/// <summary>
/// Returns true if the element intersect the rectangle from the parent class.
/// </summary>
/// <param name="rect">The rectangle to test must be in the virtual modeling coordinant plane.</param>
/// <returns>True if the element intersect the rectangle from the parent class.</returns>
public override bool ElementInRectangle(Rectangle rect)
{
Geometry rectanglePoly;
if ((rect.Height == 0) && (rect.Width == 0))
{
rectanglePoly = new NetTopologySuite.Geometries.Point(rect.X, rect.Y);
}
else if (rect.Width == 0)
{
Coordinate[] rectanglePoints = new Coordinate[2];
rectanglePoints[0] = new Coordinate(rect.X, rect.Y);
rectanglePoints[1] = new Coordinate(rect.X, rect.Y + rect.Height);
rectanglePoly = new LineString(rectanglePoints);
}
else if (rect.Height == 0)
{
Coordinate[] rectanglePoints = new Coordinate[2];
rectanglePoints[0] = new Coordinate(rect.X, rect.Y);
rectanglePoints[1] = new Coordinate(rect.X + rect.Width, rect.Y);
rectanglePoly = new LineString(rectanglePoints);
}
else
{
Coordinate[] rectanglePoints = new Coordinate[5];
rectanglePoints[0] = new Coordinate(rect.X, rect.Y);
rectanglePoints[1] = new Coordinate(rect.X, rect.Y + rect.Height);
rectanglePoints[2] = new Coordinate(rect.X + rect.Width, rect.Y + rect.Height);
rectanglePoints[3] = new Coordinate(rect.X + rect.Width, rect.Y);
rectanglePoints[4] = new Coordinate(rect.X, rect.Y);
rectanglePoly = new Polygon(new LinearRing(rectanglePoints));
}
if (Shape == ModelShape.Arrow)
{
Coordinate[] arrowPoints = new Coordinate[_arrowPath.PointCount];
for (int i = 0; i < _arrowPath.PointCount; i++)
{
arrowPoints[i] = new Coordinate(_arrowPath.PathPoints[i].X + Location.X, _arrowPath.PathPoints[i].Y + Location.Y);
}
LineString arrowLine = new LineString(arrowPoints);
return(arrowLine.Intersects(rectanglePoly));
}
return(false);
}
/// <summary>
/// Returns true if the element intersects the rectangle from the parent class.
/// </summary>
/// <param name="rect">The rectangle to test must be in the virtual modeling coordinant plane</param>
/// <returns>True, if the element intersects the rectangle from the parent class.</returns>
public virtual bool ElementInRectangle(Rectangle rect)
{
IGeometry rectanglePoly;
if (rect.Height == 0 && rect.Width == 0)
{
rectanglePoly = new NetTopologySuite.Geometries.Point(rect.X, rect.Y);
}
else if (rect.Width == 0)
{
Coordinate[] rectanglePoints = new Coordinate[2];
rectanglePoints[0] = new Coordinate(rect.X, rect.Y);
rectanglePoints[1] = new Coordinate(rect.X, rect.Y + rect.Height);
rectanglePoly = new LineString(rectanglePoints);
}
else if (rect.Height == 0)
{
Coordinate[] rectanglePoints = new Coordinate[2];
rectanglePoints[0] = new Coordinate(rect.X, rect.Y);
rectanglePoints[1] = new Coordinate(rect.X + rect.Width, rect.Y);
rectanglePoly = new LineString(rectanglePoints);
}
else
{
Coordinate[] rectanglePoints = new Coordinate[5];
rectanglePoints[0] = new Coordinate(rect.X, rect.Y);
rectanglePoints[1] = new Coordinate(rect.X, rect.Y + rect.Height);
rectanglePoints[2] = new Coordinate(rect.X + rect.Width, rect.Y + rect.Height);
rectanglePoints[3] = new Coordinate(rect.X + rect.Width, rect.Y);
rectanglePoints[4] = new Coordinate(rect.X, rect.Y);
rectanglePoly = new Polygon(new LinearRing(rectanglePoints));
}
switch (Shape)
{
case ModelShape.Rectangle:
return(rect.IntersectsWith(Rectangle));
case ModelShape.Ellipse:
int b = Height / 2;
int a = Width / 2;
Coordinate[] ellipsePoints = new Coordinate[(4 * a) + 1];
for (int x = -a; x <= a; x++)
{
if (x == 0)
{
ellipsePoints[x + a] = new Coordinate(Location.X + x + a, Location.Y);
ellipsePoints[(3 * a) - x] = new Coordinate(Location.X + x + a, Location.Y + Height);
}
else
{
ellipsePoints[x + a] = new Coordinate(Location.X + x + a, Location.Y + b - Math.Sqrt(Math.Abs(((b * b * x * x) / (a * a)) - (b * b))));
ellipsePoints[(3 * a) - x] = new Coordinate(Location.X + x + a, Location.Y + b + Math.Sqrt(Math.Abs(((b * b * x * x) / (a * a)) - (b * b))));
}
}
Polygon ellipsePoly = new Polygon(new LinearRing(ellipsePoints));
return(ellipsePoly.Intersects(rectanglePoly));
case ModelShape.Triangle:
Coordinate[] trianglePoints = new Coordinate[4];
trianglePoints[0] = new Coordinate(Location.X, Location.Y);
trianglePoints[1] = new Coordinate(Location.X, Location.Y + Height);
trianglePoints[2] = new Coordinate(Location.X + Width - 5, Location.Y + ((Height - 5) / 2));
trianglePoints[3] = new Coordinate(Location.X, Location.Y);
Polygon trianglePoly = new Polygon(new LinearRing(trianglePoints));
return(trianglePoly.Intersects(rectanglePoly));
default:
return(false);
}
}
