@Pure
	public boolean isIdentity() {
        if (this.isIdentity == null) {
            this.isIdentity = MathUtil.isEpsilonZero(this.curvilineTranslation)
                    && MathUtil.isEpsilonZero(this.curvilineTranslation);
        }
        return this.isIdentity.booleanValue();
	}
@ Pure public boolean isIdentity ( ) { if ( this . isIdentity == null ) { this . isIdentity = MathUtil . isEpsilonZero ( this . curvilineTranslation ) && MathUtil . isEpsilonZero ( this . curvilineTranslation ) ; } return this . isIdentity . booleanValue ( ) ; }
Replies if the transformation is the identity transformation.

@return {@code true} if the transformation is identity.