/// <summary>
/// Transform the given enumeration of geo coordinates into a shape definition.
/// </summary>
/// <param name="GeoCoordinates">An enumeration of geo coordinates.</param>
/// <param name="OnScreenUpperLeft">The upper-left screen offset.</param>
/// <param name="ZoomLevel">The current zoom level of the Aegir map.</param>
/// <param name="CloseShape">Whether to close the shape (polygon), or not (line).</param>
public static GeoCoordinates2ShapeDefinitionPipe ToShapeDefinition(this IEnumerable <IEnumerable <GeoCoordinate> > GeoCoordinates,
ScreenXY OnScreenUpperLeft,
UInt32 ZoomLevel,
Boolean CloseShape)
{
return(new GeoCoordinates2ShapeDefinitionPipe(OnScreenUpperLeft, ZoomLevel, CloseShape, GeoCoordinates));
}
/// <summary>
/// Transform the given enumeration of geo coordinates into a shape definition.
/// </summary>
/// <param name="ArrowSender">The sender of the messages/objects.</param>
/// <param name="OnScreenUpperLeft">The upper-left screen offset.</param>
/// <param name="ZoomLevel">The current zoom level of the Aegir map.</param>
/// <param name="CloseShape">Whether to close the shape (polygon), or not (line).</param>
/// <param name="OnError">A delegate to transform an incoming error into an outgoing error.</param>
public static GeoCoordinates2ShapeDefinitionArrow ToShapeDefinition(this IArrowSender <IEnumerable <GeoCoordinate> > ArrowSender,
ScreenXY OnScreenUpperLeft,
UInt32 ZoomLevel,
Boolean CloseShape,
Func <Exception, Exception> OnError = null)
{
return(new GeoCoordinates2ShapeDefinitionArrow(OnScreenUpperLeft, ZoomLevel, CloseShape, OnError, ArrowSender));
}
/// <summary>
/// Create a new pipe to transform an enumeration of
/// geo coordinates into shape definitions.
/// </summary>
/// <param name="OnScreenUpperLeft">The upper-left screen offset.</param>
/// <param name="ZoomLevel">The current zoom level of the Aegir map.</param>
/// <param name="CloseShape">Whether to close the shape (polygon), or not (line).</param>
/// <param name="IEnumerable">An optional IEnumerable<S> as element source.</param>
/// <param name="IEnumerator">An optional IEnumerator<S> as element source.</param>
public GeoCoordinates2ShapeDefinitionPipe(ScreenXY OnScreenUpperLeft,
UInt32 ZoomLevel,
Boolean CloseShape,
IEnumerable <IEnumerable <GeoCoordinate> > IEnumerable = null,
IEnumerator <IEnumerable <GeoCoordinate> > IEnumerator = null)
: base(IEnumerable,
Item => Item.GeoCoordinates2ShapeDefinition(OnScreenUpperLeft, ZoomLevel, CloseShape))
{
}
/// <summary>
/// Create a new arrow to transform an enumeration of
/// geo coordinates into shape definitions.
/// </summary>
/// <param name="OnScreenUpperLeft">The upper-left screen offset.</param>
/// <param name="ZoomLevel">The current zoom level of the Aegir map.</param>
/// <param name="CloseShape">Whether to close the shape (polygon), or not (line).</param>
/// <param name="OnError">A delegate to transform an incoming error into an outgoing error.</param>
/// <param name="ArrowSender">The sender of the messages/objects.</param>
public GeoCoordinates2ShapeDefinitionArrow(ScreenXY OnScreenUpperLeft,
UInt32 ZoomLevel,
Boolean CloseShape,
Func <Exception, Exception> OnError = null,
IArrowSender <IEnumerable <GeoCoordinate> > ArrowSender = null)
: base(Item => Item.GeoCoordinates2ShapeDefinition(OnScreenUpperLeft, ZoomLevel, CloseShape),
OnError,
ArrowSender)
{
}
private void DrawLine(ScreenXY P1, ScreenXY P2, Brush Stroke, Double StrokeThickness)
{
var Line = new Line()
{
X1 = P1.X + this.MapControl.ScreenOffset.X,
Y1 = P1.Y + this.MapControl.ScreenOffset.Y,
X2 = P2.X + this.MapControl.ScreenOffset.X,
Y2 = P2.Y + this.MapControl.ScreenOffset.Y,
Stroke = Stroke,
StrokeThickness = StrokeThickness
};
this.Children.Add(Line);
}
private void DrawCircle(ScreenXY P, Double Radius, Brush Stroke, Double StrokeThickness)
{
var Ellipse = new Ellipse()
{
Width = 2 * Radius,
Height = 2 * Radius,
Stroke = Stroke,
StrokeThickness = StrokeThickness
};
this.Children.Add(Ellipse);
Canvas.SetLeft(Ellipse, P.X - Radius + this.MapControl.ScreenOffset.X);
Canvas.SetTop(Ellipse, P.Y - Radius + this.MapControl.ScreenOffset.Y);
}
/// <summary>
/// Transform the given enumeration of geo coordinates into a shape definition.
/// </summary>
/// <param name="GeoCoordinates">An enumeration of geo coordinates.</param>
/// <param name="OnScreenUpperLeft">The upper-left screen offset.</param>
/// <param name="ZoomLevel">The current zoom level of the Aegir map.</param>
/// <param name="CloseShape">Whether to close the shape (polygon), or not (line).</param>
public static SDL GeoCoordinates2ShapeDefinition(this IEnumerable <GeoCoordinate> GeoCoordinates,
ScreenXY OnScreenUpperLeft,
UInt32 ZoomLevel,
Boolean CloseShape)
{
if (GeoCoordinates == null)
{
throw new ArgumentNullException("GeoCoordinates");
}
var StringBuilder = new StringBuilder("M ");
Action <ScreenXY> ApplyScreenOffset = ScreenXY => {
StringBuilder.Append(((Int64)ScreenXY.X) - OnScreenUpperLeft.X);
StringBuilder.Append(" ");
StringBuilder.Append(((Int64)ScreenXY.Y) - OnScreenUpperLeft.Y);
StringBuilder.Append(" ");
};
var GeoCoordinates2 = GeoCoordinates.ToArray();
var BoundingBox = GeoCoordinates2.GeoCoordinate2BoundingBox();
GeoCoordinates2.
// Project the geo coordinate onto the current screen (without offset!)
Select(GeoCoordinate => GeoCalculations.GeoCoordinate2ScreenXY(GeoCoordinate, ZoomLevel)).
ForEach(
// For the first...
OnScreenXY => {
ApplyScreenOffset(OnScreenXY);
StringBuilder.Append("L ");
},
// For the rest..
OnScreenXY => ApplyScreenOffset(OnScreenXY));
if (CloseShape)
{
StringBuilder.Append("Z ");
}
return(new SDL(StringBuilder.ToString()));
}
private void DrawLine(ScreenXY P1, ScreenXY P2, Brush Stroke, Double StrokeThickness)
{
var Line = new Line() {
X1 = P1.X + this.MapControl.ScreenOffset.X,
Y1 = P1.Y + this.MapControl.ScreenOffset.Y,
X2 = P2.X + this.MapControl.ScreenOffset.X,
Y2 = P2.Y + this.MapControl.ScreenOffset.Y,
Stroke = Stroke,
StrokeThickness = StrokeThickness
};
this.Children.Add(Line);
}
private void DrawCircle(ScreenXY P, Double Radius, Brush Stroke, Double StrokeThickness)
{
var Ellipse = new Ellipse()
{
Width = 2*Radius,
Height = 2*Radius,
Stroke = Stroke,
StrokeThickness = StrokeThickness
};
this.Children.Add(Ellipse);
Canvas.SetLeft(Ellipse, P.X - Radius + this.MapControl.ScreenOffset.X);
Canvas.SetTop (Ellipse, P.Y - Radius + this.MapControl.ScreenOffset.Y);
}