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 ['REFIT', 'SPLIT'], (optional)) –
Fit Method
- REFIT Refit, Incrementally refit the curve (high quality).
- SPLIT Split, Split the curve until the tolerance is met (fast).
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 ['INIT', 'DUMMY', 'TRANSLATION', 'ROTATION', 'RESIZE', 'SKIN_RESIZE', 'TOSPHERE', 'SHEAR', 'BEND', 'SHRINKFATTEN', 'TILT', 'TRACKBALL', 'PUSHPULL', 'CREASE', 'MIRROR', 'BONE_SIZE', 'BONE_ENVELOPE', 'BONE_ENVELOPE_DIST', 'CURVE_SHRINKFATTEN', 'MASK_SHRINKFATTEN', 'GPENCIL_SHRINKFATTEN', 'BONE_ROLL', 'TIME_TRANSLATE', 'TIME_SLIDE', 'TIME_SCALE', 'TIME_EXTEND', 'BAKE_TIME', 'BWEIGHT', 'ALIGN', 'EDGESLIDE', 'SEQSLIDE', 'GPENCIL_OPACITY'], (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.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 Bezier 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 (float array of 3 items in [-inf, inf], (optional)) – Location, Location for the newly added object
rotation (float array of 3 items in [-inf, inf], (optional)) – Rotation, Rotation for the newly added object
scale (float array 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 Bezier 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 (float array of 3 items in [-inf, inf], (optional)) – Location, Location for the newly added object
rotation (float array of 3 items in [-inf, inf], (optional)) – Rotation, Rotation for the newly added object
scale (float array 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 (float array of 3 items in [-inf, inf], (optional)) – Location, Location for the newly added object
rotation (float array of 3 items in [-inf, inf], (optional)) – Rotation, Rotation for the newly added object
scale (float array 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 (float array of 3 items in [-inf, inf], (optional)) – Location, Location for the newly added object
rotation (float array of 3 items in [-inf, inf], (optional)) – Rotation, Rotation for the newly added object
scale (float array 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 (float array of 3 items in [-inf, inf], (optional)) – Location, Location for the newly added object
rotation (float array of 3 items in [-inf, inf], (optional)) – Rotation, Rotation for the newly added object
scale (float array 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(percent=50.0, seed=0, action='SELECT')¶

Randomly select some control points

Parameters

percent (float in [0, 100], (optional)) – Percent, Percentage of objects 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 (float array of 3 items in [-inf, inf], (optional)) – Center, Center in global view space
axis (float array 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 bezier 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 (float array of 3 items in [-inf, inf], (optional)) – Location, Location to add new vertex at