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depth_heatmap.py
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depth_heatmap.py
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import numpy as np
import pandas as pd
import geopandas as gpd
import folium
import rasterio
from folium import plugins
from folium import raster_layers
from folium.plugins import HeatMap
from folium.plugins import MousePosition
from shapely.geometry import Polygon
import os
import webbrowser
from branca.element import Template, MacroElement
file=open('data/depth_small.txt','r')
depth=pd.read_table(file,delimiter=';',names=['long', 'lat', 'depth'])
df_folium = pd.DataFrame({'Lat':depth['lat'],'Long':depth['long'],'Depth':depth['depth']})
df_folium['weight'] = df_folium['Depth'] / df_folium['Depth'].min()
# heatmap based on weight
def generateBaseMap(loc, zoom=4, tiles='OpenStreetMap', crs='ESPG2263'):
return folium.Map(location=loc,
control_scale=True,
zoom_start=zoom,
tiles=tiles)
base_map = generateBaseMap([40, 0] )
map_values1 = df_folium[['Lat','Long','weight']]
data = map_values1.values.tolist()
hm = HeatMap(data, gradient={0.08: 'darkblue', 0.2: 'lime', 0.5: 'yellow', 0.7: 'orange', 1: 'red'},
min_opacity=0.12,
max_opacity=0.9,
radius=10,
use_local_extrema=False)#.add_to(base_map)
base_map.add_child(hm)
template = """
{% macro html(this, kwargs) %}
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>jQuery UI Draggable - Default functionality</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$( function() {
$( "#maplegend" ).draggable({
start: function (event, ui) {
$(this).css({
right: "auto",
top: "auto",
bottom: "auto"
});
}
});
});
</script>
</head>
<body>
<div id='maplegend' class='maplegend'
style='position: absolute; z-index:9999; border:2px solid grey; background-color:rgba(255, 255, 255, 0.8);
border-radius:6px; padding: 10px; font-size:14px; right: 20px; bottom: 20px;'>
<div class='legend-title'>Depth(m) (Draggable 0_o)</div>
<div class='legend-scale'>
<ul class='legend-labels'>
<li><span style='background:blue;opacity:0.7;'></span>0-500</li>
<li><span style='background:lime;opacity:0.7;'></span>500-1300</li>
<li><span style='background:yellow;opacity:0.7;'></span>1300-3200</li>
<li><span style='background:orange;opacity:0.7;'></span>3200-4500</li>
<li><span style='background:red;opacity:0.7;'></span>4500-6500</li>
</ul>
</div>
</div>
</body>
</html>
<style type='text/css'>
.maplegend .legend-title {
text-align: left;
margin-bottom: 5px;
font-weight: bold;
font-size: 90%;
}
.maplegend .legend-scale ul {
margin: 0;
margin-bottom: 5px;
padding: 0;
float: left;
list-style: none;
}
.maplegend .legend-scale ul li {
font-size: 80%;
list-style: none;
margin-left: 0;
line-height: 18px;
margin-bottom: 2px;
}
.maplegend ul.legend-labels li span {
display: block;
float: left;
height: 16px;
width: 30px;
margin-right: 5px;
margin-left: 0;
border: 1px solid #999;
}
.maplegend .legend-source {
font-size: 80%;
color: #777;
clear: both;
}
.maplegend a {
color: #777;
}
</style>
{% endmacro %}"""
macro = MacroElement()
macro._template = Template(template)
base_map.get_root().add_child(macro)
MousePosition().add_to(base_map)
folium.LayerControl().add_to(base_map)
base_map.save('depth_heatmap.html')
webbrowser.open('file://' + os.path.realpath('depth_heatmap.html'))