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Revision as of 00:46, 4 February 2020

TechDraw Dimension Link

poziția meniului
TechDraw → Dimension Link
Ateliere
TechDraw
scurtătură
nici unul
Prezentat în versiune
-
A se vedea, de asemenea,
TechDraw NewView, TechDraw NewProjGroup

Descriere

Instrumentul Dimension Link crează o legătură între geometria 3D și 1 sau mai multe Dimensiuni pe o Pagină. Legătura permite Dimensiunii să utilizeze valorile 3D actuale în locul valorilor proiectate 2D.

The Dimension Link tool creates a link between 3D geometry and 1 or more existing projected Dimensions on a Page. This link allows the Dimension to use actual 3D values instead of 2D projected values.

The Dimension Link tool's most common use is in dimensioning isometric views in a ProjectionGroup. The projected length of an Edge in an isometric view will, of course, not necessarily equal the actual length of the Edge. In an orthogonal view the projected and actual lengths will be equal.

The Dimension Link instructs the Dimension to compute it's value directly from the 3D geometry.

Cum se folosește

  1. Creați Dimensiunea dvs. pe pagina de desen, ca de obicei.
  2. Selectați geometria (ex Edge) în vizualizarea modelului 3D care se potrivește dimensiunilor dvs..
  3. Apăsați butonul File:TechDraw Dimension Link.png Dimension Link
  4. Se va deschide un dialog. Selectați 1 sau mai multe Dimensiuni care să se lege la geometria 3D selectată.
  5. Apăsați "OK"
  1. Create an appropriate dimension on the drawing page using any of Dimension Length, Dimension Horizontal, etc. This dimension will be in the right place on the Page, but will show the projected dimension value.
  2. Select the geometry in the 3D view, for example, an edge, that corresponds to the projected geometry of your dimension.
  3. Press the Dimension Link button.
  4. A dialog will open. Select one or more Dimensions to be linked to the selected 3D geometry.
  5. Press OK.

After the link operation is completed the DateMeasureType property of the dimension changes from Projected to True.

Limitări

  1. Legăturile dimensionale sunt foarte sensibile la problema "Topological Naming". Se recomandă să conectați dimensiunile la unul din ultimii pași ai procesului dvs.
  2. Instrumentul Link nu vă împiedică să creați legături ilogice.
  3. În prezent, nu există nicio modalitate de rupere a unui link. Puteți redefini MeasureType înapoi la Projected și Dimensiunea va folosi valoarea proiectată în locul valorii efective.

Dimension objects are vulnerable to "topological naming" issues. See the information in the TechDraw Dimension Length tool for more information. It is recommended that linking dimensions be one of the last steps in your drawing process.

The link tool will not stop you from making illogical links, so you need to choose the correct edge from the 3D view when creating the link.

There is currently no way to break a link; you can change the DateMeasureType back to Projected so that the dimension will use the projected value instead of the linked value.

Note that if the Dimension to be linked is based on two vertices, you should select two vertices in the 3D view. Similarly if the Dimension is based on an edge, you should select an edge in the 3D view.

Proprietăți

  1. Proprietatea MeasureType a Dimensiunii legate a fi schimbată din "Projected" în "True".
  1. The MeasureType property of a linked Dimension will be changed from "Projected" to "True".

Script

Dimensiunile pot fi legate de geometria 3D folosind Python.

See also: TechDraw API and FreeCAD Scripting Basics.

The Dimension Link tool can be used in macros and from the Python console by using the following functions:

to be defined