Delete all measurements with python

Question

Is there a way to delete all measurements with python?

If you have any measurements in your scene you can run this to get the lengths of them, but I don't know how to delete them.

import bpy

lengths = []
ruler_data = bpy.data.grease_pencils["Annotations"].layers['RulerData3D']
frame = ruler_data.frames[0]
for stroke in frame.strokes:
    p1, p2 = stroke.points[0], stroke.points[-1]
    length = (p1.co - p2.co).length
    lengths.append(length)

for i in lengths:
    print(i)

Answer 1

import bpy

# strokes = bpy.data.grease_pencils["Annotations"].layers['RulerData3D'].frames[0].strokes

def is_measure_tool_active():
    try:
        if 'builtin.measure' in bpy.context.workspace.tools: return True
        return False
    except: return False

def set_active_tool(tool_name):
    for area in bpy.context.screen.areas:
        if area.type == "VIEW_3D":
            override = bpy.context.copy()
            override["space_data"] = area.spaces[0]
            override["area"] = area
            bpy.ops.wm.tool_set_by_id(override, name=tool_name)
            break

def refresh():
    if is_measure_tool_active():
        set_active_tool("builtin.select_box")
        set_active_tool("builtin.measure")

def get_layers():
    try: return bpy.data.grease_pencils["Annotations"].layers
    except: return None

layers = get_layers()

if layers is not None and 'RulerData3D' in layers:
    layers.remove(layers['RulerData3D'])

    refresh()

Answer 2

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Just a little update to this script so that it runs on Blender 3.6. Thank you ChatGPT 4:

import bpy

def is_measure_tool_active():
    try:
        if 'builtin.measure' in bpy.context.workspace.tools: return True
        return False
    except: return False

def set_active_tool(tool_name):
    for area in bpy.context.screen.areas:
        if area.type == "VIEW_3D":
            override = bpy.context.copy()
            override["space_data"] = area.spaces[0]
            override["area"] = area
            bpy.ops.wm.tool_set_by_id(override, name=tool_name)
            break

def refresh():
    if is_measure_tool_active():
        set_active_tool("builtin.select_box")
        set_active_tool("builtin.measure")

def get_grease_pencil():
    try: return bpy.data.grease_pencils["Annotations"]
    except: return None

grease_pencil = get_grease_pencil()

if grease_pencil is not None:
    for layer in grease_pencil.layers:
        grease_pencil.layers.remove(layer)

    refresh()