Gpencil Operators

bpy.ops.gpencil.active_frame_delete()

Delete the active frame for the active Grease Pencil Layer

bpy.ops.gpencil.active_frames_delete_all()

Delete the active frame(s) of all editable Grease Pencil layers

bpy.ops.gpencil.blank_frame_add(all_layers=False)

Insert a blank frame on the current frame (all subsequently existing frames, if any, are shifted right by one frame)

Parameters:all_layers (boolean, (optional)) – All Layers, Create blank frame in all layers, not only active

bpy.ops.gpencil.brush_add()

Add new Grease Pencil drawing brush for the active Grease Pencil data-block

bpy.ops.gpencil.brush_change(brush='DEFAULT')

Change active Grease Pencil drawing brush

Parameters:brush (enum in ['DEFAULT'], (optional)) – Grease Pencil Brush

bpy.ops.gpencil.brush_copy()

Copy current Grease Pencil drawing brush

bpy.ops.gpencil.brush_move(type='UP')

Move the active Grease Pencil drawing brush up/down in the list

Parameters:type (enum in ['UP', 'DOWN'], (optional)) – Type

bpy.ops.gpencil.brush_paint(stroke=None, wait_for_input=True)

Apply tweaks to strokes by painting over the strokes

Parameters:

• stroke (bpy_prop_collection of OperatorStrokeElement, (optional)) – Stroke
• wait_for_input (boolean, (optional)) – Wait for Input, Enter a mini ‘sculpt-mode’ if enabled, otherwise, exit after drawing a single stroke

bpy.ops.gpencil.brush_presets_create()

Create a set of predefined Grease Pencil drawing brushes

bpy.ops.gpencil.brush_remove()

Remove active Grease Pencil drawing brush

bpy.ops.gpencil.brush_select(index=0)

Select a Grease Pencil drawing brush

Parameters:index (int in [0, inf], (optional)) – Index, Index of Drawing Brush

bpy.ops.gpencil.convert(type='PATH', use_normalize_weights=True, radius_multiplier=1.0, use_link_strokes=True, timing_mode='FULL', frame_range=100, start_frame=1, use_realtime=False, end_frame=250, gap_duration=0.0, gap_randomness=0.0, seed=0, use_timing_data=False)

Convert the active Grease Pencil layer to a new Curve Object

Parameters:

• type (enum in ['PATH', 'CURVE', 'POLY'], (optional)) –

  Type, Which type of curve to convert to

  • PATH Path, Animation path.
  • CURVE Bezier Curve, Smooth Bezier curve.
  • POLY Polygon Curve, Bezier curve with straight-line segments (vector handles).
• use_normalize_weights (boolean, (optional)) – Normalize Weight, Normalize weight (set from stroke width)
• radius_multiplier (float in [0, 1000], (optional)) – Radius Fac, Multiplier for the points’ radii (set from stroke width)
• use_link_strokes (boolean, (optional)) – Link Strokes, Whether to link strokes with zero-radius sections of curves
• timing_mode (enum in ['NONE', 'LINEAR', 'FULL', 'CUSTOMGAP'], (optional)) –

  Timing Mode, How to use timing data stored in strokes

  • NONE No Timing, Ignore timing.
  • LINEAR Linear, Simple linear timing.
  • FULL Original, Use the original timing, gaps included.
  • CUSTOMGAP Custom Gaps, Use the original timing, but with custom gap lengths (in frames).
• frame_range (int in [1, 10000], (optional)) – Frame Range, The duration of evaluation of the path control curve
• start_frame (int in [1, 100000], (optional)) – Start Frame, The start frame of the path control curve
• use_realtime (boolean, (optional)) – Realtime, Whether the path control curve reproduces the drawing in realtime, starting from Start Frame
• end_frame (int in [1, 100000], (optional)) – End Frame, The end frame of the path control curve (if Realtime is not set)
• gap_duration (float in [0, 10000], (optional)) – Gap Duration, Custom Gap mode: (Average) length of gaps, in frames (Note: Realtime value, will be scaled if Realtime is not set)
• gap_randomness (float in [0, 10000], (optional)) – Gap Randomness, Custom Gap mode: Number of frames that gap lengths can vary
• seed (int in [0, 1000], (optional)) – Random Seed, Custom Gap mode: Random generator seed
• use_timing_data (boolean, (optional)) – Has Valid Timing, Whether the converted Grease Pencil layer has valid timing data (internal use)

bpy.ops.gpencil.copy()

Copy selected Grease Pencil points and strokes

bpy.ops.gpencil.data_add()

Add new Grease Pencil data-block

bpy.ops.gpencil.data_unlink()

Unlink active Grease Pencil data-block

bpy.ops.gpencil.delete(type='POINTS')

Delete selected Grease Pencil strokes, vertices, or frames

Parameters:type (enum in ['POINTS', 'STROKES', 'FRAME'], (optional)) –

Type, Method used for deleting Grease Pencil data

• POINTS Points, Delete selected points and split strokes into segments.
• STROKES Strokes, Delete selected strokes.
• FRAME Frame, Delete active frame.

bpy.ops.gpencil.dissolve()

Delete selected points without splitting strokes

bpy.ops.gpencil.draw(mode='DRAW', stroke=None, wait_for_input=True)

Make annotations on the active data

Parameters:

• mode (enum in ['DRAW', 'DRAW_STRAIGHT', 'DRAW_POLY', 'ERASER'], (optional)) –

  Mode, Way to interpret mouse movements

  • DRAW Draw Freehand, Draw freehand stroke(s).
  • DRAW_STRAIGHT Draw Straight Lines, Draw straight line segment(s).
  • DRAW_POLY Draw Poly Line, Click to place endpoints of straight line segments (connected).
  • ERASER Eraser, Erase Grease Pencil strokes.
• stroke (bpy_prop_collection of OperatorStrokeElement, (optional)) – Stroke
• wait_for_input (boolean, (optional)) – Wait for Input, Wait for first click instead of painting immediately

bpy.ops.gpencil.duplicate()

Duplicate the selected Grease Pencil strokes

bpy.ops.gpencil.duplicate_move(GPENCIL_OT_duplicate=None, TRANSFORM_OT_translate=None)

Make copies of the selected Grease Pencil strokes and move them

Parameters:

• GPENCIL_OT_duplicate (GPENCIL_OT_duplicate, (optional)) – Duplicate Strokes, Duplicate the selected Grease Pencil strokes
• TRANSFORM_OT_translate (TRANSFORM_OT_translate, (optional)) – Translate, Translate (move) selected items

bpy.ops.gpencil.editmode_toggle()

Enter/Exit edit mode for Grease Pencil strokes

bpy.ops.gpencil.hide(unselected=False)

Hide selected/unselected Grease Pencil layers

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

bpy.ops.gpencil.interpolate(shift=0.0)

Interpolate grease pencil strokes between frames

Parameters:shift (float in [-1, 1], (optional)) – Shift, Bias factor for which frame has more influence on the interpolated strokes

bpy.ops.gpencil.interpolate_reverse()

Remove breakdown frames generated by interpolating between two Grease Pencil frames

bpy.ops.gpencil.interpolate_sequence()

Generate ‘in-betweens’ to smoothly interpolate between Grease Pencil frames

bpy.ops.gpencil.layer_add()

Add new Grease Pencil layer for the active Grease Pencil data-block

bpy.ops.gpencil.layer_change(layer='DEFAULT')

Change active Grease Pencil layer

Parameters:layer (enum in ['DEFAULT'], (optional)) – Grease Pencil Layer

bpy.ops.gpencil.layer_duplicate()

Make a copy of the active Grease Pencil layer

bpy.ops.gpencil.layer_isolate(affect_visibility=False)

Toggle whether the active layer is the only one that can be edited and/or visible

Parameters:affect_visibility (boolean, (optional)) – Affect Visibility, In addition to toggling the editability, also affect the visibility

bpy.ops.gpencil.layer_merge()

Merge the current layer with the layer below

bpy.ops.gpencil.layer_move(type='UP')

Move the active Grease Pencil layer up/down in the list

Parameters:type (enum in ['UP', 'DOWN'], (optional)) – Type

bpy.ops.gpencil.layer_remove()

Remove active Grease Pencil layer

bpy.ops.gpencil.lock_all()

Lock all Grease Pencil layers to prevent them from being accidentally modified

bpy.ops.gpencil.move_to_layer(layer='DEFAULT')

Move selected strokes to another layer

Parameters:layer (enum in ['DEFAULT'], (optional)) – Grease Pencil Layer

bpy.ops.gpencil.palette_add()

Add new Grease Pencil palette for the active Grease Pencil data-block

bpy.ops.gpencil.palette_change(palette='DEFAULT')

Change active Grease Pencil palette

Parameters:palette (enum in ['DEFAULT'], (optional)) – Grease Pencil Palette

bpy.ops.gpencil.palette_lock_layer()

Lock and hide any color not used in any layer

bpy.ops.gpencil.palette_remove()

Remove active Grease Pencil palette

bpy.ops.gpencil.palettecolor_add()

Add new Grease Pencil palette color for the active Grease Pencil data-block

bpy.ops.gpencil.palettecolor_copy()

Copy current Grease Pencil palette color

bpy.ops.gpencil.palettecolor_hide(unselected=False)

Hide selected/unselected Grease Pencil colors

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

bpy.ops.gpencil.palettecolor_isolate(affect_visibility=False)

Toggle whether the active color is the only one that is editable and/or visible

Parameters:affect_visibility (boolean, (optional)) – Affect Visibility, In addition to toggling the editability, also affect the visibility

bpy.ops.gpencil.palettecolor_lock_all()

Lock all Grease Pencil colors to prevent them from being accidentally modified

bpy.ops.gpencil.palettecolor_move(direction='UP')

Move the active Grease Pencil palette color up/down in the list

Parameters:direction (enum in ['UP', 'DOWN'], (optional)) – Direction

bpy.ops.gpencil.palettecolor_remove()

Remove active Grease Pencil palette color

bpy.ops.gpencil.palettecolor_reveal()

Unhide all hidden Grease Pencil palette colors

bpy.ops.gpencil.palettecolor_select()

Select all Grease Pencil strokes using current color

bpy.ops.gpencil.palettecolor_unlock_all()

Unlock all Grease Pencil colors so that they can be edited

bpy.ops.gpencil.paste(type='COPY')

Paste previously copied strokes or copy and merge in active layer

Parameters:type (enum in ['COPY', 'MERGE'], (optional)) – Type

bpy.ops.gpencil.reproject(type='PLANAR')

Reproject the selected strokes from the current viewpoint as if they had been newly drawn (e.g. to fix problems from accidental 3D cursor movement or accidental viewport changes, or for matching deforming geometry)

Parameters:type (enum in ['PLANAR', 'SURFACE'], (optional)) –

Projection Type

• PLANAR Planar, Reproject the strokes to end up on the same plane, as if drawn from the current viewpoint using ‘Cursor’ Stroke Placement.
• SURFACE Surface, Reproject the strokes on to the scene geometry, as if drawn using ‘Surface’ placement.

bpy.ops.gpencil.reveal()

Show all Grease Pencil layers

bpy.ops.gpencil.select(extend=False, deselect=False, toggle=False, entire_strokes=False, location=(0, 0))

Select Grease Pencil strokes and/or stroke points

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
• entire_strokes (boolean, (optional)) – Entire Strokes, Select entire strokes instead of just the nearest stroke vertex
• location (int array of 2 items in [-inf, inf], (optional)) – Location, Mouse location

bpy.ops.gpencil.select_all(action='TOGGLE')

Change selection of all Grease Pencil strokes currently visible

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.gpencil.select_border(gesture_mode=0, xmin=0, xmax=0, ymin=0, ymax=0, extend=True)

Select Grease Pencil strokes within a rectangular region

Parameters:

• gesture_mode (int in [-inf, inf], (optional)) – Gesture Mode
• xmin (int in [-inf, inf], (optional)) – X Min
• xmax (int in [-inf, inf], (optional)) – X Max
• ymin (int in [-inf, inf], (optional)) – Y Min
• ymax (int in [-inf, inf], (optional)) – Y Max
• extend (boolean, (optional)) – Extend, Extend selection instead of deselecting everything first

bpy.ops.gpencil.select_circle(x=0, y=0, radius=1, gesture_mode=0)

Select Grease Pencil strokes using brush selection

Parameters:

• x (int in [-inf, inf], (optional)) – X
• y (int in [-inf, inf], (optional)) – Y
• radius (int in [1, inf], (optional)) – Radius
• gesture_mode (int in [-inf, inf], (optional)) – Gesture Mode

bpy.ops.gpencil.select_first(only_selected_strokes=False, extend=False)

Select first point in Grease Pencil strokes

Parameters:

• only_selected_strokes (boolean, (optional)) – Selected Strokes Only, Only select the first point of strokes that already have points selected
• extend (boolean, (optional)) – Extend, Extend selection instead of deselecting all other selected points

bpy.ops.gpencil.select_grouped(type='LAYER')

Select all strokes with similar characteristics

Parameters:type (enum in ['LAYER', 'COLOR'], (optional)) –

Type

• LAYER Layer, Shared layers.
• COLOR Color, Shared colors.

bpy.ops.gpencil.select_lasso(path=None, deselect=False, extend=True)

Select Grease Pencil strokes using lasso selection

Parameters:

• path (bpy_prop_collection of OperatorMousePath, (optional)) – Path
• deselect (boolean, (optional)) – Deselect, Deselect rather than select items
• extend (boolean, (optional)) – Extend, Extend selection instead of deselecting everything first

bpy.ops.gpencil.select_last(only_selected_strokes=False, extend=False)

Select last point in Grease Pencil strokes

Parameters:

• only_selected_strokes (boolean, (optional)) – Selected Strokes Only, Only select the last point of strokes that already have points selected
• extend (boolean, (optional)) – Extend, Extend selection instead of deselecting all other selected points

bpy.ops.gpencil.select_less()

Shrink sets of selected Grease Pencil points

bpy.ops.gpencil.select_linked()

Select all points in same strokes as already selected points

bpy.ops.gpencil.select_more()

Grow sets of selected Grease Pencil points

bpy.ops.gpencil.selection_opacity_toggle()

Hide/Unhide selected points for Grease Pencil strokes setting alpha factor

bpy.ops.gpencil.snap_cursor_to_selected()

Snap cursor to center of selected points

bpy.ops.gpencil.snap_to_cursor(use_offset=True)

Snap selected points/strokes to the cursor

Parameters:use_offset (boolean, (optional)) – With Offset, Offset the entire stroke instead of selected points only

bpy.ops.gpencil.snap_to_grid()

Snap selected points to the nearest grid points

bpy.ops.gpencil.stroke_apply_thickness()

Apply the thickness change of the layer to its strokes

bpy.ops.gpencil.stroke_arrange(direction='UP')

Arrange selected strokes up/down in the drawing order of the active layer

Parameters:direction (enum in ['UP', 'DOWN', 'TOP', 'BOTTOM'], (optional)) – Direction

bpy.ops.gpencil.stroke_change_color()

Move selected strokes to active color

bpy.ops.gpencil.stroke_cyclical_set(type='TOGGLE')

Close or open the selected stroke adding an edge from last to first point

Parameters:type (enum in ['CLOSE', 'OPEN', 'TOGGLE'], (optional)) – Type

bpy.ops.gpencil.stroke_flip()

Change direction of the points of the selected strokes

bpy.ops.gpencil.stroke_join(type='JOIN', leave_gaps=False)

Join selected strokes (optionally as new stroke)

Parameters:

• type (enum in ['JOIN', 'JOINCOPY'], (optional)) – Type
• leave_gaps (boolean, (optional)) – Leave Gaps, Leave gaps between joined strokes instead of linking them

bpy.ops.gpencil.stroke_lock_color()

Lock any color not used in any selected stroke

bpy.ops.gpencil.stroke_subdivide(number_cuts=1)

Subdivide between continuous selected points of the stroke adding a point half way between them

Parameters:number_cuts (int in [1, 10], (optional)) – Number of Cuts

bpy.ops.gpencil.unlock_all()

Unlock all Grease Pencil layers so that they can be edited