spherecurveface.java

基于面向对象的数据库编程

package brgeometry;

/**
 * <p>Title: Broundary Rrepresentaion</p>
 * <p>Description: 球曲面也就是球面</p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: USTC</p>
 * @author unascribed
 * @version 1.0
 */

public class SphereCurveFace
    extends CurveFace {

  private RoundCurveEdge roundCurveEdge;

  public SphereCurveFace(RoundCurveEdge roundCurveEdge) {
    this.roundCurveEdge = roundCurveEdge;
    this.setarea(this.getarea());
  }

  public SphereCurveFace() {
    this.setarea(this.getarea());
  }

  //属性操作

  public RoundCurveEdge getRoundCurveEdge() {
    return this.roundCurveEdge;
  }

  public void setRoundCurveEdge(RoundCurveEdge roundCurveEdge) {
    this.roundCurveEdge = roundCurveEdge;
  }

  //实现求面积
  public double getarea() {
    double r = roundCurveEdge.getLength();
    return 4 * 3.1415926 * r * r;
  }

  private void translate() {}

  private void scale() {}

  private void rotate() {}
}