Package org.eclipse.gef.geometry.planar

Interface IRotatable<T extends IGeometry>

Type Parameters:
T - type of the rotation results
All Known Implementing Classes:
Arc, BezierCurve, CubicCurve, CurvedPolygon, Ellipse, Line, Pie, PolyBezier, Polygon, Polyline, QuadraticCurve, Rectangle, Region, Ring, RoundedRectangle
public interface IRotatable<T extends IGeometry>

The IRotatable interface collects the out-of-place rotation short-cut methods.

Rotation cannot be applied directly to all IGeometrys. For example, Rectangle, Ellipse, Region and RoundedRectangle cannot be slanted. Therefore, you have to specify the result type for the rotation methods via a type parameter.

There are two directions of rotation: clock-wise (CW) and counter-clock-wise (CCW). The individual method names reflect the direction of rotation that is used. These are the rotation methods: getRotatedCCW(Angle), getRotatedCCW(Angle, Point), getRotatedCCW(Angle, double, double), getRotatedCW(Angle), getRotatedCW(Angle, Point), getRotatedCW(Angle, double, double).

If you do not specify a Point to rotate around, the implementation can appropriately choose one. In most cases, this will be the center Point of the rotated object.

  • Method Summary

    Modifier and Type
    Method
    Description
    T
    getRotatedCCW(Angle angle)
    Rotates the calling object by specified Angle counter-clock-wise (CCW) around its center Point.
    T
    getRotatedCCW(Angle angle, double cx, double cy)
    Rotates the calling object by the specified Angle counter-clock-wise (CCW) around the specified center Point (cx, cy).
    T
    getRotatedCCW(Angle angle, Point center)
    Rotates the calling object by the specified Angle counter-clock-wise (CCW) around the specified center Point.
    T
    getRotatedCW(Angle angle)
    Rotates the calling object by specified Angle clock-wise (CW) around its center Point.
    T
    getRotatedCW(Angle angle, double cx, double cy)
    Rotates the calling object by the specified Angle clock-wise (CW) around the specified center Point (cx, cy).
    T
    getRotatedCW(Angle angle, Point center)
    Rotates the calling object by the specified Angle clock-wise (CW) around the specified center Point.

  • Method Details

    • getRotatedCCW

      T getRotatedCCW(Angle angle)
      Rotates the calling object by specified Angle counter-clock-wise (CCW) around its center Point. Does not necessarily return an object of the same type.
      Parameters:
      angle - rotation Angle
      Returns:
      an IGeometry representing the result of the rotation

    • getRotatedCCW

      T getRotatedCCW(Angle angle, double cx, double cy)
      Rotates the calling object by the specified Angle counter-clock-wise (CCW) around the specified center Point (cx, cy). Does not necessarily return an object of the same type.
      Parameters:
      angle - rotation Angle
      cx - x-coordinate of the relative Point for the rotation
      cy - y-coordinate of the relative Point for the rotation
      Returns:
      an IGeometry representing the result of the rotation

    • getRotatedCCW

      T getRotatedCCW(Angle angle, Point center)
      Rotates the calling object by the specified Angle counter-clock-wise (CCW) around the specified center Point. Does not necessarily return an object of the same type.
      Parameters:
      angle - rotation Angle
      center - relative Point for the rotation
      Returns:
      an IGeometry representing the result of the rotation

    • getRotatedCW

      T getRotatedCW(Angle angle)
      Rotates the calling object by specified Angle clock-wise (CW) around its center Point. Does not necessarily return an object of the same type.
      Parameters:
      angle - rotation Angle
      Returns:
      an IGeometry representing the result of the rotation

    • getRotatedCW

      T getRotatedCW(Angle angle, double cx, double cy)
      Rotates the calling object by the specified Angle clock-wise (CW) around the specified center Point (cx, cy). Does not necessarily return an object of the same type.
      Parameters:
      angle - rotation Angle
      cx - x-coordinate of the relative Point for the rotation
      cy - y-coordinate of the relative Point for the rotation
      Returns:
      an IGeometry representing the result of the rotation

    • getRotatedCW

      T getRotatedCW(Angle angle, Point center)
      Rotates the calling object by the specified Angle clock-wise (CW) around the specified center Point. Does not necessarily return an object of the same type.
      Parameters:
      angle - rotation Angle
      center - relative Point for the rotation
      Returns:
      an IGeometry representing the result of the rotation