mirror of
https://github.com/visgl/react-map-gl.git
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95 lines
3.0 KiB
JavaScript
95 lines
3.0 KiB
JavaScript
// Copyright (c) 2015 Uber Technologies, Inc.
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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'use strict';
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var assign = require('object-assign');
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var React = require('react');
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var r = require('r-dom');
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var Immutable = require('immutable');
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var d3 = require('d3');
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var MapGL = require('../../src/index.js');
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var ScatterplotOverlay = require('../../src/overlays/scatterplot.react');
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// San Francisco
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var location = require('./../data/cities.json')[0];
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var normal = d3.random.normal();
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function wiggle(scale) {
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return normal() * scale;
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}
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// Example data.
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var locations = Immutable.fromJS(d3.range(4000).map(function _map() {
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return [location.latitude + wiggle(0.01), location.longitude + wiggle(0.01)];
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}));
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var ScatterplotOverlayExample = React.createClass({
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displayName: 'ScatterplotOverlayExample',
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PropTypes: {
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width: React.PropTypes.number.isRequired,
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height: React.PropTypes.number.isRequired
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},
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getInitialState: function getInitialState() {
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return {
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latitude: location.latitude,
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longitude: location.longitude,
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zoom: 11,
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startDragLatLng: null,
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isDragging: false
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};
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},
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_onChangeViewport: function _onChangeViewport(opt) {
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this.setState({
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latitude: opt.latitude,
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longitude: opt.longitude,
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zoom: opt.zoom,
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startDragLatLng: opt.startDragLatLng,
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isDragging: opt.isDragging
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});
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},
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render: function render() {
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return r(MapGL, assign({
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latitude: this.state.latitude,
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longitude: this.state.longitude,
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zoom: this.state.zoom,
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isDragging: this.state.isDragging,
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startDragLatLng: this.state.startDragLatLng,
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width: this.props.width,
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height: this.props.height,
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onChangeViewport: this.props.onChangeViewport || this._onChangeViewport
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}, this.props), [
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r(ScatterplotOverlay, {
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locations: locations,
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dotRadius: 2,
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globalOpacity: 1,
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compositeOperation: 'screen'
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})
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]);
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}
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});
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module.exports = ScatterplotOverlayExample;
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