Mesh Workbench/zh: Difference between revisions
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* [[Image:Mesh MeshFromShape.png|32px]] [[Mesh FromPartShape|Create Mesh from shape]]: Convert [[Part Module|Part]] objects into meshes |
* [[Image:Mesh MeshFromShape.png|32px]] [[Mesh FromPartShape|Create Mesh from shape]]: Convert [[Part Module|Part]] objects into meshes |
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* [[Image:Mesh_CurvaturePlot.png|32px]] [[Mesh CurvaturePlot|Curvature Plot]]: Creates a curvature plot |
* [[Image:Mesh_CurvaturePlot.png|32px]] [[Mesh CurvaturePlot|Curvature Plot]]: Creates a curvature plot |
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* [[Image: |
* [[Image:Mesh_HarmonizeNormals.svg|32px]] [[Mesh HarmonizeNormals|Harmonize Normals]]: Harmonize normals |
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* [[Image:Mesh_FlipNormals. |
* [[Image:Mesh_FlipNormals.svg|32px]] [[Mesh FlipNormals|Flip Normals]]: Flip [http://en.wikipedia.org/wiki/Surface_normal normals] |
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* [[Mesh FillHoles|Fill Holes...]]: Fill up holes |
* [[Mesh FillHoles|Fill Holes...]]: Fill up holes |
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* [[Image:Mesh_FillInteractiveHole.svg|32px]] [[Mesh FillInteractiveHole|Close hole]]: Close holes in meshes |
* [[Image:Mesh_FillInteractiveHole.svg|32px]] [[Mesh FillInteractiveHole|Close hole]]: Close holes in meshes |
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* [[Mesh AddTriangle|Add triangle]]: Add triangle |
* [[Mesh AddTriangle|Add triangle]]: Add triangle |
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* [[Image:Mesh_RemoveComponents. |
* [[Image:Mesh_RemoveComponents.svg|32px]] [[Mesh RemoveComponents|Remove components...]]: Remove components of meshes |
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* [[Mesh RemoveCompByHand|Remove components by hand...]]: Remove components of meshes by hand |
* [[Mesh RemoveCompByHand|Remove components by hand...]]: Remove components of meshes by hand |
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* [[Mesh CreateMeshSegment|Create mesh segments...]]: Creates mesh segments |
* [[Mesh CreateMeshSegment|Create mesh segments...]]: Creates mesh segments |
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=== Regular solid === |
=== Regular solid === |
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[[Image: |
[[Image:Mesh_RegularSolid.svg|32px]] [[Mesh BuildRegularSolid|Regular solid...]] Create mesh primitives, like cubes, cylinders, cones, or spheres: |
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* [[Image:Mesh_Cube. |
* [[Image:Mesh_Cube.svg|32px]] [[Mesh_Cube|Mesh Cube]] Create a mesh cube |
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* [[Image:Mesh_Cylinder. |
* [[Image:Mesh_Cylinder.svg|32px]] [[Mesh_Cylinder|Mesh Cylinder]] Create a mesh cylinder |
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* [[Image:Mesh_Cone. |
* [[Image:Mesh_Cone.svg|32px]] [[Mesh_Cone|Mesh Cone]] Create a mesh cone |
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* [[Image:Mesh_Sphere. |
* [[Image:Mesh_Sphere.svg|32px]] [[Mesh_Sphere|Mesh Sphere]] Create a mesh sphere |
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* [[Image:Mesh_Ellipsoid. |
* [[Image:Mesh_Ellipsoid.svg|32px]] [[Mesh_Ellipsoid|Mesh Ellipsoid]] Create a mesh ellipsoid |
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* [[Image:Mesh_Torus. |
* [[Image:Mesh_Torus.svg|32px]] [[Mesh_Torus|Mesh Torus]] Create a mesh torus |
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=== Boolean === |
=== Boolean === |
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=== Cutting === |
=== Cutting === |
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* [[Image:Mesh_PolyCut. |
* [[Image:Mesh_PolyCut.svg|32px]] [[Mesh_PolyCut|Mesh PolyCut]]: Cut meshes along a line |
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* [[Mesh TrimMesh|Trim mesh]]: Trims meshes |
* [[Mesh TrimMesh|Trim mesh]]: Trims meshes |
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* [[Mesh TrimMeshWithPlane|Trim mesh with a plane]]: Trims meshes with a plane |
* [[Mesh TrimMeshWithPlane|Trim mesh with a plane]]: Trims meshes with a plane |
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Revision as of 04:56, 20 February 2020
The FreeCAD Mesh Workbench Icon
Introduction
The Mesh Workbench handles triangle meshes. Meshes are a special type of 3D object, composed of triangular faces connected by their vertices and edges.
Many 3D applications, like Sketchup, Blender, Maya and 3D Studio Max, use meshes as their primary type of 3D object. Since meshes are very simple objects, containing only vertices (points), edges and triangular faces, they are very easy to create, modify, subdivide, stretch, and can easily be passed from one application to another without any loss of details. In addition, since meshes contain very simple data, 3D applications can usually manage very large quantities of them without using a lot of resources. For these reasons, meshes are often the 3D object type of choice for applications dealing with movies, animation, and image creation.
However, in the field of engineering meshes present one big limitation: they are only made of surfaces, and have no mass information, so they don't behave as solids. This means that all solid-based operations, such as addition or subtraction, are difficult to perform on meshes. The Mesh Workbench is useful to import 3D data in mesh format, to analyse it, detect errors, and finally convert it to a solid, for use with the Part Workbench.
Tools
The Mesh Workbench has a simple interface; all its functions are grouped in the Mesh menu.
General tools
- Import Mesh: Import meshes in several file formats
- Export Mesh: Export meshes in several file formats
- Create Mesh from shape: Convert Part objects into meshes
- Curvature Plot: Creates a curvature plot
- Harmonize Normals: Harmonize normals
- Flip Normals: Flip normals
- Fill Holes...: Fill up holes
- Close hole: Close holes in meshes
- Add triangle: Add triangle
- Remove components...: Remove components of meshes
- Remove components by hand...: Remove components of meshes by hand
- Create mesh segments...: Creates mesh segments
- Smooth...: Smooth mesh
- Scale
Analyze
Analysis of curvature, faces, and check if a mesh can be safely converted into a solid
- Evaluate & Repair mesh...: Evaluates and repairs meshes
- Face Info: Gives info on faces
- Curvature Info: Gives info on curvature
- Check solid mesh: Checks the solid if it can be converted to a mesh
- Boundings info...: Evaluates the bounding box of a mesh
Regular solid
File:Mesh RegularSolid.svg Regular solid... Create mesh primitives, like cubes, cylinders, cones, or spheres:
- Mesh Cube Create a mesh cube
- Mesh Cylinder Create a mesh cylinder
- Mesh Cone Create a mesh cone
- Mesh Sphere Create a mesh sphere
- Mesh Ellipsoid Create a mesh ellipsoid
- Mesh Torus Create a mesh torus
Boolean
- Union: Does a union (fusion) on meshes
- Intersection: Does an intersection (common) on meshes
- Difference: Does a difference (cut) on meshes
Cutting
- Mesh PolyCut: Cut meshes along a line
- Trim mesh: Trims meshes
- Trim mesh with a plane: Trims meshes with a plane
- Create section from mesh and plane
Other
- Merge: Merges meshes
- Select Mesh: Selects meshes
- Split Mesh: Splits meshes
- File:Mesh MakeSegment.png Make segment: Makes a segment
Preferences
- Preference Import-Export
More mesh tools are available in the OpenSCAD Workbench.
Meshes can also be handled via Python using Mesh Scripting.
Links
- 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
- 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, Assembly, BIM, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework
- Hubs: User hub, Power users hub, Developer hub