Mesh Workbench/cs: Difference between revisions

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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.
To jsou jenom některé ze základních aktuálně dostupných operací v rozhraní modulu Síť. Ale sítě FreecADu také mohou být zpracovávány mnoha dalšími způsoby pomocí [[Mesh Scripting/cs| skriptování]].
* [[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==
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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==
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* 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 11:58, 25 July 2020

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Introduction

Pracovní plocha Síť pracuje s trojúhelníkovými sítěmi. Sítě jsou speciální typ 3D objektů, složených z trojúhelníků spojených jejich hranami a rohy (zvané také vrcholy).

Mnoho 3D aplikací používá s=tě jako svůj primární typ objektů, jako (software) SketchUp, Blender, Maya nebo 3d studio max. Protože sítě jsou velmi jednoduché objekty, které obsahují pouze vrcholy (body), hrany a (trojúhelníkové) plochy, jsou snadno vytvořitelné, modifikovatelné, dají se dělit, natahovat a mohou být snadno předávané z jedné aplikace do druhé bez jakékoliv ztráty. Kromě toho, protože obsahují velmi jednoduchá data, mohou jich 3D aplikace obsahovat velmi velké množství bez jakýchkoliv problémů. Z těchto důvodů jsou sítě velmi často 3D objekty využívané v aplikacích pracujících s filmy, animacemi a při tvorbě obrázků.

Na poli inženýringu však sítě představují jeden velký problém: Jsou to velmi hloupé objekty složené pouze z bodů, přímek a ploch. Jsou vytvořeny pouze z povrchů a nemají žádnou informaci o hmotě, takže se nechovají jako tělesa. V sítích není žádný automatický způsob jak zjistit jestli je bod uvnitř nebo zvenku objektu. To znamená, že všechny operace nad tělesy, jako je přidávání nebo odebírání, jsou u sítí vždy trochu složitější a často vracejí chyby.

Použití modulu Síť

V současné době má modul Síť velmi jednoduché rozhraní, všechny jeho funkce jsou seskupeny v menu Síť. Nejdůležitějšími funkcemi, které v současné době můžete provádět se sítěmi jsou:

  • Importovat sítě v několika souborových formátech
  • Exportovat sítě v několika souborových formátech
  • Konvertovat objekty Díl do sítí
  • Analyzovat zaoblení, plochy, a kontrolovat jestli mohou být bezpečně konvertovány do těles
  • Flip mesh normals
  • Uzavírat mezery v sítích
  • Odebírat plochy ze sítí
  • Spojovat, odebírat a protínat sítě
  • Vytvářet síťová primitiva (základní geometrické objekty), jako jsou kostky, koule, kužely nebo válce
  • Dělit sítě podle přímky
  • 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



Mesh
User documentation
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