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{ | ||
"cells": [ | ||
{ | ||
"cell_type": "markdown", | ||
"metadata": {}, | ||
"source": [ | ||
"# Mapboxgl Python Library\n", | ||
"\n", | ||
"https://github.com/mapbox/mapboxgl-jupyter" | ||
] | ||
}, | ||
{ | ||
"cell_type": "code", | ||
"execution_count": null, | ||
"metadata": {}, | ||
"outputs": [], | ||
"source": [ | ||
"import pandas as pd\n", | ||
"import sys\n", | ||
"import os\n", | ||
"\n", | ||
"from mapboxgl.viz import *\n", | ||
"from mapboxgl.utils import *\n", | ||
"from mapboxgl.colors import *\n", | ||
"\n", | ||
"# Must be a public token, starting with `pk`\n", | ||
"token = os.getenv('MAPBOX_ACCESS_TOKEN')\n", | ||
"\n", | ||
"with open('us-states.geojson', 'r') as f:\n", | ||
" data = json.load(f)" | ||
] | ||
}, | ||
{ | ||
"cell_type": "markdown", | ||
"metadata": {}, | ||
"source": [ | ||
"## Chloropleths with interpolated color assignment" | ||
] | ||
}, | ||
{ | ||
"cell_type": "code", | ||
"execution_count": null, | ||
"metadata": {}, | ||
"outputs": [], | ||
"source": [ | ||
"sample_color_stops = [\n", | ||
" [0.0, 'rgb(255,255,204)'],\n", | ||
" [100.0, 'rgb(255,237,160)'],\n", | ||
" [500.0, 'rgb(253,141,60)'],\n", | ||
" [2000.0, 'rgb(227,26,28)'],\n", | ||
" [5000.0, 'rgb(189,0,38)'],\n", | ||
" [10000.0,'rgb(128,0,38)']\n", | ||
"]\n", | ||
" \n", | ||
" \n", | ||
"viz = ChloroplethViz(data, opacity=0.8)\n", | ||
"viz.color_property = 'density'\n", | ||
"viz.color_stops = sample_color_stops\n", | ||
"viz.color_function_type = 'interpolate'\n", | ||
"viz.default_color = '#bada55'\n", | ||
"viz.center = (-96, 37.8)\n", | ||
"viz.zoom = 3\n", | ||
"viz.below_layer = 'waterway-label'\n", | ||
"viz.show()" | ||
] | ||
}, | ||
{ | ||
"cell_type": "markdown", | ||
"metadata": {}, | ||
"source": [ | ||
"## Chloropleths with match-type color scheme" | ||
] | ||
}, | ||
{ | ||
"cell_type": "code", | ||
"execution_count": null, | ||
"metadata": {}, | ||
"outputs": [], | ||
"source": [ | ||
"match_color_stops = [\n", | ||
" ['Massachusetts', 'rgb(46,204,113)'],\n", | ||
" ['Utah', 'rgb(231,76,60)'],\n", | ||
" ['California', 'rgb(142,68,173)'],\n", | ||
"]\n", | ||
" \n", | ||
"viz = ChloroplethViz(data, opacity=0.8)\n", | ||
"viz.color_property = 'name'\n", | ||
"viz.color_stops = match_color_stops\n", | ||
"viz.color_function_type = 'match'\n", | ||
"viz.color_default = 'rgba(52,73,94,0.5)'\n", | ||
"viz.center = (-96, 37.8)\n", | ||
"viz.zoom = 3\n", | ||
"viz.below_layer = 'waterway-label'\n", | ||
"viz.show()" | ||
] | ||
} | ||
], | ||
"metadata": { | ||
"anaconda-cloud": { | ||
"attach-environment": true, | ||
"environment": "Root", | ||
"summary": "Mapboxgl Python Data Visualization example" | ||
}, | ||
"kernelspec": { | ||
"display_name": "Python 3", | ||
"language": "python", | ||
"name": "python3" | ||
}, | ||
"language_info": { | ||
"codemirror_mode": { | ||
"name": "ipython", | ||
"version": 3 | ||
}, | ||
"file_extension": ".py", | ||
"mimetype": "text/x-python", | ||
"name": "python", | ||
"nbconvert_exporter": "python", | ||
"pygments_lexer": "ipython3", | ||
"version": "3.6.1" | ||
} | ||
}, | ||
"nbformat": 4, | ||
"nbformat_minor": 1 | ||
} |
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{% extends "main.html" %} | ||
|
||
<style type='text/css'> | ||
.legend div span { | ||
border-radius: 20%; | ||
} | ||
</style> | ||
|
||
{% block javascript %} | ||
var legend = document.getElementById('legend'); | ||
|
||
mapboxgl.accessToken = '{{ accessToken }}'; | ||
|
||
var map = new mapboxgl.Map({ | ||
container: 'map', | ||
style: '{{ styleUrl }}', | ||
center: {{ center }}, | ||
zoom: {{ zoom }}, | ||
transformRequest: (url, resourceType)=> { | ||
if ( url.slice(0,22) == 'https://api.mapbox.com' ) { | ||
//Add Python Plugin identifier for Mapbox API traffic | ||
return { | ||
url: [url.slice(0, url.indexOf("?")+1), "pluginName=PythonMapboxgl&", url.slice(url.indexOf("?")+1)].join('') | ||
} | ||
} | ||
else { | ||
//Do not transform URL for non Mapbox GET requests | ||
return {url: url} | ||
} | ||
} | ||
}); | ||
|
||
map.addControl(new mapboxgl.NavigationControl()); | ||
|
||
calcCircleColorLegend({{ colorStops }}, "{{ colorProperty }}"); | ||
|
||
map.on('style.load', function() { | ||
|
||
// Add geojson data source | ||
map.addSource("data", { | ||
"type": "geojson", | ||
"data": {{ geojson_data }}, | ||
"buffer": 1, | ||
"maxzoom": 14 | ||
}); | ||
|
||
// Add data layer | ||
map.addLayer({ | ||
"id": "chloropleth-fill", | ||
"source": "data", | ||
"type": "fill", | ||
"paint": { | ||
"fill-color": generatePropertyExpression("{{ colorType }}", "{{ colorProperty }}", {{ colorStops }}, "{{ defaultColor }}"), | ||
"fill-opacity": {{ opacity }} | ||
} | ||
}, "{{ belowLayer }}" ); | ||
|
||
// Add data layer | ||
map.addLayer({ | ||
"id": "chloropleth-line", | ||
"source": "data", | ||
"type": "line", | ||
"layout": { | ||
"line-join": "round", | ||
"line-cap": "round" | ||
}, | ||
"paint": { | ||
{% if lineDashArray %} | ||
"line-dasharray": {{ lineDashArray }}, | ||
{% endif %} | ||
"line-color": "{{ lineColor }}", | ||
"line-width": {{ lineWidth }}, | ||
"line-opacity": {{ opacity }} | ||
} | ||
}, "{{ belowLayer }}" ); | ||
|
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// Create a popup | ||
var popup = new mapboxgl.Popup({ | ||
closeButton: false, | ||
closeOnClick: false | ||
}); | ||
|
||
// Show the popup on mouseover | ||
map.on('mousemove', 'chloropleth-fill', function(e) { | ||
map.getCanvas().style.cursor = 'pointer'; | ||
|
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let f = e.features[0]; | ||
let popup_html = '<div>'; | ||
|
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for (key in f.properties) { | ||
popup_html += '<li><b> ' + key + '</b>: ' + f.properties[key] + ' </li>' | ||
} | ||
|
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popup_html += '</div>' | ||
popup.setLngLat(e.lngLat) | ||
.setHTML(popup_html) | ||
.addTo(map); | ||
}); | ||
|
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map.on('mouseleave', 'chloropleth-fill', function() { | ||
map.getCanvas().style.cursor = ''; | ||
popup.remove(); | ||
}); | ||
|
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// Fly to on click | ||
map.on('click', 'chloropleth-fill', function(e) { | ||
map.flyTo({ | ||
center: e.lngLat, | ||
zoom: map.getZoom() + 1 | ||
}); | ||
}); | ||
|
||
}); | ||
{% endblock %} |
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