Part: Crea forma da mesh
|
|
| Posizione nel menu |
|---|
| Part → Crea forma da mesh... |
| Ambiente |
| Part |
| Avvio veloce |
| Nessuno |
| Introdotto nella versione |
| - |
| Vedere anche |
| Converti in solido, Affina forma, Crea punti da mesh |
Introduction
Introduzione
Questo comando crea una forma da un oggetto mesh. In FreeCAD gli oggetti mesh hanno limitate capacità di editing, convertendoli in forme permette di utilizzarli con molti più strumenti (vedere anche le Note).
The inverse operation is 
Mesh FromPartShape from the 
Mesh Workbench.
Usage
Utilizzo
- Selezionare un oggetto mesh.
- Scegliere Part →
Crea forma da mesh dal menu in alto. - Un menu pop-up chiede di definire la tolleranza per la chiusura (valore di default: 0,1)
- Dall'oggetto mesh viene creato un nuovo oggetto forma indipendente.
Limitazioni
Non sono disponibili l'analisi e la convalida dell'oggetto mesh.
After creation of a Shape, it may be useful to use Convert to solid (necessary for boolean operations) and 
Refine shape.
Links
- Edit STL Files In FreeCAD video by AllVisuals4U.
Script
Creating a Shape from a Mesh can be done by using the makeShapeFromMesh method from a Part TopoShape; you need to specify the source mesh and tolerance, and assign the result to a new Part Feature object.
Notice that the mesh must be recalculated before it is converted to a Shape, otherwise there won't be topology information, and the conversion won't be successful.
import FreeCAD as App
import Part
doc = App.newDocument()
mesh = doc.addObject("Mesh::Cube", "Mesh")
mesh.recompute()
solid = doc.addObject("Part::Feature", "Shape")
shape = Part.Shape()
shape.makeShapeFromMesh(mesh.Mesh.Topology, 0.1)
solid.Shape = shape
solid.Placement.Base = App.Vector(15, 0, 0)
solid.purgeTouched()
doc.recompute()
- Primitives: Box, Cone, Cylinder, Sphere, Torus, CreatePrimitives, Shapebuilder
- Modifying objects: Booleans, Union, Common, Cut, Join features, Connect, Embed, Cutout
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- Installazione: Windows, Linux, Mac; Getting started
- Base: About FreeCAD, Workbenches, Preferences, Document structure, Interface Customization, Properties, Mouse Model; Tutorials
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- Scripting: Introduction to Python, FreeCAD scripting tutorial, FreeCAD Scripting Basics, How to install macros, Gui Command, Units Modules: Builtin modules, Workbench creation, Installing more workbenches Meshes: Mesh Scripting, Mesh Module Parts: The Part Module, Topological data scripting, PythonOCC, Mesh to Part Coin scenegraph: The Coin/Inventor scenegraph, Pivy Qt interface: PySide, Using the FreeCAD GUI, Dialog creation Parametric objects: Scripted objects Other: Code snippets, Line drawing function, Embedding FreeCAD, FreeCAD vector math library, Power users hub, Python, Macros, FreeCAD Scripting Basics, Topological data scripting
