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<div class="moz-cite-prefix">Hi Fred,<br>
<br>
see the Helper class with multiple possibilities, depending on how
precise or fast you want to have it:<br>
DistanceCalcEarth (haversine base, most precise)<br>
DistanceCalc3D (like DistanceCalcEarth but with elevation)<br>
DistancePlaneProjection (less precise than DistanceCalcEarth but
faster, precise enough for small distances)<br>
DistanceCalc2D (pythagoras based, not precise but probably
fastest)<br>
<br>
And then use the calcDist method<br>
<br>
Regards,<br>
Peter<br>
<br>
<br>
On 15.07.2015 14:37, Lau wrote:<br>
</div>
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<p class="MsoNormal" style="text-autospace:none"><b><span
style="font-size:10.0pt;font-family:"Courier
New";color:#7F0055">private</span></b><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> </span><b><span
style="font-size:10.0pt;font-family:"Courier
New";color:#7F0055">static</span></b><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> Double <span
style="background:silver;mso-highlight:silver">distance</span>(Location
one, Location two) {</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> </span><b><span
style="font-size:10.0pt;font-family:"Courier
New";color:#7F0055">int</span></b><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> R = 6371000;</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> Double dLat = <i>toRad</i>(two.getLatitude()
- one.getLatitude());</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> Double dLon = <i>toRad</i>(two.getLongitude()
- one.getLongitude());</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> Double lat1 = <i>toRad</i>(one.getLatitude());</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> Double lat2 = <i>toRad</i>(two.getLatitude());</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> Double a = Math.<i>sin</i>(dLat
/ 2) * Math.<i>sin</i>(dLat / 2) + Math.<i>sin</i>(dLon / 2)</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> * Math.<i>sin</i>(dLon
/ 2) * Math.<i>cos</i>(lat1) * Math.<i>cos</i>(lat2);</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> Double c = 2 * Math.<i>atan2</i>(Math.<i>sqrt</i>(a),
Math.<i>sqrt</i>(1 - a));</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> Double d = R * c;</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> </span><b><span
style="font-size:10.0pt;font-family:"Courier
New";color:#7F0055">return</span></b><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> d;</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:black"> }</span><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="ES">De:</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif""
lang="ES"> Fred Laurent [<a class="moz-txt-link-freetext" href="mailto:fredlaurent31@gmail.com">mailto:fredlaurent31@gmail.com</a>] <br>
<b>Enviado el:</b> Wednesday, 15 July, 2015 7:15 AM<br>
<b>Para:</b> GraphHopper Java routing engine<br>
<b>Asunto:</b> [GraphHopper] compyte Distance<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">Hello , is it possible in GH to compute
the distance from my current Location
(Curreent_lat,Current_lon)to a position B(B_lat,B_lon)
using CalcDist for example ? <o:p></o:p></p>
</div>
<p class="MsoNormal">thank you<o:p></o:p></p>
</div>
</div>
<br>
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<pre wrap="">_______________________________________________
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