/// <summary>
/// Creates a new map rectangle structure with the specified location and size.
/// </summary>
/// <param name="location">The rectangle location.</param>
/// <param name="size">The rectangle size.</param>
public MapRectangle(MapPoint location, MapSize size)
{
this.Left = location.X;
this.Top = location.Y;
this.Right = location.X + size.Width;
this.Bottom = location.Y - size.Height;
}
/// <summary>
/// Creates a new circular map marker instance.
/// </summary>
/// <param name="location">The marker location as longitude and latitude in degrees.</param>
public MapBulletMarker(MapPoint location)
: base(location)
{
}
/// <summary>
/// Creates a new point map shape.
/// </summary>
/// <param name="metadata">The map metadata.</param>
/// <param name="point">The map point.</param>
public MapShapePoint(MapMetadata metadata, MapPoint point)
: base(MapShapeType.Point, metadata)
{
this.point = point;
}
/// <summary>
/// Creates a new point map shape.
/// </summary>
/// <param name="point">The map point.</param>
public MapShapePoint(MapPoint point)
: base(MapShapeType.Point)
{
this.point = point;
}
/// <summary>
/// Creates a new map marker instance at the specified location.
/// </summary>
/// <param name="location">The marker location as longitude and latitude in degrees.</param>
public MapMarker(MapPoint location)
{
this.location = location;
}
/// <summary>
/// Creates a new map marker instance at the default location.
/// </summary>
public MapMarker()
{
this.location = default(MapPoint);
}
/// <summary>
/// An event handler called when the marker coordinates have changed.
/// </summary>
/// <param name="oldLocation">The old coordinates.</param>
/// <param name="newLocation">The new coordinates.</param>
protected virtual void OnLocationChanged(MapPoint oldLocation, MapPoint newLocation)
{
// If the coordinates have not changed, do nothing.
if (oldLocation == newLocation) return;
// Raise the event.
if (this.LocationChanged != null) this.LocationChanged(this, new MapMarkerChangedEventArgs(this));
}
/// <summary>
/// Converts the specified map point to the float screen coordinates, depending on the current map bounds and scale.
/// </summary>
/// <param name="point">The map point.</param>
/// <returns>The screen coordinates point.</returns>
private PointF ConvertF(MapPoint point)
{
return new PointF(
(float)((point.X - this.mapBounds.Left) * this.mapScale.Width),
(float)((this.mapBounds.Top - point.Y) * this.mapScale.Height)
);
}
/// <summary>
/// Converts the specified map point to the integer screen coordinates, depending on the current map bounds and scale.
/// </summary>
/// <param name="point">The map point.</param>
/// <returns>The screen coordinates point.</returns>
private Point Convert(MapPoint point)
{
return new Point(
(int)Math.Round((point.X - this.mapBounds.Left) * this.mapScale.Width),
(int)Math.Round((this.mapBounds.Top - point.Y) * this.mapScale.Height)
);
}
