TechDraw ProjectionGroup
|
|
| Menu location |
|---|
| TechDraw → Insert Projection Group |
| Workbenches |
| TechDraw |
| Default shortcut |
| None |
| Introduced in version |
| - |
| See also |
| TechDraw View, TechDraw Section View |
Description
The 
ProjectionGroup tool creates a multiview projection of one or more 3D objects. The isometric views of the 4 front corners can also be included.
If you only want to produce a single view, there is no advantage in using ProjectionGroup; you should then use Insert View instead. If you do not wish to use the traditional first- / third-angle projection, you should use multiple Views (Insert View) instead of ProjectionGroup.
Three orthogonal views and one isometric view of a solid object
Usage
- Select one or more Body and/or Part objects in the 3D window or tree. If you have multiple drawing pages in your document, you will also need to select the desired page in the tree.
- Press the
Insert Projection Group button. - A dialog will open in which you can select which views should appear in the group, the group's scale and other parameters:
Projection Group task panel. The central field indicates the current view direction with percentages of the x, y and z-axes.
After you created the Projection Group you can move the group as a whole by dragging the central view. You can also move the projection views by dragging.
Properties
- DataAnchor: The central view in the group. Normally the Front view.
- DataProjectionType: "First Angle" or Third Angle".
- DataAutoDistribute: If true, space out individual views automatically. Use false to position manually.
- DataspacingX: Horizontal space between views when automatically positioned. Note that Scale and the size of other views in the group also influence the spacing.
- DataspacingY: Vertical space between views when automatically positioned.
The ProjectionGroup as a whole inherits X, Y, ScaleType, Scale and Rotation from the basic View.
Individual Views within the group inherit all part view properties, but the ProjectionGroup object controls the scale of all its member Views.
The RotationVector property of individual Views within the group is deprecated as of v0.19. Use XDirection instead.
Note that the central box displays the current projection direction of the primary view. It cannot be used to change the direction.
Scripting
See also: TechDraw API and FreeCAD Scripting Basics.
The NewProjGroup tool can be used in macros and from the Python console. A full script is available in the Source distribution in "source-dir/src/Mod/TechDraw/TDTest/DProjGroupTest.py".
#make a page
print("making a page")
page = FreeCAD.ActiveDocument.addObject('TechDraw::DrawPage','Page')
FreeCAD.ActiveDocument.addObject('TechDraw::DrawSVGTemplate','Template')
FreeCAD.ActiveDocument.Template.Template = templateFileSpec
FreeCAD.ActiveDocument.Page.Template = FreeCAD.ActiveDocument.Template
#make projection group
group = FreeCAD.ActiveDocument.addObject('TechDraw::DrawProjGroup','ProjGroup')
rc = page.addView(group)
group.Source = [fusion]
#add Front(Anchor) view
frontView = group.addProjection("Front") ##need an Anchor
#update group
group.Anchor.Direction = FreeCAD.Vector(0,0,1)
group.Anchor.RotationVector = FreeCAD.Vector(1,0,0)
#add more projections
leftView = group.addProjection("Left")
topView = group.addProjection("Top")
rightView = group.addProjection("Right")
rearView = group.addProjection("Rear")
BottomView = group.addProjection("Bottom")
#remove a view from projection group
iv = group.removeProjection("Left")
Programming note: The Projection Group should always be added to the Page (ex. page.addView(group) before adding projections to the Group. This allows the Projection Group to use default parameter values derived from the parent page.
TechDraw
- Pages: Insert Default Page, Insert Page using Template, Redraw Page
- Views: Insert View, Insert Active View, Insert Projection Group, Insert Section View, Insert Detail View, Insert Draft Workbench Object, Insert Arch Workbench Object, Insert Spreadsheet View
- Clips: Insert Clip Group, Add View to Clip Group, Remove View from Clip Group
- Decorations: Hatch Face using Image File, Apply Geometric Hatch to Face, Insert SVG Symbol, Insert Bitmap Image, Turn View Frames On/Off
- Dimensions: Insert Length Dimension, Insert Horizontal Dimension, Insert Vertical Dimension, Insert Radius Dimension, Insert Diameter Dimension, Insert Angle Dimension, Insert 3-Point Angle Dimension, Insert Horizontal Extent Dimension, Insert Vertical Extent Dimension, Link Dimension to 3D Geometry, Insert Balloon Annotation, Insert Landmark Dimension
- Annotations: Insert Annotation, Add Leaderline to View, Insert Rich Text Annotation, Add Cosmetic Vertex, Add Midpoint Vertices, Add Quadrant Vertices, Add Centerline to Faces, Add Centerline between 2 Lines, Add Centerline between 2 Points, Add Cosmetic Line Through 2 points, Remove Cosmetic Object, Change Appearance of Lines, Show/Hide Invisible Edges, Add Welding Information to Leader
- Extensions: Draw circle centerlines, Cosmetic thread hole side view, Cosmetic thread bolt side view, Cosmetic thread hole bottom view, Cosmetic thread bolt bottom view
- Export: Export Page as SVG, Export Page as DXF
- Additional: LineGroup, Templates, Hatching, Geometric dimensioning and tolerancing, Preferences
User documentation
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Arch, Draft, FEM, Image, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Points, Raytracing, Reverse Engineering, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web
- Deprecated or unmaintained workbenches: Complete, Drawing, Robot
- Hubs: User hub, Power users hub, Developer hub
