Draft Dimension/es

Text

Label

Draft

Draft Dimension
Ubicación en el Menú
Croquis → Cotas
Entornos de trabajo
Croquis, Arquitectura
Atajo de teclado por defecto
D I
Introducido en versión
-
Ver también
FlipDimension

Description

Descripción

La herramienta cotas crea una cota en el documento actual con dos puntos definiendo la distancia a medir, y un tercer punto especificando por donde pasa la línea de cota.

Linear dimensions based on edges and radial dimensions are parametric. This means that they will update if the measured edge is modified. Measured edges can belong to Draft objects but also to solid bodies. Angular dimensions are not parametric.

Draft Dimensions can be displayed on a TechDraw Workbench page using the TechDraw DraftView or TechDraw ArchView commands. Alternatively the TechDraw Workbench offer its own dimension commands. But these create dimensions that are only displayed on the drawing page and not in the 3D view.

Create

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

Usage linear dimension

Utilización

1. Presiona el botón cota, o presiona las teclas D y I
2. Designa un punto en la vista 3D, o escribe unas coordenadas
3. Designa un segundo punto en la vista 3D, o escribe unas coordenadas
4. Designa un tercer punto en la vista 3D, o escribe unas coordenadas

Usage 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 E or 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:
     • Pick a point in the 3D view, or type coordinates and press the Enter point button.
   • For a radial dimension:
     • Hold down the Shift key and pick a point in the 3D view.

Usage 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. Do one of the following:
   • Press E or the Select edge button and select a first straight edge in the 3D view. Repeat this to select a second straight edge.
   • 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. The displayed angle depends on the edges and the picked point.

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 (for version 0.22).

Opciones

• Presiona X, Y o Z después de un punto para restringir el punto siguiente sobre el eje indicado.
• Para introducir coordenadas manualmente, simplemente introduce los números y presiona ENTER entre cada componente X, Y y Z.
• Presiona CTRL mientras dibujas para forzar el ajuste de tu punto a la ubicación de ajuste más cercana, independientemente de la distancia.
• Presionando SHIFT se realizará una restricción de la cota horizontal o verticalmente, o, cuando se trabaja con un segmento circular, conmuta entre los modos de radio y diámetro.
• Presiona R o selecciona la casilla para activar/desactivar el botón Relativas. Si el modo relativas está activada, las coordenadas del siguiente punto son relativas al anterior. Si no, son absolutas, tomadas desde el origen de coordenadas (0,0,0).
• Presiona T o selecciona la casilla para activar/desactivar el botón Continuar. Si el modo continuar está activado, podrás dibujar cotas continuas, una tras otra, que comparten la misma línea base.
• Presiona ESC o el botón Cancelar para abortar el comando actual.
• Seleccionando una arista existente con ALT, en lugar de introducir puntos de medición, la cota se convertirá en paramétrica y recordará a que arista está vinculada. Si los puntos finales de la arista se mueven posteriormente, la cota los seguirá.
• Si se selecciona un borde antes de iniciar el comando Dimensión, la dimensión creada también será 'paramétrica' .
• La dirección de la dimensión se puede cambiar luego, modificando su propiedad "Dirección"

Convert

Usage

1. Select one or more Std MeasureDistance objects.
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. Each selected object is replaced by a non-parametric linear Draft Dimension.

Notes

• Linear and radial Draft Dimensions can be edited with the Draft Edit command.
• Draft Dimensions created or saved with FreeCAD version 0.21 are not backward compatible.

Propiedades

• DATOSStart: El punto inicial de la distancia a medir
• DATOSEnd: El punto final de la distancia a medir
• DATOSDimline: Un punto por el cual debe pasar la línea de cota
• VISTADisplay Mode: Especifica si el texto está alineado con las líneas de cota o si siempre mira hacia la cámara
• VISTAFont Size: El tamaño de las letras
• VISTAExt Lines: El tamaño de las líneas de extensión (entre los puntos de medición y la línea de cota)
• VISTAText Position: Puede utilizarse para forzar que el texto se muestre en determinada posición
• VISTAOverride: Especifica un texto a mostrar en lugar de la medición. Utiliza la palabra "$dim", dentro del texto, para mostrar la medición
• VISTAFont Name: La fuente a utilizar para dibujar el texto. Puede ser un nombre de fuente, como "Arial", un estilo por defecto como "sans", "serif" o "mono", o una familia como "Arial,Helvetica,sans" o un nombre con un estilo como "Arial:Bold". Si la fuente indicada no se encuentra en el sistema, se utilizará una genérica en su lugar.
• VISTAArrow Type: el tipo de flecha para usar
• VISTAArrow Size: el tamaño de las flechas
• VISTADecimals: la cantidad de lugares decimales que se mostrarán en la dimensión
• VISTAFlip Arrows: invierte la orientación de las flechas
• VISTAUnit Override: Expresa la distancia en la unidad dada (déjelo en blanco para usar la unidad del sistema) introducido en la versión 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

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

Linear/radial dimension

• DatosDirection (Vector): specifies the direction of the measurement.
• DatosDistance (Length): (read-only) specifies the value of the measurement.
• DatosEnd (VectorDistance): specifies the end point of the measurement.
• DatosStart (VectorDistance): specifies the start point of the measurement.

Radial dimension

• DatosDiameter (Bool): specifies if a radial dimension is displayed as a diameter dimension. Not used for linear dimensions.

Data angular dimension

Angular dimension

• DatosAngle (Angle): (read-only) specifies the value of the measurement.
• DatosCenter (VectorDistance): specifies the center of the measurement.
• DatosFirst Angle (Angle): specifies the start angle of the measurement.
• DatosLast Angle (Angle): specifies the end angle of the measurement.

Dimension

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

View

Annotation

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

Display Options

• VistaDisplay Mode (Enumeration): specifies how the text is displayed. If it is World the text will be displayed on a plane defined by the DatosNormal of the measurement. If it is Screen the text will always face the screen. This is an inherited property. The mentioned options are the renamed options (introduced in version 0.21).

Graphics

• VistaArrow Size (Length): specifies the size of the symbols displayed at the ends of the dimension line or arc.
• VistaArrow 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.
• VistaDim Overshoot (Distance): specifies the additional length added to the dimension line. Not used for angular dimensions.
• VistaExt Lines (Distance): specifies the length of the extension lines that go from the dimension line to the measured points. Use 0 for full extension lines. A negative value defines the gap between the ends of the extension lines and the measured points. A positive value defines the maximum length of the extension lines. Only used for linear dimensions.
• VistaExt Overshoot (Distance): specifies the additional length of the extension lines beyond the dimension line. Not used for angular dimensions.
• VistaFlip 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.
• VistaLine Color (Color): specifies the color of the dimension line or arc, and the arrows.
• VistaLine Width (Float): specifies the width of the lines or arc belonging to the dimension.
• VistaShow 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

• VistaFlip Text (Bool): specifies whether to flip the orientation of the text.
• VistaFont 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.
• VistaFont Size (Length): specifies the size of the letters. The text can be invisible in the 3D view if this value is very small.
• VistaOverride (String): specifies a custom text to display instead of the actual measurement. Use the string $dim inside the text to include the measurement.
• VistaText Color (Color): specifies the color of the text. introduced in version 0.21
• VistaText 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.
• VistaText Spacing (Length): specifies the space between the text and the dimension line or arc.

Units

• VistaDecimals (Integer): specifies the number of decimal places to display for the measurement.
• VistaShow Unit (Bool): specifies whether to display the unit next to the numerical value of the measurement. Not used for angular dimensions.
• VistaUnit 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

Archivos de guión

La herramienta cotas se puede utilizar en macros y desde la consola de Python utilizando la siguientes funciones:

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)

• Crea un objeto cota con la línea de cota pasando por p3.
• El objeto Dimension toma el Draft Linewidth and Color establecido en la barra de comandos.
• Existen varias formas de crear una cota, dependiendo de los argumentos que les pases:

1. (p1,p2,p3): crea una cota estándar desde p1 hasta p2.
2. (object,i1,i2,p3): crea una cota vinculada a los objetos dados, midiendo la distancia entre sus vértices indexados i1 e i2.
3. (object,i1,mode,p3): crea una cota vinculada al objeto actual, i1 es el índice de la arista (curvada) a medir, y mode es tanto el "radio" como el "diámetro". Devuelve el objeto recién creado.

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)

crea una cota angular desde el centro indicado, con la lista dada de ángulos, pasando por p3. Devuelve el objeto recién creado.

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

Ejemplo:

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()

Text

Label

Draft

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