Mesh Workbench/hu: Difference between revisions

From FreeCAD Documentation
(Updating to match new version of source page)
(Updating to match new version of source page)
Line 20: Line 20:
Many 3D applications, like [http://en.wikipedia.org/wiki/Sketchup Sketchup], [http://en.wikipedia.org/wiki/Blender_(software) Blender], [http://en.wikipedia.org/wiki/Maya_(software) Maya] and [http://en.wikipedia.org/wiki/3d_max 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.
Many 3D applications, like [http://en.wikipedia.org/wiki/Sketchup Sketchup], [http://en.wikipedia.org/wiki/Blender_(software) Blender], [http://en.wikipedia.org/wiki/Maya_(software) Maya] and [http://en.wikipedia.org/wiki/3d_max 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 [[Glossary#Solid|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 [[Image:Workbench_Part.svg|24px]] [[Part Workbench|Part Workbench]].
However, in the field of engineering meshes present a big limitation: they cannot accurately define curved surfaces. This is why FreeCAD relies on [[wikipedia:Boundary representation|Brep]] instead. The Mesh Workbench offers some commands to directly manipulate meshes, but it is most often used to import 3D mesh data and convert it to a solid for use with the [[Image:Workbench_Part.svg|24px]] [[Part Workbench|Part Workbench]] or [[Image:Workbench_PartDesign.svg|24px]] [[PartDesign Workbench|PartDesign Workbench]].


[[Image:Mesh_example.jpg|500px]]
[[Image:Mesh_example.jpg|500px]]
Line 30: Line 30:
All Mesh Workbench tools can be accessed from the '''Meshes''' menu. Some tools are also available in the '''Mesh tools''' toolbar.
All Mesh Workbench tools can be accessed from the '''Meshes''' menu. Some tools are also available in the '''Mesh tools''' toolbar.


* [[Image:Mesh_Import.svg|32px]] [[Mesh_Import|Import mesh...]]: Imports a mesh object from file.
* [[Image:Mesh_Import.svg|32px]] [[Mesh_Import|Import mesh...]]: Imports a mesh object from a file.


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


* [[Image:Mesh_FromPartShape.svg|32px]] [[Mesh_FromPartShape|Create mesh from shape...]]: Creates mesh objects from shape objects.
* [[Image:Mesh_FromPartShape.svg|32px]] [[Mesh_FromPartShape|Create mesh from shape...]]: Creates mesh objects from shape objects.
Line 111: Line 111:
{{docnav|PartDesign Workbench|OpenSCAD modul}}
{{docnav|PartDesign Workbench|OpenSCAD modul}}
</div>
</div>




{{Mesh Tools navi{{#translation:}}}}
{{Mesh Tools navi{{#translation:}}}}

{{Userdocnavi{{#translation:}}}}
{{Userdocnavi{{#translation:}}}}

[[Category:Workbenches{{#translation:}}]]
[[Category:Workbenches{{#translation:}}]]

Revision as of 20:51, 22 August 2020

Other languages:
Mesh workbench icon

Introduction

A háló munkafelület háromszöghálókat kezel. A hálók különleges típusú 3D objektumok, amelyek a szélüknél és sarkaiknál kapcsolódó háromszögekből állnak (verticle néven is ismertek).

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 a big limitation: they cannot accurately define curved surfaces. This is why FreeCAD relies on Brep instead. The Mesh Workbench offers some commands to directly manipulate meshes, but it is most often used to import 3D mesh data and convert it to a solid for use with the Part Workbench or PartDesign Workbench.

A háló modul használata

All Mesh Workbench tools can be accessed from the Meshes menu. Some tools are also available in the Mesh tools toolbar.

  • 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:

Hivatkozások


PartDesign Workbench
OpenSCAD modul
Mesh
User documentation
Retrieved from "http://wiki.freecad.org/index.php?title=Mesh_Workbench/hu&oldid=741244"