Draft Dimension/de: Difference between revisions

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Das Werkzeug kann Kanten oder Linien messen, die direkt an festen Körpern befestigt sind; wenn sich der Körper ändert, aktualisiert sich die Dimension von selbst. Das Werkzeug kann auch einen Durchmesser oder Krümmungsradius messen, wie er beispielsweise durch einen [[Draft Arc|Draft Arc]] oder durch die Operationen [[Part Fillet|Part Fillet]], [[Sketcher CreateFillet|Sketcher CreateFillet]], und [[PartDesign Fillet|PartDesign Fillet]] erzeugt wird.
Das Werkzeug kann Kanten oder Linien messen, die direkt an festen Körpern befestigt sind; wenn sich der Körper ändert, aktualisiert sich die Dimension von selbst. Das Werkzeug kann auch einen Durchmesser oder Krümmungsradius messen, wie er beispielsweise durch einen [[Draft Arc|Draft Arc]] oder durch die Operationen [[Part Fillet|Part Fillet]], [[Sketcher CreateFillet|Sketcher CreateFillet]], und [[PartDesign Fillet|PartDesign Fillet]] erzeugt wird.
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[[Image:Screenshot_Draft_Dimension.jpg|400px]]
[[Image:Screenshot_Draft_Dimension.jpg|400px]]
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{{Caption|Durch drei Punkte definierte Bemaßung}}
{{Caption|Durch drei Punkte definierte Bemaßung}}
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==Usage==
==Usage==

See also: [[Draft_Tray|Draft Tray]], [[Draft_Snap|Draft Snap]] and [[Draft_Constrain|Draft Constrain]].

=== Linear dimension ===


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=== Radial dimension ===
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Die Bemaßung kann durch doppelklicken des Elements in der Baumansicht geändert werden oder durch drücken des
{{Button|[[Image:Draft Edit.svg|16px]] [[Draft Edit/de|Bearbeiten]]}}-Buttons. Dann kannst Du die Punkte an eine andere Position ziehen.
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# Optionally select a circular edge in the [[3D_view|3D view]].
Die Position der Messpunkte können nach der Erstellung durch Änderung der 'Start'- und 'End'-Eigenschaften verändert werden.
# There are several ways to invoke the command:
#* Press the {{Button|[[Image:Draft_Dimension.svg|16px]] [[Draft_Dimension|Draft Dimension]]}} button.
#* Select the {{MenuCommand|Annotation → [[Image:Draft_Dimension.svg|16px]] Dimension}} option from the menu.
#* Use the keyboard shortcut: {{KEY|D}} then {{KEY|I}}.
# The {{MenuCommand|Dimension}} task panel opens. See [[#Options|Options]] for more information.
# If you have not yet selected an edge do one of the following:
#* Press the {{Button|[[Image:view-select.svg|16px]] select edge}} button and select a circular edge in the [[3D_view|3D view]].
#* Hold down the {{KEY|Alt}} key, select a circular edge in the [[3D_view|3D view]] and release the {{KEY|Alt}} key.
# To position the dimension line do one of the following:
#* For a diameter dimension:
#** Pick a point in the [[3D_view|3D view]], or type [[Draft_Coordinates|coordinates]] and press the {{Button|[[Image:Draft_AddPoint.svg|16px]] Enter point}} button.
#* For a radial dimension:
#** Hold down the {{KEY|Shift}} key and pick a point in the [[3D_view|3D view]].


=== Angular dimension ===
Die Position der Bemaßungslinie kann nach der Erstellung durch Änderung der 'Direction'-Eigenschaft verändert werden.


# There are several ways to invoke the command:
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#* Press the {{Button|[[Image:Draft_Dimension.svg|16px]] [[Draft_Dimension|Draft Dimension]]}} button.
==Verfügbare Bemaßungsarten==
#* Select the {{MenuCommand|Annotation → [[Image:Draft_Dimension.svg|16px]] Dimension}} option from the menu.
Die 'Modifizierungs'-Tasten ({{KEY|Alt}} oder {{KEY|Shift}}) nach Auswahl eines Punkts oder einer Kante loslassen.
#* Use the keyboard shortcut: {{KEY|D}} then {{KEY|I}}.
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# The {{MenuCommand|Dimension}} task panel opens. See [[#Options|Options]] for more information.
# Hold down the {{KEY|Alt}} key, select two straight edges in the [[3D_view|3D view]] and release the {{KEY|Alt}} key.
# To position the dimension arc pick a point in the [[3D_view|3D view]].
# Depending on the edges and the picked point the displayed angle will be the acute (sharp) or obtuse (blunt) angle between the edges, or the angle of one of the edges with the horizontal. In some cases you may have to first add auxiliary geometry ([[Draft_Line|Draft Lines]] for example) to get a particular angle.


==Options==
* Linear dimensions: hold the {{KEY|Alt}} key, or click on the {{Button|[[Image:view-select.svg|16px]] select edge}} button, and pick a straight edge, then pick a second point to draw the dimension line parallel to that edge.
:{{emphasis|Note:}} you can also pre-select the edge before calling the tool.
* Horizontal and vertical dimensions: pick one point, then pick a second point, then hold the {{KEY|Shift}} key and move the pointer horizontally or vertically, then pick a third point to draw the dimension line parallel to either the X axis or the Y axis.
:{{emphasis|Note 1:}} click and hold {{KEY|Shift}} and move the pointer in different directions many times until the dimension line aligns to the desired axis. Clicking {{KEY|Shift}} while the pointer is far from the first point will usually align the dimension to the X axis; if the pointer is close to the first point it will usually align the dimension to the Y axis.
:{{emphasis|Note 2:}} instead of picking two points, pick an edge while holding {{KEY|Alt}}.
* Diameter dimensions: hold the {{KEY|Alt}} key and pick a curved edge, then pick a second point to draw the dimension line.
** Radius dimensions: hold the {{KEY|Alt}} key and pick a curved edge, then hold the {{KEY|Shift}} key and pick a second point to draw the dimension line.
* Angular dimensions: hold the {{KEY|Alt}} key and then pick two straight edges, then pick a point between the two edges to show the acute or obtuse angle, or elsewhere to show a supplementary or explementary angle.
:{{Emphasis|Note:}} the displayed angle largely depends on the original position of the selected edges. If you would like to display a particular angle, you may have to add auxiliary [[Draft Line|Draft Line]]s that extend from the original edges, and measure these extensions.


The single character keyboard shortcuts available in the task panel can be changed. See [[Draft_Preferences|Draft Preferences]]. The shortcuts mentioned here are the default shortcuts.
{{Emphasis|Note:}} by pre-selecting an edge, or by picking it with {{KEY|Alt}} or {{Button|[[Image:view-select.svg|16px]] select edge}}, the dimension will become {{emphasis|parametric}}, that is, it will remember which edge it is bound to. If the endpoints of that edge move later on, the dimension will follow them, and adjust the displayed measurement.

==Options==


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* Wenn eine Kante vor dem Beginn des Bemaßungsbefehl gewählt wird, ist die erstellte Bemaßung ebenfalls '''parametrisch'''.
* Wenn eine Kante vor dem Beginn des Bemaßungsbefehl gewählt wird, ist die erstellte Bemaßung ebenfalls '''parametrisch'''.
* Die Richtung der Bemaßung kann später durch Anpassung der "Direction"-Eigenschaft verändert werden.
* Die Richtung der Bemaßung kann später durch Anpassung der "Direction"-Eigenschaft verändert werden.
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==Notes==

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Die Bemaßung kann durch doppelklicken des Elements in der Baumansicht geändert werden oder durch drücken des
{{Button|[[Image:Draft Edit.svg|16px]] [[Draft Edit/de|Bearbeiten]]}}-Buttons. Dann kannst Du die Punkte an eine andere Position ziehen.
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See also: [[property_editor|Property editor]].
=== Data ===

* {{PropertyData|Start}}: specifies the start point of the distance to measure.
A Draft Dimension object is derived from an [[App_FeaturePython|App FeaturePython]] object and inherits all its properties. The following properties are additional unless otherwise stated:
* {{PropertyData|End}}: specified the end point of the distance to measure.

* {{PropertyData|Dimline}}: specifies a point through which the dimension line must pass.
=== Data linear and radial dimension ===
* {{PropertyData|Distance}}: (read-only) indicates the measured length.

* {{PropertyData|Diameter}}: if it is {{TRUE}} it displays a diameter dimension; otherwise it displays a radius dimension; this property only works if the dimension is attached to a circular arc.
{{TitleProperty|Dimension}}

* {{PropertyData|Dimline|VectorDistance}}: specifies the point through which the dimension line passes.
* {{PropertyData|Linked Geometry|LinkSubList}}: specifies the object and its subelement(s) the dimension is linked to.
* {{PropertyData|Normal|Vector}}: specifies the normal of the plane of the text.
* {{PropertyData|Support|Link|hidden}}: specifies the measured object.

{{TitleProperty|Linear/radial dimension}}

* {{PropertyData|Direction|Vector}}: specifies the direction of the measurement.
* {{PropertyData|Distance|Length}}: (read-only) specifies the value of the measurement.
* {{PropertyData|End|VectorDistance}}: specifies the end point of the measurement.
* {{PropertyData|Start|VectorDistance}}: specifies the start point of the measurement.

{{TitleProperty|Radial dimension}}

* {{PropertyData|Diameter|Bool}}: specifies if a radial dimension is displayed as a diameter dimension. If it changed the symbol used in {{PropertyView|Override}} must be updated manually (from {{Value|Ø}} to {{Value|R}} or vice versa). Not used for linear dimensions.

=== Data angular dimension ===

{{TitleProperty|Angular dimension}}

* {{PropertyData|Angle|Angle}}: (read-only) specifies the value of the measurement.
* {{PropertyData|Center|VectorDistance}}: specifies the center of the measurement.
* {{PropertyData|First Angle|Angle}}: specifies the start angle of the measurement.
* {{PropertyData|Last Angle|Angle}}: specifies the end angle of the measurement.

{{TitleProperty|Dimension}}

* {{PropertyData|Dimline|VectorDistance}}: specifies the point through which the dimension arc passes.
* {{PropertyData|Linked Geometry|LinkSubList|hidden}}: not used.
* {{PropertyData|Normal|Vector|hidden}}: specifies the normal of the plane of the dimension.
* {{PropertyData|Support|Link|hidden}}: not used.


=== View ===
=== View ===

* {{PropertyView|Ext Lines}}: specifies the maximum length of the extension lines that go from the measurement points to the dimension line.
{{TitleProperty|Annotation}}
* {{PropertyView|Ext Overshoot}}: specifies the additional length of the extension lines beyond the dimension line.

* {{PropertyView|Dim Overshoot}}: specifies the additional length added to the dimension line.
* {{PropertyView|Arrow Size}}: specifies the size of the symbol displayed at the ends of the dimension line.
* {{PropertyView|Annotation Style|Enumeration}}: specifies the annotation style applied to the dimension. See [[Draft_AnnotationStyleEditor|Draft AnnotationStyleEditor]].
* {{PropertyView|Arrow Type}}: specifies the type of symbol displayed at the ends of the dimension line, which can be "Dot", "Circle", "Arrow", or "Tick".
* {{PropertyView|Scale Multiplier|Float}}: specifies the general scaling factor applied to the dimension.

* {{PropertyView|Flip Arrows}}: specifies whether to flip the orientation of the symbols at the ends of the dimension line; it only works if these symbols are arrows.
{{TitleProperty|Display Options}}
* {{PropertyView|Font Name}}: specifies the font to use to draw the text. It can be a font name, such as "Arial", a default style such as "sans", "serif" or "mono", a family such as "Arial,Helvetica,sans" or a name with a style such as "Arial:Bold". If the given font is not found on the system, a generic one is used instead.

* {{PropertyView|Font Size}}: specifies the size of the letters. If the dimension object is created in the tree view but no text is visible, increase the size of the text until it is visible.
* {{PropertyView|Display Mode|Enumeration}}: specifies how the text is displayed. If it is {{value|2D text}} the text will be displayed in a plane defined by the {{PropertyData|Normal}} of the measurement. If it is {{value|3D text}} the text will always face the camera. Note that these values are switched compared to [[Draft_Text|Draft Texts]]. This is an inherited property.
* {{PropertyView|Flip Text}}: specifies whether to flip the orientation of the text indicating the measurement.

* {{PropertyView|Text Position}}: specifies the position of the text in absolute coordinates, referred to the origin (0,0,0); leave this property at its default value (0,0,0) to display the text next to the dimension line.
{{TitleProperty|Graphics}}
* {{PropertyView|Text Spacing}}: specifies the space between the text and the dimension line.

* {{PropertyView|Override}}: specifies a custom text to display instead of the actual measurement. Use the string {{incode|$dim}} inside the text to display the measurement value.
* {{PropertyView|Decimals}}: specifies the number of decimal places to display on the measurement.
* {{PropertyView|Arrow Size|Length}}: specifies the size of the symbols displayed at the ends of the dimension line or arc.
* {{PropertyView|Arrow Type|Enumeration}}: specifies the type of symbol displayed at the ends of the dimension line or arc, which can be {{value|Dot}}, {{value|Circle}}, {{value|Arrow}}, {{value|Tick}} or {{value|Tick-2}}.
* {{PropertyView|Show Unit}}: if it is {{TRUE}} the unit is displayed next to numerical value of the measurement.
* {{PropertyView|Unit Override}}: specifies a unit in which to express the measurement, for example, "km", "m", "cm", "mm", "mi", "ft", "in"; leave this property blank to use the default units. {{Version|0.17}}
* {{PropertyView|Dim Overshoot|Distance}}: specifies the additional length added to the dimension line. Not used for angular dimensions.
* {{PropertyView|Ext Lines|Distance}}: specifies the maximum length of the extension lines that go from the measured points to the dimension line. Not used for angular dimensions.
* {{PropertyView|Ext Overshoot|Distance}}: specifies the additional length of the extension lines beyond the dimension line. Not used for angular dimensions.
* {{PropertyView|Flip Arrows|Bool}}: specifies whether to flip the orientation of the symbols at the ends of the dimension line or arc. Only works if the symbols are arrows.
* {{PropertyView|Line Color|Color}}: specifies the color of the dimension including the text.
* {{PropertyView|Line Width|Float}}: specifies the width of the lines or arc belonging to the dimension.
* {{PropertyView|Show Line|Bool}}: specifies whether to display the dimension line. Does not affect the display of extension lines and overshoots. Not used for angular dimensions.

{{TitleProperty|Text}}

* {{PropertyView|Flip Text|Bool}}: specifies whether to flip the orientation of the text.
* {{PropertyView|Font Name|Font}}: specifies the font used to draw the text. It can be a font name, such as {{value|Arial}}, a default style such as {{value|sans}}, {{value|serif}} or {{value|mono}}, a family such as {{value|Arial,Helvetica,sans}}, or a name with a style such as {{value|Arial:Bold}}. If the given font is not found on the system, a default font is used instead.
* {{PropertyView|Font Size|Length}}: specifies the size of the letters. The text can be invisible in the [[3D_view|3D view]] if this value is very small.
* {{PropertyView|Override|String}}: specifies a custom text to display instead of the actual measurement. Use the string {{value|$dim}} inside the text to include the measurement.
* {{PropertyView|Text Position|VectorDistance}}: specifies the position of the text in absolute coordinates. {{Value|[0, 0, 0]}} will display the text in its default position near the dimension line or arc.
* {{PropertyView|Text Spacing|Length}}: specifies the space between the text and the dimension line or arc.

{{TitleProperty|Units}}

* {{PropertyView|Decimals|Integer}}: specifies the number of decimal places to display for the measurement. Not used for angular dimensions.
* {{PropertyView|Show Unit|Bool}}: specifies whether to display the unit next to the numerical value of the measurement. Not used for angular dimensions.
* {{PropertyView|Unit Override|String}}: specifies the unit in which to express the measurement, for example, {{value|km}}, {{value|m}}, {{value|cm}}, {{value|mm}}, {{value|mi}}, {{value|ft}}, {{value|in}} or {{value|arch}} for arch units. Leave this blank to use the default unit. Not used for angular dimensions.

==Scripting==


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To create a Draft Dimension use the {{incode|make_dimension}} method ({{Version|0.19}}) of the Draft module. This method replaces the deprecated {{incode|makeDimension}} method.
The Dimension tool can be used in [[macros|macros]] and from the [[Python|Python]] console by using the following function:

{{Code|code=
{{Code|code=
Dimension = makeDimension(p1, p2, p3=None, p4=None)}}
dimension = make_dimension(p1, p2, p3=None, p4=None)}}

There are various ways to invoke this function, depending on the arguments passed to it:
There are various ways to invoke this method, depending on the arguments passed to it:

{{Code|code=
{{Code|code=
Dimension = makeDimension(p1, p2, p3=None)
dimension = make_dimension(p1, p2, p3=None)
Dimension = makeDimension(object, i1, i2, p4=None)
dimension = make_dimension(object, i1, i2, p4=None)
Dimension = makeDimension(object, i1, mode, p4=None)
dimension = make_dimension(object, i1, mode, p4=None)
}}
}}


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To create an angular dimension use the following function:
To create an angular dimension use the following method:

{{Code|code=
{{Code|code=
Dimension = makeAngularDimension(center, angles, p3, normal=None)
dimension = make_angular_dimension(center, angles, p3, normal=None)
Dimension = makeAngularDimension(center, [angle1, angle2], p3, normal=None)
dimension = make_angular_dimension(center, [angle1, angle2], p3, normal=None)
}}
}}


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The view properties of {{incode|Dimension}} can be changed by overwriting its attributes; for example, overwrite {{incode|ViewObject.FontSize}} with the new size in millimeters.
The view properties of {{incode|dimension}} can be changed by overwriting its attributes; for example, overwrite {{incode|ViewObject.FontSize}} with the new size in millimeters.


Beispiel:
Beispiel:

{{Code|code=
{{Code|code=
import math, FreeCAD, Draft
import FreeCAD as App
import Draft


doc = App.newDocument()
p1 = FreeCAD.Vector(0, 0, 0)
p2 = FreeCAD.Vector(1000, 1000, 0)
p3 = FreeCAD.Vector(-2500, 0, 0)
Dimension1 = Draft.makeDimension(p1, p2, p3)
Dimension1.ViewObject.FontSize = 200


p1 = App.Vector(0, 0, 0)
Polygon = Draft.makePolygon(3, radius=1000)
p4 = FreeCAD.Vector(-2000, 1500, 0)
p2 = App.Vector(1000, 1000, 0)
p3 = App.Vector(-2500, 0, 0)
Dimension2 = Draft.makeDimension(Polygon, 1, 2, p4)
dimension1 = Draft.make_dimension(p1, p2, p3)
Dimension2.ViewObject.FontSize = 200
dimension1.ViewObject.FontSize = 200


polygon = Draft.make_polygon(3, radius=1000)
center = FreeCAD.Vector(2000, 0, 0)
doc.recompute()
p5 = FreeCAD.Vector(3000, 1000, 0)
angle1 = math.radians(45)
angle2 = math.radians(10)
Dimension3 = Draft.makeAngularDimension(center, [angle1, angle2], p5)
Dimension3.ViewObject.FontSize = 200


p4 = App.Vector(-2000, 1500, 0)
Dimension4 = Draft.makeAngularDimension(center, [angle2, angle1], p5*1.2)
dimension2 = Draft.make_dimension(polygon, 1, 2, p4)
Dimension4.ViewObject.FontSize = 200
dimension2.ViewObject.FontSize = 200

center = App.Vector(2000, 0, 0)
p5 = App.Vector(3000, 1000, 0)
angle1 = 45
angle2 = 10
dimension3 = Draft.make_angular_dimension(center, [angle1, angle2], p5)
dimension3.ViewObject.FontSize = 200

dimension4 = Draft.make_angular_dimension(center, [angle2, angle1], p5*1.2)
dimension4.ViewObject.FontSize = 200

doc.recompute()
}}
}}


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==Verknüpfungen (links)==
* Tutorial: [http://www.youtube.com/watch?v=nxNT0KychcY Projektbemaßung auf einer Zeichnungsseite]
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Revision as of 11:28, 4 May 2021

Entwurf Bemaßung

Menüeintrag
Entwurf → Bemaßung
Arbeitsbereich
Draft, Arch
Standardtastenkürzel
D I
Eingeführt in Version
0.8
Siehe auch
BemaßungKippenTechDraw Arbeitsbereich

Beschreibung

Das Entwurf Bemaßungs Werkzeug erstellt ein Objekt, das den Abstand zwischen zwei Punkten misst und anzeigt; ein dritter Punkt gibt die Position der Bemaßungslinie an.

Das Werkzeug kann Kanten oder Linien messen, die direkt an festen Körpern befestigt sind; wenn sich der Körper ändert, aktualisiert sich die Dimension von selbst. Das Werkzeug kann auch einen Durchmesser oder Krümmungsradius messen, wie er beispielsweise durch einen Draft Arc oder durch die Operationen Part Fillet, Sketcher CreateFillet, und PartDesign Fillet erzeugt wird.

Die resultierende Größe wird in der 3D-Ansicht angezeigt und als Zeichenobjekt behandelt. Das Zeichenobjekt kann auf einer TechDraw Workbench-Seite angezeigt werden, in dem man die Neue Draft-Ansicht- oder TechDraw Neuer Bogen-Werkzeuge verwendet. Alternativ hat TechDraw seine eigenen Werkzeuge, um Größen anzuzeigen, wie z.B. TechDraw Längenbemaßung und TechDraw Radiusbemaßung. Diese Tools sind jedoch für die Bereitung technischer Zeichnungen gedacht, wodurch sie die Größen nur auf der Zeichenfläche und nicht in der 3D-Ansicht generieren.

Durch drei Punkte definierte Bemaßung

Usage

See also: Draft Tray, Draft Snap and Draft Constrain.

Linear dimension

Verwendung

  1. Die Schaltfläche Draft-Dimension klicken oder die Tasten D und dann I betätigen.
  2. Einen Punkt in der 3D-Ansicht anklicken oder eine Koordinate eingeben und die Schaltfläche Punkt hinzufügen drücken.
  3. Einen zweiten Punkt in der 3D-Ansicht anklicken oder eine Koordinate eingeben und die Schaltfläche Punkt hinzufügen drücken. Die ersten beiden Punkte den zu messenden Abstand.
  4. Einen dritten Punkt in der 3D-Ansicht anklicken oder eine Koordinate eingeben und die Schaltfläche Punkt hinzufügen drücken. Der letzte Punkt definiert die Position der Bemaßungslinie.

Radial dimension

  1. Optionally select a circular edge in the 3D view.
  2. There are several ways to invoke the command:
    • Press the Draft Dimension button.
    • Select the Annotation → Dimension option from the menu.
    • Use the keyboard shortcut: D then I.
  3. The Dimension task panel opens. See Options for more information.
  4. If you have not yet selected an edge do one of the following:
    • Press the select edge button and select a circular edge in the 3D view.
    • Hold down the Alt key, select a circular edge in the 3D view and release the Alt key.
  5. To position the dimension line do one of the following:
    • For a diameter dimension:
    • For a radial dimension:
      • Hold down the Shift key and pick a point in the 3D view.

Angular dimension

  1. There are several ways to invoke the command:
    • Press the Draft Dimension button.
    • Select the Annotation → Dimension option from the menu.
    • Use the keyboard shortcut: D then I.
  2. The Dimension task panel opens. See Options for more information.
  3. Hold down the Alt key, select two straight edges in the 3D view and release the Alt key.
  4. To position the dimension arc pick a point in the 3D view.
  5. Depending on the edges and the picked point the displayed angle will be the acute (sharp) or obtuse (blunt) angle between the edges, or the angle of one of the edges with the horizontal. In some cases you may have to first add auxiliary geometry (Draft Lines for example) to get a particular angle.

Options

The single character keyboard shortcuts available in the task panel can be changed. See Draft Preferences. The shortcuts mentioned here are the default shortcuts.

Optionen

  • Drücke die Taste X, Y oder Z nach einem Punkt, um den nächsten Punkt auf die entsprechende Achse festzulegen.
  • Um Koordinaten von Hand einzugeben, tippe einfach die Zahlen gefolgt von ENTER zwischen der X-, Y- und Z-Komponente.
  • Drücken von CTRL während des Zeichnens lässt snapping Deinen Punkt bei der nächsten Rastposition einschnappen, unabhängig vom Abstand.
  • Halten von SHIFT legt constrain die Maßlinie in horizontaler oder vertikaler Richtung fest oder wechselt zwischen Radius und Durchmesser, falls an einem Kreisbogen gearbeitet wird.
  • Tippe auf R oder klicke in das Kontrollkästchen, um den Relativ Modus ein- oder abzuschalten. Wenn der Relativmodus ausgewählt ist, sind die Koordinaten des nächsten Punktes relativ zum vorherigen Punkt. Ansonsten sind die Koordinaten absolute zum Ursprung (0,0,0) des Koordinatensystems.
  • Drücke T oder klicke das Kontrollkästchen neben Nächstes, um es zu de/aktivieren. Bei aktiviertem Nächstes-Modus kannst Du fortlaufende Bemaßungen zeichnen, eine nach der anderen, die die gleichen Basislinie haben.
  • Drücke ESC oder den Abbrechen-Button, um den aktuelle Linien-Befehl abzubrechen.
  • Anstatt Messpunkte einzugeben, wird durch Auswahl einer existierenden Kante mit Alt die Bemaßung parametrisch und merkt sich, mit welcher Kante sie verbunden ist. Wenn sich die Endpunkte der Kante später verschieben, folgt ihnen die Bemaßung.
  • Wenn eine Kante vor dem Beginn des Bemaßungsbefehl gewählt wird, ist die erstellte Bemaßung ebenfalls parametrisch.
  • Die Richtung der Bemaßung kann später durch Anpassung der "Direction"-Eigenschaft verändert werden.

Notes

Die Bemaßung kann durch doppelklicken des Elements in der Baumansicht geändert werden oder durch drücken des Bearbeiten-Buttons. Dann kannst Du die Punkte an eine andere Position ziehen.

Eigenschaften

  • DatenStart: Der Startpunkt des zu messenden Abstands
  • DatenEnd: Der Endpunkt des zu messenden Abstands
  • DatenDimline: Ein Punkt, durch den die Maßlinie verlaufen muss
  • AnsichtDisplay Mode: Gibt an, ob der Text an den Maßlinien ausgerichtet ist, oder immer dem Blickpunkt folgt
  • AnsichtFont Size: Die Größe der Zeichen
  • AnsichtExt Lines: Die Größe der Erweiterungslinie (zwischen den Messpunkten und der Maßlinie)
  • AnsichtText Position: Kann benutzt werden, um die Textanzeige an einer bestimmten Position zu erzwingen
  • AnsichtText Spacing: Gibt den Platz zwischen Text und Maßlinie an
  • AnsichtOverride: Zeigt einen Text anstatt des Maßes an. Füge "$dim" in den Text ein, um das Maß anzuzeigen
  • AnsichtFont Name: Die Schriftart für den anzuzeigenden Text. Es kann ein Schriftartennamen sein, wie "Arial", ein Schriftstil wie "sans", "serif" oder "mono" oder eine Familie wie "Arial,Helvetica,sans" oder ein Name mit einem Schriftstil wie "Arial:Bold". Wenn die angegebene Schriftart nicht auf dem System gefunden wird, wird eine generische benutzt.
  • AnsichtArrow Type: Der Typ des zu benutzenden Pfeils
  • AnsichtArrow Size: Die Größe der Pfeile
  • AnsichtDecimals: Die Anzahl der anzuzeigenden Dezimalstellen der Bemaßung
  • AnsichtFlip Arrows: Vertauschen der Richtung der Pfeile
  • AnsichtUnit Override: Drückt den Abstand in der angegebenen Einheit aus (falls leer, wird die Einheit des Systems (system unit) verwendet) introduced in version 0.17

See also: Property editor.

A Draft Dimension object is derived from an App FeaturePython object and inherits all its properties. The following properties are additional unless otherwise stated:

Data linear and radial dimension

Dimension

  • DatenDimline (VectorDistance): specifies the point through which the dimension line passes.
  • DatenLinked Geometry (LinkSubList): specifies the object and its subelement(s) the dimension is linked to.
  • DatenNormal (Vector): specifies the normal of the plane of the text.
  • Daten (hidden)Support (Link): specifies the measured object.

Linear/radial dimension

  • DatenDirection (Vector): specifies the direction of the measurement.
  • DatenDistance (Length): (read-only) specifies the value of the measurement.
  • DatenEnd (VectorDistance): specifies the end point of the measurement.
  • DatenStart (VectorDistance): specifies the start point of the measurement.

Radial dimension

  • DatenDiameter (Bool): specifies if a radial dimension is displayed as a diameter dimension. If it changed the symbol used in AnsichtOverride must be updated manually (from Ø to R or vice versa). Not used for linear dimensions.

Data angular dimension

Angular dimension

  • DatenAngle (Angle): (read-only) specifies the value of the measurement.
  • DatenCenter (VectorDistance): specifies the center of the measurement.
  • DatenFirst Angle (Angle): specifies the start angle of the measurement.
  • DatenLast Angle (Angle): specifies the end angle of the measurement.

Dimension

  • DatenDimline (VectorDistance): specifies the point through which the dimension arc passes.
  • Daten (hidden)Linked Geometry (LinkSubList): not used.
  • Daten (hidden)Normal (Vector): specifies the normal of the plane of the dimension.
  • Daten (hidden)Support (Link): not used.

View

Annotation

  • AnsichtAnnotation Style (Enumeration): specifies the annotation style applied to the dimension. See Draft AnnotationStyleEditor.
  • AnsichtScale Multiplier (Float): specifies the general scaling factor applied to the dimension.

Display Options

  • AnsichtDisplay Mode (Enumeration): specifies how the text is displayed. If it is 2D text the text will be displayed in a plane defined by the DatenNormal of the measurement. If it is 3D text the text will always face the camera. Note that these values are switched compared to Draft Texts. This is an inherited property.

Graphics

  • AnsichtArrow Size (Length): specifies the size of the symbols displayed at the ends of the dimension line or arc.
  • AnsichtArrow Type (Enumeration): specifies the type of symbol displayed at the ends of the dimension line or arc, which can be Dot, Circle, Arrow, Tick or Tick-2.
  • AnsichtDim Overshoot (Distance): specifies the additional length added to the dimension line. Not used for angular dimensions.
  • AnsichtExt Lines (Distance): specifies the maximum length of the extension lines that go from the measured points to the dimension line. Not used for angular dimensions.
  • AnsichtExt Overshoot (Distance): specifies the additional length of the extension lines beyond the dimension line. Not used for angular dimensions.
  • AnsichtFlip Arrows (Bool): specifies whether to flip the orientation of the symbols at the ends of the dimension line or arc. Only works if the symbols are arrows.
  • AnsichtLine Color (Color): specifies the color of the dimension including the text.
  • AnsichtLine Width (Float): specifies the width of the lines or arc belonging to the dimension.
  • AnsichtShow Line (Bool): specifies whether to display the dimension line. Does not affect the display of extension lines and overshoots. Not used for angular dimensions.

Text

  • AnsichtFlip Text (Bool): specifies whether to flip the orientation of the text.
  • AnsichtFont Name (Font): specifies the font used to draw the text. It can be a font name, such as Arial, a default style such as sans, serif or mono, a family such as Arial,Helvetica,sans, or a name with a style such as Arial:Bold. If the given font is not found on the system, a default font is used instead.
  • AnsichtFont Size (Length): specifies the size of the letters. The text can be invisible in the 3D view if this value is very small.
  • AnsichtOverride (String): specifies a custom text to display instead of the actual measurement. Use the string $dim inside the text to include the measurement.
  • AnsichtText Position (VectorDistance): specifies the position of the text in absolute coordinates. [0, 0, 0] will display the text in its default position near the dimension line or arc.
  • AnsichtText Spacing (Length): specifies the space between the text and the dimension line or arc.

Units

  • AnsichtDecimals (Integer): specifies the number of decimal places to display for the measurement. Not used for angular dimensions.
  • AnsichtShow Unit (Bool): specifies whether to display the unit next to the numerical value of the measurement. Not used for angular dimensions.
  • AnsichtUnit Override (String): specifies the unit in which to express the measurement, for example, km, m, cm, mm, mi, ft, in or arch for arch units. Leave this blank to use the default unit. Not used for angular dimensions.

Scripting

Scripting

Siehe auch: Draft API und FreeCAD Scripting Basics.

To create a Draft Dimension use the make_dimension method (introduced in version 0.19) of the Draft module. This method replaces the deprecated makeDimension method.

dimension = make_dimension(p1, p2, p3=None, p4=None)

There are various ways to invoke this method, depending on the arguments passed to it:

dimension = make_dimension(p1, p2, p3=None)
dimension = make_dimension(object, i1, i2, p4=None)
dimension = make_dimension(object, i1, mode, p4=None)
  • Erstellt ein Bemaßungs-Objekt mit der Bemaßungslinie durch p3.
  • Das Bemaßungs-Objekt übernimmt die in der Befehlszeile (command bar) gesetzte Linienbreite und -farbe.
  • Es gibt viele Wege zur Erstellung einer Bemaßung, abhängig von den übergebenen Argumenten:
  1. (p1,p2,p3): erstellt eine Standardbemaßung von p1 bis p2.
  2. (Objekt,i1,i2,p3): erstellt eine verbundene Bemaßung zum angegebenen Objekt, mit dem Abstand zwischen den Kanten i1 und i2.
  3. (Objekt,i1,Modus,p3): erstellt eine verbundene Bemaßung zum angegebenen Objekt, i1 ist der Index der zu messenden (gebogenen) Kante und Modus ist entweder "radius" oder "diameter". Liefert das neu erstellte Objekt zurück.

To create an angular dimension use the following method:

dimension = make_angular_dimension(center, angles, p3, normal=None)
dimension = make_angular_dimension(center, [angle1, angle2], p3, normal=None)
  • erstellt eine Winkelbemaßung vom angegebenen Mittelpunkt mit den angegebenen Winkeln durch den Punkt p3.
  • liefert das neu erstellte Objekt zurück.

The view properties of dimension can be changed by overwriting its attributes; for example, overwrite ViewObject.FontSize with the new size in millimeters.

Beispiel:

import FreeCAD as App
import Draft

doc = App.newDocument()

p1 = App.Vector(0, 0, 0)
p2 = App.Vector(1000, 1000, 0)
p3 = App.Vector(-2500, 0, 0)
dimension1 = Draft.make_dimension(p1, p2, p3)
dimension1.ViewObject.FontSize = 200

polygon = Draft.make_polygon(3, radius=1000)
doc.recompute()

p4 = App.Vector(-2000, 1500, 0)
dimension2 = Draft.make_dimension(polygon, 1, 2, p4)
dimension2.ViewObject.FontSize = 200

center = App.Vector(2000, 0, 0)
p5 = App.Vector(3000, 1000, 0)
angle1 = 45
angle2 = 10
dimension3 = Draft.make_angular_dimension(center, [angle1, angle2], p5)
dimension3.ViewObject.FontSize = 200

dimension4 = Draft.make_angular_dimension(center, [angle2, angle1], p5*1.2)
dimension4.ViewObject.FontSize = 200

doc.recompute()