Examples of com.vividsolutions.jts.math.DD.signum()

com.vividsolutions.jts.math.DD.signum()
Returns an integer indicating the sign of this value.
- if this value is > 0, returns 1
- if this value is < 0, returns -1
- if this value is = 0, returns 0
- if this value is NaN, returns 0
@return an integer indicating the sign of this value

   * @return  0 if the determinant is 0.
   */
  public static int signOfDet2x2(DD x1, DD y1, DD x2, DD y2)
  {
    DD det = x1.multiply(y2).selfSubtract(y1.multiply(x2));
    return det.signum();
  }


  /**
   * A value which is safely greater than the
   * relative round-off error in double-precision numbers

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