public static bool IsPointInRectangle(Point point, Point pointLeftBottom, Point pointRightTop)
{
bool isBetweenTopAndBottom = (point.X >= pointLeftBottom.X) && (point.X <= pointRightTop.X);
bool isBetweenLeftAndRight = (point.Y >= pointLeftBottom.Y) && (point.Y <= pointRightTop.Y);
return isBetweenLeftAndRight && isBetweenTopAndBottom;
}
public static Point TransformCoordinates(Point pointForm, IFiniteElement elementFrom, IFiniteElement elementTo)
{
Point res = new Point();
res.X = elementTo[0].Point.X +
((pointForm.X - elementFrom[0].Point.X) * (elementTo[2].Point.X - elementTo[0].Point.X)) / (elementFrom[2].Point.X - elementFrom[0].Point.X);
res.Y = elementTo[0].Point.Y +
((pointForm.Y - elementFrom[0].Point.Y) * (elementTo[2].Point.Y - elementTo[0].Point.Y)) / (elementFrom[2].Point.Y - elementFrom[0].Point.Y);
return res;
}