LineChart

LineChart

Bases: ConstrainedControl

Draws a line chart.

animate_offset

animate_offset: AnimationValue | None = None

Setting control's animate_offset to either True, number or an instance of animation.Animation class enables implicit animation of Control.offset property.

offset property is an instance of transform.Offset class which specifies horizontal x and vertical y offset of a control scaled to control's size. For example, an offset transform.Offset(-0.25, 0) will result in a horizontal translation of one quarter the width of the control.

Offset animation is used for various sliding effects:

import flet as ft

def main(page: ft.Page):

    c = ft.Container(
        width=150,
        height=150,
        bgcolor="blue",
        border_radius=10,
        offset=ft.transform.Offset(-2, 0),
        animate_offset=ft.animation.Animation(1000),
    )

    def animate(e):
        c.offset = ft.transform.Offset(0, 0)
        c.update()

    page.add(
        c,
        ft.ElevatedButton("Reveal!", on_click=animate),
    )

ft.run(main)

animate_opacity

animate_opacity: AnimationValue | None = None

Setting control's animate_opacity to either True, number or an instance of animation.Animation class enables implicit animation of Control.opacity property.

import flet as ft

def main(page: ft.Page):

    c = ft.Container(
        width=150,
        height=150,
        bgcolor="blue",
        border_radius=10,
        animate_opacity=300,
    )

    def animate_opacity(e):
        c.opacity = 0 if c.opacity == 1 else 1
        c.update()

    page.add(
        c,
        ft.ElevatedButton(
            "Animate opacity",
            on_click=animate_opacity,
        ),
    )

ft.app(main)

animate_position

animate_position: AnimationValue | None = None

Setting control's animate_position to either True, number or an instance of animation.Animation class (see above) enables implicit animation of Control's left, top, right and bottom properties.

Please note Control position works inside Stack control only.

import flet as ft

def main(page: ft.Page):

    c1 = ft.Container(width=50, height=50, bgcolor="red", animate_position=1000)

    c2 = ft.Container(
        width=50, height=50, bgcolor="green", top=60, left=0, animate_position=500
    )

    c3 = ft.Container(
        width=50, height=50, bgcolor="blue", top=120, left=0, animate_position=1000
    )

    def animate_container(e):
        c1.top = 20
        c1.left = 200
        c2.top = 100
        c2.left = 40
        c3.top = 180
        c3.left = 100
        page.update()

    page.add(
        ft.Stack([c1, c2, c3], height=250),
        ft.ElevatedButton("Animate!", on_click=animate_container),
    )

ft.run(main)

animate_rotation

animate_rotation: AnimationValue | None = None

Setting control's animate_rotation to either True, number or an instance of animation.Animation class enables implicit animation of Control.rotate property.

from math import pi
import flet as ft

def main(page: ft.Page):

    c = ft.Container(
        width=100,
        height=70,
        bgcolor="blue",
        border_radius=5,
        rotate=ft.transform.Rotate(0, alignment=ft.Alignment.CENTER),
        animate_rotation=ft.animation.Animation(300, ft.AnimationCurve.BOUNCE_OUT),
    )

    def animate(e):
        c.rotate.angle += pi / 2
        page.update()

    page.vertical_alignment = ft.MainAxisAlignment.CENTER
    page.horizontal_alignment = ft.CrossAxisAlignment.CENTER
    page.spacing = 30
    page.add(
        c,
        ft.ElevatedButton("Animate!", on_click=animate),
    )

ft.run(main)

animate_scale

animate_scale: AnimationValue | None = None

Setting control's animate_scale to either True, number or an instance of animation.Animation class enables implicit animation of Control.scale property.

import flet as ft

def main(page: ft.Page):

    c = ft.Container(
        width=100,
        height=100,
        bgcolor="blue",
        border_radius=5,
        scale=ft.transform.Scale(scale=1),
        animate_scale=ft.animation.Animation(600, ft.AnimationCurve.BOUNCE_OUT),
    )

    def animate(e):
        c.scale = 2
        page.update()

    page.vertical_alignment = ft.MainAxisAlignment.CENTER
    page.horizontal_alignment = ft.CrossAxisAlignment.CENTER
    page.spacing = 30
    page.add(
        c,
        ft.ElevatedButton("Animate!", on_click=animate),
    )

ft.run(main)

animate_size

animate_size: AnimationValue | None = None

TBD

animation

animation: AnimationValue = field(
    default_factory=lambda: Animation(
        duration=Duration(milliseconds=150), curve=LINEAR
    )
)

Controls chart implicit animation.

aspect_ratio

aspect_ratio: OptionalNumber = None

TBD

badge

badge: BadgeValue | None = None

The badge property supports both strings and Badge objects.

baseline_x

baseline_x: Number | None = None

Baseline value for X axis.

baseline_y

baseline_y: Number | None = None

Baseline value for Y axis.

bgcolor

bgcolor: ColorValue | None = None

Background color of the chart.

border

border: Border | None = None

The border around the chart.

bottom

bottom: OptionalNumber = None

Effective inside Stack only. The distance that the child's bottom edge is inset from the bottom of the stack.

bottom_axis

bottom_axis: ChartAxis = field(
    default_factory=lambda: ChartAxis(label_size=30)
)

Defines the appearance of the bottom axis, its title and labels.

col

col: ResponsiveNumber = 12

If a parent of the control is ResponsiveRow, col property is used to determine how many virtual columns of a screen the control will span.

Can be a number or a dictionary configured to have a different value for specific breakpoints, for example col={"sm": 6}. Breakpoints are named dimension ranges:

Breakpoint	Dimension
xs	<576px
sm	≥576px
md	≥768px
lg	≥992px
xl	≥1200px
xxl	≥1400px

If col property is not specified, it spans the maximum number of columns (12).

data

data: Any = skip_field()

Arbitrary data of any type that can be attached to a control.

data_series

data_series: list[LineChartData] = field(
    default_factory=list
)

A list of LineChartData controls drawn as separate lines on a chart.

disabled

disabled: bool = False

Every control has disabled property which is False by default - control and all its children are enabled. disabled property is mostly used with data entry controls like TextField, Dropdown, Checkbox, buttons. However, disabled could be set to a parent control and its value will be propagated down to all children recursively.

For example, if you have a form with multiple entry controls you can disable them all together by disabling container:

c = ft.Column(controls=[
    ft.TextField(),
    ft.TextField()
])
c.disabled = True
page.add(c)

expand

expand: bool | int | None = None

When a child Control is placed into a Column or a Row you can "expand" it to fill the available space. expand property could be a boolean value (True - expand control to fill all available space) or an integer - an "expand factor" specifying how to divide a free space with other expanded child controls.

For more information and examples about expand property see "Expanding children" sections in Column or Row.

Here is an example of expand being used in action for both Column and Row:

import flet as ft

def main(page: ft.Page):
    page.spacing = 0
    page.padding = 0
    page.add(
        ft.Column(
            controls=[
                ft.Row(
                    [
                        ft.Card(
                            content=ft.Text("Card_1"),
                            color=ft.Colors.ORANGE_300,
                            expand=True,
                            height=page.height,
                            margin=0,
                        ),
                        ft.Card(
                            content=ft.Text("Card_2"),
                            color=ft.Colors.GREEN_100,
                            expand=True,
                            height=page.height,
                            margin=0,
                        ),
                    ],
                    expand=True,
                    spacing=0,
                ),
            ],
            expand=True,
            spacing=0,
        ),
    )

ft.app(main)

expand_loose

expand_loose: bool | None = None

Effective only if expand is True.

If expand_loose is True, the child control of a Column or a Row will be given the flexibility to expand to fill the available space in the main axis (e.g., horizontally for a Row or vertically for a Column), but will not be required to fill the available space.

The default value is False.

Here is the example of Containers placed in Rows with expand_loose = True:

import flet as ft


class Message(ft.Container):
    def __init__(self, author, body):
        super().__init__()
        self.content = ft.Column(
            controls=[
                ft.Text(author, weight=ft.FontWeight.BOLD),
                ft.Text(body),
            ],
        )
        self.border = ft.border.all(1, ft.Colors.BLACK)
        self.border_radius = ft.border_radius.all(10)
        self.bgcolor = ft.Colors.GREEN_200
        self.padding = 10
        self.expand = True
        self.expand_loose = True


def main(page: ft.Page):
    chat = ft.ListView(
        padding=10,
        spacing=10,
        controls=[
            ft.Row(
                alignment=ft.MainAxisAlignment.START,
                controls=[
                    Message(
                        author="John",
                        body="Hi, how are you?",
                    ),
                ],
            ),
            ft.Row(
                alignment=ft.MainAxisAlignment.END,
                controls=[
                    Message(
                        author="Jake",
                        body="Hi I am good thanks, how about you?",
                    ),
                ],
            ),
            ft.Row(
                alignment=ft.MainAxisAlignment.START,
                controls=[
                    Message(
                        author="John",
                        body="Lorem Ipsum is simply dummy text of the printing and 
                        typesetting industry. Lorem Ipsum has been the industry's 
                        standard dummy text ever since the 1500s, when an unknown 
                        printer took a galley of type and scrambled it to make a 
                        type specimen book.",
                    ),
                ],
            ),
            ft.Row(
                alignment=ft.MainAxisAlignment.END,
                controls=[
                    Message(
                        author="Jake",
                        body="Thank you!",
                    ),
                ],
            ),
        ],
    )

    page.window.width = 393
    page.window.height = 600
    page.window.always_on_top = False

    page.add(chat)


ft.run(main)

height

height: OptionalNumber = None

Imposed Control height in virtual pixels.

horizontal_grid_lines

horizontal_grid_lines: ChartGridLines | None = None

Controls drawing of chart's horizontal lines.

interactive

interactive: bool = True

Enables automatic tooltips and points highlighting when hovering over the chart.

key

key: (
    str | int | float | bool | ValueKey | ScrollKey | None
) = None

left

left: OptionalNumber = None

Effective inside Stack only. The distance that the child's left edge is inset from the left of the stack.

left_axis

left_axis: ChartAxis = field(
    default_factory=lambda: ChartAxis(label_size=44)
)

Defines the appearance of the left axis, its title and labels.

max_x

max_x: Number | None = None

Defines the maximum displayed value for X axis.

max_y

max_y: Number | None = None

Defines the maximum displayed value for Y axis.

min_x

min_x: Number | None = None

Defines the minimum displayed value for X axis.

min_y

min_y: Number | None = None

Defines the minimum displayed value for Y axis.

offset

offset: OffsetValue | None = None

Applies a translation transformation before painting the control.

The translation is expressed as a transform.Offset scaled to the control's size. For example, an Offset with a x of 0.25 will result in a horizontal translation of one quarter the width of the control.

The following example displays container at 0, 0 top left corner of a stack as transform applies -1 * 100, -1 * 100 (offset * control_size) horizontal and vertical translations to the control:

import flet as ft

def main(page: ft.Page):

    page.add(
        ft.Stack(
            [
                ft.Container(
                    bgcolor="red",
                    width=100,
                    height=100,
                    left=100,
                    top=100,
                    offset=ft.transform.Offset(-1, -1),
                )
            ],
            width=1000,
            height=1000,
        )
    )

ft.run(main)

on_animation_end

on_animation_end: OptionalControlEventHandler[
    ConstrainedControl
] = None

All controls with animate_* properties have on_animation_end event handler which is called when animation complete and can be used to chain multiple animations.

Event's object data field contains the name of animation:

• opacity
• rotation
• scale
• offset
• position
• container

For example:

c = ft.Container(
        ft.Text("Animate me!"),
        # ...
        animate=ft.animation.Animation(1000, "bounceOut"),
        on_animation_end=lambda e: print("Container animation end:", e.data)
    )

on_event

on_event: EventHandler[LineChartEvent] | None = None

Fires when a chart line is hovered or clicked.

opacity

opacity: Number = 1.0

Defines the transparency of the control.

Value ranges from 0.0 (completely transparent) to 1.0 (completely opaque without any transparency) and defaults to 1.0.

page

page: Page | PageView | None

The page (of type Page or PageView) to which this control belongs to.

parent

parent: BaseControl | None

The direct ancestor(parent) of this control.

It defaults to None and will only have a value when this control is mounted (added to the page tree).

The Page control (which is the root of the tree) is an exception - it always has parent=None.

point_line_end

point_line_end: Number | None = None

The end of the vertical line drawn at selected point position.

Defaults to data point's y value.

point_line_start

point_line_start: Number | None = None

The start of the vertical line drawn under the selected point.

Defaults to chart's bottom edge.

right

right: OptionalNumber = None

Effective inside Stack only. The distance that the child's right edge is inset from the right of the stack.

right_axis

right_axis: ChartAxis = field(
    default_factory=lambda: ChartAxis(label_size=44)
)

Defines the appearance of the right axis, its title and labels.

rotate

rotate: RotateValue | None = None

Transforms control using a rotation around the center.

The value of rotate property could be one of the following types:

• number - a rotation in clockwise radians. Full circle 360° is math.pi * 2 radians, 90° is pi / 2, 45° is pi / 4, etc.
• transform.Rotate - allows to specify rotation angle as well as alignment - the location of rotation center.

For example:

ft.Image(
    src="https://picsum.photos/100/100",
    width=100,
    height=100,
    border_radius=5,
    rotate=Rotate(angle=0.25 * pi, alignment=ft.Alignment.CENTER_LEFT)
)

rtl

rtl: bool = False

True to set text direction to right-to-left.

scale

scale: ScaleValue | None = None

Scale control along the 2D plane. Default scale factor is 1.0 - control is not scaled. 0.5 - the control is twice smaller, 2.0 - the control is twice larger.

Different scale multipliers can be specified for x and y axis, but setting Control.scale property to an instance of transform.Scale class.

Either scale or scale_x and scale_y could be specified, but not all of them, for example:

ft.Image(
    src="https://picsum.photos/100/100",
    width=100,
    height=100,
    border_radius=5,
    scale=Scale(scale_x=2, scale_y=0.5)
)

tooltip

tooltip: LineChartTooltip = field(
    default_factory=lambda: LineChartTooltip()
)

The tooltip configuration for this chart.

top

top: OptionalNumber = None

Effective inside Stack only. The distance that the child's top edge is inset from the top of the stack.

top_axis

top_axis: ChartAxis = field(
    default_factory=lambda: ChartAxis(label_size=30)
)

Defines the appearance of the top axis, its title and labels.

vertical_grid_lines

vertical_grid_lines: ChartGridLines | None = None

Controls drawing of chart's vertical lines.

visible

visible: bool = True

Every control has visible property which is True by default - control is rendered on the page. Setting visible to False completely prevents control (and all its children if any) from rendering on a page canvas. Hidden controls cannot be focused or selected with a keyboard or mouse and they do not emit any events.

width

width: OptionalNumber = None

Imposed Control width in virtual pixels.

before_event

before_event(e: ControlEvent)

before_update

before_update()

clean

clean() -> None

did_mount

did_mount()

init

init()

is_isolated

is_isolated()

update

update() -> None

will_unmount

will_unmount()

Examples

Example 1

import flet as ft

import flet_charts as fch


class State:
    toggled = True


state = State()


def main(page: ft.Page):
    data_1 = [
        fch.LineChartData(
            stroke_width=8,
            color=ft.Colors.LIGHT_GREEN,
            curved=True,
            rounded_stroke_cap=True,
            points=[
                fch.LineChartDataPoint(1, 1),
                fch.LineChartDataPoint(3, 1.5),
                fch.LineChartDataPoint(5, 1.4),
                fch.LineChartDataPoint(7, 3.4),
                fch.LineChartDataPoint(10, 2),
                fch.LineChartDataPoint(12, 2.2),
                fch.LineChartDataPoint(13, 1.8),
            ],
        ),
        fch.LineChartData(
            color=ft.Colors.PINK,
            below_line_bgcolor=ft.Colors.with_opacity(0, ft.Colors.PINK),
            stroke_width=8,
            curved=True,
            rounded_stroke_cap=True,
            points=[
                fch.LineChartDataPoint(1, 1),
                fch.LineChartDataPoint(3, 2.8),
                fch.LineChartDataPoint(7, 1.2),
                fch.LineChartDataPoint(10, 2.8),
                fch.LineChartDataPoint(12, 2.6),
                fch.LineChartDataPoint(13, 3.9),
            ],
        ),
        fch.LineChartData(
            color=ft.Colors.CYAN,
            stroke_width=8,
            curved=True,
            rounded_stroke_cap=True,
            points=[
                fch.LineChartDataPoint(1, 2.8),
                fch.LineChartDataPoint(3, 1.9),
                fch.LineChartDataPoint(6, 3),
                fch.LineChartDataPoint(10, 1.3),
                fch.LineChartDataPoint(13, 2.5),
            ],
        ),
    ]

    data_2 = [
        fch.LineChartData(
            stroke_width=4,
            color=ft.Colors.with_opacity(0.5, ft.Colors.LIGHT_GREEN),
            rounded_stroke_cap=True,
            points=[
                fch.LineChartDataPoint(1, 1),
                fch.LineChartDataPoint(3, 4),
                fch.LineChartDataPoint(5, 1.8),
                fch.LineChartDataPoint(7, 5),
                fch.LineChartDataPoint(10, 2),
                fch.LineChartDataPoint(12, 2.2),
                fch.LineChartDataPoint(13, 1.8),
            ],
        ),
        fch.LineChartData(
            color=ft.Colors.with_opacity(0.5, ft.Colors.PINK),
            below_line_bgcolor=ft.Colors.with_opacity(0.2, ft.Colors.PINK),
            stroke_width=4,
            curved=True,
            rounded_stroke_cap=True,
            points=[
                fch.LineChartDataPoint(1, 1),
                fch.LineChartDataPoint(3, 2.8),
                fch.LineChartDataPoint(7, 1.2),
                fch.LineChartDataPoint(10, 2.8),
                fch.LineChartDataPoint(12, 2.6),
                fch.LineChartDataPoint(13, 3.9),
            ],
        ),
        fch.LineChartData(
            color=ft.Colors.with_opacity(0.5, ft.Colors.CYAN),
            stroke_width=4,
            rounded_stroke_cap=True,
            points=[
                fch.LineChartDataPoint(1, 3.8),
                fch.LineChartDataPoint(3, 1.9),
                fch.LineChartDataPoint(6, 5),
                fch.LineChartDataPoint(10, 3.3),
                fch.LineChartDataPoint(13, 4.5),
            ],
        ),
    ]

    chart = fch.LineChart(
        data_series=data_1,
        border=ft.Border(
            bottom=ft.BorderSide(4, ft.Colors.with_opacity(0.5, ft.Colors.ON_SURFACE))
        ),
        tooltip=fch.LineChartTooltip(
            bgcolor=ft.Colors.with_opacity(0.8, ft.Colors.BLUE_GREY)
        ),
        min_y=0,
        max_y=4,
        min_x=0,
        max_x=14,
        expand=True,
        right_axis=fch.ChartAxis(show_labels=False),
        left_axis=fch.ChartAxis(
            label_size=40,
            labels=[
                fch.ChartAxisLabel(
                    value=1,
                    label=ft.Text("1m", size=14, weight=ft.FontWeight.BOLD),
                ),
                fch.ChartAxisLabel(
                    value=2,
                    label=ft.Text("2m", size=14, weight=ft.FontWeight.BOLD),
                ),
                fch.ChartAxisLabel(
                    value=3,
                    label=ft.Text("3m", size=14, weight=ft.FontWeight.BOLD),
                ),
                fch.ChartAxisLabel(
                    value=4,
                    label=ft.Text("4m", size=14, weight=ft.FontWeight.BOLD),
                ),
                fch.ChartAxisLabel(
                    value=5,
                    label=ft.Text("5m", size=14, weight=ft.FontWeight.BOLD),
                ),
                fch.ChartAxisLabel(
                    value=6,
                    label=ft.Text("6m", size=14, weight=ft.FontWeight.BOLD),
                ),
            ],
        ),
        bottom_axis=fch.ChartAxis(
            label_size=32,
            labels=[
                fch.ChartAxisLabel(
                    value=2,
                    label=ft.Container(
                        margin=ft.Margin(top=10),
                        content=ft.Text(
                            value="SEP",
                            size=16,
                            weight=ft.FontWeight.BOLD,
                            color=ft.Colors.with_opacity(0.5, ft.Colors.ON_SURFACE),
                        ),
                    ),
                ),
                fch.ChartAxisLabel(
                    value=7,
                    label=ft.Container(
                        margin=ft.Margin(top=10),
                        content=ft.Text(
                            value="OCT",
                            size=16,
                            weight=ft.FontWeight.BOLD,
                            color=ft.Colors.with_opacity(0.5, ft.Colors.ON_SURFACE),
                        ),
                    ),
                ),
                fch.ChartAxisLabel(
                    value=12,
                    label=ft.Container(
                        margin=ft.Margin(top=10),
                        content=ft.Text(
                            value="DEC",
                            size=16,
                            weight=ft.FontWeight.BOLD,
                            color=ft.Colors.with_opacity(0.5, ft.Colors.ON_SURFACE),
                        ),
                    ),
                ),
            ],
        ),
    )

    def toggle_data(e: ft.Event[ft.IconButton]):
        if state.toggled:
            chart.data_series = data_2
            chart.data_series[2].point = True
            chart.max_y = 6
            chart.interactive = False
        else:
            chart.data_series = data_1
            chart.max_y = 4
            chart.interactive = True
        state.toggled = not state.toggled
        chart.update()

    page.add(ft.IconButton(ft.Icons.REFRESH, on_click=toggle_data), chart)


ft.run(main)

Example 2

import flet as ft

import flet_charts as fch


class State:
    toggled = True


state = State()


def main(page: ft.Page):
    data_1 = [
        fch.LineChartData(
            stroke_width=5,
            color=ft.Colors.CYAN,
            curved=True,
            rounded_stroke_cap=True,
            points=[
                fch.LineChartDataPoint(0, 3),
                fch.LineChartDataPoint(2.6, 2),
                fch.LineChartDataPoint(4.9, 5),
                fch.LineChartDataPoint(6.8, 3.1),
                fch.LineChartDataPoint(8, 4),
                fch.LineChartDataPoint(9.5, 3),
                fch.LineChartDataPoint(11, 4),
            ],
        )
    ]

    data_2 = [
        fch.LineChartData(
            stroke_width=5,
            color=ft.Colors.CYAN,
            curved=True,
            rounded_stroke_cap=True,
            points=[
                fch.LineChartDataPoint(0, 3.44),
                fch.LineChartDataPoint(2.6, 3.44),
                fch.LineChartDataPoint(4.9, 3.44),
                fch.LineChartDataPoint(6.8, 3.44),
                fch.LineChartDataPoint(8, 3.44),
                fch.LineChartDataPoint(9.5, 3.44),
                fch.LineChartDataPoint(11, 3.44),
            ],
        )
    ]

    chart = fch.LineChart(
        expand=True,
        data_series=data_1,
        min_y=0,
        max_y=6,
        min_x=0,
        max_x=11,
        border=ft.Border.all(3, ft.Colors.with_opacity(0.2, ft.Colors.ON_SURFACE)),
        horizontal_grid_lines=fch.ChartGridLines(
            interval=1, color=ft.Colors.with_opacity(0.2, ft.Colors.ON_SURFACE), width=1
        ),
        vertical_grid_lines=fch.ChartGridLines(
            interval=1, color=ft.Colors.with_opacity(0.2, ft.Colors.ON_SURFACE), width=1
        ),
        tooltip=fch.LineChartTooltip(
            bgcolor=ft.Colors.with_opacity(0.8, ft.Colors.BLUE_GREY)
        ),
        left_axis=fch.ChartAxis(
            label_size=40,
            labels=[
                fch.ChartAxisLabel(
                    value=1,
                    label=ft.Text("10K", size=14, weight=ft.FontWeight.BOLD),
                ),
                fch.ChartAxisLabel(
                    value=3,
                    label=ft.Text("30K", size=14, weight=ft.FontWeight.BOLD),
                ),
                fch.ChartAxisLabel(
                    value=5,
                    label=ft.Text("50K", size=14, weight=ft.FontWeight.BOLD),
                ),
            ],
        ),
        bottom_axis=fch.ChartAxis(
            label_size=32,
            labels=[
                fch.ChartAxisLabel(
                    value=2,
                    label=ft.Container(
                        margin=ft.Margin(top=10),
                        content=ft.Text(
                            value="MAR",
                            size=16,
                            weight=ft.FontWeight.BOLD,
                            color=ft.Colors.with_opacity(0.5, ft.Colors.ON_SURFACE),
                        ),
                    ),
                ),
                fch.ChartAxisLabel(
                    value=5,
                    label=ft.Container(
                        margin=ft.Margin(top=10),
                        content=ft.Text(
                            value="JUN",
                            size=16,
                            weight=ft.FontWeight.BOLD,
                            color=ft.Colors.with_opacity(0.5, ft.Colors.ON_SURFACE),
                        ),
                    ),
                ),
                fch.ChartAxisLabel(
                    value=8,
                    label=ft.Container(
                        margin=ft.Margin(top=10),
                        content=ft.Text(
                            value="SEP",
                            size=16,
                            weight=ft.FontWeight.BOLD,
                            color=ft.Colors.with_opacity(0.5, ft.Colors.ON_SURFACE),
                        ),
                    ),
                ),
            ],
        ),
    )

    def toggle_data(e: ft.ControlEvent):
        if state.toggled:
            chart.data_series = data_2
            chart.interactive = False
        else:
            chart.data_series = data_1
            chart.interactive = True
        state.toggled = not state.toggled
        chart.update()

    page.add(ft.ElevatedButton("avg", on_click=toggle_data), chart)


ft.run(main)