billboard.js
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Re-usable easy interface JavaScript chart library, based on D3 v4+
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JavaScript
/*!
* Copyright (c) 2017 ~ present NAVER Corp.
* billboard.js project is licensed under the MIT license
*
* billboard.js, JavaScript chart library
* https://naver.github.io/billboard.js/
*
* @version 4.0.1
*/
/**
* Copyright (c) 2017 ~ present NAVER Corp.
* billboard.js project is licensed under the MIT license
*/
/**
* Chart type constant
* @private
*/
const TYPE = {
AREA: "area",
AREA_LINE_RANGE: "area-line-range",
AREA_SPLINE: "area-spline",
AREA_SPLINE_RANGE: "area-spline-range",
AREA_STEP: "area-step",
AREA_STEP_RANGE: "area-step-range",
BAR: "bar",
BUBBLE: "bubble",
CANDLESTICK: "candlestick",
DONUT: "donut",
FUNNEL: "funnel",
GAUGE: "gauge",
LINE: "line",
PIE: "pie",
POLAR: "polar",
RADAR: "radar",
SCATTER: "scatter",
SPLINE: "spline",
STEP: "step",
TREEMAP: "treemap"
};
/**
* Optional API modules and their resolver module name.
* Used by checkApiModuleImport() to surface a helpful error when a user calls
* chart.export() / chart.flow() without importing the matching resolver.
* @private
*/
const API_MODULE_NEEDED = {
export: "exportApi",
flow: "flow",
xgrids: "grid",
ygrids: "grid",
regions: "regions",
category: "category",
categories: "category"
};
/**
* Axis rendering constants shared by SVG and canvas renderers.
* @private
*/
const AXIS_DEFAULT_TICK_COUNT = 10;
const AXIS_TICK_SIZE = 6;
const AXIS_TICK_PADDING = 3;
const AXIS_TICK_LENGTH = AXIS_TICK_SIZE + AXIS_TICK_PADDING;
const AXIS_TICK_LINE_OVERLAP_PADDING = 1;
/**
* Subchart brush handle path constants shared by SVG and canvas renderers.
* @private
*/
const SUBCHART_BRUSH_HANDLE_PATH = {
x: {
start: "M0 -8.5 A6 6 0 0 0 -6.5 -3.5 V2.5 A6 6 0 0 0 0 8.5 Z M-2 -3.5 V3.5 M-4 -3.5 V3.5z",
end: "M0 -8.5 A6 6 0 0 1 6.5 -3.5 V2.5 A6 6 0 0 1 0 8.5 Z M2 -3.5 V3.5 M4 -3.5 V3.5z"
},
y: {
start: "M8.5 0 a6 6 0 0 0 -6 -6.5 H-2.5 a 6 6 0 0 0 -6 6.5 z m-5 -2 H-3.5 m7 -2 H-3.5z",
end: "M8.5 0 a6 -6 0 0 1 -6 6.5 H-2.5 a 6 -6 0 0 1 -6 -6.5z m-5 2 H-3.5 m7 2 H-3.5z"
}
};
/**
* Chart type module and its method from ChartInternal class, needed to be initialized.
* @private
*/
const TYPE_METHOD_NEEDED = {
AREA: "initArea",
AREA_LINE_RANGE: "initArea",
AREA_SPLINE: "initArea",
AREA_SPLINE_RANGE: "initArea",
AREA_STEP: "initArea",
AREA_STEP_RANGE: "initArea",
BAR: "initBar",
BUBBLE: "initCircle",
CANDLESTICK: "initCandlestick",
DONUT: "initArc",
FUNNEL: "initFunnel",
GAUGE: "initArc",
LINE: "initLine",
PIE: "initArc",
POLAR: "initPolar",
RADAR: "initCircle",
SCATTER: "initCircle",
SPLINE: "initLine",
STEP: "initLine",
TREEMAP: "initTreemap"
};
/**
* chart types by category
* @private
*/
const TYPE_BY_CATEGORY = {
Area: [
TYPE.AREA,
TYPE.AREA_SPLINE,
TYPE.AREA_SPLINE_RANGE,
TYPE.AREA_LINE_RANGE,
TYPE.AREA_STEP,
TYPE.AREA_STEP_RANGE
],
AreaRange: [
TYPE.AREA_SPLINE_RANGE,
TYPE.AREA_LINE_RANGE,
TYPE.AREA_STEP_RANGE
],
Arc: [
TYPE.PIE,
TYPE.DONUT,
TYPE.GAUGE,
TYPE.POLAR,
TYPE.RADAR
],
Line: [
TYPE.LINE,
TYPE.SPLINE,
TYPE.AREA,
TYPE.AREA_SPLINE,
TYPE.AREA_SPLINE_RANGE,
TYPE.AREA_LINE_RANGE,
TYPE.STEP,
TYPE.AREA_STEP,
TYPE.AREA_STEP_RANGE
],
Step: [
TYPE.STEP,
TYPE.AREA_STEP,
TYPE.AREA_STEP_RANGE
],
Spline: [
TYPE.SPLINE,
TYPE.AREA_SPLINE,
TYPE.AREA_SPLINE_RANGE
]
};
export { API_MODULE_NEEDED, AXIS_DEFAULT_TICK_COUNT, AXIS_TICK_LENGTH, AXIS_TICK_LINE_OVERLAP_PADDING, AXIS_TICK_PADDING, AXIS_TICK_SIZE, SUBCHART_BRUSH_HANDLE_PATH, TYPE, TYPE_BY_CATEGORY, TYPE_METHOD_NEEDED };