TechDraw ArchView

From FreeCAD Documentation

TechDraw ArchView

Menu location
TechDraw → Views From Other Workbenches → Insert Arch Workbench Object
TechDraw, Arch
Default shortcut
Introduced in version
See also
Arch Section Plane


The TechDraw ArchView tool inserts a view of an Arch SectionPlane on a TechDraw page.


  1. Select a single Arch section plane in the 3D view or Tree view.
  2. If there are multiple drawing pages in the document: optionally add the desired page to the selection by selecting it in the Tree view.
  3. There are several ways to invoke the tool:
    • Press the Insert Arch Workbench Object button.
    • Select the TechDraw → Views From Other Workbenches → Insert Arch Workbench Object option from the menu.
  4. If there are multiple drawing pages in the document and you have not yet selected a page, the Page Chooser dialog box opens: introduced in version 0.20
    1. Select the desired page.
    2. Press the OK button.


  • The Arch View is rendered by the Arch Workbench.
  • Draft Dimensions, Draft Texts and any other 2D (Sketch or Draft) object considered by the section plane is rendered "as is" (no intersection or hidden lines) on top of the solid geometry
  • The volume of Arch Spaces is not rendered, only the label will be rendered
  • Cut lines, projected lines (if Show Hidden property is set to True) and 2D lines above can be rendered with different line widths. This can be configured in the Arch preferences.
  • The ArchView has two rendering modes:
    • Wireframe, which uses the OpenCasCade algorithms of the TechDraw Workbench, is fast and produces only lines (no face fill possible)
    • Solid, which is based on the Painter's algorithm, and is capable of rendering faces filled with their shape color. However, it is much slower and can fail in many situations.
The image below illustrates the difference between the two rendering modes:
  • Only the base line of Arch Pipes is rendered, not the full volume of the tube:


The ArchView is rendered within the Arch Workbench, therefore TechDraw has limited control over its appearance. You may need to make changes within Arch to get the representation you want.


See also TechDraw View.


Arch view

  • DataSource (Link): The section plane object to be displayed.
  • DataAll On (Bool): If hidden objects must be shown or not. If false, only objects that are visible in the 3D view are rendered.
  • DataRender Mode (Enumeration): The render mode to use, Solid or Wireframe.
  • DataFill Spaces (Bool): If true, Arch Spaces are shown as a colored area.
  • DataShow Hidden (Bool): If the hidden geometry (the part of the geometry that lies behind the section plane) is shown or not. It will be rendered in dashed line, which can be configured in the Arch preferences.
  • DataShow Fill (Bool): If cut areas must be filled with a grey color or not.
  • DataLine Width (Float): The width of the main lines. Cut lines and projected/2D line widths ratios can be configured in the Arch preferences.
  • DataFont Size (Float): The size of all texts that appear in this view.
  • DataCut Line Width (Float): Width of the cut lines in this view.
  • DataJoin Arch (Bool): If true, walls and structures will be fused by material.


See also: Autogenerated API documentation and FreeCAD Scripting Basics.

The ArchView tool can be used in macros and from the Python console by using the following functions:

dv = FreeCAD.ActiveDocument.addObject('TechDraw::DrawViewArch','TestArch')
dv.Source = mySectionPlane
rc = page.addView(dv)