public void Include_with_included_coordinate_must_not_extend_the_region(MapRegion originalRegion, Position position)
{
var region = originalRegion.Clone();
region.Include(position);
region.Should().Be(originalRegion);
}
/// <summary>
/// Discribes a rectangular region. This region usually encloses a set of geometries or represents a area of view.
/// </summary>
/// <param name="center">Center of the bounding box</param>
/// <param name="width">Width of bounding box in degress</param>
/// <param name="height">Height of bounding box in degress</param>
public MapRegion(Position center, double width, double height)
: this(
center.Longitude - width/2,
center.Latitude + height/2,
center.Longitude + width/2,
center.Latitude - height/2)
{
}
public void Include_with_excluded_coordinate_must_extend_the_region(MapRegion originalRegion, Position position)
{
var region = originalRegion.Clone();
region.Include(position);
region.Should().NotBe(originalRegion);
region.Contains(position).Should().BeTrue("the new region should containt the included position now");
originalRegion.Contains(position).Should().BeFalse("the old region should not include the position");
}
/// <summary>
/// Discribes a rectangular region. This region usually encloses a set of geometries or represents a area of view.
/// </summary>
/// <param name="minX">Mininium X value (longitude), left most coordinate.</param>
/// <param name="maxY">Maximium Y value (laitude), northern most coordinate.</param>
/// <param name="maxX">Maximium X value (longitude), right most coordinate.</param>
/// <param name="minY">Minimium Y value (latitude), southern most coordinate.</param>
public MapRegion(double minX, double maxY, double maxX, double minY)
{
var lminX = ClampWidth(Math.Min(minX, maxX));
var lmaxX = ClampWidth(Math.Max(minX, maxX));
var lminY = ClampHeight(Math.Min(minY, maxY));
var lmaxY = ClampHeight(Math.Max(minY, maxY));
_topLeft = new Position(lmaxY, lminX);
_bottomRight = new Position(lminY, lmaxX);
RecalculateDimensionsAndCenter();
}
/// <summary>
/// Discribes a rectangular region. This region usually encloses a set of geometries or represents a area of view.
/// </summary>
/// <param name="topLeft">The top left coordinates of the bounding box.</param>
/// <param name="bottomRight">The bottom right coordinate of the bounding box.</param>
public MapRegion(Position topLeft, Position bottomRight)
: this( topLeft.Longitude, topLeft.Latitude, bottomRight.Longitude, bottomRight.Latitude )
{
}
private void RecalculateDimensionsAndCenter()
{
_width = MaxX + Math.Abs(MinX);
_height = MaxY + Math.Abs(MinY);
_center = new Position(_height/2, _width/2);
}
public bool Contains(Position position) => position.Longitude >= MinX && position.Longitude <= MaxX &&
position.Latitude >= MinY && position.Latitude <= MaxY;
public void Include(Position item)
{
if (Contains(item) == false)
{
var lMinX = Math.Min(MinX, item.Longitude);
var lMaxX = Math.Max(MaxX, item.Longitude);
var lMinY = Math.Min(MinY, item.Latitude);
var lMaxY = Math.Max(MaxY, item.Latitude);
var newRegion = new MapRegion(lMinX, lMaxY, lMaxX, lMinY);
_topLeft = newRegion._topLeft;
_bottomRight = newRegion._bottomRight;
RecalculateDimensionsAndCenter();
}
}
