1 files changed, 67 insertions, 0 deletions
diff --git a/CSMath/src/bezier/geom/transform/TDHPointRotation.java b/CSMath/src/bezier/geom/transform/TDHPointRotation.java
new file mode 100644
index 0000000..a207612
--- /dev/null
+++ b/CSMath/src/bezier/geom/transform/TDHPointRotation.java
@@ -0,0 +1,67 @@
+package bezier.geom.transform;
+
+import bezier.geom.TDHPoint;
+
+public class TDHPointRotation extends TDHRotation {
+	public final double x0;
+	public final double y0;
+
+	public TDHPointRotation(double theta, double x0, double y0) {
+		super(theta);
+
+		this.x0 = x0;
+		this.y0 = y0;
+	}
+
+	@Override
+	public TDHTransformType type() {
+		return TDHTransformType.ROTATION;
+	}
+
+	@Override
+	public TDHPoint transform(TDHPoint punkt) {
+		double x1 = (punkt.x * Math.cos(theta)) - (punkt.y * Math.sin(theta));
+		double y1 = (punkt.x * Math.sin(theta)) - (punkt.y * Math.cos(theta));
+
+		double x2 = (-x0 * Math.cos(theta)) + (y0 * Math.sin(theta)) + x0;
+		double y2 = (-x0 * Math.sin(theta)) - (y0 * Math.cos(theta)) + y0;
+
+		double x = x1 + (punkt.z * x2);
+		double y = y1 + (punkt.z * y2);
+
+		return new TDHPoint(x, y, punkt.z);
+	}
+
+	@Override
+	public int hashCode() {
+		final int prime = 31;
+		int result = super.hashCode();
+		long temp;
+		temp = Double.doubleToLongBits(x0);
+		result = prime * result + (int) (temp ^ (temp >>> 32));
+		temp = Double.doubleToLongBits(y0);
+		result = prime * result + (int) (temp ^ (temp >>> 32));
+		return result;
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (this == obj)
+			return true;
+		if (!super.equals(obj))
+			return false;
+		if (getClass() != obj.getClass())
+			return false;
+		TDHPointRotation other = (TDHPointRotation) obj;
+		if (Double.doubleToLongBits(x0) != Double.doubleToLongBits(other.x0))
+			return false;
+		if (Double.doubleToLongBits(y0) != Double.doubleToLongBits(other.y0))
+			return false;
+		return true;
+	}
+
+	@Override
+	public String toString() {
+		return "TDHPointRotation [x0=" + x0 + ", y0=" + y0 + "]";
+	}
+}
+\ No newline at end of file