/**
* Returns <code>true</code> if the given {@link Affine}s are equal. Otherwise returns <code>false
* </code>.
*
* @param a1 The first operand.
* @param a2 The second operand.
* @return <code>true</code> if the given {@link Affine}s are equal, otherwise <code>false</code>.
*/
protected static boolean equals(Affine a1, Affine a2) {
// Affine does not properly implement equals, so we have to implement
// that here
return a1.getMxx() == a2.getMxx()
&& a1.getMxy() == a2.getMxy()
&& a1.getMxz() == a2.getMxz()
&& a1.getMyx() == a2.getMyx()
&& a1.getMyy() == a2.getMyy()
&& a1.getMyz() == a2.getMyz()
&& a1.getMzx() == a2.getMzx()
&& a1.getMzy() == a2.getMzy()
&& a1.getMzz() == a2.getMzz()
&& a1.getTx() == a2.getTx()
&& a1.getTy() == a2.getTy()
&& a1.getTz() == a2.getTz();
}
/**
* Assigns the transformation values of the <i>src</i> {@link Affine} to the <i>dst</i> {@link
* Affine}.
*
* @param dst The destination {@link Affine}.
* @param src The source {@link Affine}.
* @return The destination {@link Affine} for convenience.
*/
protected static Affine setAffine(Affine dst, Affine src) {
dst.setMxx(src.getMxx());
dst.setMxy(src.getMxy());
dst.setMxz(src.getMxz());
dst.setMyx(src.getMyx());
dst.setMyy(src.getMyy());
dst.setMyz(src.getMyz());
dst.setMzx(src.getMzx());
dst.setMzy(src.getMzy());
dst.setMzz(src.getMzz());
dst.setTx(src.getTx());
dst.setTy(src.getTy());
dst.setTz(src.getTz());
return dst;
}