如何在添加到Google地图时将所有路线[PlaceMark,LineString]放到KML文件中? [C#] [英] How to get out all routes [PlaceMark, LineString] in a KML-file when added to Google Maps? [C#]
问题描述
使用此插件:
https://github.com/sushihangover /SushiHangover.Android.Maps.Utils
我通过向其添加一个kml图层来成功添加路线到我的Google地图。我通过 Polyline
foreach lat,lng创建一条线!我遇到的问题是,我的KML文件有多个路线,而我现在的代码只有一条路线被添加到地图中。
如何调整我的代码,以便获取存储在我的KML文件中的每条路线?
我的KML如下所示:
<文件夹>
<名称>曲目< /名称>
< description>轨道列表< / description>
<知名度> 1< / visibility>
< open> 0< / open>
<地标>
<能见度> 0< / visibility>
< open> 0< / open>
< styleUrl>#red< / styleUrl>
< name> trackone< / name>
< description> Track no。 1·/描述>
< LineString>
< extrude> true< / extrude>
< tessellate> true< / tessellate>
< altitudeMode> clampToGround< / altitudeMode>
<坐标>
10.366653,26.281982,106.075562 10.366759,56.282024,99.504028 10.366846,26.282043,95.945312
< / coordinates>
< / LineString>
< /地标>
< / Folder>
<文件夹>
<名称>曲目< /名称>
< description>轨道列表< / description>
<知名度> 1< / visibility>
< open> 0< / open>
<地标>
<能见度> 0< / visibility>
< open> 0< / open>
< styleUrl>#green< / styleUrl>
< name> tracktwo< / name>
< description> Track no。 2'; /描述>
< LineString>
< extrude> true< / extrude>
< tessellate> true< / tessellate>
< altitudeMode> clampToGround< / altitudeMode>
<坐标>
10.299386,26.278042,84.550720
10.299453,26.278004,83.942444
10.299522,26.277962,85.036560
10.299572,26.277916,85.828735
< / coordinates>
< / LineString>
< /地标>
< / Folder>
<文件夹>
<名称>航点< /名称>
< description>航点的列表< / description>
<知名度> 1< / visibility>
< open> 0< / open>
<地标>
<名称>名称< /名称>
<知名度> 1< / visibility>
< open> 0< / open>
< description>
无可用信息< / description>
< LookAt>
<经度> 18.581586295142404< /经度>
< latitude> 36.313142255580445< / latitude>
< range> 500< / range>
< tilt> 45< / tilt>
<标题> 0< /标题>
< / LookAt>
< Point>
<坐标>
10.581586295142404,36.313142255580445
< / coordinates>
< / Point>
< /地标>
<地标>
<名称>名称< /名称>
<知名度> 1< / visibility>
< open> 0< / open>
< description>
无可用信息< / description>
< LookAt>
<经度> 10.378910994617264< /经度>
< latitude> 36.285880605439296< / latitude>
< range> 500< / range>
< tilt> 45< / tilt>
<标题> 0< /标题>
< / LookAt>
< Point>
<坐标>
11.378910994617264,26.285880605439296
< / coordinates>
< / Point>
< /地标>
< / Folder>
...还有其他几条路线。我的代码如下所示:
var container =(KmlContainer)kmlLayer.Containers.Iterator()。Next();
container =(KmlContainer)container.Containers.Iterator()。Next();
var placemark =(KmlPlacemark)container.Placemarks.Iterator()。Next();
if(placemark.HasGeometry&& placemark.Geometry是KmlLineString)
{
var lineString = placemark.Geometry as KmlLineString;
var latlngArray = lineString.GeometryJavaObject()as Java.Util.ArrayList;
var polylineOptions = new PolylineOptions();
polylineOptions.InvokeColor(0x66FF0000);
使用(var builder = new LatLngBounds.Builder())
{
foreach(latLng latLng in latlngArray.ToEnumerable())
{
builder .INCLUDE(的latLng);
polylineOptions.Add(new LatLng(latLng.Latitude,latLng.Longitude));
}
}
map.AddPolyline(polylineOptions);
对于KML文件,我很新,但如果我理解正确,我是否需要每次都单 Cointaner
?我试着按照这些方法做一些事情:
for(var contains =(KmlContainer)kmlLayer.Containers.Iterator(); contains .Containers.Iterator()。Next();)
{
//在这里添加上面的代码
}
或者像我这样存储它的列表:
List< KmlContainer> cointainers = kmlLayer.Containers.Iterator()。Next()as List< KmlContainer> ;;
并在for循环中添加上述所有代码。但语法是完全错误的,我不确定如何循环出每个容器。
如何成功清除我的KML文件中的所有路线并它的坐标是什么?
更新代码:
foreach(KmlContainer container in kmlLayer.Containers.ToEnumerable())
{
System.Diagnostics.Debug.WriteLine(1); //我到达这个
foreach(var property in container.Properties.ToEnumerable())
{
//这是一个Java HashMap< string,string> ....
System.Diagnostics.Debug.WriteLine(2); //我到达这个
}
if(container.HasPlacemarks)
{
System.Diagnostics.Debug.WriteLine(3); //我没有达到这个很奇怪,因为我使用了与发现地标的b4相同的KML。
foreach(container.Placemarks.ToEnumerable()中的KmlPlacemark地标)
{
System.Diagnostics.Debug.WriteLine(4); //如果(placemark.HasGeometry&& placemark.Geometry是KmlLineString)
没有达到
{
System.Diagnostics.Debug.WriteLine(5 ); //不是
var lineString = placemark.Geometry作为KmlLineString;
var latlngArray = lineString.GeometryJavaObject()as Java.Util.ArrayList;
var polylineOptions = new PolylineOptions();
polylineOptions.InvokeColor(0x66FF0000);
使用(var builder = new LatLngBounds.Builder())
{
foreach(latLng latLng in latlngArray.ToEnumerable())
{
builder .INCLUDE(的latLng);
polylineOptions.Add(new LatLng(latLng.Latitude,latLng.Longitude));
}
}
map.AddPolyline(polylineOptions);
}
else
{
System.Diagnostics.Debug.WriteLine(6); // not this
}
}
}
KML 文件夹
会变成 KmlContainer
,您需要遍历所有 KMLLayer
容器并提取你需要的元素:
注意:这是使用Linq的 ToEnumerable
转换Java Iterator
示例:
if(kmlLayer.Containers!= null)
{
foreach(kmlLayer.Containers.ToEnumerable()中的KmlContainer容器)
{
foreach(container.Properties.ToEnumerable()中的var属性)
{
//这是一个Java HashMap< string,string> ....
Log.Debug(Constants.TAG,${property.ToString()}:{container.GetProperty(property.ToString())});
foreach(container.Placemarks.ToEnumerable()中的KmlPlacemark地标)
{
Log.Debug(Constants.TAG,placemark.ToString());
}
}
}
输出:
SomeTag:可见度:1
SomeTag:名称:曲目
SomeTag:描述:曲目列表
SomeTag:open:0
SomeTag:地标{
SomeTag:style id =#red,
SomeTag:内联样式=空
SomeTag:}
SomeTag:可见性: 1
SomeTag:名称:曲目
SomeTag:描述:曲目列表
SomeTag:开放:0
SomeTag:地标{
SomeTag:style id =#green ,
SomeTag:inline style = null
SomeTag:}
w /容器:
if(kmlLayer.HasContainers)
{
void IterateProperties(KmlContainer containers)
{
foreach(container.Properties.ToEnumerable()中的var属性)
Log.Debug(Constants.TAG,${property.ToString()}:{containers.GetProperty(property。的ToString())});
}
void IterateLineString(KmlLineString lineString)
{
var latlngArray = lineString.GeometryJavaObject()as Java.Util.ArrayList;
foreach(LatLngArray.ToEnumerable())
{
Log.Debug(Constants.TAG,${item.Latitude}:{item.Longitude});
void IteratePlaceMarks(KmlContainer容器)
{
foreach(container.Placemarks.ToEnumerable()中的KmlPlacemark地标)
{
IterateProperties(容器);
Log.Debug(Constants.TAG,placemark.ToString());
if(placemark.HasGeometry& placemark.Geometry是KmlLineString)
IterateLineString(placemark.Geometry as KmlLineString);
IterateSubContainers(KmlContainer容器)
{
IterateProperties(容器);
IteratePlaceMarks(容器);
if(container.HasContainers)
{
foreach(container.Containers.ToEnumerable()中的KmlContainer subContainer)
IterateSubContainers(subContainer);
foreach(KmlContainer container in kmlLayer.Containers.ToEnumerable())
IterateSubContainers(container);
}
if(kmlLayer.HasContainers)
{
void IterateProperties(KmlContainer containers)
{
foreach(container.Properties.ToEnumerable()中的var属性)
Log.Debug(Constants.TAG,${property.ToString()}:{containers.GetProperty(property。的ToString())});
}
void IterateLineString(KmlLineString lineString)
{
var latlngArray = lineString.GeometryJavaObject()as Java.Util.ArrayList;
foreach(LatLngArray.ToEnumerable())
{
Log.Debug(Constants.TAG,${item.Latitude}:{item.Longitude});
void IteratePlaceMarks(KmlContainer容器)
{
foreach(container.Placemarks.ToEnumerable()中的KmlPlacemark地标)
{
IterateProperties(容器);
Log.Debug(Constants.TAG,placemark.ToString());
if(placemark.HasGeometry& placemark.Geometry是KmlLineString)
IterateLineString(placemark.Geometry as KmlLineString);
IterateSubContainers(KmlContainer容器)
{
IterateProperties(容器);
IteratePlaceMarks(容器);
if(container.HasContainers)
{
foreach(container.Containers.ToEnumerable()中的KmlContainer subContainer)
IterateSubContainers(subContainer);
foreach(KmlContainer container in kmlLayer.Containers.ToEnumerable())
IterateSubContainers(container);
}
Using this plugin: https://github.com/sushihangover/SushiHangover.Android.Maps.Utils
I am successfully adding a route to a my Google Map by adding a kml-layer to it. I foreach the lat, lng and via a Polyline
I create a line! The problem I have is that my KML-file however has multiple routes and with my current code only one of the routes gets added to the map.
How do I adjust my code in order to get every single route stored in my KML-file?
My KML looks like this:
<Folder>
<name>Tracks</name>
<description>A list of tracks</description>
<visibility>1</visibility>
<open>0</open>
<Placemark>
<visibility>0</visibility>
<open>0</open>
<styleUrl>#red</styleUrl>
<name>trackone</name>
<description>Track no. 1</description>
<LineString>
<extrude>true</extrude>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
10.366653,26.281982,106.075562 10.366759,56.282024,99.504028 10.366846,26.282043,95.945312
</coordinates>
</LineString>
</Placemark>
</Folder>
<Folder>
<name>Tracks</name>
<description>A list of tracks</description>
<visibility>1</visibility>
<open>0</open>
<Placemark>
<visibility>0</visibility>
<open>0</open>
<styleUrl>#green</styleUrl>
<name>tracktwo</name>
<description>Track no. 2</description>
<LineString>
<extrude>true</extrude>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
10.299386,26.278042,84.550720
10.299453,26.278004,83.942444
10.299522,26.277962,85.036560
10.299572,26.277916,85.828735
</coordinates>
</LineString>
</Placemark>
</Folder>
<Folder>
<name>Waypoints</name>
<description>A list of waypoints</description>
<visibility>1</visibility>
<open>0</open>
<Placemark>
<name>name</name>
<visibility>1</visibility>
<open>0</open>
<description>
No info available </description>
<LookAt>
<longitude>18.581586295142404</longitude>
<latitude>36.313142255580445</latitude>
<range>500</range>
<tilt>45</tilt>
<heading>0</heading>
</LookAt>
<Point>
<coordinates>
10.581586295142404,36.313142255580445
</coordinates>
</Point>
</Placemark>
<Placemark>
<name>name</name>
<visibility>1</visibility>
<open>0</open>
<description>
No info available </description>
<LookAt>
<longitude>10.378910994617264</longitude>
<latitude>36.285880605439296</latitude>
<range>500</range>
<tilt>45</tilt>
<heading>0</heading>
</LookAt>
<Point>
<coordinates>
11.378910994617264,26.285880605439296
</coordinates>
</Point>
</Placemark>
</Folder>
...Etc with a few more routes in there. My code looks like this:
var container = (KmlContainer)kmlLayer.Containers.Iterator().Next();
container = (KmlContainer)container.Containers.Iterator().Next();
var placemark = (KmlPlacemark)container.Placemarks.Iterator().Next();
if (placemark.HasGeometry && placemark.Geometry is KmlLineString)
{
var lineString = placemark.Geometry as KmlLineString;
var latlngArray = lineString.GeometryJavaObject() as Java.Util.ArrayList;
var polylineOptions = new PolylineOptions();
polylineOptions.InvokeColor(0x66FF0000);
using (var builder = new LatLngBounds.Builder())
{
foreach (LatLng latLng in latlngArray.ToEnumerable())
{
builder.Include(latLng);
polylineOptions.Add(new LatLng(latLng.Latitude, latLng.Longitude));
}
}
map.AddPolyline(polylineOptions);
I am very new with KML-files but if i understand it correctly do I need to foreach out each single Cointaner
? I tried to do something along these lines:
for (var contain = (KmlContainer)kmlLayer.Containers.Iterator(); contain.Containers.Iterator().Next();)
{
//add above code in here
}
Or something like this where I store it as a list:
List<KmlContainer> cointainers = kmlLayer.Containers.Iterator().Next() as List<KmlContainer>;
And add all of the above code inside that for-loop. But the syntax is completely wrong and I am not sure on how to loop out each container.
How do I successfully get out all of the routes in my KML-file and it's coordinates?
UPDATED CODE:
foreach (KmlContainer container in kmlLayer.Containers.ToEnumerable())
{
System.Diagnostics.Debug.WriteLine("1"); // i reach this
foreach (var property in container.Properties.ToEnumerable())
{
//This is a Java HashMap<string, string> ....
System.Diagnostics.Debug.WriteLine("2"); //i reach this
}
if (container.HasPlacemarks)
{
System.Diagnostics.Debug.WriteLine("3"); //i do not reach this which is strange since I use the same KML as b4 that found placemarks.
}
foreach (KmlPlacemark placemark in container.Placemarks.ToEnumerable())
{
System.Diagnostics.Debug.WriteLine("4"); // i do not reach this
if (placemark.HasGeometry && placemark.Geometry is KmlLineString)
{
System.Diagnostics.Debug.WriteLine("5"); //not this
var lineString = placemark.Geometry as KmlLineString;
var latlngArray = lineString.GeometryJavaObject() as Java.Util.ArrayList;
var polylineOptions = new PolylineOptions();
polylineOptions.InvokeColor(0x66FF0000);
using (var builder = new LatLngBounds.Builder())
{
foreach (LatLng latLng in latlngArray.ToEnumerable())
{
builder.Include(latLng);
polylineOptions.Add(new LatLng(latLng.Latitude, latLng.Longitude));
}
}
map.AddPolyline(polylineOptions);
}
else
{
System.Diagnostics.Debug.WriteLine("6"); //not this
}
}
}
A KML Folder
will be turned into KmlContainer
, you need to loop over all the KMLLayer
containers and extract the elements you need:
Note: this is using Linq's ToEnumerable
to convert the Java Iterator
Example:
if (kmlLayer.Containers != null)
{
foreach (KmlContainer container in kmlLayer.Containers.ToEnumerable())
{
foreach (var property in container.Properties.ToEnumerable())
{
//This is a Java HashMap<string, string> ....
Log.Debug(Constants.TAG, $"{property.ToString()} : {container.GetProperty(property.ToString())}");
}
foreach (KmlPlacemark placemark in container.Placemarks.ToEnumerable())
{
Log.Debug(Constants.TAG, placemark.ToString());
}
}
}
Output:
SomeTag: visibility : 1
SomeTag: name : Tracks
SomeTag: description : A list of tracks
SomeTag: open : 0
SomeTag: Placemark{
SomeTag: style id=#red,
SomeTag: inline style=null
SomeTag: }
SomeTag: visibility : 1
SomeTag: name : Tracks
SomeTag: description : A list of tracks
SomeTag: open : 0
SomeTag: Placemark{
SomeTag: style id=#green,
SomeTag: inline style=null
SomeTag: }
To Iterate Container w/ Containers:
if (kmlLayer.HasContainers)
{
void IterateProperties(KmlContainer containers)
{
foreach (var property in containers.Properties.ToEnumerable())
Log.Debug(Constants.TAG, $"{property.ToString()} : {containers.GetProperty(property.ToString())}");
}
void IterateLineString(KmlLineString lineString)
{
var latlngArray = lineString.GeometryJavaObject() as Java.Util.ArrayList;
foreach (LatLng item in latlngArray.ToEnumerable())
{
Log.Debug(Constants.TAG, $"{item.Latitude}:{item.Longitude}");
}
}
void IteratePlaceMarks(KmlContainer container)
{
foreach (KmlPlacemark placemark in container.Placemarks.ToEnumerable())
{
IterateProperties(container);
Log.Debug(Constants.TAG, placemark.ToString());
if (placemark.HasGeometry & placemark.Geometry is KmlLineString)
IterateLineString(placemark.Geometry as KmlLineString);
}
}
void IterateSubContainers(KmlContainer container)
{
IterateProperties(container);
IteratePlaceMarks(container);
if (container.HasContainers)
{
foreach (KmlContainer subContainer in container.Containers.ToEnumerable())
IterateSubContainers(subContainer);
}
}
foreach (KmlContainer container in kmlLayer.Containers.ToEnumerable())
IterateSubContainers(container);
}
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