Curves Workbench Tools¶

Third-party addon — installation required

The Curves workbench is not included in FreeCAD. Install it via Tools → Addon Manager → search "Curves" → Install and restart FreeCAD.

Curve Tools¶

Tool	Command	Description
Parametric Line	`Curves_line`	Parametric line between two vertices
Gordon Profile	`gordon_profile`	Editable profile curve for Gordon surfaces
Mixed Curve	`mixed_curve`	3-D curve as intersection of two projected curves
Extend Curve	`extend`	Extend an edge by a given distance
Join Curves	`join`	Join selected edges into a single B-spline
Split Curve	`split`	Split an edge at one or more points
Discretize	`Discretize`	Sample an edge or wire into a point array
Approximate	`Approximate`	Approximate a point set to a NURBS curve or surface
Interpolate	`Interpolate`	Interpolate a NURBS curve through a point set
Blend Curve	`ParametricBlendCurve`	Blend curve between two edges with G1–G3 continuity
Comb Plot	`ParametricComb`	Visualise curvature as a comb on selected edges
Curve on Surface	`cos`	Create a curve constrained to lie on a surface

Tool	Command	Description
Trim Face	`Trim`	Trim a face with a projected curve
IsoCurve	`IsoCurve`	Extract iso-parameter curves from a face
Sketch on Surface	`SoS`	Map a sketch onto a curved surface
Map on Face	`Curves_MapOnFace`	Map objects onto a target face
Sweep 2 Rails	`sw2r`	Sweep a profile along two guide rails
Pipeshell	`pipeshell`	Pipeshell sweep with orientation control
Gordon Surface	`gordon`	Surface interpolating a network of crossing curves
Segment Surface	`segment_surface`	Divide a surface along iso-parameter lines
Multi-Loft	`MultiLoft`	Loft profiles composed of multiple faces
Blend Surface	`Curves_BlendSurf2`	Blend surface between two edges with continuity control
Blend Solid	`Curves_BlendSolid`	Blend solid between two faces
Flatten Face	`Curves_FlattenFace`	Unroll a conical or cylindrical face to a flat sheet
Rotation Sweep	`Curves_RotationSweep`	Sweep profiles around a centre point
Truncate / Extend	`Curve_TruncateExtendCmd`	Cut shape at plane and truncate or extend
Waterline Curves	`Curves_WaterlineCurves`	Generate horizontal waterline curves on a surface

Tool	Command	Description
Zebra Tool	`ZebraTool`	Zebra stripe continuity analysis
Reflect Lines	`ReflectLines`	Highlight reflection lines for a given view direction
Surface Analysis	`Curves_SurfaceAnalysis`	Colour map of surface curvature
Draft Analysis	`Curves_DraftAnalysis`	Colour map of draft angles for mould release
Geometry Info	`GeomInfo`	Show geometric properties of selected shapes
Adjacent Faces	`Curves_adjacent_faces`	Highlight faces adjacent to selected face
Extract Shapes	`extract`	Extract sub-shapes from a compound
Parametric Solid	`solid`	Create a solid from selected surfaces
To Console	`to_console`	Print shape properties to Python console
B-Spline to Console	`Curves_bspline_to_console`	Export B-spline control points to console