Sketcher CreateArcOfEllipse/de: Difference between revisions
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Revision as of 21:40, 13 December 2020
Sketcher Ellipsen-Bogens |
Menüeintrag |
---|
Sketch → Skizzengeometrien → Erstellen eines Ellipsen-Bogens |
Arbeitsbereich |
Sketcher |
Standardtastenkürzel |
Keiner |
Eingeführt in Version |
0.15 |
Siehe auch |
Sketcher Ellipse durche Angabe des Zentrums, Sketcher Bogen aus Mittelpunkt |
Description
This tool draws an arc of ellipse by picking four points: the center, the end of major radius, the start point and the end point. When starting the tool, the mouse pointer changes to a white cross with a red ellipse arc icon. Besides are coordinates shown in real time.
The sequence of clicks is indicated by yellow arrows with numbers. C is the center, a - major diameter, b - minor diameter, F1, F2 are foci.
Usage
- Press the Arc of ellipse button.
- First click in 3D view sets ellipse center. Second click sets the first radius and orientation of the ellipse. Third click sets the other radius and the start of the arc. The fourth click sets the end of the arc.
- After the fourth click, the arc of ellipse is created, together with a set of construction geometry aligned to it (major diameter, minor diameter, two foci). The construction geometry can be manually deleted if not needed, and recreated later. See Internal Alignment Constraint and Sketcher Show Hide Internal Geometry.
- Pressing ESC or clicking the right mouse button cancels the function.
Peculiarities
- Major and minor axes of underlying ellipse are strict and cannot be swapped by resizing. The underlying ellipse must be rotated to swap the axes.
- Unlike ellipse that can be constrained to become a circle, ellipse arc cannot represent an arc of circle.
- Moving the arc of ellipse by edge is the same as moving ellipse's center.
Sketcher
(FIXME)
- Die Werkzeuge: Skizze erstellen, Skizze bearbeiten, Skizze verlassen, Skizze anzeigen, View section, Skizze einer Fläche zuordnen..., Reorient sketch, Skizze überprüfen, Skizzen zusammenführen, Skizze spiegeln
- Skizzen-Geometrien: Punkt, Linie, Bögen erstellen, Bogen, Kreisbogen durch drei Punkte, Kreise erstellen, Kreis, Kreis durch drei Punkte, Kegelförmige Körper erstellen, Ellipse mit Mittelpunkt, Ellipse durch drei Punkte, Ellipsenbogen, Hyperbel erstellen, Parabel erstellen, B-splines erstellen, B-spline, Create periodic B-spline, Linienzug (Mehrpunktlinie), Rechteck, Reguläres Polygon erstellen, Dreieck, Quadrat, Fünfeck, Sechseck, Siebeneck, Achteck, Create Regular Polygon, Nut, Abrundung erstellen, Kante zuschneiden, Verlängern, Externe Geometrie, CarbonCopy, Konstruktionsmodus
- Skizzenbeschränkungen
- Geometrische Beschränkungen Koinzidenz erzwingen, Punkt auf Objekt festlegen, Vertikal, Horizontal, Parallel, Orthogonal, Tangente, Gleichheit, Symmetrisch, Constrain Block
- Dimensional constraints Sperren, Horizontaler Abstand, Vertikaler Abstand, Distanz festlegen, Radius festlegen, Winkel festlegen, Snell's Law, Umschalten auf steuernde Bemaßung,
- Sketcher tools Select solver DOFs, Close Shape, Connect Edges, Select Constraints, Select Origin, Select Vertical Axis, Select Horizontal Axis, Select Redundant Constraints, Select Conflicting Constraints, Select Elements Associated with constraints, Show/Hide internal geometry, Symmetry, Clone, Copy, Move, Rectangular Array, Delete All Geometry, Delete All Constraints
- Sketcher B-spline tools Show/Hide B-spline degree, Show/Hide B-spline control polygon, Show/Hide B-spline curvature comb, Show/Hide B-spline knot multiplicity, Convert Geometry to B-spline, Increase degree, Increase knot multiplicity, Decrease knot multiplicity
- Sketcher virtual space Switch Virtual Space
Anwenderdokumentation
- Erste Schritte
- Installation: Herunterladen, Windows, Linux, Mac, Zusätzlicher Komponenten, Docker, AppImage, Ubuntu Snap
- Grundlagen: Über FreeCAD, Graphische Oberfläche, Mausbedienung, Auswahlmethoden, Objektname, Programmeinstellungen, Arbeitsbereiche, Dokumentstruktur, Objekteigenschaften, Hilf FreeCAD, Spende
- Hilfe: Tutorien, Video Tutorien
- Arbeitsbereiche: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework