Skip to content

TechDraw_SectionView.md

Latest commit

 

History

History
167 lines (96 loc) · 6.38 KB

TechDraw_SectionView.md

File metadata and controls

167 lines (96 loc) · 6.38 KB
Raw

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 → Insert Section View option from the menu.
  3. A task panel will open 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. Option {{Value|ANSI}} uses "pulling arrows" (known as the "traditional format" in some areas) and option {{Value|ISO}} 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.

The SectionView tool can be used in 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, 0.0, 1.0)

section = doc.addObject("TechDraw::DrawViewSection", "Section")
page.addView(section)
section.Source = box
section.BaseView = view
section.Direction = (0.0, 1.0, 0.0)
section.SectionNormal = (-1.0, 0.0, 0.0)

doc.recompute()

{{TechDraw Tools navi}}

documentation index > TechDraw > TechDraw SectionView