Bar Chart

Bar charts are ideal for visualizing categorical data and comparing multiple series side by side. They can be stacked, oriented horizontally, or customized with legends and axes.

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.

Multiple Series

A simple vertical bar chart comparing data categories.

Horizontal

Display multiple datasets within the same chart for comparison.

Stacked with Legends

Combine related values by stacking bars for cumulative insights.

Labeled

Flip the orientation to show bars horizontally for improved readability.

Dynamic

Demonstrate dynamic updates or data-driven interactivity in your bar chart.

Active

Add a built-in legend for clarity when displaying multiple series.

Mixed Horizontal

Create a fully custom legend layout using Reflex components.

Custom Tabs

Customize and format your x and y axes for improved presentation.

Custom Legends

Show how the chart adapts across different screen sizes and layouts.

Alternating Colors

Apply gradient fills to your bars for a modern, polished look.