Mesh Workbench/sv: Difference between revisions

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|[[Inspection Workbench|Inspection Workbench]]
|[[Inspection_Workbench|Inspection Workbench]]
|[[OpenSCAD Module|OpenSCAD Module]]
|[[OpenSCAD_Module|OpenSCAD Module]]
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* [[Image:Mesh_Import.svg|32px]] [[Mesh_Import|Import mesh...]]: Imports a mesh from file.
* [[Image:Mesh_Import.svg|32px]] [[Mesh_Import|Import mesh...]]: Imports a mesh object from file.


* [[Image:Mesh_Export.svg|32px]] [[Mesh_Export|Export mesh...]]: Exports a mesh to file.
* [[Image:Mesh_Export.svg|32px]] [[Mesh_Export|Export mesh...]]: Exports a mesh object to file.


* [[Image:Mesh_FromPartShape.svg|32px]] [[Mesh_FromPartShape|Create mesh from shape...]]: Creates meshes from [[Part Module|Part]] objects.
* [[Image:Mesh_FromPartShape.svg|32px]] [[Mesh_FromPartShape|Create mesh from shape...]]: Creates mesh objects from shape objects.


* [[Mesh_RemeshGmsh|Refinement...]]: Refines a mesh. {{Version|0.19}}
* [[Mesh_RemeshGmsh|Refinement...]]: Remeshes a mesh object. {{Version|0.19}}


* Analyze
* Analyze
** [[Mesh_Evaluation|Evaluate and repair mesh...]]: Opens a dialog to analyze and repair a mesh.
** [[Mesh_Evaluation|Evaluate and repair mesh...]]: Evaluates and repairs a mesh object.
** [[Image:Mesh_EvaluateFacet.svg|32px]] [[Mesh_EvaluateFacet|Face info]]: Gives information on selected faces.
** [[Image:Mesh_EvaluateFacet.svg|32px]] [[Mesh_EvaluateFacet|Face info]]: Shows information about faces of mesh objects.
** [[Mesh_CurvatureInfo|Curvature info]]: Gives information on the curvature.
** [[Mesh_CurvatureInfo|Curvature info]]: Shows the absolute curvature of [[Mesh_VertexCurvature|curvature objects]] at selected points.
** [[Mesh_EvaluateSolid|Check solid mesh]]: Checks if a mesh is a solid.
** [[Mesh_EvaluateSolid|Check solid mesh]]: Checks if a mesh object is solid.
** [[Mesh_BoundingBox|Boundings info...]]: Shows the coordinates of the boundingbox of a mesh.
** [[Mesh_BoundingBox|Boundings info...]]: Shows the bounding box coordinates of a mesh object.


* [[Image:Mesh_VertexCurvature.svg|32px]] [[Mesh_VertexCurvature|Curvature plot]]: Calculates the curvature of the vertices of a mesh.
* [[Image:Mesh_VertexCurvature.svg|32px]] [[Mesh_VertexCurvature|Curvature plot]]: Creates Mesh Curvature objects for mesh objects.


* [[Image:Mesh_HarmonizeNormals.svg|32px]] [[Mesh_HarmonizeNormals|Harmonize normals]]: Harmonizes the normals of a mesh.
* [[Image:Mesh_HarmonizeNormals.svg|32px]] [[Mesh_HarmonizeNormals|Harmonize normals]]: Harmonizes the normals of mesh objects.


* [[Image:Mesh_FlipNormals.svg|32px]] [[Mesh_FlipNormals|Flip normals]]: Flips the normals of a mesh.
* [[Image:Mesh_FlipNormals.svg|32px]] [[Mesh_FlipNormals|Flip normals]]: Flips the normals of mesh objects.


* [[Mesh_FillupHoles|Fill holes...]]: Closes holes in a mesh.
* [[Mesh_FillupHoles|Fill holes...]]: Fills holes in mesh objects.


* [[Image:Mesh_FillInteractiveHole.svg|32px]] [[Mesh_FillInteractiveHole|Close hole]]: Interactively closes holes in a mesh.
* [[Image:Mesh_FillInteractiveHole.svg|32px]] [[Mesh_FillInteractiveHole|Close hole]]: Fills selected holes in mesh objects.


* [[Mesh_AddFacet|Add triangle]]: Adds a triangle to a mesh.
* [[Mesh_AddFacet|Add triangle]]: Adds faces along a boundary of an open mesh object.


* [[Image:Mesh_RemoveComponents.svg|32px]] [[Mesh_RemoveComponents|Remove components...]]: Removes independent components from a mesh.
* [[Image:Mesh_RemoveComponents.svg|32px]] [[Mesh_RemoveComponents|Remove components...]]: Removes faces from mesh objects.


* [[Mesh_RemoveCompByHand|Remove components by hand...]]: Marks a component for removal from a mesh.
* [[Mesh_RemoveCompByHand|Remove components by hand...]]: Removes components from mesh objects.


* [[Mesh_Segmentation|Create mesh segments...]]: Creates mesh segments.
* [[Mesh_Segmentation|Create mesh segments...]]: Creates separate mesh segments for specified surface types of a mesh object.


* [[Mesh_SegmentationBestFit|Create mesh segments from best-fit surfaces...]]: Creates mesh segments from best-fit surfaces.
* [[Mesh_SegmentationBestFit|Create mesh segments from best-fit surfaces...]]: Creates separate mesh segments for specified surface types of a mesh object, and can identify their parameters.


* [[Mesh_Smoothing|Smooth...]]: Smooths meshes.
* [[Mesh_Smoothing|Smooth...]]: Smooths mesh objects.


* [[Mesh_Decimating|Decimation...]]: Decimates meshes. {{Version|0.19}}
* [[Mesh_Decimating|Decimation...]]: Reduces the number of faces in mesh objects. {{Version|0.19}}


* [[Mesh_Scale|Scale...]]: Scales meshes.
* [[Mesh_Scale|Scale...]]: Scales mesh objects.


* [[Image:Mesh_BuildRegularSolid.svg|32px]] [[Mesh_BuildRegularSolid|Regular solid...]] Creates a regular solid mesh.
* [[Image:Mesh_BuildRegularSolid.svg|32px]] [[Mesh_BuildRegularSolid|Regular solid...]] Creates a regular parametric solid mesh object.


* Boolean
* Boolean
** [[Mesh_Union|Union]]: Creates a union (fusion) from meshes.
** [[Mesh_Union|Union]]: Creates a mesh object that is the union of two mesh objects.
** [[Mesh_Intersection|Intersection]]: Creates an intersection (common) from meshes.
** [[Mesh_Intersection|Intersection]]: Creates a mesh object that is the intersection of two mesh objects.
** [[Mesh_Difference|Difference]]: Creates a difference (cut) from meshes.
** [[Mesh_Difference|Difference]]: Creates a mesh object that is the difference of two mesh objects.


* Cutting
* Cutting
** [[Image:Mesh_PolyCut.svg|32px]] [[Mesh_PolyCut|Cut mesh]]: Cuts a mesh with a polygon
** [[Image:Mesh_PolyCut.svg|32px]] [[Mesh_PolyCut|Cut mesh]]: Cuts whole faces from mesh objects.
** [[Mesh_PolyTrim|Trim mesh]]: Trims a mesh with a polygon.
** [[Mesh_PolyTrim|Trim mesh]]: Trims faces and parts of faces from mesh objects.
** [[Mesh_TrimByPlane|Trim mesh with a plane]]: Trims a mesh with a plane.
** [[Mesh_TrimByPlane|Trim mesh with a plane]]: Trims faces and parts of faces on one side of a plane from a mesh object.
** [[Mesh_SectionByPlane|Create section from mesh and plane]]: Creates a section from a mesh and a plane.
** [[Mesh_SectionByPlane|Create section from mesh and plane]]: Creates a cross section across a mesh object.
** [[Mesh_CrossSections|Cross-sections...]]: ???. {{Version|0.19}}
** [[Mesh_CrossSections|Cross-sections...]]: Creates multiple cross sections across mesh objects. {{Version|0.19}}


* [[Mesh_Merge|Merge]]: Merges meshes.
* [[Mesh_Merge|Merge]]: Creates a mesh object by combining the meshes of two or more mesh objects.


* [[MeshPart_CreateFlatMesh|Unwrap Mesh]]: Creates a flat representation of a mesh. {{Version|0.19}}
* [[MeshPart_CreateFlatMesh|Unwrap Mesh]]: Creates a flat representation of a mesh object. {{Version|0.19}}


* [[MeshPart_CreateFlatFace|Unwrap Face]]: Creates a flat representation of a face of a mesh. {{Version|0.19}}
* [[MeshPart_CreateFlatFace|Unwrap Face]]: Creates a flat representation of a face of a shape object. {{Version|0.19}}


==Preferences==
==Preferences==


There are some [[Import_Export_Preferences#Mesh_Formats|export preferences related to Mesh Formats]] but these are not used by commands belonging to this workbench. They are used by the [[Std_Export|Std Export]] command.
* [[Image:Preferences-import-export.svg|32px]] [[Import_Export_Preference|Preference]] Import-Export


Mesh Workbench preferences can be found in the following categories of the [[Preferences_Editor|Preferences Editor]]:
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* [[Image:Preferences-display.svg|32px]] [[Preferences_Editor#Display_settings|Display]]: On the [[Preferences_Editor#Mesh_view|Mesh view]] tab several preferences can be set.
Detta är bara några av de grundläggande operationerna som för närvarande finns i Nätmodulens gränssnitt. Men FreeCAD nät kan också hanteras på många fler sätt med [[Mesh Scripting/sv| skript]].
* [[Image:Preferences-openscad.svg|32px]] [[OpenSCAD_Preferences|OpenSCAD]]: The [[Mesh_Union|Mesh Union]], [[Mesh_Intersection|Mesh Intersection]] and [[Mesh_Difference|Mesh Difference]] commands require [http://www.openscad.org/ OpenSCAD] and use the '''OpenSCAD executable''' preference to find its executable.
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==Notes==
Meshes can also be handled via [[Python]] using [[Mesh Scripting|Mesh Scripting]].


* More mesh tools are available in the [[Image:Workbench_OpenSCAD.svg|24px]] [[OpenSCAD_Workbench|OpenSCAD Workbench]].
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==Links==
* Meshes can also be manipulated with [[Mesh_Scripting|Python scripts]].
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* See also: [[FreeCAD_and_Mesh_Import|FreeCAD and Mesh Import]]


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* [[FreeCAD and Mesh Import|FreeCAD and Mesh Import]]


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Revision as of 19:51, 2 August 2020

Other languages:
Mesh workbench icon

Introduction

Nät arbetsbänken hanterar triangelnät. Nät är en speciell typ av 3D objekt, sammansatt av trianglar som är ihopkopplade via deras kanter och hörn.

Många 3D applikationer använder nät som deras primära 3D objektstyp, som sketchup, blender, maya eller 3d studio max. Eftersom nät är mycket simpla objekt, som endast innehåller hörn (punkter), kanter och (triangulära) ytor, så är de mycket lätta att skapa, förändra, dela upp, sträcka ut, och kan lätt flyttas från en applikation till en annan utan några förluster. Eftersom de dessutom innehåller mycket simpel data, så kan 3D applikationer vanligtvis hantera mycket stora kvantiteter av dem utan några problem. Av dessa anledningar, så är nät ofta den valda 3D objekttypen i applikationer för filmer, animeringar, och bildbehandling.

Emellertid har nät en stor begränsning inom konstruktionsfältet: De är mycket 'dumma' objekt, som endast består av punkter, linjer och ytor. De består endast av ytor, och har ingen informationom dess massa, så de beter sig inte som solider. I ett nät så finns det inget automatiskt sätt att avgöra om en punkt är inuti eller utanför objektet. Detta innebär att alla solidbaserade operationer, som addition eller subtraktion, alltid är svåra att utföra på nät, och ofta orsakar fel.

Använda nätmodulen

Nätmodulen har för närvarande ett mycket enkelt gränssnitt, alla dess funktioner är grupperade i Nät menyn. De viktigaste operationerna som du för närvarande kan göra med nät är:

  • Importera nät i flera filformat
  • Exportera nät i flera filformat
  • Konvertera Del objekt till nät
  • Analysera kurvatur, ytor, och kontrollera om ett nät kan konverteras till en solid på ett säkert sätt
  • Vända nät normaler
  • Stänga hål i nät
  • Ta bort ytor i nät
  • Förena, subtrahera och skära nät
  • Skapa nätprimitiver, som kuber, sfärer, Koner eller cylindrar
  • Klippa nät längs en linje
  • Close hole: Fills selected holes in mesh objects.
  • Add triangle: Adds faces along a boundary of an open mesh object.
  • Boolean
    • Union: Creates a mesh object that is the union of two mesh objects.
    • Intersection: Creates a mesh object that is the intersection of two mesh objects.
    • Difference: Creates a mesh object that is the difference of two mesh objects.
  • Merge: Creates a mesh object by combining the meshes of two or more mesh objects.

Preferences

There are some export preferences related to Mesh Formats but these are not used by commands belonging to this workbench. They are used by the Std Export command.

Mesh Workbench preferences can be found in the following categories of the Preferences Editor:

Notes


Workbenches/sv
Part Module/sv


Mesh
User documentation
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