TechDraw "Связать размер с 3D геометрией"
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| Системное название |
|---|
| TechDraw_LinkDimension |
| Расположение в меню |
| TechDraw → Размеры → Связать размер с 3D геометрией |
| Верстаки |
| TechDraw |
| Быстрые клавиши |
| Нет |
| Представлено в версии |
| - |
| См. также |
| Вставить Вид, Вставить группу проекций |
Описание
The Link Dimension tool creates a link between 3D geometry and one or more existing projected Dimensions on a Page. This link allows the Dimension to use actual 3D values instead of 2D projected values.
The Link Dimension 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 link instructs the Dimension to compute it's value directly from the 3D geometry.
Применение
- Create an appropriate dimension on the drawing page using any of TechDraw LengthDimensionh, TechDraw HorizontalDimension, etc. This dimension will be in the right place on the Page, but will show the projected dimension value.
- Select the geometry in the 3D view, for example, an edge, that corresponds to the projected geometry of your dimension.
- Press the
Link Dimension button. - A dialog will open. Select one or more Dimensions to be linked to the selected 3D geometry.
- Press OK.
After the link operation is completed the ДанныеMeasureType property of the dimension changes from Projected to True.
Ограничения
Dimension objects are vulnerable to the "topological naming problem". See TechDraw LengthDimension 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 ДанныеMeasureType 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.
Свойства
- The MeasureType property of a linked Dimension will be changed from "Projected" to "True".
Программирование
См. так же: TechDraw API и Основы составления скриптов FreeCAD.
The Link Dimension tool can be used in macros and from the Python console by using the following functions:
to be defined
TechDraw
- Pages: Insert Default Page, Insert Page using Template, Redraw Page
- Views: Insert View, Insert Active View, Insert Projection Group, Insert Section View, Insert Detail View, Insert Draft Workbench Object, Insert Arch Workbench Object, Insert Spreadsheet View
- Clips: Insert Clip Group, Add View to Clip Group, Remove View from Clip Group
- Dimensions: Insert Length Dimension, Insert Horizontal Dimension, Insert Vertical Dimension, Insert Radius Dimension, Insert Diameter Dimension, Insert Angle Dimension, Insert 3-Point Angle Dimension, Insert Horizontal Extent Dimension, Insert Vertical Extent Dimension, Link Dimension to 3D Geometry, Insert Balloon Annotation, Insert Landmark Dimension
- Decorations: Hatch Face using Image File, Apply Geometric Hatch to Face, Insert SVG Symbol, Insert Bitmap Image, Turn View Frames On/Off
- Annotations: Insert Annotation, Add Leaderline to View, Insert Rich Text Annotation, Add Cosmetic Vertex, Add Midpoint Vertices, Add Quadrant Vertices, Add Centerline to Faces, Add Centerline between 2 Lines, Add Centerline between 2 Points, Add Cosmetic Line Through 2 points, Remove Cosmetic Object, Change Appearance of Lines, Show/Hide Invisible Edges, Add Welding Information to Leader
- Import/Export: Export Page as SVG, Export Page as DXF
- Additional: LineGroup, Templates, Hatching, Geometric dimensioning and tolerancing, Preferences
Документация пользователя
- Начинающим
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- Помощь: Учебники, Видео учебники
- Верстаки: Std Base, Arch, Draft, FEM, Image, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Points, Raytracing, Reverse Engineering, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web
- Не рекомендуемые верстаки: Complete, Drawing, Robot
