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TechDraw_SectionView.md

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GuiCommand
Name MenuLocation Workbenches SeeAlso
TechDraw SectionView
TechDraw , TechDraw Views , Insert Section View
TechDraw_Workbench
TechDraw_ComplexSection, TechDraw_View, TechDraw_ProjectionGroup

TechDraw SectionView

Description

The TechDraw SectionView tool inserts a cross-section view based on an existing part view.

*Sectioning an already placed view, which shows the internal holes and a hatched cut surface.
The top image shows the ANSI arrow format.
The bottom image shows the ISO arrow format. *

Usage

  1. Select a part view in the 3D view or Tree view.
  2. There are several ways to invoke the tool:
    • Press the Insert Section View button.
    • Select the TechDraw → TechDraw Views → Insert Section View option from the menu.
  3. A task panel opens which will help calculate the various properties. Reasonable values for the view Direction are calculated, but these can be changed.

Taskview to define the sectional cut of a view

Properties Section View

See also TechDraw View.

Data

{{TitleProperty|Cut Operation}}

  • Fuse Before Cut|Bool: Fuse the source shapes before performing the section cut.

  • Trim After Cut|Bool: Additionally trim the resulting shape after the section cut to remove any unwanted pieces.

{{TitleProperty|Cut Surface Format}}

  • Cut Surface Display|Enumeration: Appearance of the cut surface. Options:
-   
    {{Value|Hide}}
    
    : Hides the cut surface, only the outline will be displayed.

-   
    {{Value|Color}}
    
    : Colors the cut surface using the setting of **Cut Surface Color** in the [TechDraw preferences](TechDraw_Preferences.md).

-   
    {{Value|SvgHatch}}
    
    : Hatches the section cut using a [hatch](TechDraw_Hatch.md)

-   
    {{Value|PatHatch}}
    
    : Hatches the section cut using a [geometric hatch](TechDraw_GeometricHatch.md)

  • File Hatch Pattern|File: Full path to SVG hatch pattern file.

  • File Geom Pattern|File: Full path to PAT pattern file.

  • Svg Included|FileIncluded: Full path to the included SVG hatch pattern file.

  • Pat Included|FileIncluded: Full path to the included PAT pattern file.

  • Name Geom Pattern|String: Name of the PAT pattern to use.

  • Hatch Scale|Float: Hatch pattern size adjustment.

{{TitleProperty|Section}}

  • Section Symbol|String: The identifier for this section.

  • Base View|Link: The view on which this section is based.

  • Section Normal|Vector: A vector describing the direction normal to the cutting plane.

  • Section Origin|Vector: A vector describing a point on the cutting plane. Typically the centroid of the original part.

  • Section Direction|Enumeration: The direction in the Base View for this section. Options: {{Value|Aligned}}, {{Value|Right}}, {{Value|Left}}, {{Value|Up}} or {{Value|Down}}.

View

{{TitleProperty|Cut Surface}}

  • Cut Surface Color|Color: Solid color for surface highlight. Used if Cut Surface Display is set to {{Value|Color}}.

  • Show Cut Surface|Bool|Hidden: Show/hide the cut surface.

{{TitleProperty|Surface Hatch}}

  • Geom Hatch Color|Color: The color of the Geometric hath pattern.

  • Hatch Color|Color: The color of the Svg hatch pattern.

  • Hatch Cut Surface|Bool|Hidden: Hatch the cut surface.

  • Weight Pattern|Float: Line weight of the Geometric hatch pattern.

Properties Base View

A Section view inherits all applicable properties of the view specified as Base View. In the properties of this view you can change the appearance of the section line:

  • Section Line Color: The section line color.

  • Section Line Style: The section line style.

The default settings for these parameters are set via the settings Section Line and Section Line Style in the TechDraw preferences.

Notes

  • Section Line Format: two section line formats are supported (as depicted above) and controlled by the Preference setting "Section Line Standard" on the Annotation tab. The {{Value|ANSI}} option uses "pulling arrows" (known as the "traditional format" in some areas) and the {{Value|ISO}} option uses "pushing arrows" (also known as the "reference arrow format").
  • Fuse Before Cut: the section operation sometimes fails to cut the source shapes. If Fuse Before Cut is true, the source shapes are merged into a single shape before the section operation is attempted. If you encounter problems with the section operation, try flipping this value.
  • Trim After Cut: the section cut operation sometimes leaves behind a portion of the source shape. If Trim After Cut is true, an additional cut operation is performed on the result of the first cut which should remove any unwanted pieces.
  • Cut Surface Display: the cut surface can be hidden, painted in a solid color, hatched using an Svg pattern (default) or hatched using a PAT pattern. See Hatching.

Scripting

See also: Autogenerated API documentation and FreeCAD Scripting Basics.

A SectionView can be created with macros and from the Python console by using the following functions:

doc = FreeCAD.ActiveDocument
box = doc.Box
page = doc.Page

view = doc.addObject("TechDraw::DrawViewPart", "View")
page.addView(view)
view.Source = box
view.Direction = (0, 0, 1)

section = doc.addObject("TechDraw::DrawViewSection", "Section")
page.addView(section)
section.Source = box
section.BaseView = view
section.Direction = (0, 1, 0)
section.SectionNormal = (-1, 0, 0)

doc.recompute()

Examples

For some more information about section views and some use cases, have a look at: TechDraw section examples.

{{TechDraw Tools navi}}

⏵ documentation index > TechDraw > TechDraw SectionView