Class LinecastPoint2D


  • public class LinecastPoint2D
    extends AbstractLinecastPoint<Vector2D,​Vector2D.Unit,​Line>
    Class representing intersections resulting from linecast operations in Euclidean 2D space. This class contains the intersection point along with the boundary normal of the target at the point of intersection.
    See Also:
    Linecastable2D
    • Field Detail

      • ABSCISSA_ORDER

        public static final java.util.Comparator<LinecastPoint2D> ABSCISSA_ORDER
        Comparator that sorts intersection instances by increasing abscissa order. If two abscissa values are equal, the comparison uses Vector2D.COORDINATE_ASCENDING_ORDER with the intersection normals.
    • Constructor Detail

      • LinecastPoint2D

        public LinecastPoint2D​(Vector2D point,
                               Vector2D normal,
                               Line line)
        Construct a new instance from its components.
        Parameters:
        point - the linecast intersection point
        normal - the surface of the linecast target at the intersection point
        line - intersecting line
    • Method Detail

      • eq

        public boolean eq​(LinecastPoint2D other,
                          org.apache.commons.numbers.core.Precision.DoubleEquivalence precision)
        Return true if this instance should be considered equivalent to the argument, using the given precision context for comparison. Instances are considered equivalent if they have equivalent points, normals, and lines.
        Parameters:
        other - point to compare with
        precision - precision context to use for the comparison
        Returns:
        true if this instance should be considered equivalent to the argument
      • sortAndFilter

        public static void sortAndFilter​(java.util.List<LinecastPoint2D> pts)
        Sort the given list of linecast points by increasing abscissa value and filter to remove duplicate entries (as determined by the eq(LinecastPoint2D, Precision.DoubleEquivalence) method). The argument is modified.
        Parameters:
        pts - list of points to sort and filter
      • containsEq

        private static boolean containsEq​(LinecastPoint2D pt,
                                          java.util.List<? extends LinecastPoint2D> list)
        Return true if the given linecast point is equivalent to any of those in the given list.
        Parameters:
        pt - point to test
        list - list to test against
        Returns:
        true if the given linecast point is equivalent to any of those in the given list