Pie Chart

Pie Charts are ideal for showing changes over time or the magnitude of multiple datasets stacked together. They combine the smoothness of line charts with the visual impact of filled areas.

Usage

Copy the following helper functions into your Reflex application.

import reflex as rx

tooltip = {
    "is_animation_active": False,
    "separator": "",
    "cursor": False,
    "item_style": {
        "color": "currentColor",
        "display": "flex",
        "paddingBottom": "0px",
        "justifyContent": "space-between",
        "textTransform": "capitalize",
    },
    "label_style": {
        "color": rx.color("slate", 10),
        "fontWeight": "500",
    },
    "content_style": {
        "background": rx.color_mode_cond("oklch(0.97 0.00 0)", "oklch(0.14 0.00 286)"),
        "borderColor": rx.color("slate", 5),
        "borderRadius": "5px",
        "fontFamily": "IBM Plex Mono,ui-monospace,monospace",
        "fontSize": "0.875rem",
        "lineHeight": "1.25rem",
        "fontWeight": "500",
        "letterSpacing": "-0.01rem",
        "minWidth": "8rem",
        "width": "175px",
        "padding": "0.375rem 0.625rem ",
        "position": "relative",
    },
}


def info(title: str, size: str, subtitle: str, align: str):
    return rx.vstack(
        rx.heading(title, size=size, weight="bold"),
        rx.text(subtitle, size="1", color=rx.color("slate", 11), weight="medium"),
        spacing="1",
        align=align,
    )


def get_tooltip():
    """Standard tooltip for all charts."""
    return rx.recharts.graphing_tooltip(**tooltip)


def get_cartesian_grid():
    """Standard cartesian grid for charts."""
    return rx.recharts.cartesian_grid(
        horizontal=True, vertical=False, class_name="opacity-25"
    )


def get_x_axis(data_key: str):
    """Standard X axis configuration."""
    return rx.recharts.x_axis(
        data_key=data_key,
        axis_line=False,
        tick_size=10,
        tick_line=False,
        custom_attrs={"fontSize": "12px"},
        interval="preserveStartEnd",
    )

Examples

Below are examples demonstrating how these components and charts can be used.

Basic

A minimal example showing proportional data distribution in a circular format.

Hovering Labels

Displays labels that appear dynamically when hovering over chart segments.

Inner Labels

Shows labels positioned inside each pie segment for compact presentation.

Legend

Adds a built-in legend for easy segment identification and reference.

Doughnut

Renders the pie chart with a hollow center for a modern doughnut style.

Active

Demonstrates interactive segment highlighting and selection states.