part_Cone|Cone]]: Creates a cone. This object can also be created with the [[Image:Part_Cone.svg|32px]] [[Part_Cone|Cone]] tool.
**[[Image:Tree_Part_Sphere_Parametric.svg|32px]] [[Part_Sphere|Sphere]]: Creates a sphere. This object can also be created with the [[Image:Part_Sphere.svg|32px]] [[Part_Sphere|Sphere]] tool.
**[[Image:Part_Ellipsoid.svg|32px]] [[Part_Ellipsoid|Ellipsoid]]: Creates a ellipsoid.
**[[Image:Tree_Part_Torus_Parametric.svg|32px]] [[Part_Torus|Torus]]: Creates a torus. This object can also be created with the [[Image:Part_Torus.svg|32px]] [[Part_Torus|Torus]] tool.
**[[Image:Part_Prism.svg|32px]] [[Part_Prism|Prism]]: Creates a prism.
**[[Image:Part_Wedge.svg|32px]] [[Part_Wedge|Wedge]]: Creates a wedge.
**[[Image:Part_Helix.svg|32px]] [[Part_Helix|Helix]]: Creates a helix.
**[[Image:Part_Spiral.svg|32px]] [[Part_Spiral|Spiral]]: Creates a spiral.
**[[Image:Part_Circle.svg|32px]] [[Part_Circle|Circle]]: Creates a circular arc.
**[[Image:Part_Ellipse.svg|32px]] [[Part_Ellipse|Ellipse]]: Creates an elliptical arc.
**[[Image:Part_Point.svg|32px]] [[Part_Point|Point]]: Creates a point.
**[[Image:Part_Line.svg|32px]] [[Part_Line|Line]]: Creates a line.
**[[Image:Part_RegularPolygon.svg|32px]] [[Part_RegularPolygon|Regular polygon]]: Creates a regular polygon.

* [[Image:Part_Builder.svg|32px]] [[Part_Builder|Shape builder...]]: Creates shapes from various primitives.

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===Förändra objekt===
===Förändra objekt===
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Detta är verktyg för att förändra existerande objekt. De kommer att låta dig välja vilka objekt som du vill förändra.
Detta är verktyg för att förändra existerande objekt. De kommer att låta dig välja vilka objekt som du vill förändra.
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* [[Image:Part_Revolve.svg|32px]] [[Part_Revolve|Revolve]]: Creates a solid by revolving an object (not a solid) around an axis.
* [[Image:Part_CompOffsetTools.png|48px]] [[Part_CompOffsetTools|Offset tools]]:
** [[Image:Part_Offset.svg|32px]] [[Part_Offset|3D Offset]]: Constructs a parallel shape at a certain distance from original.
** [[Image:Part_Offset2D.svg|32px]] [[Part_Offset2D|2D Offset]]: Constructs a parallel wire at certain distance from original, or enlarges/shrinks a planar face. {{Version|0.17}}


* [[Image:Part_Thickness.svg|32px]] [[Part_Thickness|Thickness]]: Hollows out a solid, leaving openings next to select faces.
* [[Image:Part_Mirror.svg|32px]] [[Part_Mirror|Mirror]]: Mirrors the selected object across a mirror plane.


* [[Image:Part_Scale.svg|32px]] [[Part_Scale|Scale]]: Scales one or more shapes. {{Version|1.0}}
* [[Image:Part_ProjectionOnSurface.png|32px]] [[Part_ProjectionOnSurface|Projection on surface]]: Project a logo, text or any face,wire,edge to a surface. With the projection part it is possible to create a solid or wire. {{Version|0.19}}


* [[Image:Part_Fillet.svg|32px]] [[Part_Fillet|Fillet]]: Fillets (rounds) edges of an object.
* [[Image:Part_CompCompoundTools.png|48px]] [[Part_CompCompoundTools|Compound Tools]]:
** [[Image:Part MakeCompound.png|32px]] [[Part MakeCompound|Make compound]]: Creates a compound from the selected objects.
** [[Image:Part_ExplodeCompound.svg|32px]] [[Part_ExplodeCompound|Explode Compound]]: Tool to split up compounds of shapes
** [[Image:Part Compound‏‎Filter.svg|32px]] [[Part Compound‏‎Filter|Compound Filter]]: The CompoundFilter can be used to extract the individual pieces.


* [[Image:Part_Chamfer.svg|32px]] [[Part_Chamfer|Chamfer]]: Chamfers edges of an object.
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* [[Image:Part_Booleans.png|32px]] [[Part_Booleans/sv|Boolesk]]: Utför booleska operationer på objekt
* [[Image:Part_Union.png|32px]] [[Part_Union/sv|Förena]]: Förenar två objekt
* [[Image:Part_Common.png|32px]] [[Part_Common/sv|Gemensamt]]: Tar bort den gemensamma (skärningen) delen mellan två objekt
* [[Image:Part_Cut.png|32px]] [[Part_Cut/sv|Klipp]]: Klipper (tar bort) ett objekt från ett annat
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* [[File:Part_MakeFace.svg|32px]] [[Part_MakeFace|Make face from wires]]: Makes a face from a set of wires (contours).
* [[Image:Part_CompJoinFeatures.png|48px]] [[Part CompJoinFeatures|Join features]]: smart booleans for walled objects (e.g., pipes) {{Version|0.16}}
** [[Image:Part JoinConnect.png|32px]] [[Part_JoinConnect|Connect]]: Connects interiors of objects {{Version|0.16}}
** [[Image:Part JoinEmbed.png|32px]] [[Part_JoinEmbed|Embed]]: Embeds a walled object into another walled object {{Version|0.16}}
** [[Image:Part JoinCutout.png|32px]] [[Part_JoinCutout|Cutout]]: Creates a cutout in a wall of an object for another walled object {{Version|0.16}}


* [[Image:Part_RuledSurface.svg|32px]] [[Part_RuledSurface|Ruled Surface]]: Creates a ruled surface.
* [[Image:Part_CompSplittingTools.png|48px]] [[Part CompSplittingTools|Splitting tools]]: {{Version|0.17}}
** [[Image:Part_BooleanFragments.svg|32px]] [[Part_BooleanFragments|Boolean fragments]]: makes all the pieces that can be obtained by Boolean operations between objects {{Version|0.17}}
** [[Image:Part SliceApart.svg|32px]] [[Part_SliceApart|Slice a part]]: tool to split shapes by intersection with other shapes
** [[Image:Part_Slice.svg|32px]] [[Part_Slice|Slice]]: Splits an object into pieces by intersections with another object {{Version|0.17}}
** [[Image:Part_XOR.svg|32px]] [[Part_XOR|XOR]]: removes space shared by even number of objects (symmetric version of [[Part_Cut|Cut]]) {{Version|0.17}}


* [[Image:Part_Loft.svg|32px]] [[Part_Loft|Loft]]: Lofts from one profile to another.
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* [[Image:Part Defeaturing.svg|32px]] [[Part_Defeaturing/sv|Defeaturing]]: (v0.18)
* [[Image:Part_Section.png|32px]] [[Part_Section/sv|Sektionera]]: Skapar en sektion genom att skära ett objekt med ett sektioneringsplan
* [[Image:Part_SectionCross.png|32px]] [[Part_SectionCross/sv|Cross sections...]]:
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* [[Image:Part_Sweep.svg|32px]] [[Part_Sweep|Sweep]]: Sweeps one or more profiles along a path.
=== Measure ===


* [[Image:Part_Section.svg|32px]] [[Part_Section|Section]]: Creates a section by intersecting an object with a section plane.
[[File:Std Measure Menu.png|64px]] [[Std Measure Menu|Measure]]: Allows linear and angular measurement between points, edges, and faces.


* [[Image:Part_Measure_Linear.svg|32px]] [[Part_Measure_Linear|Measure Linear]] allows you to make linear measurements.
* [[Image:Part_CrossSections.svg|32px]] [[Part_CrossSections|Cross sections...]]: Creates one or more cross-sections through an object.
* [[Image:Part_Measure_Angular.svg|32px]] [[Part_Measure_Angular|Measure Angular]] allows you to make angular measurements.
* [[Image:Part_Measure_Refresh.svg|32px]] [[Part_Measure_Refresh|Measure Refresh]] updates the measurements on screen.
* [[Image:Part_Measure_Clear_All.svg|32px]] [[Part_Measure_Clear_All|Clear All]] Clears all measurements.
* [[Image:Part_Measure_Toggle_All.svg|32px]] [[Part_Measure_Toggle_All|Toggle All]] shows or hides all measurements.
* [[Image:Part_Measure_Toggle_3d.svg|32px]] [[Part_Measure_Toggle_3d|Toggle 3D]] shows or hides 3D measurements.
* [[Image:Part_Measure_Toggle_Delta.svg|32px]] [[Part_Measure_Toggle_Delta|Toggle Delta]] shows or hides delta measurements.


* [[Image:Part_CompOffsetTools.png|48px]] [[Part_CompOffsetTools|Offset tools]]:
===Other tools===
** [[Image:Part_Offset.svg|32px]] [[Part_Offset|3D Offset]]: Constructs a parallel shape at a certain distance from an original.
** [[Image:Part_Offset2D.svg|32px]] [[Part_Offset2D|2D Offset]]: Constructs a parallel wire at certain distance from an original, or enlarges/shrinks a planar face.


* [[Image:Part_Import.svg|32px]] [[Part Import|Import]]: This tool allows you to add a file *.IGES, *.STEP, *.BREP to the current document.
* [[Image:Part_Thickness.svg|32px]] [[Part_Thickness|Thickness]]: Hollows out a solid.
* [[Image:Part_Export.svg|32px]] [[Part Export|Export]]: This tool allows you to export a part object in a *.IGES, *.STEP, *.BREP file.
* [[File:Part_BoxSelection.svg|32px]] [[Part_BoxSelection|BoxSelection]]: add to the selection the faces of the shapes that are touches by the rectangular selection. {{Version|0.19}}
* [[Image:Part_ShapeFromMesh.svg|32px]] [[Part ShapeFromMesh|Shape from Mesh]]: Creates a shape object from a mesh object.
* [[File:Part_PointsFromMesh.svg|32px]] [[Part PointsFromMesh|Points from mesh]]: creates a shape object made of points from the mesh. {{Version|0.19}}
* [[Part_ConvertToSolid|Convert to solid]]: Converts a shape object to a solid object.
* [[Part_ReverseShapes|Reverse shapes]]: Flips the normals of all faces of the selected object.


* [[File:Part_ProjectionOnSurface.svg|32px]] [[Part_ProjectionOnSurface|Projection on surface]]: Projects a logo, text or any face, wire or edge onto a surface.
* Create a copy:
** [[Image:Part_SimpleCopy‎.svg|32px]] [[Part_SimpleCopy|Create simple copy]]: Creates a simple copy of the selected object.
** [[File:Part_TransformedCopy.svg|32px]] [[Part_TransformedCopy|Create transformed copy]]: creates a transformed copy of the selected object. {{Version|0.19}}
** [[File:Part_ElementCopy.svg|32px]] [[Part_ElementCopy|Create shape element copy]]: creates a copy from an element (vertex, edge, face) of the selected object. {{Version|0.19}}
** [[Image:Part_RefineShape.svg|32px]] [[Part_RefineShape|Refine shape]]: Cleans faces by removing unnecessary lines.


* [[Image:Part_CheckGeometry.svg|32px]] [[Part CheckGeometry|Check geometry]]: Checks the geometry of selected objects for errors.
* [[Image:Part_EditAttachment.svg|32px]] [[Part_EditAttachment|Attachment]]: Attaches an object to another object.


== Preferences ==
=== Boolean ===


These tools perform boolean operations.
* [[Image:Preferences-import-export.svg|32px]] [[Import_Export_Preference|Preference ...]] Import Export


* [[Image:Part_CompCompoundTools.png|48px]] [[Part_CompCompoundTools|Compound Tools]]:
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** [[Image:Part_Compound.svg|32px]] [[Part_Compound|Make compound]]: Creates a compound from the selected objects.
=== Förklaring av koncepten ===
** [[Image:Part_ExplodeCompound.svg|32px]] [[Part_ExplodeCompound|Explode Compound]]: Splits up compounds.
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** [[Image:Part Compound‏‎Filter.svg|32px]] [[Part_Compound‏‎Filter|Compound Filter]]: Extracts the individual pieces from compounds.


* [[Image:Part_Boolean.svg|32px]] [[Part_Boolean|Boolean]]: Utför booleska operationer på objekt.
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I OpenCasCade terminologi, så skiljer vi mellan geometriska primitiver och (topologiska) former. En geometrisk primitiv kan vara en punkt, en linje, en cirkel, ett plan, etc. eller även mer komplexa typer som en B-Spline kurva eller yta. En form kan vara ett hörn, en kant, en tråd, en yta, en solid eller en sammansättning av andra former. De geometriska primitiverna är inte gjorda för att direkt visas i 3D scenen, utan snarare för att användas som bygggeometri för former. Till exempel så kan en kant skapas av en linje eller av en cirkeldel.
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* [[Image:Part_Cut.svg|32px]] [[Part_Cut|Cut]]: Cuts (subtracts) one object from another.
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Vi skulle kunna säga att geometriprimitiver är "formlösa" byggblock, och former är den riktiga spatiala geometrin som är byggd på dem.
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* [[Image:Part_Fuse.svg|32px]] [[Part_Fuse|Fuse]]: Fuses (unions) two or more objects.
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För att få en komplett lista på dem, se [http://www.opencascade.org/org/doc/ OCC documentation] och leta efter Geom_Geometry och TopoDS_Shape. Där kan du också läsa mer om skillnaderna mellan geometriska objekt och former. Notera att OCC dokumentationen inte är tillgänglig online (du måste ladda ned ett arkiv) och är mest riktad till programmerare, inte till slutanvändare. Men förhoppningsvis hittar du tillräckligt med information här för att kunna börja.
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* [[Image:Part_Common.svg|32px]] [[Part_Common|Common]]: Extracts the common (intersection) part of two objects.
De geometriska typeerna kan uppdelas i två huvudgrupper: kurvor och ytor. Från kurvor (linje, cirkel, ...) så kan du bygga en kant, från ytor (plan, cylinder, ...) så kan en yta byggas. Den geometriska primitiven linje är till exempel obegränsad, d.v.s. den är definierad av en basvektor och en riktningsvektor emedan dess formrepresentation måste vara något som begränsas av en start och en slutpunkt. Och en låda -- en solid -- kan skapas av sex begränsade plan.


* [[Image:Part_CompJoinFeatures.png|48px]] [[Part CompJoinFeatures|Join features]]:
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** [[Image:Part_JoinConnect.svg|32px]] [[Part_JoinConnect|Connect]]: Connects interiors of walled objects.
Från en kant eller yta så kan du också gå tillbaka till dess motsvarande geometriska primitiv.
** [[Image:Part_JoinEmbed.svg|32px]] [[Part_JoinEmbed|Embed]]: Embeds a walled object into another walled object.
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** [[Image:Part_JoinCutout.svg|32px]] [[Part_JoinCutout|Cutout]]: Creates a cutout in a wall of an object for another walled object.


* [[Image:Part_CompSplittingTools.png|48px]] [[Part CompSplittingTools|Splitting tools]]:
Så, av former så kan du bygga mycket komplexa delar eller, åt andra hållet, plocka ut alla delformer som en mer komplex form är gjord av.
** [[Image:Part_BooleanFragments.svg|32px]] [[Part_BooleanFragments|Boolean fragments]]: Creates all pieces obtained from Boolean operations.
** [[Image:Part SliceApart.svg|32px]] [[Part_SliceApart|Slice apart]]: Slices and splits an object by intersecting it with other objects.
** [[Image:Part_Slice.svg|32px]] [[Part_Slice|Slice]]: Slices an object by intersecting it with other objects.
** [[Image:Part_XOR.svg|32px]] [[Part_XOR|XOR]]: Removes space shared by an even number of objects.


=== Measure ===
[[File:Part_TopoShape_relationships.svg|600px]]


* [[Image:Part_Measure_Linear.svg|32px]] [[Part_Measure_Linear|Measure Linear]]: Creates a linear measurement.
{{Caption|The "Part::TopoShape" is the geometrical object that is seen on screen. Essentially all workbenches use these TopoShapes internally to build and display edges, faces, and solids.}}


* [[Image:Part_Measure_Angular.svg|32px]] [[Part_Measure_Angular|Measure Angular]]: Creates an angular measurement.
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=== Skript ===
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* [[Image:Part_Measure_Refresh.svg|32px]] [[Part_Measure_Refresh|Measure Refresh]]: Updates all measurements.
{{Emphasis|See also:}} [[Part scripting|Part scripting]]


* [[Image:Part_Measure_Clear_All.svg|32px]] [[Part_Measure_Clear_All|Clear All]]: Clears all measurements.
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Den huvudsakliga data strukturen som används i Del modulen är [http://en.wikipedia.org/wiki/Boundary_representation BRep] datatypen från OpenCascade.


* [[Image:Part_Measure_Toggle_All.svg|32px]] [[Part_Measure_Toggle_All|Toggle All]]: Shows or hides all measurements.
Nästan alla Del modulens innehåll och objekttyper finns nu tillgängliga för python skript. Detta inkluderar geometriska primitiver, som Linje och Cirkel (eller Cirkelbåge), och alla topologiska former, som Hörn, Kanter, Trådar, Ytor, Solider och Sammansättningar. För vart och ett av dessa objekt, så finns flera metoder att skapa dem, och för en del av dem, speciellt de topologiska formerna, så finns avancerade operationer som booleska förening/skillnad/skärning . Utforska innehållet in Del modulen, som det är beskrivet i [[FreeCAD_Scripting_Basics/sv|FreeCAD Skript Grunder]] sidan, för att lära dig mer.
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* [[Image:Part_Measure_Toggle_3D.svg|32px]] [[Part_Measure_Toggle_3D|Toggle 3D]]: Shows or hides 3D measurements.
The most basic object that can be created is a [[Part Feature|Part Feature]], which has a simple {{PropertyData|Placement}} property, and basic properties to define its color and appearance.


* [[Image:Part_Measure_Toggle_Delta.svg|32px]] [[Part_Measure_Toggle_Delta|Toggle Delta]]: Shows or hides delta measurements.
Another simple object used in 2D geometrical objects is [[Part Part2DObject|Part Part2DObject]], which is the base of [[Sketcher_SketchObject|Sketcher SketchObject]] ([[Sketcher Workbench|Sketcher]]), and most [[Draft Workbench|Draft elements]].


=== Exempel ===
=== Other tools ===


* [[File:Part_Import.svg|32px]] [[Part_Import|Import]]: Imports from *.IGES, *.STEP, or *.BREP files.
För att skapa en linje, växla till Python konsolen och skriv:


* [[File:Part_Export.svg|32px]] [[Part_Export|Export]]: Exports to *.IGES, *.STEP, or *.BREP files.
{{Code|code=
import Part,PartGui
doc=App.newDocument()
l=Part.LineSegment()
l.StartPoint=(0.0,0.0,0.0)
l.EndPoint=(1.0,1.0,1.0)
doc.addObject("Part::Feature","Line").Shape=l.toShape()
doc.recompute()
}}


* [[File:Part_BoxSelection.svg|32px]] [[Part_BoxSelection|Box selection]]: Selects faces from a rectangular area.
Låt oss gå igenom ovanstående python exempel steg för steg:


* [[File:Part_ShapeFromMesh.svg|32px]] [[Part_ShapeFromMesh|Create shape from mesh]]: Creates a shape object from a mesh object.
{{Code|code=
import Part,PartGui
doc=App.newDocument()
}}


* [[File:Part_PointsFromMesh.svg|32px]] [[Part_PointsFromMesh|Create points object from geometry]]: Creates a points object from a geometric object.
laddar Del modulen och skapar ett nytt dokument


* [[File:Part_MakeSolid.svg|32px]] [[Part_MakeSolid|Convert to solid]]: Converts a shape object to a solid object.
{{Code|code=
l=Part.LineSegment()
l.StartPoint=(0.0,0.0,0.0)
l.EndPoint=(1.0,1.0,1.0)
}}


* [[File:Part_ReverseShape.svg|32px]] [[Part_ReverseShape|Reverse shapes]]: Flips the normals of all faces of selected objects.
Linje är egentligen ett linjesegment, därför start och slutpunkten.


* Create a copy:
{{Code|code=
** [[File:Part_SimpleCopy‎.svg|32px]] [[Part_SimpleCopy|Create simple copy]]: Creates a simple copy of a selected object.
doc.addObject("Part::Feature","Line").Shape=l.toShape()
** [[File:Part_TransformedCopy.svg|32px]] [[Part_TransformedCopy|Create transformed copy]]: Creates a transformed copy of a selected object.
}}
** [[File:Part_ElementCopy.svg|32px]] [[Part_ElementCopy|Create shape element copy]]: Creates a copy from an element (vertex, edge, face) of a selected object.
** [[Image:Part_RefineShape.svg|32px]] [[Part_RefineShape|Refine shape]]: Cleans faces by removing unnecessary lines.


* [[File:Part_CheckGeometry.svg|32px]] [[Part_CheckGeometry|Check geometry]]: Checks the geometry of selected objects for errors.
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Detta lägger till en Del objekttyp till dokumentet och tilldelar linjesegmentets formrepresentation till 'Shape' egenskapen på det tillagda objektet. Det är viktigt att förstå att vi använde en geometrisk primitiv (Part.line) för att skapa en topologisk form av den ( toShape() metoden). Endast former kan adderass till dokumentet. I FreeCAD, så används geometriprimitiver som "byggstrukturer" för former.
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{{Code|code=
doc.recompute()
}}

Uppdaterar dokumentet. Detta förbereder också den visuella representationen av det nya del objektet.


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* [[Image:Part Defeaturing.svg|32px]] [[Part_Defeaturing/sv|Defeaturing]]:
Notera att en Linje kan skapas genom att du specificerar dess start och slutpunkt direkt i konstruktorn, till exempel Part.Line(point1,point2) eller vi kan skapa en standardlinje och ändra dess egenskaper efteråt, som vi gjorde här.
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=== Context menu items ===
En cirkel kan skapas på ett liknanade sätt:


* [[File:Std_SetAppearance.svg|32px]] [[Std_SetAppearance|Appearance]]: Determines the appearance of a whole object (color, transparency etc.).
{{Code|code=
import Part
doc = App.activeDocument()
c = Part.Circle()
c.Radius=10.0
f = doc.addObject("Part::Feature", "Circle")
f.Shape = c.toShape()
doc.recompute()
}}


* [[File:Part_ColorPerFace.svg|32px]] [[Part_ColorPerFace|Color per face]]: Assigns colors to individual faces of objects.
Notera igen, att vi använde cirkel (geometriprimitiv) för att konstruera en form av den. Vi kan förstår fortfarande komma åt vår konstruktionsgeometri efteråt, genom att göra:


== Preferences ==
{{Code|code=
s = f.Shape
e = s.Edges[0]
c = e.Curve
}}


<!--The PartDesign preferences are defined in the Part workbench and both the PartDesign workbench and the Part workbench use them-->
Här tar vi formen av vårt objekt f, sedan tar vi dess lista av kanter, i detta fall kommer det endast att vara en, eftersom vi gjorde hela formen av en enda cirkel, så vi tar endast den första punkten i Kant listan, och vi tar dess kurva. Varje Kant har en Kurva, vilken är den geometriprimitiv den är baserad på.
* [[Image:Preferences-part_design.svg|32px]] [[PartDesign_Preferences|Preferences]]: Preferences available for Part Tools (the Part workbench also uses the PartDesign Preferences).
* [[Image:Preferences-import-export.svg|32px]] [[Import_Export_Preferences|Import Export Preferences]]: Preferences available for importing from and exporting to different file formats.
* [[Fine-tuning]]: Some extra parameters to fine-tune Part behavior.


<span id="Scripting"></span>
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=== Skript ===
Gå till [[Topological data scripting/sv|Topologiska data skript]] sidan om du vill veta mer.
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See [[Part scripting|Part scripting]].


== Tutorials ==
== Tutorials ==

* [[Import_from_STL_or_OBJ|Import from STL or OBJ]] : How to import STL/OBJ files in FreeCAD
* [[Import_from_STL_or_OBJ|Import from STL or OBJ]] : How to import STL/OBJ files in FreeCAD
* [[Export_to_STL_or_OBJ|Export to STL or OBJ]] : How to export STL/OBJ files from FreeCAD
* [[Export_to_STL_or_OBJ|Export to STL or OBJ]] : How to export STL/OBJ files from FreeCAD
* [[Whiffle_Ball_tutorial|Whiffle Ball tutorial]] : How to use the Part Module
* [[Whiffle_Ball_tutorial|Whiffle Ball tutorial]] : How to use the Part Module



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{{docnav/sv|Mesh Module/sv|Drawing Module/sv}}
{{docnav/sv|Mesh Workbench/sv|Drawing Workbench/sv}}
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{{Part Tools navi{{#translation:}}}}
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[[Category:Workbenches{{#translation:}}]]
{{Part Tools navi}}

[[Category:Workbenches]]

Revision as of 09:23, 21 April 2024


Part workbench icon

Introduction

FreeCAD's CAD kapabilitet är baserad på OpenCasCade kärnan. Del modulen tillåter FreeCAD att komma åt och använda OpenCasCade objekt och funktioner. OpenCascade är en professionell CAD kärna, som erbjuder avancerad 3D geometrimanipulation och objekt. Del objekten, till skillnad från Nätmodul objekten, är mycket komplexare, och tillåter därför mycket mer avancerade operationer, som koherenta booleska operationer, ändringshistorik och parametriskt beteende.

A more detailed discussion of Part workbench versus Part Design workbench can be found here: Part and Part Design.

The objects created with the Part Workbench are relatively simple; they are intended to be used with boolean operations (unions and cuts) in order to build more complex shapes. This modeling paradigm is known as the constructive solid geometry (CSG) workflow, and it was the traditional methodology used in early CAD systems. On the other hand, the PartDesign Workbench provides a more modern workflow to constructing shapes: it uses a parametrically defined sketch, that is extruded to form a basic solid body, which is then modified by parametric transformations (feature editing), until the final object is obtained.

Part objects are more complex than mesh objects created with the Mesh Workbench, as they permit more advanced operations like coherent boolean operations, modifications history, and parametric behaviour.

The Part Workbench is the basic layer that exposes the OCCT drawing functions to all workbenches in FreeCAD.

Verktygen

Alla Del modul verktygen finns i Del menyn som kommer fram när du laddar Del modulen.

Primitiver

Detta är verktyg för att skapa primitivobjekt.

  • Låda: Ritar en låda genom att ge dess dimensioner
  • Cylinder: Ritar en cylinder genom att ge dess dimensioner
  • Sfär: Ritar en sfär genom att ge dess dimensioner
  • Kon: Ritar en kon genom att ge dess dimensioner
  • Torus: Ritar en torus (ring) genom att ge dess dimensioner
  • CreatePrimitives: Ett verktyg för att skapa olika parametriska geometriska primitiver
  • Shapebuilder: Ett verktyg för att skapa mer komplexa former från olika parametriska geometriska primitiver
  • Cone: Creates a cone.
  • Tube: Creates a tube.
  • Create primitives...: A tool to create one of the following primitives:
    • Plane: Creates a plane.
    • Box: Creates a box. This object can also be created with the Box tool.
    • Cylinder: Creates a cylinder. This object can also be created with the Cylinder tool.
    • Cone: Creates a cone. This object can also be created with the Cone tool.
    • Sphere: Creates a sphere. This object can also be created with the Sphere tool.
    • Ellipsoid: Creates a ellipsoid.
    • Torus: Creates a torus. This object can also be created with the Torus tool.
    • Prism: Creates a prism.
    • Wedge: Creates a wedge.
    • Helix: Creates a helix.
    • Spiral: Creates a spiral.
    • Circle: Creates a circular arc.
    • Ellipse: Creates an elliptical arc.
    • Point: Creates a point.
    • Line: Creates a line.
    • Regular polygon: Creates a regular polygon.

Förändra objekt

Detta är verktyg för att förändra existerande objekt. De kommer att låta dig välja vilka objekt som du vill förändra.

  • Extrudera: Extruderar plana ytor på ett objekt
  • Rotera: Skapar ett objekt genom att rotera ett annat objekt runt en axel
  • Spegling: Speglar de valda objekten runt en given axel
  • Fasning: Fasar (rundar) kanterna på ett objekt
  • Fasning: Fasar (klipper) kanter på ett objekt
  • Ruled Surface:
  • Loft: Lofts från en profil till en annan
  • Sweep: Sopa en eller flera profiler längs en bana
  • Revolve: Creates a solid by revolving an object (not a solid) around an axis.
  • Mirror: Mirrors the selected object across a mirror plane.
  • Fillet: Fillets (rounds) edges of an object.
  • Chamfer: Chamfers edges of an object.
  • Loft: Lofts from one profile to another.
  • Sweep: Sweeps one or more profiles along a path.
  • Section: Creates a section by intersecting an object with a section plane.
  • Offset tools:
    • 3D Offset: Constructs a parallel shape at a certain distance from an original.
    • 2D Offset: Constructs a parallel wire at certain distance from an original, or enlarges/shrinks a planar face.
  • Attachment: Attaches an object to another object.

Boolean

These tools perform boolean operations.

  • Boolean: Utför booleska operationer på objekt.
  • Cut: Cuts (subtracts) one object from another.
  • Fuse: Fuses (unions) two or more objects.
  • Common: Extracts the common (intersection) part of two objects.
  • Join features:
    • Connect: Connects interiors of walled objects.
    • Embed: Embeds a walled object into another walled object.
    • Cutout: Creates a cutout in a wall of an object for another walled object.
  • Splitting tools:
    • Boolean fragments: Creates all pieces obtained from Boolean operations.
    • Slice apart: Slices and splits an object by intersecting it with other objects.
    • Slice: Slices an object by intersecting it with other objects.
    • XOR: Removes space shared by an even number of objects.

Measure

Other tools

  • Import: Imports from *.IGES, *.STEP, or *.BREP files.
  • Export: Exports to *.IGES, *.STEP, or *.BREP files.

Context menu items

  • Appearance: Determines the appearance of a whole object (color, transparency etc.).

Preferences

  • Preferences: Preferences available for Part Tools (the Part workbench also uses the PartDesign Preferences).
  • Import Export Preferences: Preferences available for importing from and exporting to different file formats.
  • Fine-tuning: Some extra parameters to fine-tune Part behavior.

Skript

See Part scripting.

Tutorials


Mesh Workbench/sv
Drawing Workbench/sv