DirectionsStatusCode GetDirectionsUrl(string url, out GDirections direction)
{
DirectionsStatusCode ret = DirectionsStatusCode.UNKNOWN_ERROR;
direction = null;
try
{
string route = GMaps.Instance.UseRouteCache
? Cache.Instance.GetContent(url, CacheType.DirectionsCache, TimeSpan.FromHours(TTLCache))
: string.Empty;
if (string.IsNullOrEmpty(route))
{
route = GetContentUsingHttp(url);
if (!string.IsNullOrEmpty(route))
{
if (GMaps.Instance.UseRouteCache)
{
Cache.Instance.SaveContent(url, CacheType.DirectionsCache, route);
}
}
}
#region -- gpx response --
//<?xml version="1.0" encoding="UTF-8"?>
//<gpx creator="" version="1.1" xmlns="http://www.topografix.com/GPX/1/1"
// xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
// xsi:schemaLocation="http://www.topografix.com/GPX/1/1 gpx.xsd ">
// <extensions>
// <distance>293</distance>
// <time>34</time>
// <start>Perckhoevelaan</start>
// <end>Goudenregenlaan</end>
// </extensions>
// <wpt lat="51.17702" lon="4.39630" />
// <wpt lat="51.17656" lon="4.39655" />
// <wpt lat="51.17639" lon="4.39670" />
// <wpt lat="51.17612" lon="4.39696" />
// <wpt lat="51.17640" lon="4.39767" />
// <wpt lat="51.17668" lon="4.39828" />
// <wpt lat="51.17628" lon="4.39874" />
// <wpt lat="51.17618" lon="4.39888" />
// <rte>
// <rtept lat="51.17702" lon="4.39630">
// <desc>Head south on Perckhoevelaan, 0.1 km</desc>
// <extensions>
// <distance>111</distance>
// <time>13</time>
// <offset>0</offset>
// <distance-text>0.1 km</distance-text>
// <direction>S</direction>
// <azimuth>160.6</azimuth>
// </extensions>
// </rtept>
// <rtept lat="51.17612" lon="4.39696">
// <desc>Turn left at Laarstraat, 0.1 km</desc>
// <extensions>
// <distance>112</distance>
// <time>13</time>
// <offset>3</offset>
// <distance-text>0.1 km</distance-text>
// <direction>NE</direction>
// <azimuth>58.1</azimuth>
// <turn>TL</turn>
// <turn-angle>269.0</turn-angle>
// </extensions>
// </rtept>
// <rtept lat="51.17668" lon="4.39828">
// <desc>Turn right at Goudenregenlaan, 70 m</desc>
// <extensions>
// <distance>70</distance>
// <time>8</time>
// <offset>5</offset>
// <distance-text>70 m</distance-text>
// <direction>SE</direction>
// <azimuth>143.4</azimuth>
// <turn>TR</turn>
// <turn-angle>89.8</turn-angle>
// </extensions>
// </rtept>
// </rte>
//</gpx>
#endregion
if (!string.IsNullOrEmpty(route))
{
XmlDocument xmldoc = new XmlDocument();
xmldoc.LoadXml(route);
XmlNamespaceManager xmlnsManager = new XmlNamespaceManager(xmldoc.NameTable);
xmlnsManager.AddNamespace("sm", "http://www.topografix.com/GPX/1/1");
XmlNodeList wpts = xmldoc.SelectNodes("/sm:gpx/sm:wpt", xmlnsManager);
if (wpts != null && wpts.Count > 0)
{
ret = DirectionsStatusCode.OK;
direction = new GDirections();
direction.Route = new List <PointLatLng>();
foreach (XmlNode w in wpts)
{
double lat = double.Parse(w.Attributes["lat"].InnerText, CultureInfo.InvariantCulture);
double lng = double.Parse(w.Attributes["lon"].InnerText, CultureInfo.InvariantCulture);
direction.Route.Add(new PointLatLng(lat, lng));
}
if (direction.Route.Count > 0)
{
direction.StartLocation = direction.Route[0];
direction.EndLocation = direction.Route[direction.Route.Count - 1];
}
XmlNode n = xmldoc.SelectSingleNode("/sm:gpx/sm:metadata/sm:copyright/sm:license",
xmlnsManager);
if (n != null)
{
direction.Copyrights = n.InnerText;
}
n = xmldoc.SelectSingleNode("/sm:gpx/sm:extensions/sm:distance", xmlnsManager);
if (n != null)
{
direction.Distance = n.InnerText + "m";
}
n = xmldoc.SelectSingleNode("/sm:gpx/sm:extensions/sm:time", xmlnsManager);
if (n != null)
{
direction.Duration = n.InnerText + "s";
}
n = xmldoc.SelectSingleNode("/sm:gpx/sm:extensions/sm:start", xmlnsManager);
if (n != null)
{
direction.StartAddress = n.InnerText;
}
n = xmldoc.SelectSingleNode("/sm:gpx/sm:extensions/sm:end", xmlnsManager);
if (n != null)
{
direction.EndAddress = n.InnerText;
}
wpts = xmldoc.SelectNodes("/sm:gpx/sm:rte/sm:rtept", xmlnsManager);
if (wpts != null && wpts.Count > 0)
{
direction.Steps = new List <GDirectionStep>();
foreach (XmlNode w in wpts)
{
GDirectionStep step = new GDirectionStep();
double lat = double.Parse(w.Attributes["lat"].InnerText, CultureInfo.InvariantCulture);
double lng = double.Parse(w.Attributes["lon"].InnerText, CultureInfo.InvariantCulture);
step.StartLocation = new PointLatLng(lat, lng);
XmlNode nn = w.SelectSingleNode("sm:desc", xmlnsManager);
if (nn != null)
{
step.HtmlInstructions = nn.InnerText;
}
nn = w.SelectSingleNode("sm:extensions/sm:distance-text", xmlnsManager);
if (nn != null)
{
step.Distance = nn.InnerText;
}
nn = w.SelectSingleNode("sm:extensions/sm:time", xmlnsManager);
if (nn != null)
{
step.Duration = nn.InnerText + "s";
}
direction.Steps.Add(step);
}
}
}
}
}
catch (Exception ex)
{
ret = DirectionsStatusCode.EXCEPTION_IN_CODE;
direction = null;
Debug.WriteLine("GetDirectionsUrl: " + ex);
}
return(ret);
}
DirectionsStatusCode GetDirectionsUrl(string url, out GDirections direction)
{
DirectionsStatusCode ret = DirectionsStatusCode.UNKNOWN_ERROR;
direction = null;
try
{
string kml = GMaps.Instance.UseDirectionsCache ? Cache.Instance.GetContent(url, CacheType.DirectionsCache) : string.Empty;
bool cache = false;
if (string.IsNullOrEmpty(kml))
{
kml = GetContentUsingHttp(url);
if (!string.IsNullOrEmpty(kml))
{
cache = true;
}
}
if (!string.IsNullOrEmpty(kml))
{
#region -- kml response --
//<?xml version="1.0" encoding="UTF-8"?>
//<DirectionsResponse>
// <status>OK</status>
// <route>
// <summary>A1/E85</summary>
// <leg>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.6893800</lat>
// <lng>25.2800500</lng>
// </start_location>
// <end_location>
// <lat>54.6907800</lat>
// <lng>25.2798000</lng>
// </end_location>
// <polyline>
// <points>soxlIiohyCYLkCJ}@Vs@?</points>
// </polyline>
// <duration>
// <value>32</value>
// <text>1 min</text>
// </duration>
// <html_instructions>Head <b>north</b> on <b>Vilniaus gatvė</b> toward <b>Tilto gatvė</b></html_instructions>
// <distance>
// <value>157</value>
// <text>0.2 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.6907800</lat>
// <lng>25.2798000</lng>
// </start_location>
// <end_location>
// <lat>54.6942500</lat>
// <lng>25.2621300</lng>
// </end_location>
// <polyline>
// <points>kxxlIwmhyCmApUF`@GvAYpD{@dGcCjIoIvOuAhDwAtEa@vBUnDAhB?~AThDRxAh@hBtAdC</points>
// </polyline>
// <duration>
// <value>133</value>
// <text>2 mins</text>
// </duration>
// <html_instructions>Turn <b>left</b> onto <b>A. Goštauto gatvė</b></html_instructions>
// <distance>
// <value>1326</value>
// <text>1.3 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.6942500</lat>
// <lng>25.2621300</lng>
// </start_location>
// <end_location>
// <lat>54.6681200</lat>
// <lng>25.2377500</lng>
// </end_location>
// <polyline>
// <points>anylIi_eyC`AwD~@oBLKr@K`U|FdF|@`J^~E[j@Lh@\hB~Bn@tBZhBLrC?zIJ~DzA~OVrELlG^lDdAtDh@hAfApA`EzCvAp@jUpIpAl@bBpAdBpBxA|BdLpV`BxClAbBhBlBbChBpBhAdAXjBHlE_@t@?|@Lt@X</points>
// </polyline>
// <duration>
// <value>277</value>
// <text>5 mins</text>
// </duration>
// <html_instructions>Turn <b>left</b> to merge onto <b>Geležinio Vilko gatvė</b></html_instructions>
// <distance>
// <value>3806</value>
// <text>3.8 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.6681200</lat>
// <lng>25.2377500</lng>
// </start_location>
// <end_location>
// <lat>54.6584100</lat>
// <lng>25.1411300</lng>
// </end_location>
// <polyline>
// <points>wjtlI}f`yC~FhBlFr@jD|A~EbC~VjNxBbBdA`BnvA|zCba@l`Bt@tDTbBJpBBfBMvDaAzF}bBjiF{HnXiHxZ</points>
// </polyline>
// <duration>
// <value>539</value>
// <text>9 mins</text>
// </duration>
// <html_instructions>Continue onto <b>Savanorių prospektas</b></html_instructions>
// <distance>
// <value>8465</value>
// <text>8.5 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.6584100</lat>
// <lng>25.1411300</lng>
// </start_location>
// <end_location>
// <lat>54.9358200</lat>
// <lng>23.9260000</lng>
// </end_location>
// <polyline>
// <points>anrlIakmxCiq@|qCuBbLcK~n@wUrkAcPnw@gCnPoQt}AoB`MuAdHmAdFoCtJqClImBxE{DrIkQ|ZcEvIkDzIcDhKyBxJ{EdXuCtS_G`g@mF|\eF`WyDhOiE~NiErMaGpOoj@ppAoE|K_EzKeDtKkEnOsLnd@mDzLgI~U{FrNsEvJoEtI_FpI{J`O_EjFooBf_C{GdJ_FjIsH`OoFhMwH`UcDtL{CzMeDlQmAzHuU~bBiArIwApNaBfWaLfiCoBpYsDf\qChR_FlVqEpQ_ZbfA}CfN{A~HwCtRiAfKmBlVwBx[gBfRcBxMaLdp@sXrzAaE~UqCzRyC`[_q@z|LgC|e@m@vNqp@b}WuLraFo@jPaS~bDmJryAeo@v|G}CnWsm@~`EoKvo@kv@lkEkqBrlKwBvLkNj|@cu@`~EgCnNuiBpcJakAx|GyB`KqdC~fKoIfYicAxtCiDrLu@hDyBjQm@xKoGdxBmQhoGuUn|Dc@nJ[`OW|VaEn|Ee@`X</points>
// </polyline>
// <duration>
// <value>3506</value>
// <text>58 mins</text>
// </duration>
// <html_instructions>Continue onto <b>A1/E85</b></html_instructions>
// <distance>
// <value>85824</value>
// <text>85.8 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.9358200</lat>
// <lng>23.9260000</lng>
// </start_location>
// <end_location>
// <lat>54.9376500</lat>
// <lng>23.9195600</lng>
// </end_location>
// <polyline>
// <points>{shnIo``qCQ^MnD[lBgA`DqBdEu@xB}@zJCjB</points>
// </polyline>
// <duration>
// <value>39</value>
// <text>1 min</text>
// </duration>
// <html_instructions>Take the exit toward <b>Senamiestis/Aleksotas</b></html_instructions>
// <distance>
// <value>476</value>
// <text>0.5 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.9376500</lat>
// <lng>23.9195600</lng>
// </start_location>
// <end_location>
// <lat>54.9361300</lat>
// <lng>23.9189700</lng>
// </end_location>
// <polyline>
// <points>i_inIgx~pCnHtB</points>
// </polyline>
// <duration>
// <value>28</value>
// <text>1 min</text>
// </duration>
// <html_instructions>Turn <b>left</b> onto <b>Kleboniškio gatvė</b></html_instructions>
// <distance>
// <value>173</value>
// <text>0.2 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.9361300</lat>
// <lng>23.9189700</lng>
// </start_location>
// <end_location>
// <lat>54.9018900</lat>
// <lng>23.8937000</lng>
// </end_location>
// <polyline>
// <points>yuhnIqt~pCvAb@JLrOvExSdHvDdAv`@pIpHnAdl@hLdB`@nDvAtEjDdCvCjLzOvAzBhC`GpHfRbQd^`JpMPt@ClA</points>
// </polyline>
// <duration>
// <value>412</value>
// <text>7 mins</text>
// </duration>
// <html_instructions>Continue onto <b>Jonavos gatvė</b></html_instructions>
// <distance>
// <value>4302</value>
// <text>4.3 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.9018900</lat>
// <lng>23.8937000</lng>
// </start_location>
// <end_location>
// <lat>54.8985600</lat>
// <lng>23.8933400</lng>
// </end_location>
// <polyline>
// <points>y_bnIsvypCMf@FnARlAf@zAl@^v@EZ_@pAe@x@k@xBPpA@pAQNSf@oB</points>
// </polyline>
// <duration>
// <value>69</value>
// <text>1 min</text>
// </duration>
// <html_instructions>At the roundabout, take the <b>3rd</b> exit and stay on <b>Jonavos gatvė</b></html_instructions>
// <distance>
// <value>478</value>
// <text>0.5 km</text>
// </distance>
// </step>
// <step>
// <travel_mode>DRIVING</travel_mode>
// <start_location>
// <lat>54.8985600</lat>
// <lng>23.8933400</lng>
// </start_location>
// <end_location>
// <lat>54.8968500</lat>
// <lng>23.8930000</lng>
// </end_location>
// <polyline>
// <points>_kanIktypCbEx@pCH</points>
// </polyline>
// <duration>
// <value>38</value>
// <text>1 min</text>
// </duration>
// <html_instructions>Turn <b>right</b> onto <b>A. Mapu gatvė</b><div style="font-size:0.9em">Destination will be on the right</div></html_instructions>
// <distance>
// <value>192</value>
// <text>0.2 km</text>
// </distance>
// </step>
// <duration>
// <value>5073</value>
// <text>1 hour 25 mins</text>
// </duration>
// <distance>
// <value>105199</value>
// <text>105 km</text>
// </distance>
// <start_location>
// <lat>54.6893800</lat>
// <lng>25.2800500</lng>
// </start_location>
// <end_location>
// <lat>54.8968500</lat>
// <lng>23.8930000</lng>
// </end_location>
// <start_address>Vilnius, Lithuania</start_address>
// <end_address>Kaunas, Lithuania</end_address>
// </leg>
// <copyrights>Map data ©2011 Tele Atlas</copyrights>
// <overview_polyline>
// <points>soxlIiohyCYL}Fb@mApUF`@GvAYpD{@dGcCjIoIvOwBpFy@xC]jBSxCC~E^~Er@lCtAdC`AwD~@oB`AW`U|FdF|@`J^~E[tAj@hB~BjA~ELrCJzOzA~Od@`N^lDdAtDt@xAjAnApDlCbXbKpAl@bBpAdBpBxA|BdLpV`BxCvDpEbChBpBhAdAXjBHbG_@|@LtHbClFr@jK`F~VjNxBbB`@h@rwAt|Cba@l`BjAxGNxEMvDaAzF}bBjiFcFbQ_y@|gD{CxMeBnJcK~n@wh@dkCkAlIoQt}AeEfV}EzQqClImBxE{DrIkQ|ZcEvIkDzIcDhKyBxJ{EdXuCtS_G`g@mF|\eF`WyDhOiE~NiErMaGpOoj@ppAoE|K_EzKeDtKmXzbAgI~U{FrNsEvJoLfT{J`O_EjFooBf_C{GdJkLtSwI`SyClI}CrJcDtL{CzMeDlQcXzlBiArIwApNaBfWaLfiCoBpYsDf\qChR_FlVqEpQ_ZbfAyFfXwCtRiAfKeFfs@gBfRcBxMaLdp@sXrzAaE~UqCzRyC`[_q@z|LuDtu@qp@b}WuLraFo@jPo^r}Faq@pfHaBtMsm@~`EoKvo@kv@lkEcuBjzKkNj|@cu@`~EgCnNuiBpcJakAx|GyB`KqdC~fKoIfYidAbwCoD|MeAbHcA|Im@xK}YnhKyV~gEs@~f@aEn|Ee@`XQ^MnD[lBoF`N}@zJCjBfKxCJLdj@bQv`@pIpHnAdl@hLdB`@nDvAtEjDdCvCbOvSzLhZbQd^`JpMPt@QtBFnAz@hDl@^j@?f@e@pAe@x@k@xBPfCEf@Uj@wBbEx@pCH</points>
// </overview_polyline>
// <bounds>
// <southwest>
// <lat>54.6389500</lat>
// <lng>23.8920900</lng>
// </southwest>
// <northeast>
// <lat>54.9376500</lat>
// <lng>25.2800500</lng>
// </northeast>
// </bounds>
// </route>
//</DirectionsResponse>
#endregion
XmlDocument doc = new XmlDocument();
doc.LoadXml(kml);
XmlNode nn = doc.SelectSingleNode("/DirectionsResponse/status");
if (nn != null)
{
ret = (DirectionsStatusCode)Enum.Parse(typeof(DirectionsStatusCode), nn.InnerText, false);
if (ret == DirectionsStatusCode.OK)
{
if (cache && GMaps.Instance.UseDirectionsCache)
{
Cache.Instance.SaveContent(url, CacheType.DirectionsCache, kml);
}
direction = new GDirections();
nn = doc.SelectSingleNode("/DirectionsResponse/route/summary");
if (nn != null)
{
direction.Summary = nn.InnerText;
Debug.WriteLine("summary: " + direction.Summary);
}
nn = doc.SelectSingleNode("/DirectionsResponse/route/leg/duration");
if (nn != null)
{
var t = nn.SelectSingleNode("text");
if (t != null)
{
direction.Duration = t.InnerText;
Debug.WriteLine("duration: " + direction.Duration);
}
t = nn.SelectSingleNode("value");
if (t != null)
{
if (!string.IsNullOrEmpty(t.InnerText))
{
direction.DurationValue = uint.Parse(t.InnerText);
Debug.WriteLine("value: " + direction.DurationValue);
}
}
}
nn = doc.SelectSingleNode("/DirectionsResponse/route/leg/distance");
if (nn != null)
{
var t = nn.SelectSingleNode("text");
if (t != null)
{
direction.Distance = t.InnerText;
Debug.WriteLine("distance: " + direction.Distance);
}
t = nn.SelectSingleNode("value");
if (t != null)
{
if (!string.IsNullOrEmpty(t.InnerText))
{
direction.DistanceValue = uint.Parse(t.InnerText);
Debug.WriteLine("value: " + direction.DistanceValue);
}
}
}
nn = doc.SelectSingleNode("/DirectionsResponse/route/leg/start_location");
if (nn != null)
{
var pt = nn.SelectSingleNode("lat");
if (pt != null)
{
direction.StartLocation.Lat = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}
pt = nn.SelectSingleNode("lng");
if (pt != null)
{
direction.StartLocation.Lng = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}
}
nn = doc.SelectSingleNode("/DirectionsResponse/route/leg/end_location");
if (nn != null)
{
var pt = nn.SelectSingleNode("lat");
if (pt != null)
{
direction.EndLocation.Lat = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}
pt = nn.SelectSingleNode("lng");
if (pt != null)
{
direction.EndLocation.Lng = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}
}
nn = doc.SelectSingleNode("/DirectionsResponse/route/leg/start_address");
if (nn != null)
{
direction.StartAddress = nn.InnerText;
Debug.WriteLine("start_address: " + direction.StartAddress);
}
nn = doc.SelectSingleNode("/DirectionsResponse/route/leg/end_address");
if (nn != null)
{
direction.EndAddress = nn.InnerText;
Debug.WriteLine("end_address: " + direction.EndAddress);
}
nn = doc.SelectSingleNode("/DirectionsResponse/route/copyrights");
if (nn != null)
{
direction.Copyrights = nn.InnerText;
Debug.WriteLine("copyrights: " + direction.Copyrights);
}
nn = doc.SelectSingleNode("/DirectionsResponse/route/overview_polyline/points");
if (nn != null)
{
direction.Route = new List<PointLatLng>();
DecodePointsInto(direction.Route, nn.InnerText);
}
XmlNodeList steps = doc.SelectNodes("/DirectionsResponse/route/leg/step");
if (steps != null)
{
if (steps.Count > 0)
{
direction.Steps = new List<GDirectionStep>();
}
foreach (XmlNode s in steps)
{
GDirectionStep step = new GDirectionStep();
Debug.WriteLine("----------------------");
nn = s.SelectSingleNode("travel_mode");
if (nn != null)
{
step.TravelMode = nn.InnerText;
Debug.WriteLine("travel_mode: " + step.TravelMode);
}
nn = s.SelectSingleNode("start_location");
if (nn != null)
{
var pt = nn.SelectSingleNode("lat");
if (pt != null)
{
step.StartLocation.Lat = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}
pt = nn.SelectSingleNode("lng");
if (pt != null)
{
step.StartLocation.Lng = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}
}
nn = s.SelectSingleNode("end_location");
if (nn != null)
{
var pt = nn.SelectSingleNode("lat");
if (pt != null)
{
step.EndLocation.Lat = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}
pt = nn.SelectSingleNode("lng");
if (pt != null)
{
step.EndLocation.Lng = double.Parse(pt.InnerText, CultureInfo.InvariantCulture);
}
}
nn = s.SelectSingleNode("duration");
if (nn != null)
{
nn = nn.SelectSingleNode("text");
if (nn != null)
{
step.Duration = nn.InnerText;
Debug.WriteLine("duration: " + step.Duration);
}
}
nn = s.SelectSingleNode("distance");
if (nn != null)
{
nn = nn.SelectSingleNode("text");
if (nn != null)
{
step.Distance = nn.InnerText;
Debug.WriteLine("distance: " + step.Distance);
}
}
nn = s.SelectSingleNode("html_instructions");
if (nn != null)
{
step.HtmlInstructions = nn.InnerText;
Debug.WriteLine("html_instructions: " + step.HtmlInstructions);
}
nn = s.SelectSingleNode("polyline");
if (nn != null)
{
nn = nn.SelectSingleNode("points");
if (nn != null)
{
step.Points = new List<PointLatLng>();
DecodePointsInto(step.Points, nn.InnerText);
}
}
direction.Steps.Add(step);
}
}
}
}
}
}
catch (Exception ex)
{
direction = null;
ret = DirectionsStatusCode.ExceptionInCode;
Debug.WriteLine("GetDirectionsUrl: " + ex);
}
return ret;
}
DirectionsStatusCode GetDirectionsUrl(string url, out GDirections direction)
{
DirectionsStatusCode ret = DirectionsStatusCode.UNKNOWN_ERROR;
direction = null;
try
{
string route = GMaps.Instance.UseRouteCache ? Cache.Instance.GetContent(url, CacheType.DirectionsCache) : string.Empty;
if(string.IsNullOrEmpty(route))
{
route = GetContentUsingHttp(url);
if(!string.IsNullOrEmpty(route))
{
if(GMaps.Instance.UseRouteCache)
{
Cache.Instance.SaveContent(url, CacheType.DirectionsCache, route);
}
}
}
#region -- gpx response --
//<?xml version="1.0" encoding="UTF-8"?>
//<gpx creator="" version="1.1" xmlns="http://www.topografix.com/GPX/1/1"
// xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
// xsi:schemaLocation="http://www.topografix.com/GPX/1/1 gpx.xsd ">
// <extensions>
// <distance>293</distance>
// <time>34</time>
// <start>Perckhoevelaan</start>
// <end>Goudenregenlaan</end>
// </extensions>
// <wpt lat="51.17702" lon="4.39630" />
// <wpt lat="51.17656" lon="4.39655" />
// <wpt lat="51.17639" lon="4.39670" />
// <wpt lat="51.17612" lon="4.39696" />
// <wpt lat="51.17640" lon="4.39767" />
// <wpt lat="51.17668" lon="4.39828" />
// <wpt lat="51.17628" lon="4.39874" />
// <wpt lat="51.17618" lon="4.39888" />
// <rte>
// <rtept lat="51.17702" lon="4.39630">
// <desc>Head south on Perckhoevelaan, 0.1 km</desc>
// <extensions>
// <distance>111</distance>
// <time>13</time>
// <offset>0</offset>
// <distance-text>0.1 km</distance-text>
// <direction>S</direction>
// <azimuth>160.6</azimuth>
// </extensions>
// </rtept>
// <rtept lat="51.17612" lon="4.39696">
// <desc>Turn left at Laarstraat, 0.1 km</desc>
// <extensions>
// <distance>112</distance>
// <time>13</time>
// <offset>3</offset>
// <distance-text>0.1 km</distance-text>
// <direction>NE</direction>
// <azimuth>58.1</azimuth>
// <turn>TL</turn>
// <turn-angle>269.0</turn-angle>
// </extensions>
// </rtept>
// <rtept lat="51.17668" lon="4.39828">
// <desc>Turn right at Goudenregenlaan, 70 m</desc>
// <extensions>
// <distance>70</distance>
// <time>8</time>
// <offset>5</offset>
// <distance-text>70 m</distance-text>
// <direction>SE</direction>
// <azimuth>143.4</azimuth>
// <turn>TR</turn>
// <turn-angle>89.8</turn-angle>
// </extensions>
// </rtept>
// </rte>
//</gpx>
#endregion
if(!string.IsNullOrEmpty(route))
{
XmlDocument xmldoc = new XmlDocument();
xmldoc.LoadXml(route);
System.Xml.XmlNamespaceManager xmlnsManager = new System.Xml.XmlNamespaceManager(xmldoc.NameTable);
xmlnsManager.AddNamespace("sm", "http://www.topografix.com/GPX/1/1");
XmlNodeList wpts = xmldoc.SelectNodes("/sm:gpx/sm:wpt", xmlnsManager);
if(wpts != null && wpts.Count > 0)
{
ret = DirectionsStatusCode.OK;
direction = new GDirections();
direction.Route = new List<PointLatLng>();
foreach(XmlNode w in wpts)
{
double lat = double.Parse(w.Attributes["lat"].InnerText, CultureInfo.InvariantCulture);
double lng = double.Parse(w.Attributes["lon"].InnerText, CultureInfo.InvariantCulture);
direction.Route.Add(new PointLatLng(lat, lng));
}
if(direction.Route.Count > 0)
{
direction.StartLocation = direction.Route[0];
direction.EndLocation = direction.Route[direction.Route.Count - 1];
}
XmlNode n = xmldoc.SelectSingleNode("/sm:gpx/sm:metadata/sm:copyright/sm:license", xmlnsManager);
if(n != null)
{
direction.Copyrights = n.InnerText;
}
n = xmldoc.SelectSingleNode("/sm:gpx/sm:extensions/sm:distance", xmlnsManager);
if(n != null)
{
direction.Distance = n.InnerText + "m";
}
n = xmldoc.SelectSingleNode("/sm:gpx/sm:extensions/sm:time", xmlnsManager);
if(n != null)
{
direction.Duration = n.InnerText + "s";
}
n = xmldoc.SelectSingleNode("/sm:gpx/sm:extensions/sm:start", xmlnsManager);
if(n != null)
{
direction.StartAddress = n.InnerText;
}
n = xmldoc.SelectSingleNode("/sm:gpx/sm:extensions/sm:end", xmlnsManager);
if(n != null)
{
direction.EndAddress = n.InnerText;
}
wpts = xmldoc.SelectNodes("/sm:gpx/sm:rte/sm:rtept", xmlnsManager);
if(wpts != null && wpts.Count > 0)
{
direction.Steps = new List<GDirectionStep>();
foreach(XmlNode w in wpts)
{
GDirectionStep step = new GDirectionStep();
double lat = double.Parse(w.Attributes["lat"].InnerText, CultureInfo.InvariantCulture);
double lng = double.Parse(w.Attributes["lon"].InnerText, CultureInfo.InvariantCulture);
step.StartLocation = new PointLatLng(lat, lng);
XmlNode nn = w.SelectSingleNode("sm:desc", xmlnsManager);
if(nn != null)
{
step.HtmlInstructions = nn.InnerText;
}
nn = w.SelectSingleNode("sm:extensions/sm:distance-text", xmlnsManager);
if(nn != null)
{
step.Distance = nn.InnerText;
}
nn = w.SelectSingleNode("sm:extensions/sm:time", xmlnsManager);
if(nn != null)
{
step.Duration = nn.InnerText + "s";
}
direction.Steps.Add(step);
}
}
}
}
}
catch(Exception ex)
{
ret = DirectionsStatusCode.ExceptionInCode;
direction = null;
Debug.WriteLine("GetDirectionsUrl: " + ex);
}
return ret;
}
