/// <summary>
/// Returns true if the object is visible on the view.
/// </summary>
/// <returns>true</returns>
/// <c>false</c>
/// <param name="view">View.</param>
/// <param name="zoom"></param>
public override bool IsVisibleIn(View2D view, float zoom)
{
if (this.MinZoom > zoom || this.MaxZoom < zoom)
{ // outside of zoom bounds!
return(false);
}
return(_bounds.Overlaps(view.OuterBox));
}
/// <summary>
/// Returns true if the given rectangle overlaps with this view.
/// </summary>
/// <returns><c>true</c>, if with rectangle overlaps, <c>false</c> otherwise.</returns>
/// <param name="left">Left.</param>
/// <param name="top">Top.</param>
/// <param name="right">Right.</param>
/// <param name="bottom">Bottom.</param>
public bool OverlapsWithBox(double left, double top, double right, double bottom)
{
BoxF2D box = new BoxF2D(left, top, right, bottom);
if (box.Overlaps(_rectangle.BoundingBox))
{
return(_rectangle.Overlaps(box));
}
return(false);
}
public void TestRectangleF2DOverlaps()
{
double delta = 0.00001;
RectangleF2D rectangle = new RectangleF2D(1, 1, System.Math.Sqrt(2) * 2,
System.Math.Sqrt(2) * 2, 45);
double[] converted = rectangle.TransformFrom(100, 100, false, false,
new double[] { 25, 75 });
Assert.AreEqual(2, converted.Length);
Assert.AreEqual(3, converted[0], delta);
Assert.AreEqual(2, converted[1], delta);
double[] convertedBack = rectangle.TransformTo(100, 100, false, false,
converted);
Assert.AreEqual(2, convertedBack.Length);
Assert.AreEqual(25, convertedBack[0], delta);
Assert.AreEqual(75, convertedBack[1], delta);
Assert.IsFalse(rectangle.Overlaps(new BoxF2D(5, 3, 6, 4)));
Assert.IsTrue(rectangle.Overlaps(new BoxF2D(3.5, 1.5, 4.5, 2.5)));
Assert.IsTrue(rectangle.Overlaps(new BoxF2D(2, 0.5, 3, 1.5)));
Assert.IsTrue(rectangle.Overlaps(new BoxF2D(0, -2, 4, 6)));
Assert.IsTrue(rectangle.Overlaps(new BoxF2D(4, -2, 6, 4)));
Assert.IsTrue(rectangle.Overlaps(new BoxF2D(1.5, -2, 2.5, 4)));
}
/// <summary>
/// Returns true if the object is visible on the view.
/// </summary>
/// <returns>true</returns>
/// <c>false</c>
/// <param name="view">View.</param>
/// <param name="zoom"></param>
public override bool IsVisibleIn(View2D view, float zoom)
{ // TODO: refine this visible check.
return(_bounds.Overlaps(view.OuterBox));
}
