Mesh Workbench: Difference between revisions

From FreeCAD Documentation
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== Introduction ==
== Introduction == <!--T:1-->
<!--T:1-->
The [[Mesh Workbench]] handles [http://en.wikipedia.org/wiki/Triangle_mesh triangle meshes]. Meshes are a special type of 3D object, composed of triangular faces connected by their vertices and edges.
The [[Mesh Workbench]] handles [http://en.wikipedia.org/wiki/Triangle_mesh triangle meshes]. Meshes are a special type of 3D object, composed of triangular faces connected by their vertices and edges.


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The Mesh Workbench has a simple interface; all its functions are grouped in the {{MenuCommand|Mesh}} menu.
The Mesh Workbench has a simple interface; all its functions are grouped in the {{MenuCommand|Mesh}} menu.


=== General tools ===
=== General tools === <!--T:19-->
* [[Image:Mesh_ImportMesh.png|32px]] [[Mesh Import|Import Mesh]]: Import meshes in several file formats
* [[Image:Mesh_ImportMesh.png|32px]] [[Mesh Import|Import Mesh]]: Import meshes in several file formats
* [[Image:Mesh_ExportMesh.png|32px]] [[Mesh Export|Export Mesh]]: Export meshes in several file formats
* [[Image:Mesh_ExportMesh.png|32px]] [[Mesh Export|Export Mesh]]: Export meshes in several file formats
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* [[Mesh Scale|Scale]]
* [[Mesh Scale|Scale]]


=== Analyze ===
=== Analyze === <!--T:12-->
<!--T:12-->
Analysis of curvature, faces, and check if a mesh can be safely converted into a solid
Analysis of curvature, faces, and check if a mesh can be safely converted into a solid
* [[Mesh EvaluateRepair|Evaluate & Repair mesh...]]: Evaluates and repairs meshes
* [[Mesh EvaluateRepair|Evaluate & Repair mesh...]]: Evaluates and repairs meshes
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* [[Mesh BoundingBox|Boundings info...]]: Evaluates the bounding box of a mesh
* [[Mesh BoundingBox|Boundings info...]]: Evaluates the bounding box of a mesh


=== Regular solid ===
=== Regular solid === <!--T:13-->
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[[Image:Mesh_Regular_Solid.png|32px]] [[Mesh BuildRegularSolid|Regular solid...]] Create mesh primitives, like cubes, cylinders, cones, or spheres:
[[Image:Mesh_Regular_Solid.png|32px]] [[Mesh BuildRegularSolid|Regular solid...]] Create mesh primitives, like cubes, cylinders, cones, or spheres:
* [[Image:Mesh_Cube.png|32px]] Create a mesh cube
* [[Image:Mesh_Cube.png|32px]] Create a mesh cube
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* [[Image:Mesh_Torus.png|32px]] Create a mesh torus
* [[Image:Mesh_Torus.png|32px]] Create a mesh torus


=== Boolean ===
=== Boolean === <!--T:14-->
<!--T:14-->
* [[Mesh Union|Union]]: Does a union (fusion) on meshes
* [[Mesh Union|Union]]: Does a union (fusion) on meshes
* [[Mesh Intersection|Intersection]]: Does an intersection (common) on meshes
* [[Mesh Intersection|Intersection]]: Does an intersection (common) on meshes
* [[Mesh Difference|Difference]]: Does a difference (cut) on meshes
* [[Mesh Difference|Difference]]: Does a difference (cut) on meshes


=== Cutting ===
=== Cutting === <!--T:20-->
* [[Image:Mesh Cut.png|32px]] [[Mesh Cut|Cut mesh]]: Cut meshes along a line
* [[Image:Mesh Cut.png|32px]] [[Mesh Cut|Cut mesh]]: Cut meshes along a line
* [[Mesh TrimMesh|Trim mesh]]: Trims meshes
* [[Mesh TrimMesh|Trim mesh]]: Trims meshes
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* Create section from mesh and plane
* Create section from mesh and plane


=== Other ===
=== Other === <!--T:15-->
<!--T:15-->
* [[Mesh Merge|Merge]]: Merges meshes
* [[Mesh Merge|Merge]]: Merges meshes
* [[Mesh SelectMesh|Select Mesh]]: Selects meshes
* [[Mesh SelectMesh|Select Mesh]]: Selects meshes
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* [[Image:Mesh MakeSegment.png|32px]] [[Mesh MakeSegment|Make segment]]: Makes a segment
* [[Image:Mesh MakeSegment.png|32px]] [[Mesh MakeSegment|Make segment]]: Makes a segment


== Preferences ==
== Preferences == <!--T:18-->
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* [[Image:Preferences-import-export.svg|32px]] [[Import_Export_Preference|Preference]] Import-Export
* [[Image:Preferences-import-export.svg|32px]] [[Import_Export_Preference|Preference]] Import-Export


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More mesh tools are available in the [[OpenSCAD Workbench]].
More mesh tools are available in the [[OpenSCAD Workbench]].


<!--T:21-->
Meshes can also be handled by [[Mesh Scripting]].
Meshes can also be handled by [[Mesh Scripting]].



Revision as of 14:37, 14 January 2019

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

Analyze

Analysis of curvature, faces, and check if a mesh can be safely converted into a solid

Regular solid

Regular solid... Create mesh primitives, like cubes, cylinders, cones, or spheres:

  • Create a mesh cube
  • Create a mesh cylinder
  • Create a mesh cone
  • Create a mesh sphere
  • Create a mesh ellipsoid
  • 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

Other

Preferences

More mesh tools are available in the OpenSCAD Workbench.

Meshes can also be handled by Mesh Scripting.

Links


PartDesign Workbench
OpenSCAD Module