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hexbin-series.js
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hexbin-series.js
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// Copyright (c) 2016 - 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import React from 'react';
import PropTypes from 'prop-types';
import Animation from 'animation';
import {hexbin} from 'd3-hexbin';
import {scaleLinear} from 'd3-scale';
import {ANIMATED_SERIES_PROPS} from 'utils/series-utils';
import {getCombinedClassName} from 'utils/styling-utils';
import {CONTINUOUS_COLOR_RANGE} from 'theme';
import AbstractSeries from './abstract-series';
const predefinedClassName = 'rv-xy-plot__series rv-xy-plot__series--hexbin';
function getColorDomain({countDomain}, hexes) {
if (countDomain) {
return countDomain;
}
return [0, Math.max(...hexes.map(row => row.length))];
}
class HexbinSeries extends AbstractSeries {
render() {
const {
animation,
className,
colorRange,
data,
innerHeight,
innerWidth,
marginLeft,
marginTop,
radius,
sizeHexagonsWithCount,
style,
xOffset,
yOffset
} = this.props;
if (!data) {
return null;
}
if (animation) {
return (
<Animation {...this.props} animatedProps={ANIMATED_SERIES_PROPS}>
<HexbinSeries {...this.props} animation={null} />
</Animation>
);
}
const x = this._getAttributeFunctor('x');
const y = this._getAttributeFunctor('y');
const hex = hexbin()
.x(d => x(d) + xOffset)
.y(d => y(d) + yOffset)
.radius(radius)
.size([innerWidth, innerHeight]);
const hexagonPath = hex.hexagon();
const hexes = hex(data);
const countDomain = getColorDomain(this.props, hexes);
const color = scaleLinear()
.domain(countDomain)
.range(colorRange);
const size = scaleLinear()
.domain(countDomain)
.range([0, radius]);
return (
<g
className={getCombinedClassName(predefinedClassName, className)}
transform={`translate(${marginLeft},${marginTop})`}
>
{hexes.map((d, i) => {
const attrs = {
style,
d: sizeHexagonsWithCount
? hex.hexagon(size(d.length))
: hexagonPath,
fill: color(d.length),
transform: `translate(${d.x}, ${d.y})`,
onClick: e => this._valueClickHandler(d, e),
onContextMenu: e => this._valueRightClickHandler(d, e),
onMouseOver: e => this._valueMouseOverHandler(d, e),
onMouseOut: e => this._valueMouseOutHandler(d, e)
};
return <path key={String(i)} {...attrs} />;
})}
</g>
);
}
}
HexbinSeries.propTypes = {
...AbstractSeries.propTypes,
radius: PropTypes.number
};
HexbinSeries.defaultProps = {
radius: 20,
colorRange: CONTINUOUS_COLOR_RANGE,
xOffset: 0,
yOffset: 0
};
HexbinSeries.displayName = 'HexbinSeries';
export default HexbinSeries;