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Inspection Workbench

OpenSCAD Module

Index

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

Import mesh...: Imports a mesh from file.

Export mesh...: Exports a mesh to file.

Create mesh from shape...: Creates meshes from Part objects.

Refinement...: Refines a mesh. introduced in version 0.19

Analyze
- Evaluate and repair mesh...: Opens a dialog to analyze and repair a mesh.
- Face info: Gives information on selected faces.
- Curvature info: Gives information on the curvature.
- Check solid mesh: Checks if a mesh is a solid.
- Boundings info...: Shows the coordinates of the boundingbox of a mesh.

Curvature plot: Calculates the curvature of the vertices of a mesh.

Harmonize normals: Harmonizes the normals of a mesh.

Flip normals: Flips the normals of a mesh.

Fill holes...: Closes holes in a mesh.

Close hole: Interactively closes holes in a mesh.

Add triangle: Adds a triangle to a mesh.

Remove components...: Removes independent components from a mesh.

Remove components by hand...: Marks a component for removal from a mesh.

Create mesh segments...: Creates mesh segments.

Create mesh segments from best-fit surfaces...: Creates mesh segments from best-fit surfaces.

Smooth...: Smooths meshes.

Decimation...: Decimates meshes. introduced in version 0.19

Scale...: Scales meshes.

Regular solid... Creates a regular solid mesh.

Boolean
- Union: Creates a union (fusion) from meshes.
- Intersection: Creates an intersection (common) from meshes.
- Difference: Creates a difference (cut) from meshes.

Cutting
- Cut mesh: Cuts a mesh with a polygon
- Trim mesh: Trims a mesh with a polygon.
- Trim mesh with a plane: Trims a mesh with a plane.
- Create section from mesh and plane: Creates a section from a mesh and a plane.
- Cross-sections...: ???. introduced in version 0.19

Merge: Merges meshes.

Unwrap Mesh: Creates a flat representation of a mesh. introduced in version 0.19

Unwrap Face: Creates a flat representation of a face of a mesh. introduced in version 0.19

Preferences

Preference Import-Export

To jsou jenom některé ze základních aktuálně dostupných operací v rozhraní modulu Síť. Ale sítě FreecADu také mohou být zpracovávány mnoha dalšími způsoby pomocí skriptování.

Meshes can also be handled via Python using Mesh Scripting.

Links

FreeCAD and Mesh Import

Pracovní plocha Návrh Dílu

Modul Díl

Index

Mesh

Miscellaneous: Import mesh, Export mesh, Create mesh from shape, Regular solid, Unwrap Mesh, Unwrap Face
Modifying: Harmonize normals, Flip normals, Fill holes, Close hole, Add triangle, Remove components, Remove components by hand, Smooth, Refinement, Decimation, Scale

Boolean: Union, Intersection, Difference
Cutting: Cut mesh, Trim mesh, Trim mesh with a plane, Create section from mesh and plane, Cross-sections
Components and segments: Merge, Split by components, Create mesh segments, Create mesh segments from best-fit surfaces

Analyze: Evaluate and repair mesh, Face info, Curvature plot, Curvature info, Check solid mesh, Boundings info
Additional: Import Export Preferences, OpenSCAD Workbench, Mesh Scripting

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

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

Addons: Addon Manager, External workbenches, Scripting and macros

Hubs: User hub, Power users hub, Developer hub

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-== Introduction ==
+==Introduction==
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+* [[Image:Mesh_Import.svg|32px]] [[Mesh_Import|Import mesh...]]: Imports a mesh from file.
-=== General tools ===
-* [[Image:Mesh_Import.svg|32px]] [[Mesh Import|Import Mesh]]: Import meshes in several file formats
-* [[Image:Mesh_Export.svg|32px]] [[Mesh Export|Export Mesh]]: Export meshes in several file formats
+* [[Image:Mesh_Export.svg|32px]] [[Mesh_Export|Export mesh...]]: Exports a mesh to file.
-* [[Image:Mesh_FromPartShape.svg|32px]] [[Mesh FromPartShape|Create Mesh from shape]]: Convert [[Part Module|Part]] objects into meshes
-* [[Image:Mesh_CurvaturePlot.png|32px]] [[Mesh CurvaturePlot|Curvature Plot]]: Creates a curvature plot
+* [[Image:Mesh_FromPartShape.svg|32px]] [[Mesh_FromPartShape|Create mesh from shape...]]: Creates meshes from [[Part Module|Part]] objects.
-* [[Image:Mesh_HarmonizeNormals.svg|32px]] [[Mesh HarmonizeNormals|Harmonize Normals]]: Harmonize normals
+* [[Mesh_RemeshGmsh|Refinement...]]: Refines a mesh. {{Version|0.19}}
-* [[Image:Mesh_FlipNormals.svg|32px]] [[Mesh FlipNormals|Flip Normals]]: Flip [http://en.wikipedia.org/wiki/Surface_normal normals]
-* [[Mesh FillHoles|Fill Holes...]]: Fill up holes
+* Analyze
-* [[Image:Mesh_FillInteractiveHole.svg|32px]] [[Mesh FillInteractiveHole|Close hole]]: Close holes in meshes
+** [[Mesh_Evaluation|Evaluate and repair mesh...]]: Opens a dialog to analyze and repair a mesh.
-* [[Mesh AddTriangle|Add triangle]]: Add triangle
-* [[Image:Mesh_RemoveComponents.svg|32px]] [[Mesh RemoveComponents|Remove components...]]: Remove components of meshes
+** [[Image:Mesh_EvaluateFacet.svg|32px]] [[Mesh_EvaluateFacet|Face info]]: Gives information on selected faces.
+** [[Mesh_CurvatureInfo|Curvature info]]: Gives information on the curvature.
-* [[Mesh RemoveCompByHand|Remove components by hand...]]: Remove components of meshes by hand
-* [[Mesh CreateMeshSegment|Create mesh segments...]]: Creates mesh segments
+** [[Mesh_EvaluateSolid|Check solid mesh]]: Checks if a mesh is a solid.
+** [[Mesh_BoundingBox|Boundings info...]]: Shows the coordinates of the boundingbox of a mesh.
-* [[Mesh Smooth|Smooth...]]: Smooth mesh
-* [[Mesh Scale|Scale]]
+* [[Image:Mesh_VertexCurvature.svg|32px]] [[Mesh_VertexCurvature|Curvature plot]]: Calculates the curvature of the vertices of a mesh.
+* [[Image:Mesh_HarmonizeNormals.svg|32px]] [[Mesh_HarmonizeNormals|Harmonize normals]]: Harmonizes the normals of a mesh.
+* [[Image:Mesh_FlipNormals.svg|32px]] [[Mesh_FlipNormals|Flip normals]]: Flips the normals of a mesh.
+* [[Mesh_FillupHoles|Fill holes...]]: Closes holes in a mesh.
+* [[Image:Mesh_FillInteractiveHole.svg|32px]] [[Mesh_FillInteractiveHole|Close hole]]: Interactively closes holes in a mesh.
+* [[Mesh_AddFacet|Add triangle]]: Adds a triangle to a mesh.
+* [[Image:Mesh_RemoveComponents.svg|32px]] [[Mesh_RemoveComponents|Remove components...]]: Removes independent components from a mesh.
+* [[Mesh_RemoveCompByHand|Remove components by hand...]]: Marks a component for removal from a mesh.
+* [[Mesh_Segmentation|Create mesh segments...]]: Creates mesh segments.
+* [[Mesh_SegmentationBestFit|Create mesh segments from best-fit surfaces...]]: Creates mesh segments from best-fit surfaces.
+* [[Mesh_Smoothing|Smooth...]]: Smooths meshes.
+* [[Mesh_Decimating|Decimation...]]: Decimates meshes. {{Version|0.19}}
+* [[Mesh_Scale|Scale...]]: Scales meshes.
+* [[Image:Mesh_BuildRegularSolid.svg|32px]] [[Mesh_BuildRegularSolid|Regular solid...]] Creates a regular solid mesh.
+* Boolean
+** [[Mesh_Union|Union]]: Creates a union (fusion) from meshes.
+** [[Mesh_Intersection|Intersection]]: Creates an intersection (common) from meshes.
+** [[Mesh_Difference|Difference]]: Creates a difference (cut) from meshes.
+* Cutting
-=== Analyze ===
+** [[Image:Mesh_PolyCut.svg|32px]] [[Mesh_PolyCut|Cut mesh]]: Cuts a mesh with a polygon
-Analysis of curvature, faces, and check if a mesh can be safely converted into a solid
+** [[Mesh_PolyTrim|Trim mesh]]: Trims a mesh with a polygon.
-* [[Mesh EvaluateRepair|Evaluate & Repair mesh...]]: Evaluates and repairs meshes
+** [[Mesh_TrimByPlane|Trim mesh with a plane]]: Trims a mesh with a plane.
-* [[Image:Mesh_EvaluateFacet.svg|32px]] [[Mesh EvaluateFacet|Face Info]]: Gives info on faces
+** [[Mesh_SectionByPlane|Create section from mesh and plane]]: Creates a section from a mesh and a plane.
-* [[Mesh EvaluateCurvature|Curvature Info]]: Gives info on curvature
+** [[Mesh_CrossSections|Cross-sections...]]: ???. {{Version|0.19}}
-* [[Mesh EvaluateSolid|Check solid mesh]]: Checks the solid if it can be converted to a mesh
-* [[Mesh BoundingBox|Boundings info...]]: Evaluates the bounding box of a mesh
+* [[Mesh_Merge|Merge]]: Merges meshes.
-=== Regular solid ===
-[[Image:Mesh_RegularSolid.svg|32px]] [[Mesh BuildRegularSolid|Regular solid...]] Create mesh primitives, like cubes, cylinders, cones, or spheres:
-* [[Image:Mesh_Cube.svg|32px]] [[Mesh_Cube|Mesh Cube]] Create a mesh cube
-* [[Image:Mesh_Cylinder.svg|32px]] [[Mesh_Cylinder|Mesh Cylinder]] Create a mesh cylinder
-* [[Image:Mesh_Cone.svg|32px]] [[Mesh_Cone|Mesh Cone]] Create a mesh cone
-* [[Image:Mesh_Sphere.svg|32px]] [[Mesh_Sphere|Mesh Sphere]] Create a mesh sphere
-* [[Image:Mesh_Ellipsoid.svg|32px]] [[Mesh_Ellipsoid|Mesh Ellipsoid]] Create a mesh ellipsoid
-* [[Image:Mesh_Torus.svg|32px]] [[Mesh_Torus|Mesh Torus]] Create a mesh torus
+* [[MeshPart_CreateFlatMesh|Unwrap Mesh]]: Creates a flat representation of a mesh. {{Version|0.19}}
-=== Boolean ===
-* [[Mesh Union|Union]]: Does a union (fusion) on meshes
-* [[Mesh Intersection|Intersection]]: Does an intersection (common) on meshes
-* [[Mesh Difference|Difference]]: Does a difference (cut) on meshes
+* [[MeshPart_CreateFlatFace|Unwrap Face]]: Creates a flat representation of a face of a mesh. {{Version|0.19}}
-=== Cutting ===
-* [[Image:Mesh_PolyCut.svg|32px]] [[Mesh_PolyCut|Mesh PolyCut]]: Cut meshes along a line
-* [[Mesh TrimMesh|Trim mesh]]: Trims meshes
-* [[Mesh TrimMeshWithPlane|Trim mesh with a plane]]: Trims meshes with a plane
-* Create section from mesh and plane
-=== Other ===
+==Preferences==
-* [[Mesh Merge|Merge]]: Merges meshes
-* [[Mesh SelectMesh|Select Mesh]]: Selects meshes
-* [[Mesh SplitMesh|Split Mesh]]: Splits meshes
-* [[Image:Mesh MakeSegment.png|32px]] [[Mesh MakeSegment|Make segment]]: Makes a segment
-== Preferences ==
 * [[Image:Preferences-import-export.svg|32px]] [[Import_Export_Preference|Preference]] Import-Export