Curve Operators

bpy.ops.curve.cyclic_toggle(*, direction='CYCLIC_U')

Make active spline closed/opened loop

Parameters:

direction (enum in ['CYCLIC_U', 'CYCLIC_V'], (optional)) – Direction, Direction to make surface cyclic in

bpy.ops.curve.de_select_first()

(De)select first of visible part of each NURBS

bpy.ops.curve.de_select_last()

(De)select last of visible part of each NURBS

bpy.ops.curve.decimate(*, ratio=1.0)

Simplify selected curves

Parameters:

ratio (float in [0, 1], (optional)) – Ratio

bpy.ops.curve.delete(*, type='VERT')

Delete selected control points or segments

Parameters:

type (enum in ['VERT', 'SEGMENT'], (optional)) – Type, Which elements to delete

bpy.ops.curve.dissolve_verts()

Delete selected control points, correcting surrounding handles

bpy.ops.curve.draw(*, error_threshold=0.0, fit_method='REFIT', corner_angle=1.22173, use_cyclic=True, stroke=None, wait_for_input=True)

Draw a freehand spline

Parameters:

• error_threshold (float in [0, 10], (optional)) – Error, Error distance threshold (in object units)

• fit_method (enum in Curve Fit Method Items, (optional)) – Fit Method

• corner_angle (float in [0, 3.14159], (optional)) – Corner Angle

• use_cyclic (boolean, (optional)) – Cyclic

• stroke (bpy_prop_collection of OperatorStrokeElement, (optional)) – Stroke

• wait_for_input (boolean, (optional)) – Wait for Input

bpy.ops.curve.duplicate()

Duplicate selected control points

bpy.ops.curve.duplicate_move(*, CURVE_OT_duplicate=None, TRANSFORM_OT_translate=None)

Duplicate curve and move

Parameters:

• CURVE_OT_duplicate (CURVE_OT_duplicate, (optional)) – Duplicate Curve, Duplicate selected control points

• TRANSFORM_OT_translate (TRANSFORM_OT_translate, (optional)) – Move, Move selected items

bpy.ops.curve.extrude(*, mode='TRANSLATION')

Extrude selected control point(s)

Parameters:

mode (enum in Transform Mode Type Items, (optional)) – Mode

bpy.ops.curve.extrude_move(*, CURVE_OT_extrude=None, TRANSFORM_OT_translate=None)

Extrude curve and move result

Parameters:

• CURVE_OT_extrude (CURVE_OT_extrude, (optional)) – Extrude, Extrude selected control point(s)

• TRANSFORM_OT_translate (TRANSFORM_OT_translate, (optional)) – Move, Move selected items

bpy.ops.curve.handle_type_set(*, type='AUTOMATIC')

Set type of handles for selected control points

Parameters:

type (enum in ['AUTOMATIC', 'VECTOR', 'ALIGNED', 'FREE_ALIGN', 'TOGGLE_FREE_ALIGN'], (optional)) – Type, Spline type

bpy.ops.curve.hide(*, unselected=False)

Hide (un)selected control points

Parameters:

unselected (boolean, (optional)) – Unselected, Hide unselected rather than selected

bpy.ops.curve.make_segment()

Join two curves by their selected ends

bpy.ops.curve.match_texture_space()

Match texture space to object’s bounding box

bpy.ops.curve.normals_make_consistent(*, calc_length=False)

Recalculate the direction of selected handles

Parameters:

calc_length (boolean, (optional)) – Length, Recalculate handle length

bpy.ops.curve.pen(*, extend=False, deselect=False, toggle=False, deselect_all=False, select_passthrough=False, extrude_point=False, extrude_handle='VECTOR', delete_point=False, insert_point=False, move_segment=False, select_point=False, move_point=False, close_spline=True, close_spline_method='OFF', toggle_vector=False, cycle_handle_type=False)

Construct and edit splines

Parameters:

• extend (boolean, (optional)) – Extend, Extend selection instead of deselecting everything first

• deselect (boolean, (optional)) – Deselect, Remove from selection

• toggle (boolean, (optional)) – Toggle Selection, Toggle the selection

• deselect_all (boolean, (optional)) – Deselect On Nothing, Deselect all when nothing under the cursor

• select_passthrough (boolean, (optional)) – Only Select Unselected, Ignore the select action when the element is already selected

• extrude_point (boolean, (optional)) – Extrude Point, Add a point connected to the last selected point

• extrude_handle (enum in ['AUTO', 'VECTOR'], (optional)) – Extrude Handle Type, Type of the extruded handle

• delete_point (boolean, (optional)) – Delete Point, Delete an existing point

• insert_point (boolean, (optional)) – Insert Point, Insert Point into a curve segment

• move_segment (boolean, (optional)) – Move Segment, Delete an existing point

• select_point (boolean, (optional)) – Select Point, Select a point or its handles

• move_point (boolean, (optional)) – Move Point, Move a point or its handles

• close_spline (boolean, (optional)) – Close Spline, Make a spline cyclic by clicking endpoints

• close_spline_method (enum in ['OFF', 'ON_PRESS', 'ON_CLICK'], (optional)) –

  Close Spline Method, The condition for close spline to activate

  • OFF None.

  • ON_PRESS On Press – Move handles after closing the spline.

  • ON_CLICK On Click – Spline closes on release if not dragged.

• toggle_vector (boolean, (optional)) – Toggle Vector, Toggle between Vector and Auto handles

• cycle_handle_type (boolean, (optional)) – Cycle Handle Type, Cycle between all four handle types

bpy.ops.curve.primitive_bezier_circle_add(*, radius=1.0, enter_editmode=False, align='WORLD', location=(0.0, 0.0, 0.0), rotation=(0.0, 0.0, 0.0), scale=(0.0, 0.0, 0.0))

Construct a Bézier Circle

Parameters:

• radius (float in [0, inf], (optional)) – Radius

• enter_editmode (boolean, (optional)) – Enter Edit Mode, Enter edit mode when adding this object

• align (enum in ['WORLD', 'VIEW', 'CURSOR'], (optional)) –

  Align, The alignment of the new object

  • WORLD World – Align the new object to the world.

  • VIEW View – Align the new object to the view.

  • CURSOR 3D Cursor – Use the 3D cursor orientation for the new object.

• location (mathutils.Vector of 3 items in [-inf, inf], (optional)) – Location, Location for the newly added object

• rotation (mathutils.Euler rotation of 3 items in [-inf, inf], (optional)) – Rotation, Rotation for the newly added object

• scale (mathutils.Vector of 3 items in [-inf, inf], (optional)) – Scale, Scale for the newly added object

bpy.ops.curve.primitive_bezier_curve_add(*, radius=1.0, enter_editmode=False, align='WORLD', location=(0.0, 0.0, 0.0), rotation=(0.0, 0.0, 0.0), scale=(0.0, 0.0, 0.0))

Construct a Bézier Curve

Parameters:

• radius (float in [0, inf], (optional)) – Radius

• enter_editmode (boolean, (optional)) – Enter Edit Mode, Enter edit mode when adding this object

• align (enum in ['WORLD', 'VIEW', 'CURSOR'], (optional)) –

  Align, The alignment of the new object

  • WORLD World – Align the new object to the world.

  • VIEW View – Align the new object to the view.

  • CURSOR 3D Cursor – Use the 3D cursor orientation for the new object.

• location (mathutils.Vector of 3 items in [-inf, inf], (optional)) – Location, Location for the newly added object

• rotation (mathutils.Euler rotation of 3 items in [-inf, inf], (optional)) – Rotation, Rotation for the newly added object

• scale (mathutils.Vector of 3 items in [-inf, inf], (optional)) – Scale, Scale for the newly added object

bpy.ops.curve.primitive_nurbs_circle_add(*, radius=1.0, enter_editmode=False, align='WORLD', location=(0.0, 0.0, 0.0), rotation=(0.0, 0.0, 0.0), scale=(0.0, 0.0, 0.0))

Construct a Nurbs Circle

Parameters:

• radius (float in [0, inf], (optional)) – Radius

• enter_editmode (boolean, (optional)) – Enter Edit Mode, Enter edit mode when adding this object

• align (enum in ['WORLD', 'VIEW', 'CURSOR'], (optional)) –

  Align, The alignment of the new object

  • WORLD World – Align the new object to the world.

  • VIEW View – Align the new object to the view.

  • CURSOR 3D Cursor – Use the 3D cursor orientation for the new object.

• location (mathutils.Vector of 3 items in [-inf, inf], (optional)) – Location, Location for the newly added object

• rotation (mathutils.Euler rotation of 3 items in [-inf, inf], (optional)) – Rotation, Rotation for the newly added object

• scale (mathutils.Vector of 3 items in [-inf, inf], (optional)) – Scale, Scale for the newly added object

bpy.ops.curve.primitive_nurbs_curve_add(*, radius=1.0, enter_editmode=False, align='WORLD', location=(0.0, 0.0, 0.0), rotation=(0.0, 0.0, 0.0), scale=(0.0, 0.0, 0.0))

Construct a Nurbs Curve

Parameters:

• radius (float in [0, inf], (optional)) – Radius

• enter_editmode (boolean, (optional)) – Enter Edit Mode, Enter edit mode when adding this object

• align (enum in ['WORLD', 'VIEW', 'CURSOR'], (optional)) –

  Align, The alignment of the new object

  • WORLD World – Align the new object to the world.

  • VIEW View – Align the new object to the view.

  • CURSOR 3D Cursor – Use the 3D cursor orientation for the new object.

• location (mathutils.Vector of 3 items in [-inf, inf], (optional)) – Location, Location for the newly added object

• rotation (mathutils.Euler rotation of 3 items in [-inf, inf], (optional)) – Rotation, Rotation for the newly added object

• scale (mathutils.Vector of 3 items in [-inf, inf], (optional)) – Scale, Scale for the newly added object

bpy.ops.curve.primitive_nurbs_path_add(*, radius=1.0, enter_editmode=False, align='WORLD', location=(0.0, 0.0, 0.0), rotation=(0.0, 0.0, 0.0), scale=(0.0, 0.0, 0.0))

Construct a Path

Parameters:

• radius (float in [0, inf], (optional)) – Radius

• enter_editmode (boolean, (optional)) – Enter Edit Mode, Enter edit mode when adding this object

• align (enum in ['WORLD', 'VIEW', 'CURSOR'], (optional)) –

  Align, The alignment of the new object

  • WORLD World – Align the new object to the world.

  • VIEW View – Align the new object to the view.

  • CURSOR 3D Cursor – Use the 3D cursor orientation for the new object.

• location (mathutils.Vector of 3 items in [-inf, inf], (optional)) – Location, Location for the newly added object

• rotation (mathutils.Euler rotation of 3 items in [-inf, inf], (optional)) – Rotation, Rotation for the newly added object

• scale (mathutils.Vector of 3 items in [-inf, inf], (optional)) – Scale, Scale for the newly added object

bpy.ops.curve.radius_set(*, radius=1.0)

Set per-point radius which is used for bevel tapering

Parameters:

radius (float in [0, inf], (optional)) – Radius

bpy.ops.curve.reveal(*, select=True)

Reveal hidden control points

Parameters:

select (boolean, (optional)) – Select

bpy.ops.curve.select_all(*, action='TOGGLE')

(De)select all control points

Parameters:

action (enum in ['TOGGLE', 'SELECT', 'DESELECT', 'INVERT'], (optional)) –

Action, Selection action to execute

• TOGGLE Toggle – Toggle selection for all elements.

• SELECT Select – Select all elements.

• DESELECT Deselect – Deselect all elements.

• INVERT Invert – Invert selection of all elements.

bpy.ops.curve.select_less()

Deselect control points at the boundary of each selection region

bpy.ops.curve.select_linked()

Select all control points linked to the current selection

bpy.ops.curve.select_linked_pick(*, deselect=False)

Select all control points linked to already selected ones

Parameters:

deselect (boolean, (optional)) – Deselect, Deselect linked control points rather than selecting them

bpy.ops.curve.select_more()

Select control points at the boundary of each selection region

bpy.ops.curve.select_next()

Select control points following already selected ones along the curves

bpy.ops.curve.select_nth(*, skip=1, nth=1, offset=0)

Deselect every Nth point starting from the active one

Parameters:

• skip (int in [1, inf], (optional)) – Deselected, Number of deselected elements in the repetitive sequence

• nth (int in [1, inf], (optional)) – Selected, Number of selected elements in the repetitive sequence

• offset (int in [-inf, inf], (optional)) – Offset, Offset from the starting point

bpy.ops.curve.select_previous()

Select control points preceding already selected ones along the curves

bpy.ops.curve.select_random(*, ratio=0.5, seed=0, action='SELECT')

Randomly select some control points

Parameters:

• ratio (float in [0, 1], (optional)) – Ratio, Portion of items to select randomly

• seed (int in [0, inf], (optional)) – Random Seed, Seed for the random number generator

• action (enum in ['SELECT', 'DESELECT'], (optional)) –

  Action, Selection action to execute

  • SELECT Select – Select all elements.

  • DESELECT Deselect – Deselect all elements.

bpy.ops.curve.select_row()

Select a row of control points including active one

bpy.ops.curve.select_similar(*, type='WEIGHT', compare='EQUAL', threshold=0.1)

Select similar curve points by property type

Parameters:

• type (enum in ['TYPE', 'RADIUS', 'WEIGHT', 'DIRECTION'], (optional)) – Type

• compare (enum in ['EQUAL', 'GREATER', 'LESS'], (optional)) – Compare

• threshold (float in [0, inf], (optional)) – Threshold

bpy.ops.curve.separate()

Separate selected points from connected unselected points into a new object

bpy.ops.curve.shade_flat()

Set shading to flat

bpy.ops.curve.shade_smooth()

Set shading to smooth

bpy.ops.curve.shortest_path_pick()

Select shortest path between two selections

bpy.ops.curve.smooth()

Flatten angles of selected points

bpy.ops.curve.smooth_radius()

Interpolate radii of selected points

bpy.ops.curve.smooth_tilt()

Interpolate tilt of selected points

bpy.ops.curve.smooth_weight()

Interpolate weight of selected points

bpy.ops.curve.spin(*, center=(0.0, 0.0, 0.0), axis=(0.0, 0.0, 0.0))

Extrude selected boundary row around pivot point and current view axis

Parameters:

• center (mathutils.Vector of 3 items in [-inf, inf], (optional)) – Center, Center in global view space

• axis (mathutils.Vector of 3 items in [-1, 1], (optional)) – Axis, Axis in global view space

bpy.ops.curve.spline_type_set(*, type='POLY', use_handles=False)

Set type of active spline

Parameters:

• type (enum in ['POLY', 'BEZIER', 'NURBS'], (optional)) – Type, Spline type

• use_handles (boolean, (optional)) – Handles, Use handles when converting Bézier curves into polygons

bpy.ops.curve.spline_weight_set(*, weight=1.0)

Set softbody goal weight for selected points

Parameters:

weight (float in [0, 1], (optional)) – Weight

bpy.ops.curve.split()

Split off selected points from connected unselected points

bpy.ops.curve.subdivide(*, number_cuts=1)

Subdivide selected segments

Parameters:

number_cuts (int in [1, 1000], (optional)) – Number of Cuts

bpy.ops.curve.switch_direction()

Switch direction of selected splines

bpy.ops.curve.tilt_clear()

Clear the tilt of selected control points

bpy.ops.curve.vertex_add(*, location=(0.0, 0.0, 0.0))

Add a new control point (linked to only selected end-curve one, if any)

Parameters:

location (mathutils.Vector of 3 items in [-inf, inf], (optional)) – Location, Location to add new vertex at