Mar 25, 2010
Changed example title and moved to python directory
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def getChart(chartData, chartDataScaling="-500,5000", chartType="lc",chartLabel="Elevation in Meters",chartSize="500x160", chartColor="orange", **chart_args): |
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chart_args.update({ |
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'cht': chartType, |
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'chs': chartSize, |
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'chl': chartLabel, |
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'chco': chartColor, |
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'chds': chartDataScaling, |
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'chxt': 'x,y', |
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'chxr': '1,-500,5000' |
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}) |
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dataString = 't:' + ','.join(str(x) for x in chartData) |
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chart_args['chd'] = dataString.strip(',') |
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chartUrl = CHART_BASE_URL + '?' + urllib.urlencode(chart_args) |
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print("") |
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print("Elevation Chart URL:") |
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print("") |
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print chartUrl |
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def getElevation(path="36.578581,-118.291994|36.23998,-116.83171",samples="100",sensor="false", **elvtn_args): |
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elvtn_args.update({ |
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'path': path, |
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'samples': samples, |
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'sensor': sensor |
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}) |
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url = ELEVATION_BASE_URL + '?' + urllib.urlencode(elvtn_args) |
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response = simplejson.load(urllib.urlopen(url)) |
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# Create a dictionary for each results[] object |
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elevationArray = [] |
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for resultset in response['results']: |
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elevationArray.append(resultset['elevation']) |
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# Create the chart passing the array of elevation data |
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getChart(chartData=elevationArray) |
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if __name__ == '__main__': |
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print("") |
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print("Elevation Chart Maker 1.0") |
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print("") |
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print("The following service calculates elevation data between two points") |
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print("and builds an HTTP chart using Google's Elevation service and Chart API") |
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print("") |
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# Collect the Latitude/Longitude input string |
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# from the user |
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startStr = raw_input('Enter the start latitude,longitude value (default Mt. Whitney) --> ').replace(' ','') |
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if not startStr: |
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startStr = "36.578581,-118.291994" |
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endStr = raw_input('Enter the end latitude,longitude value (default Death Valley) --> ').replace(' ','') |
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if not endStr: |
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endStr = "36.23998,-116.83171" |
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pathStr = startStr + "|" + endStr |
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getElevation(pathStr) |
