Curve

Six groups, left to right. A button with a submenu is followed by the commands it opens.

Draw

• PointA point object at a picked location.
• MultipleSeveral point objects in one go, one per click.
• ExtractPoint objects at the control points or vertices of an object.
• Closest PointA point on an object closest to a picked location.
• Closest Point Between Two ObjectsPoints at the closest locations between two objects.
• Mark Curve StartA point object at the start of a curve.
• Mark Curve EndA point object at the end of a curve.
• Divide By LengthPoints along a curve spaced at a set length.
• Divide By SegmentsPoints dividing a curve into a set number of segments.
• LineA straight line segment between two points.
• PolylineConnected straight segments drawn as one curve.
• From MidpointA line drawn outwards from its midpoint in both directions.
• Normal To SurfaceA line standing perpendicular to a surface at a picked point.
• BisectorA line splitting the angle between two directions in half.
• Vertical To CPlaneA line straight up from the construction plane.
• AngledA line at a set angle from a base direction.
• Perpendicular From CurveA line leaving a curve at a right angle.
• Perpendicular To 2 CurvesA line perpendicular to two curves at once.
• Tangent From CurveA line leaving a curve along its tangent.
• Tangent To 2 CurvesA line tangent to two curves.
• Tangent, PerpendicularA line tangent to one curve and perpendicular to another.
• CurveA freeform curve through picked points.
• Control PointsA freeform curve shaped by control points, not through them.
• Control Points From PolylineA control-point curve using a polyline's vertices.
• Handle CurveA curve edited by tangent handles at each point.
• SketchA freehand curve traced by dragging the mouse.
• Sketch On SurfaceA freehand curve traced directly on a surface.
• Sketch On MeshA freehand curve traced directly on a mesh.
• Interpolate On SurfaceA curve through points picked on a surface, lying on it.
• ConicA conic curve from a start, end, apex and rho value.
• Conic: Tangent At StartA conic curve that starts tangent to an existing curve.
• Parabola From 3 PointsA parabola through a vertex and two end points.
• Parabola By FocusA parabola from its focus, vertex and direction.
• HyperbolaA hyperbola from a centre, foci or vertices.
• CatenaryA hanging-chain curve between two points.
• SpiralA flat or 3D spiral with set turns, pitch and radii.
• HelixA coiled curve with set turns, pitch and radius.
• WavesA wavy curve following a reference curve.
• CrossA cross-shaped outline with set width, height and thickness.
• Infinite CurveA construction line long enough to behave as infinite.
• ArcA circular arc from a centre, start and end.
• Start, End, Point On ArcAn arc through a start, an end and a point on the arc.
• Start, End, Direction At StartAn arc from a start, an end and the direction at the start.
• Start, End, RadiusAn arc from a start, an end and a radius.
• Tangent To CurvesAn arc tangent to two existing curves.
• CircleA circle from a centre and radius.
• DiameterA circle from the two ends of its diameter.
• By 3 PointsA circle through three picked points.
• Around CurveA circle perpendicular to a curve, centred on it.
• Tangent, Tangent, RadiusA circle tangent to two curves with a set radius.
• Tangent 3 CurvesA circle tangent to three curves.
• Vertical CPlane: CenterA circle upright to the construction plane, from a centre.
• Vertical CPlane: DiameterA circle upright to the construction plane, from a diameter.
• DeformableA circle built as an editable freeform curve.
• Fit PointsA circle best fitted to a set of points.
• RectangleA rectangle from two opposite corners.
• Center, CornerA rectangle from its centre and one corner.
• 3 PointsA rectangle from one edge and a third point for width.
• Rounded RectangleA rectangle with rounded corners.
• VerticalA rectangle upright to the construction plane.
• EllipseAn ellipse from a centre and two axes.
• DiameterAn ellipse from the two ends of one axis and the other.
• From FociAn ellipse from its two focus points.
• Around CurveAn ellipse perpendicular to a curve, centred on it.
• By CornersAn ellipse fitted inside a box from two corners.
• DeformableAn ellipse built as an editable freeform curve.
• PolygonA regular polygon; also draws squares and stars.
• Circumscribed PolygonA polygon whose edges touch a circle of the given radius.
• Polygon: By EdgeA regular polygon from the length of one edge.
• SquareA square from its centre and a corner.
• Circumscribed SquareA square whose sides touch a circle of the given radius.
• Square: EdgeA square from the length of one edge.
• StarA star with a set number of points and two radii.
• Advanced CurveA curve built point by point, with symmetry and offset options.
• From 2 ViewsBuilds a 3D curve from two planar views of it.
• Cross SectionCross-section profiles through a set of shape curves.
• BlendA free-form transition between the ends of two curves.
• CPlaneMoves the construction plane.

Sketch and reference

• AssetsYour library of reusable profile curves.
• TextDraws flat text as curves.
• Raster to VectorTraces an image into editable curves.
• Add SketchesTop, front and side sketches placed on a reference cube.
• Text on CurveFlows text along a curve you pick.
• Add Picture FramePlaces a reference image on a plane.

Trim and join

• TrimRemoves the part of a curve on one side of a cutting object.
• JoinJoins two or more curves end to end into one.
• Join CopyJoins curves into one and keeps the originals.
• Auto JoinJoins every curve in the file that meets end to end.
• SplitSplits a curve at picked points or intersections.
• ExplodeBreaks a polycurve into its individual segments.

Edit

• FilletRounds the corner between two curves.
• Fillet CornersRounds every corner of a polycurve at once.
• SymmetryMirrors one half of a curve onto the other about an axis.
• ContinueExtends a curve from an endpoint, matching tangency.
• ChamferBevels the corner between two curves.
• ConnectExtends or trims two curves so they meet.
• MatchMatches position, tangency or curvature at a shared curve end.
• OffsetCopies a curve at a set distance from the original.
• Offset On SurfaceOffsets a curve along a surface, staying on it.
• Normal To SurfaceOffsets a curve away from a surface along its normals.
• MultipleSeveral offset copies of a curve at once.
• ExtendLengthens a curve past its endpoint.
• To BoundaryExtends a curve until it meets a boundary object.
• Extend On SurfaceExtends a curve along the surface it lies on.
• TweenInterpolates one or more curves between two existing curves.

From objects

• ProjectProjects a curve onto a surface or mesh along the view direction.
• Fit Curve to SurfaceReshapes a curve to sit on a surface.
• Dup. EdgeDuplicates the edge of a surface or polysurface as a curve.
• Extract IsocurveExtracts an isocurve from a surface.
• Duplicate Face BorderDuplicates the outer edge of a surface face.
• ContourCreates curves at a set of evenly spaced cutting planes.
• PullPulls a curve onto the closest points of a surface.
• Extract WireframeDuplicates a surface's isocurves as curves.
• Duplicate BorderDuplicates the outer boundary of a set of surfaces.
• Move IsocurveReshapes a surface by dragging one of its isocurves.
• SilhouetteDraws the silhouette of an object as seen from the current view.
• BooleanCombines curve regions with union, difference or intersection.
• SectionDraws the curve where an object crosses a cutting plane.
• Move IntersectionMoves a curve to lie on its intersection with another object.

Advanced

• Make2DFlattens the visible geometry of the model into 2D curves.
• Adjust SeamMoves the seam of a closed curve.
• Create UVDraws the UV parameter curves of a surface.
• RebuildRebuilds a curve with a given point count and degree.
• Refit to ToleranceRefits a curve within a specified tolerance.
• Apply UVReshapes a curve using another surface's UV space.