TechDraw Preferences

The preferences screen of the TechDraw Workbench are found in the Preferences Editor,.

There are two tabs: TechDraw General and TechDraw Dimensions.

General

 * Projection Angle: will use either first- or third-angle projection. See multiview projection for an explanation.
 * Hidden Line: The style (solid, dashed, etc.) to be used for hidden lines.
 * 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, but there can be a performance penalty in complex models.
 * Show Section Edges: Highlights the border of the section cut in.
 * AutoDistribute Secondary Views: Automatically distributes secondary views for.

Drawing Updates

 * Update with 3D: Controls whether or not Pages are updated every time the 3D model is changed. This is a global policy setting.
 * Allow Page Override: Controls whether or not a Page's 'KeepUpdate' property can override the system wide 'Update with 3D' parameter. This is a global policy setting.
 * Keep Page Up to Date: Keeps the drawing pages in sync with the 3D model in real time. This can slow the response time.

Colors
you can set your preferred colors here.

Labels

 * Label Font: the name of the default font for Labels.
 * Label Size: default size (mm) for label text.
 * Template dot size: green unit dot size in units

Files

 * Default Template: use this file chooser to select a default Template file for your drawings.
 * Template Directory: the starting directory for.
 * Hatch Image: default SVG or bitmap file for.
 * LineGroup File: Alternate file for personal LineGroup definitions.
 * Welding Directory: Alternate directory for Welding Svg files.
 * PAT File: default PAT pattern definition file for.
 * Pattern Name: the name of your favourite PAT pattern.

Dimensions

 * Show Units: append the unit specifier (mm, in, etc.) to values.
 * Use Global Decimals: use the number of decimal positions from Preferences → General → Units.
 * Alternate Decimals: if Use Global Decimals is unticked, use this number of decimal positions.
 * Format Spec: formats dimension text. Uses printf format specifier.
 * Font Size: size for Dimension Text.
 * Color: default color for Dimension text and lines.
 * Diameter Symbol: diameter dimensions will be prefixed by this text.
 * Arrow Style: choose the dimension line end mark you prefer.
 * Arrow Size: size of end mark in mm.
 * Dimensioning Standard and Style: default value for ISO/ASME style Dimensions.

Decorations

 * Line Group: the name of default line group specification.
 * Matting Style: show as circles or rectangles.
 * Center Line Style: default style for View center lines (horizontal and vertical).
 * Center Line Color: default color for View center lines.
 * Section Line Style: default style for section line in the Base View of.
 * Section Line Color: default color for section lines.
 * Hatch Weight: default line thickness for . See.
 * Vertex Color: default color for Vertices.
 * Vertex Scale: adjustment for Vertex size on drawings.

Hidden Settings
Some preference settings are only accessible through the Parameter editor,.

Preferences/Mod/TechDraw/Decorations

 * CenterMarkScale: default scale factor for CenterMarks
 * ShowCenterMarks: default true/false
 * PrintCenterMarks: true/false show CenterMarks when printing (>= v0.19)

Preferences/Mod/TechDraw/General

 * DefaultScale: initial setting of Page Scale
 * 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)

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)