Настройки TechDraw
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Экран настроек модуля TechDraw находится в общем окне настроек (Меню Правка -> Параметры).
The preferences of the TechDraw Workbench are found in the Preferences Editor, Edit → Preferences → TechDraw.
All preferences settings with italic labels are default values for new drawing objects. They have no effect on existing objects.
General
Drawing Update
- Update With 3D: Whether or not pages are updated every time the 3D model is changed. This is a global policy setting.
- Allow Page Override: Whether or not a page's Keep Update property can override the global Update With 3D parameter. This is a global policy setting.
- Keep Page Up To Date: Keeps drawing pages in sync with changes of the 3D model in real time. This can slow down the response time.
- Auto-distribute Secondary Views: Automatically distributes secondary views for projection groups.
Colors
Setup of the default colors for new pages:
| Name | Description |
|---|---|
| Normal | Normal line color. |
| Preselected | Preselection color. The color that is used to highlight objects when hovering with the mouse over them. |
| Selected | Color for selected objects. |
| Background | Background color around pages. |
| Dimension | Color of dimension lines and text. |
| Centerline | Color for centerlines. |
| Detail Highlight | Line color for the outline shape of detail views. introduced in version 0.19 |
| Transparent Faces | If checked, object faces will be transparent. Otherwise the set color will be used for faces. introduced in version 0.19 |
| Hidden Line | Hidden line color. This color will be used for all kinds of hidden lines. |
| Section Face | Color of the section view cut surface. Only used if the setting Section Cut Surface is set to Solid Color. |
| Section Line | Color of the section view cut line. |
| Hatch | Hatch image color. |
| Geometric Hatch | Geometric hatch pattern color. |
| Vertex | Color of the selectable vertices in views. |
| Leaderline | Color for new leaderlines. |
Labels
- Label Font: The name of the default font for labels.
- Label Size: Default size for label text.
Files
- Default Template: Default template file for new pages.
- Template Directory: Starting directory for toolbar button
Insert Page using Template. - Hatch Pattern File: Default SVG or bitmap file for hatches.
- Line Group File: Alternate file for personal line group definitions.
- Welding Directory: Default directory for toolbar button
Add Welding Information to Leader. introduced in version 0.19 - PAT File: Default PAT pattern definition file for geometric hatches.
- Pattern Name: Name of the default PAT pattern.
Scale
Scale
- Page Scale: Default scale for new pages.
- View Scale Type: Default scale for new views.
- View Custom Scale: Default scale for views if View Scale Type is Custom.
Selection
- Edge Fuzz: Size of selection area around edges. The fuzz unit is approximately 0.1 mm, depending on your current zoom.
- Mark Fuzz: Selection area around center marks. The fuzz unit is approximately 0.1 mm, depending on your current zoom.
Size Adjustments
- Vertex Scale: Scale of vertex dots. Multiplier of line width.
- Center Mark Scale: Size of center marks. Multiplier of vertex size.
- Tolerance Text Scale: Tolerance font size adjustment. Multiplier of dimension Font Size.
- Template Edit Mark: Size of template field click handles in mm (green dots).
Dimensions
Dimensions
- Standard and Style: The standard to be used for dimensional values. The difference between the standards are shown in the image:
- Use Global Decimals: Use number of decimals from the general preferences.
- Show Units: Appends the unit (mm, in, etc.) to dimension values.
- Alternate Decimals: Number of decimals if Use Global Decimals is not used.
- Default Format: Custom format for dimension text. Uses the printf format specifier.
- Font Size: Font size for dimension text.
- Diameter Symbol: Character used to indicate diameter dimensions.
- Arrow Style: Arrowhead style for dimensions.
- Arrow Size: Arrowhead size of dimensions.
Annotation
- Section Line Standard: Standard to be used to draw section lines in section views.
- Section Line Style: Style for section lines.
- Section Cut Surface: Style for section cut surface. The options are: introduced in version 0.19
- Hide: There is no visible surface.
- Solid Color: The surface gets the color set for Section Face
- SVG Hatch: The surface is hatched.
- PAT Hatch: The surface is geometrically hatched.
- Line Group Name: Name of the default line group specification.
- Detail View Outline Shape: Outline shape for detail views.
- Detail Highlight Style: Line style of the outline shape for detail views. introduced in version 0.19
- Center Line Style: Default style for centerlines.
- Balloon Shape: Shape of balloon annotations.
- Balloon Leader End: Default style for balloon leader line ends.
- Balloon Leader Kink Length: Length of balloon leader line kink.
- Balloon Orthogonal Triangle: If Balloon Leader End is Filled Triangle, the triangle can only get a vertical or horizontal direction when the balloon is moved.
- Leader Line Auto Horizontal: Forces last leader line segment to be horizontal.
- Show Center Marks: Show arc center marks in views.
- Print Center Marks: Show arc centers in printed output.
Conventions
- Projection Group Angle: If projection groups will use either first- or third-angle projection. See multiview projection for an explanation.
- Hidden Line Style: The style to be used for hidden lines.
HLR Parameters
HLR stands for hidden line removal.
- Use Polygon Approximation: Uses an approximation to find hidden lines. This is fast, but the result is a collection of short straight lines.
- Show Hard Lines: Shows hard and outline edges (visible lines always shown)
- Show Smooth Lines: Shows smooth lines. A smooth line is a line indicating a change between tangent surfaces, as in the transition from a flat surface to a fillet.
- Show Seam Lines: Show seam lines. A seam line is a boundary between faces.
- Show UV ISO Lines: Shows ISO lines. ISO stands for isoparametric. Here is a description what isoparametric lines (in fact curves) are.
- ISO Count: The number of ISO lines per face edge.
Advanced
- Detect Faces: If checked, TechDraw will attempt to build faces using the line segments returned by the hidden line removal algorithm. Faces must be detected in order to use hatching, but there can be a performance penalty in complex models.
- Show Section Edges: Highlights the border of the section cut in section views.
- Debug Section: Dumps intermediate results during a Section view processing
- Debug Detail: Dumps intermediate results during a Detail view processing
- Allow Crazy Edges: Includes edges with unexpected geometry in results, e.g. zero lengths
- Fuse Before Section: Performs a fuse operation on the input shape(s) before Section view processing
- Show Loose 2D Geom: Includes 2D Objects in projections, e.g. loose sketches
- Line End Cap Shape: Setting of the line end cap shape. Explanation of the options: https://doc.qt.io/qt-5/qt.html#PenCapStyle-enum
- Max SVG Hatch Tiles: The limit of SVG tiles with a size of 64x64 pixels used to hatch a single face. For large scalings one might get an error about to many SVG tiles, then one needs to increase the tile limit.
- Max PAT Hatch Segments: The maximum hatch line segments used when hatching a face with a PAT pattern.
Hidden Settings
Note: Since FreeCAD 0.19, all settings are available in the Preferences dialogs. The following only applies for FreeCAD versions older than 0.19:
Some preference settings are only accessible through the Parameter editor, Tools → Edit parameters.
Preferences/Mod/TechDraw/Decorations
- CenterMarkScale: default scale factor for CenterMarks
- ShowCenterMarks: default True/False
- PrintCenterMarks: True/False show CenterMarks when printing introduced in version 0.19
Preferences/Mod/TechDraw/General
- DefaultScale: initial setting of Page Scale introduced in version 0.19
- EdgeFuzz: pick radius for Edges
- MarkFuzz: pick radius for CenterMarks
- SectionFuseFirst: fuse Source objects before performing Section cut
- EdgeEndCap: shape of Edge ends 0x00 FlatCap, 0x10 SquareCap, 0x20 RoundCap (Qt::PenCapStyle) introduced in version 0.19
Preferences/Mod/TechDraw/Format
- SectionFormat: section line style 0-ASME 1-ISO
Preferences/Mod/TechDraw/Standards
- RadiusAligned: Radius dimension format 0-ISO(aligned) 1-ASME(uniform)
TechDraw 
- Pages: New Default, New Pick
- Views: New View, New Projection Group, New Section, New Detail, New Annotation, New Draft, New Arch, Spreadsheet
- Clips: Clip, ClipPlus, ClipMinus
- Dimensions: New Length, New Horizontal, New Vertical, New Radius, New Diameter, New Angle, New Angle3Pt, New Links
- Decoration: Hatch Area, Geometric Hatch, New Symbol, New Image, Toggle Frames
- Utilities: SaveSVG, SaveDXF
- Additional: Preferences, Import-Export Preferences; Hatching, LineGroup, Templates; TechDraw API, TechDrawGui API
User documentation 
- Installation: Unix, Windows, Mac; Getting started
- Basics: About FreeCAD, Workbenches, Preferences, Document structure, Interface Customization, Properties, Mouse Model; Tutorials
- Workbenches: Arch, Draft, FEM, Image, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Plot, Points, Raytracing, Reverse Engineering, Robot, Ship, Sketcher, Spreadsheet, Start, Surface workbench, TechDraw, Test Framework, Web
- Scripting: Introduction to Python, FreeCAD scripting tutorial, FreeCAD Scripting Basics, How to install macros, Gui Command, Units Modules: Builtin modules, Workbench creation, Installing more workbenches Meshes: Mesh Scripting, Mesh Module Parts: The Part Module, Topological data scripting, PythonOCC, Mesh to Part Coin scenegraph: The Coin/Inventor scenegraph, Pivy Qt interface: PySide, Using the FreeCAD GUI, Dialog creation Parametric objects: Scripted objects Other: Code snippets, Line drawing function, Embedding FreeCAD, FreeCAD vector math library, Power users hub, Python, Macros, FreeCAD Scripting Basics, Topological data scripting
