Bancada de trabalho Mesh
Introdução
A Bancada de Malhas manipula malhas triangulares. As malhas são um tipo especial de objeto 3D, composto de faces triangulares conectadas por seus vértices e arestas.
Muitos aplicativos 3D, como Sketchup, Blender, .org / wiki / Maya_ (software) Maya e 3D Studio Max, usam malhas como seu tipo principal de objeto 3D. Como as malhas são objetos muito simples, contendo apenas vértices (pontos), arestas e faces triangulares, elas são muito fáceis de criar, modificar, subdividir, estender e podem ser facilmente passadas de um aplicativo para outro sem qualquer perda de detalhes. Além disso, como as malhas contêm dados muito simples, os aplicativos 3D geralmente podem gerenciar grandes quantidades deles sem usar muitos recursos. Por esses motivos, as malhas são geralmente o tipo de objeto 3D escolhido para aplicativos que lidam com filmes, animações e criação de imagens.
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
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
- File:Mesh PolyCut.png 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 by Mesh Scripting.
Links
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
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
- Hubs: User hub, Power users hub, Developer hub