#!/usr/bin/python """ converts the *.log files produced by openambit in ~/.openambit/ to standard gpx format. usage: ./openambit2gpx.py inputfile outputFile """ #from lxml import etree # does not allow namespace prefixes which are required for gpx extensions; everything else in this script would work otherwise with lxml import xml.etree.ElementTree as etree import math import sys ############################## ## getting input parameters ## ############################## fileIn=sys.argv[1] fileOut=sys.argv[2] ########################################### ## setting variables up, starting output ## ########################################### fOut=open(fileOut, 'w') fOut.write("\n\n") fOut.write('') fOut.write(" \n") fOut.write(" \n") rootIn=etree.parse(fileIn) latLast=None lonLast=None timeLast=None altitudeLast=None hrLast=None cadenceLast=None speedLast=None tempLast=None airpressureLast=None latLatest=None lonLatest=None timeGPSLatest=None lapCount=0 lapManCount=0 lapArray=[0] maxLap=0 def utcSplitConvSeconds(utcTime): """ Splits the UTC time code YYYY-MM-DDTHH:MM:SS.SSSZ, keeps only the time part and converts it into seconds. """ import math tmpTime=utcTime.split("T")[1].split("Z")[0].split(":") tmpDay=int(utcTime.split("T")[0].split("-")[2]) secs=float(tmpDay)*24*3600 + float(tmpTime[0])*3600 + float(tmpTime[1])*60 + float(tmpTime[2]) return secs def timeDiff(utcTime1,utcTime2): """ Computes the difference, in seconds, between an earlier (utcTime1) and a later date (utcTime2). Only safe for dates within the same month or less than 2 days apart if on the boundary of a month. """ secs1=utcSplitConvSeconds(utcTime1) secs2=utcSplitConvSeconds(utcTime2) if int(utcTime2.split("T")[0].split("-")[2])==1: secs1-=float(utcTime2.split("T")[0].split("-")[2])*24*3600 # if second date is on a first of a month, then the previous day gets reset to day 0 of the same month return secs2-secs1 ########################### ## getting activity data ## ########################### for element in rootIn.iterfind("Log/Samples/Sample"): trk=etree.Element("trkpt") lat=element.findtext("Latitude") lon=element.findtext("Longitude") time=element.findtext("UTC") altitude=element.findtext("Altitude") if element.findtext("Altitude")!=None else altitudeLast hr=element.findtext("HR") if element.findtext("HR")!=None else hrLast cadence=element.findtext("Cadence") if element.findtext("cadence")!=None else cadenceLast speed=element.findtext("Speed") if element.findtext("Speed")!=None else speedLast temp=str(float(element.findtext("Temperature"))/10) if element.findtext("Temperature")!=None else tempLast airpressure=element.findtext("SeaLevelPressure") if element.findtext("SeaLevelPressure")!=None else airpressureLast sampType=element.findtext("Type") if sampType=="lap-info": lapType=element.findtext("Lap/Type") lapDate=element.findtext("Lap/DateTime") lapDuration=element.findtext("Lap/Duration") lapDistance=element.findtext("Lap/Distance") lapUtc=element.findtext("UTC") lapPreviousLat=latLatest lapPreviousLon=lonLatest lapPreviousTime=timeGPSLatest lapCheck=1 if lapCount==0: lapArray[0]=[lapType,lapDate,lapDuration,lapDistance,lapUtc,lapPreviousLat,lapPreviousLon,lapPreviousTime,0,0,0] else: lapArray.append([lapType,lapDate,lapDuration,lapDistance,lapUtc,lapPreviousLat,lapPreviousLon,lapPreviousTime,0,0,0]) lapCount+=1 if lapType=="Manual": lapManCount+=1 maxLap=lapCount-1 maxManLap=lapManCount if lat!=None and lon!=None: lat=float(lat)/10000000 lon=float(lon)/10000000 trk.set("lat",'{:.8f}'.format(lat)) trk.set("lon",'{:.8f}'.format(lon)) latLatest='{:.8f}'.format(lat) lonLatest='{:.8f}'.format(lon) timeGPSLatest=time if lapCheck==1: lapArray[lapCount-1][8]=latLatest lapArray[lapCount-1][9]=lonLatest lapArray[lapCount-1][10]=timeGPSLatest lapCheck=0 if altitude!=None: etree.SubElement(trk,"ele").text=altitude elif altitudeLast!=None: etree.SubElement(trk,"ele").text=altitudeLast if time!=None: etree.SubElement(trk,"time").text=time elif timeLast!=None: etree.SubElement(trk,"time").text=timeLast if hr!=None or cadence!=None or speed!=None or temp!=None or airpressure!=None: extGpx=etree.SubElement(trk,"extensions") if hr!=None: etree.SubElement(extGpx,"gpxdata:hr").text=hr if cadence!=None: etree.SubElement(extGpx,"gpxdata:cadence").text=cadence if temp!=None: etree.SubElement(extGpx,"gpxdata:atemp").text=temp if speed!=None: etree.SubElement(extGpx,"gpxdata:speed").text=speed if airpressure!=None: etree.SubElement(extGpx,"gpxdata:SeaLevelPressure").text=airpressure fOut.write(" "+etree.tostring(trk)+"\n") latLast=lat lonLast=lon timeLast=time altitudeLast=altitude hrLast=hr cadenceLast=cadence speedLast=speed tempLast=temp airpressureLast=airpressure lat=None lon=None time=None altitude=None hr=None cadence=None speed=None temp=None airpressure=None fOut.write(" \n") fOut.write(" \n") ############################# ## getting lap information ## ############################# lapCount=0 lapManCount=0 previousEndTime=0 fOut.write(" \n") for i in range(0,len(lapArray)): if lapArray[i][0]=='Manual': lapManCount+=1 lap=etree.Element("gpxdata:lap") lap.set("xmlns","http://www.cluetrust.com/XML/GPXDATA/1/0") startTime=lapArray[0][4] if lapCount==0 else previousEndTime previousEndTime=lapArray[i][4] etree.SubElement(lap,'index').text=str(lapCount) etree.SubElement(lap,'startTime').text=startTime etree.SubElement(lap,'elapsedTime').text=str(float(lapArray[i][2])/1000) etree.SubElement(lap,'distance').text=lapArray[i][3] latInterPolSP=lapArray[0][8] if lapCount==0 else previousLatEP lonInterPolSP=lapArray[0][9] if lapCount==0 else previousLonEP if i==maxLap or lapManCount==maxManLap: latInterPolEP=lapArray[i][5] else: t=lapArray[i][4] t1=lapArray[i][7] t2=lapArray[i][10] lat1=float(lapArray[i][5]) lat2=float(lapArray[i][8]) latInterPolEP=str( ((lat2-lat1)/timeDiff(t1,t2))*timeDiff(t1,t) + lat1 ) if i==maxLap or lapManCount==maxManLap: lonInterPolEP=lapArray[i][6] else: t=lapArray[i][4] t1=lapArray[i][7] t2=lapArray[i][10] lon1=float(lapArray[i][6]) lon2=float(lapArray[i][9]) lonInterPolEP=str( ((lon2-lon1)/timeDiff(t1,t2))*timeDiff(t1,t) + lon1 ) previousLatEP=latInterPolEP previousLonEP=lonInterPolEP SP=etree.SubElement(lap,'startPoint') SP.text=' ' SP.set('lat',str(latInterPolSP)) SP.set('lon',str(lonInterPolSP)) EP=etree.SubElement(lap,'endPoint') EP.text=' ' EP.set('lat',str(latInterPolEP)) EP.set('lon',str(lonInterPolEP)) etree.SubElement(lap,'intensity').text='active' trigger=etree.SubElement(lap,'trigger') trigger.text=' ' trigger.set('kind','manual') #the elements below need to be added for the gpx file to be understood; data all set to 0 etree.SubElement(lap,'calories').text='0' sumHrAvg=etree.SubElement(lap,'summary') sumHrAvg.text='0' sumHrAvg.set('kind','avg') sumHrAvg.set('name','hr') sumHrMax=etree.SubElement(lap,'summary') sumHrMax.text='0' sumHrMax.set('kind','max') sumHrMax.set('name','hr') sumCadAvg=etree.SubElement(lap,'summary') sumCadAvg.text='0' sumCadAvg.set('kind','avg') sumCadAvg.set('name','cadence') sumSpeedMax=etree.SubElement(lap,'summary') sumSpeedMax.text='0' sumSpeedMax.set('kind','max') sumSpeedMax.set('name','speed') lapCount+=1 fOut.write(" "+etree.tostring(lap)+"\n") fOut.write(" \n") ######################### ## closing output file ## ######################### fOut.write("\n") fOut.close()