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| EI/* eslint no-underscore-dangle: ["error", { "allow": ["", "__timestamp"] }] */
import React from 'react';
import ReactDOM from 'react-dom';
import PropTypes from 'prop-types';
import { ScatterplotLayer } from 'deck.gl';
import AnimatableDeckGLContainer from '../AnimatableDeckGLContainer';
import Legend from '../../Legend';
import * as common from './common';
import { getColorFromScheme, hexToRGB } from '../../../modules/colors';
import { getPlaySliderParams } from '../../../modules/time';
import { unitToRadius } from '../../../modules/geo';
import sandboxedEval from '../../../modules/sandbox';
function getPoints(data) {
return data.map(d => d.position);
}
function getCategories(formData, payload) {
const fd = formData;
const c = fd.color_picker || { r: 0, g: 0, b: 0, a: 1 };
const fixedColor = [c.r, c.g, c.b, 255 * c.a];
const categories = {};
payload.data.features.forEach((d) => {
if (d.cat_color != null && !categories.hasOwnProperty(d.cat_color)) {
let color;
if (fd.dimension) {
color = hexToRGB(getColorFromScheme(d.cat_color, fd.color_scheme), c.a * 255);
} else {
color = fixedColor;
}
categories[d.cat_color] = { color, enabled: true };
}
});
return categories;
}
function getLayer(formData, payload, slice, filters) {
const fd = formData;
const c = fd.color_picker || { r: 0, g: 0, b: 0, a: 1 };
const fixedColor = [c.r, c.g, c.b, 255 * c.a];
let data = payload.data.features.map((d) => {
let radius = unitToRadius(fd.point_unit, d.radius) || 10;
if (fd.multiplier) {
radius *= fd.multiplier;
}
let color;
if (fd.dimension) {
color = hexToRGB(getColorFromScheme(d.cat_color, fd.color_scheme), c.a * 255);
} else {
color = fixedColor;
}
return {
...d,
radius,
color,
};
});
if (fd.js_data_mutator) {
// Applying user defined data mutator if defined
const jsFnMutator = sandboxedEval(fd.js_data_mutator);
data = jsFnMutator(data);
}
if (filters != null) {
filters.forEach((f) => {
data = data.filter(f);
});
}
return new ScatterplotLayer({
id: `scatter-layer-${fd.slice_id}`,
data,
fp64: true,
radiusMinPixels: fd.min_radius || null,
radiusMaxPixels: fd.max_radius || null,
outline: false,
...common.commonLayerProps(fd, slice),
});
}
const propTypes = {
slice: PropTypes.object.isRequired,
payload: PropTypes.object.isRequired,
setControlValue: PropTypes.func.isRequired,
viewport: PropTypes.object.isRequired,
};
class DeckGLScatter extends React.PureComponent {
/* eslint-disable no-unused-vars */
static getDerivedStateFromProps(nextProps, prevState) {
const fd = nextProps.slice.formData;
const timeGrain = fd.time_grain_sqla || fd.granularity || 'PT1M';
const timestamps = nextProps.payload.data.features.map(f => f.__timestamp);
const { start, end, step, values, disabled } = getPlaySliderParams(timestamps, timeGrain);
const categories = getCategories(fd, nextProps.payload);
return { start, end, step, values, disabled, categories };
}
constructor(props) {
super(props);
this.state = DeckGLScatter.getDerivedStateFromProps(props);
this.getLayers = this.getLayers.bind(this);
this.toggleCategory = this.toggleCategory.bind(this);
this.showSingleCategory = this.showSingleCategory.bind(this);
}
componentWillReceiveProps(nextProps) {
this.setState(DeckGLScatter.getDerivedStateFromProps(nextProps, this.state));
}
getLayers(values) {
const filters = [];
// time filter
if (values[0] === values[1] || values[1] === this.end) {
filters.push(d => d.__timestamp >= values[0] && d.__timestamp <= values[1]);
} else {
filters.push(d => d.__timestamp >= values[0] && d.__timestamp < values[1]);
}
// legend filter
if (this.props.slice.formData.dimension) {
filters.push(d => this.state.categories[d.cat_color].enabled);
}
const layer = getLayer(
this.props.slice.formData,
this.props.payload,
this.props.slice,
filters);
return [layer];
}
toggleCategory(category) {
const categoryState = this.state.categories[category];
categoryState.enabled = !categoryState.enabled;
const categories = { ...this.state.categories, [category]: categoryState };
// if all categories are disabled, enable all -- similar to nvd3
if (Object.values(categories).every(v => !v.enabled)) {
/* eslint-disable no-param-reassign */
Object.values(categories).forEach((v) => { v.enabled = true; });
}
this.setState({ categories });
}
showSingleCategory(category) {
const categories = { ...this.state.categories };
/* eslint-disable no-param-reassign */
Object.values(categories).forEach((v) => { v.enabled = false; });
categories[category].enabled = true;
this.setState({ categories });
}
render() {
return (
<div>
<AnimatableDeckGLContainer
getLayers={this.getLayers}
start={this.state.start}
end={this.state.end}
step={this.state.step}
values={this.state.values}
disabled={this.state.disabled}
viewport={this.props.viewport}
mapboxApiAccessToken={this.props.payload.data.mapboxApiKey}
mapStyle={this.props.slice.formData.mapbox_style}
setControlValue={this.props.setControlValue}
>
<Legend
categories={this.state.categories}
toggleCategory={this.toggleCategory}
showSingleCategory={this.showSingleCategory}
position={this.props.slice.formData.legend_position}
/>
</AnimatableDeckGLContainer>
</div>
);
}
}
DeckGLScatter.propTypes = propTypes;
function deckScatter(slice, payload, setControlValue) {
const fd = slice.formData;
let viewport = {
...fd.viewport,
width: slice.width(),
height: slice.height(),
};
if (fd.autozoom) {
viewport = common.fitViewport(viewport, getPoints(payload.data.features));
}
ReactDOM.render(
<DeckGLScatter
slice={slice}
payload={payload}
setControlValue={setControlValue}
viewport={viewport}
/>,
document.getElementById(slice.containerId),
);
}
module.exports = {
default: deckScatter,
getLayer,
};
|