hydroxy

Pie chart

Parts of a whole as a full pie, with shares inside the slices or on leader lines. The active slice pulls out. More than six parts fold into a grey "Other".

Revenue

By region, last quarter.

Revenue by region
PartValueShare
North America$412k43%
Europe$298k31%
Asia Pacific$187k19%
Latin America$64k7%

Sessions

Leader lines keep small slices readable.

Sessions by browser
PartValueShare
Chrome642061%
Safari231022%
Edge9409%
Firefox6106%
Samsung Internet1802%
Opera951%

Usage

use hydroxy_leptos::chart_frame::ChartFrame;
use hydroxy_leptos::pie_chart::*;
use leptos::prelude::*;

#[component]
pub fn Demo() -> impl IntoView {
    let regions = vec![
        Datum::new("North America", 412_000.0),
        Datum::new("Europe", 298_000.0),
        Datum::new("Asia Pacific", 187_000.0),
        Datum::new("Latin America", 64_000.0),
    ];
    let browsers = vec![
        Datum::new("Chrome", 6420.0),
        Datum::new("Safari", 2310.0),
        Datum::new("Edge", 940.0),
        Datum::new("Firefox", 610.0),
        Datum::new("Samsung Internet", 180.0),
        Datum::new("Opera", 95.0),
    ];

    view! {
        <div style="display: grid; gap: var(--space-10);">
            <ChartFrame title="Revenue" description="By region, last quarter.">
                <PieChart data=regions label="Revenue by region" format=|v: f64| format!("${:.0}k", v / 1000.0) />
            </ChartFrame>
            <ChartFrame title="Sessions" description="Leader lines keep small slices readable.">
                <PieChart data=browsers label="Sessions by browser" labels=PieLabels::Leader size=180 />
            </ChartFrame>
        </div>
    }
}

Anatomy

Componentdata-partRenders
PieChartrootfigure with a screen-reader table of every part
plotFocusable pie; arrow keys step through slices
sliceOne per part, sweeping in from its start angle
slice-labelShare inside slices of 6% or more
leaderLine and label outside the pie, with labels=Leader
tooltipPart, value and share of the active slice
legendPart names; hovering one picks out its slice

Keyboard

KeyDoes
ArrowRight / ArrowDownNext slice, clockwise
ArrowLeft / ArrowUpPrevious slice
Home / EndFirst or last slice
EscapeClear the active slice

Props

PropTypeNotes
dataVec<Datum>Required. Parts clockwise from 12 o'clock
labelStringRequired. What the chart shows; the accessible name
sizeu16Pie diameter in px. Default 200
labelsPieLabelsInside (default), Leader or None
formatFn(f64) -> StringFormats values in the tooltip and table

Events

PropTypeNotes
on_hoverCallback<Option<Datum>>The mark under the pointer or keyboard focus changes, or is left. Fires only on a change
on_selectCallback<Datum>Click, tap or Enter on a mark
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