Sketcher SketchObject/fr: Difference between revisions
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Un [[Sketcher_SketchObject/fr|Sketcher SketchObject]], ou formellement un {{incode|Sketcher::SketchObject}}, est l'élément de base pour créer des objets 2D avec l'[[Sketcher_Workbench/fr|Atelier Sketcher]]. |
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The {{incode|Sketcher::SketchObject}} is derived from [[Part_Part2DObject|Part Part2DObject]], which means it is a [[Part Feature|Part Feature]] object specialized for 2D geometry. Like Part2DObject, the SketchObject can be attached to planes and faces. In addition to this, the SketchObject can handle geometrical constraints of the lines and curves that are drawn within it. |
The {{incode|Sketcher::SketchObject}} is derived from [[Part_Part2DObject|Part Part2DObject]], which means it is a [[Part Feature|Part Feature]] object specialized for 2D geometry. Like Part2DObject, the SketchObject can be attached to planes and faces. In addition to this, the SketchObject can handle geometrical constraints of the lines and curves that are drawn within it. |
Revision as of 13:52, 1 December 2019
Introduction
Un Sketcher SketchObject, ou formellement un Sketcher::SketchObject
, est l'élément de base pour créer des objets 2D avec l'Atelier Sketcher.
The Sketcher::SketchObject
is derived from Part Part2DObject, which means it is a Part Feature object specialized for 2D geometry. Like Part2DObject, the SketchObject can be attached to planes and faces. In addition to this, the SketchObject can handle geometrical constraints of the lines and curves that are drawn within it.
Simplified diagram of the relationships between the core objects in FreeCAD. The Sketcher::SketchObject
class is specialized for 2D shapes, and in addition it can handle constraints.
Utilisation
- Switch to the Sketcher Workbench.
- Press Sketcher NewSketch.
- Select a Sketch orientation: XY-plane, XZ-plane, or YZ-plane. Optionally also choose Reverse direction, and give an Offset value.
- Press OK.
Although the SketchObject can be used by itself to draw on a plane, it is most commonly used in conjunction with the PartDesign Workbench to create extruded solids.
- Switch to the PartDesign Workbench.
- Press PartDesign Body.
- Press PartDesign NewSketch.
- Select feature: XY_Plane (Base plane), XZ_Plane (Base plane), or YZ_Plane (Base plane).
- Press OK.
Propriétés
See Property for all property types that scripted objects can have.
A Sketcher SketchObject (Sketcher::SketchObject
class) is derived from a Part Part2DObject (Part::Part2DObject
class), therefore it shares all the latter's properties.
In addition to the properties described in Part Part2DObject, the basic Sketcher SketchObject has the following properties in the property editor.
Données
Attachment
- DonnéesMap Mode: See Part Attachment for more information on all attachment mapping modes.
Sketch
- DonnéesConstraints: named constraints, if they exist; otherwise it is an empty list
[]
.
Vue
Auto Constraints
- VueAutoconstraints: if
true
it will try setting constraints when the geometry is drawn.
Visibility automation
- VueEditing Workbench: normally
SketcherWorkbench
, it is the name of the workbench to activate when editing the sketch. - VueHide Dependent: if
true
all objects that depend on the sketch are hidden when opening the sketch. - VueRestore Camera: if
true
the camera position is saved before opening the sketch, and is restored after closing it. - VueShow Links: if
true
all objects used in links to external geometry are shown when opening the sketch. - VueShow Support: if
true
all objects this sketch is attached to are shown when opening the sketch.
Création de scripts
See also: FreeCAD Scripting Basics, and scripted objects.
See Part Feature for the general information.
A Sketcher SketchObject is created with the addObject()
method of the document.
import FreeCAD as App
doc = App.newDocument()
obj = App.ActiveDocument.addObject("Sketcher::SketchObject", "Name")
obj.Label = "Custom label"
- Général : Créer une esquisse, Modifier l'esquisse, Esquisse sur une face, Réorienter l'esquisse, Valider l'esquisse, Fusionner les esquisses, Esquisse miroir, Quitter l'esquisse, Vue de l'esquisse, Vue de section, Grille, Aimantation, Ordre de rendu, Arrêt de l'opération
- Géométries : Point, Ligne, Arc, Arc par 3 points, Cercle, Cercle par 3 points, Ellipse par son centre, Ellipse par 3 points, Arc d'ellipse, Arc d'hyperbole, Arc de parabole, B-spline simple, B-spline périodique, B-spline par des nœuds, B-spline périodique par des nœuds, Polyligne, Rectangle, Rectangle centré, Rectangle arrondi, Triangle, Carré, Pentagone, Hexagone, Heptagone, Octogone, Polygone régulier, Contour oblong, Congé, Congé avec contrainte, Ajuster, Prolonger, Diviser, Géométrie externe, Copie carbone, Géométrie de construction
- Contraintes :
- Contraintes geometriques : Coïncidence, Point sur objet, Vertical, Horizontal, Parallèle, Perpendiculaire, Tangente, Égalité, Symétrie, Blocage
- Contraintes de dimension : Fixe, Distance horizontale, Distance verticale, Dimensionnelle, Rayon ou poids, Diamètre, Rayon automatique, Angle, Contrainte de réfraction
- Outils de contraintes : Contraintes pilotantes, Activation des contraintes
- Outils : Degrés de liberté non contraints, Contraintes associées, Éléments associés aux contraintes, Contraintes redondantes, Contraintes conflictuelles, Géométrie interne, Origine, Axe horizontal, Axe vertical, Symétrie, Clone, Copie, Déplacer, Réseau rectangulaire, Supprimer l'alignement des axes, Supprimer tous les éléments de géométrie, Supprimer toutes les contraintes
- Outils B-spline : Degré de la B-spline, Polygone de contrôle de la B-spline, Peigne de courbure, Multiplicité des nœuds, Poids des points de contrôle, Convertir une géométrie en B-spline, Augmenter le degré, Diminuer le degré, Augmenter la multiplicité des nœuds, Diminuer la multiplicité des nœuds, Insérer un nœud, Joindre des courbes
- Espace virtuel : Espace virtuel
- Démarrer avec FreeCAD
- Installation : Téléchargements, Windows, Linux, Mac, Logiciels supplémentaires, Docker, AppImage, Ubuntu Snap
- Bases : À propos de FreeCAD, Interface, Navigation par la souris, Méthodes de sélection, Objet name, Préférences, Ateliers, Structure du document, Propriétés, Contribuer à FreeCAD, Faire un don
- Aide : Tutoriels, Tutoriels vidéo
- Ateliers : Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test, Web