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Cannot convert from System.Collections.Generic.List<GMap.NET.PointLagLng> to System.Collections.Generic.List<System.Windows.Point>

I'm using GMaps.NET and GMaps.WindowsPresentation in a WPF application. One of the classes that comes with GMaps presentation is GMapPolygon and a function called CreatePath. I'm trying to test adding a line between two or multiple points using this function but I'm getting the error when parsing a list of points. Must it be a certain type of list or am I missing something.
There are no examples that I can find of plotting a line between two points in using Windows Presentation but there are for Windows Forms
This is what I'm trying to do now:
List<PointLatLng> points = new List<PointLatLng>();
points.Add(new PointLatLng(48.866383, 2.323575));
points.Add(new PointLatLng(48.863868, 2.321554));
points.Add(new PointLatLng(48.861017, 2.330030));
points.Add(new PointLatLng(48.863727, 2.331918));
GMapPolygon SectorPolygon = new GMapPolygon(points);
SectorPolygon.CreatePath( points,true);
This is the function I'm parsing to:
public virtual Path CreatePath(List<Point> localPath, bool addBlurEffect)
{
// Create a StreamGeometry to use to specify myPath.
StreamGeometry geometry = new StreamGeometry();
using(StreamGeometryContext ctx = geometry.Open())
{
ctx.BeginFigure(localPath[0], true, true);
// Draw a line to the next specified point.
ctx.PolyLineTo(localPath, true, true);
}
// Freeze the geometry (make it unmodifiable)
// for additional performance benefits.
geometry.Freeze();
// Create a path to draw a geometry with.
Path myPath = new Path();
{
// Specify the shape of the Path using the StreamGeometry.
myPath.Data = geometry;
if(addBlurEffect)
{
BlurEffect ef = new BlurEffect();
{
ef.KernelType = KernelType.Gaussian;
ef.Radius = 3.0;
ef.RenderingBias = RenderingBias.Performance;
}
myPath.Effect = ef;
}
myPath.Stroke = Brushes.MidnightBlue;
myPath.StrokeThickness = 5;
myPath.StrokeLineJoin = PenLineJoin.Round;
myPath.StrokeStartLineCap = PenLineCap.Triangle;
myPath.StrokeEndLineCap = PenLineCap.Square;
myPath.Fill = Brushes.AliceBlue;
myPath.Opacity = 0.6;
myPath.IsHitTestVisible = false;
}
return myPath;
}

C# Draw a horizontal line on each stacked column chart

Currently I need to develop a tool with chart as the major component. Chart control is also new for me. I have do a lot of reading, researching to learn and understand the whole picture of the chart control.
After all, I had stuck and question on how to draw a horizontal line (blue & red horizontal line) on stacked column chart as image shown below:
Here what I have done so far:
This is my code so far:
// X-Axis labels settings
chart.ChartAreas[0].AxisX.LabelStyle.Angle = -45;
chart.ChartAreas[0].AxisX.Interval = 1;
// Y-Axis labels settings
//chart.ChartAreas[0].AxisY.Minimum = 100;
chart.ChartAreas[0].AxisY.Minimum = 95;
// Plotting chart
using (YieldEntities context = new YieldEntities())
{
// Extract yield loss list
var yeilds = (
from yeild in context.YeildDatas
group yeild by new { yeild.Loss } into newyeild
select new
{
Loss = newyeild.Key.Loss,
Percentage = newyeild.Sum(p => p.Percentage)
}).OrderByDescending(p => p.Percentage);
//context.YeildDatas.Select(p => new { p.Loss, Percentage = p }).Distinct();
// Create new series
foreach (var yield in yeilds)
{
chart.Series.Add(yield.Loss);
chart.Series[yield.Loss].ChartType = SeriesChartType.StackedColumn100;
}
// Label settings for first series
chart.Series[0].SmartLabelStyle.Enabled = false;
chart.Series[0].LabelAngle = -90;
chart.Series[0].Font = new Font(Font.FontFamily, 15, FontStyle.Bold);
chart.Series[0].IsValueShownAsLabel = true;
var query = context.YeildDatas.ToList();
foreach (var item in query)
{
DataPoint dp = new DataPoint();
dp.SetValueXY(item.DateString, item.Percentage);
chart.Series[item.Loss].Points.Add(dp);
}
// Set empty datapoint for each series
foreach (var yield in yeilds)
{
DataPoint nulldp = new DataPoint();
nulldp.SetValueXY("", 0);
chart.Series[yield.Loss].Points.Insert(1, nulldp);
chart.Series[yield.Loss].Points.Insert(6, nulldp);
chart.Series[yield.Loss].Points.Insert(11, nulldp);
}
chart.Legends["Legend"].IsEquallySpacedItems = true;
chart.Legends["Legend"].IsTextAutoFit = true;
}
I hope to get any expert to guide me to solve this problem.

This is only sample, you can start from there:
// Data point to pixel
var pixelX = this.chart1.ChartAreas[0].AxisX.ValueToPixelPosition(dataPointX);
var pixelY = this.chart1.ChartAreas[0].AxisY.ValueToPixelPosition(dataPointY);
// Pixel to data point
var dataPointX = this.chart1.ChartAreas[0].AxisX.PixelPositionToValue(pixelX);
var dataPointY = this.chart1.ChartAreas[0].AxisY.PixelPositionToValue(pixelY);
// Use event Paint to draw your line
private void chart1_Paint(object sender, PaintEventArgs e)
{
// Convert dataPoint to pixel
var dataPointX = this.chart1.Series[0].Points[0].XValue;
var dataPointY = this.chart1.Series[0].Points[0].YValues[0];
var pixelX = this.chart1.ChartAreas[0].AxisX.ValueToPixelPosition(dataPointX);
var pixelY = this.chart1.ChartAreas[0].AxisY.ValueToPixelPosition(dataPointY);
// Only sample, pen should be initialized outside Paint method
Pen pen = new Pen(Brushes.Red);
// Example of drawing line with width=100 pixel
e.Graphics.DrawLine(pen, pixelX, pixelY, pixelX + 100, pixelY);
}

Add map marker at gmap center?

I'm fiddling around with GMap.NET. I have a gmap.net map control on my form. There is a red x (or plus sign, if you will) in the middle of the map. I added a method that will put a marker wherever I click on the map. However, the customer would rather have a "pushpin" button on the form that the user will click, and the marker will be added where the red X is located (which is always the center of the map control, it seems). The map is drag-able and zoom-able, so the marker will be added wherever the red x is at that time.
Right now, when my program adds a marker, it translates the lat and lng from the FromLocalToLatLng gmap method:
private void gmap_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left) return;
var lat = gmap.FromLocalToLatLng(e.X, e.Y).Lat;
var lng = gmap.FromLocalToLatLng(e.X, e.Y).Lng;
var markerOverlay = new GMapOverlay("markers");
var marker = new GMarkerGoogle(new
PointLatLng(lat, lng),
GMarkerGoogleType.green_pushpin)
{
ToolTipText = "Kevin Jennings",
ToolTipMode = MarkerTooltipMode.OnMouseOver
};
gmap.Overlays.Add(markerOverlay);
markerOverlay.Markers.Add(marker);
}
In this case, though, I'm wondering if there's a way to add the marker at the map center?

I figured it out. You can get the center of the map by using the following code:
var center = gmap.Position;
Once I had the center, all I needed to do was add a marker at that position, like this:
var marker2 = new GMarkerGoogle(new
PointLatLng(center.Lat, center.Lng),
GMarkerGoogleType.green_pushpin)
{
ToolTipText = "Kevin Jennings",
ToolTipMode = MarkerTooltipMode.OnMouseOver
};

you need to use this
map.Zoom = 10;
map.Zoom = 9;
and your markers will position on the right direction..
complete code
var lat = mapa.FromLocalToLatLng(e.X, e.Y).Lat;
var lng = mapa.FromLocalToLatLng(e.X, e.Y).Lng;
MessageBox.Show(lat + " long :" + lng);
var markerOverlay = new GMapOverlay("markers");
var marker = new GMarkerGoogle(new
PointLatLng(lat, lng),
GMarkerGoogleType.green_pushpin)
{
ToolTipText = "Ubicacion depto",
ToolTipMode = MarkerTooltipMode.OnMouseOver
};
markerOverlay.Markers.Add(marker);
map.Overlays.Add(markerOverlay);
map.Zoom = 10;
map.Zoom = 9;
}

Display place name when tap on place marker in wp8

I am trying to display places within 1 km from my current location on window phone 8 map control with google places API. I am using JSON parsing to fetch latitude, longitude and Name. Now i want name to be display like a tooltip when user tap on any place circle.
//Use google API to show POI
HttpClient client = new HttpClient();
string baseUrl = "https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=" + position.Coordinate.Latitude + "," + position.Coordinate.Longitude + "&radius=1000&keyword=hospital&key=AIzaSyBCccOYAea2ITvgqNpIHcutuExQwzQctCk";
string googleResult = await client.GetStringAsync(baseUrl);
//Parse JSON data
JObject obj = JObject.Parse(googleResult);
JArray jarr = (JArray)obj["results"];
foreach(var item in jarr)
{
string name = (string)item.SelectToken("name");
double lt = (double)item.SelectToken("geometry.location.lat");
double lg = (double)item.SelectToken("geometry.location.lng");
//Create a small circle to mark the current location.
Ellipse myCircle2 = new Ellipse();
myCircle2.Fill = new SolidColorBrush(Colors.Red);
myCircle2.Height = 10;
myCircle2.Width = 10;
myCircle2.Opacity = 50;
// Create a MapOverlay to contain the circle.
MapOverlay myLocationOverlay2 = new MapOverlay();
myLocationOverlay2.Content = myCircle2;
myLocationOverlay2.PositionOrigin = new Point(0.5, 0.5);
GeoCoordinate myGeoCoordinate2 = new GeoCoordinate(lt, lg);
myLocationOverlay2.GeoCoordinate = myGeoCoordinate2;
// Create a MapLayer to contain the MapOverlay.
MapLayer myLocationLayer2 = new MapLayer();
myLocationLayer2.Add(myLocationOverlay2);
// Add the MapLayer to the Map.
Bmap.Layers.Add(myLocationLayer2);
}

MapPolyline not being drawn

I am trying to use a MapPolyLine in my Map to show a real-time route, hopefully it will move/scale this time. The thing is the line is not being shown on the map, and I cannot find any programming mistake:
C#
MapLayer pathLayer;
//Constructor
pathLayer = new MapLayer();
MapPolyline line = new MapPolyline();
line.StrokeColor = Colors.Red;
line.StrokeThickness = 10;
//line.Path.Add(several points); Tested, no effect
MapOverlay overlay = new MapOverlay();
overlay.Content = line;
//overlay.GeoCoordinate = new GeoCoordinate(0,0); Tested, no effect
//overlay.PositionOrigin = new Point(0.0, 1.0); Tested, no effect
pathLayer.Add(overlay);
MyMap.Layers.Add(pathLayer);
void geolocator_PositionChanged(Geolocator sender, PositionChangedEventArgs args)
{
MapPolyline line = pathLayer.First(TrackPath).Content as MapPolyline;
line.Path.Add(args.Position.Coordinate); // Checked values, line.Path adds them correctly
}
EDIT: New info. The emulator shows an error when trying to add it using XAML, and the emulator shows the name of the class on the top of the map as a graphic glitch:

MapPolylines and MapPolygons should be added to the MapElements collection... not a MapLayer or a MapOverlay.
You should be able to make this example work for you.
MapPolyline line = new MapPolyline();
line.StrokeColor = Colors.Red;
line.StrokeThickness = 10;
line.Path.Add(new GeoCoordinate(47.6602, -122.098358));
line.Path.Add(new GeoCoordinate(47.561482, -122.071544));
MyMap.MapElements.Add(line);
In your GeoCoord watcher you'll have to get the line from the map's MapElements collection, and add the new position to the line's path instead of predefining like I did. This should be doable.

In Windows Phone 8.1 try add points in this way. "punkty" is my collection.
List<BasicGeoposition> PosList = new List<BasicGeoposition>();
foreach (var item in punkty)
{
PosList.Add(new BasicGeoposition()
{
Latitude = item.Position.Latitude,
Longitude = item.Position.Longitude
});
}
//Example of one point
//PosList.Add(new BasicGeoposition()
//{
// Latitude = 52.46479093,
// Longitude = 16.91743341
//});
MapPolyline line = new MapPolyline();
line.StrokeColor = Colors.Red;
line.StrokeThickness = 5;
line.Path = new Geopath(PosList);
myMap.MapElements.Add(line);