transformPointInverse method
Implementation
Point<num> transformPointInverse(math.Point<num> point,
[Point<num>? returnPoint]) {
final px = point.x.toDouble();
final py = point.y.toDouble();
final td = px * (m01 * m13 - m03 * m11) +
py * (m10 * m03 - m00 * m13) +
m00 * m11 -
m10 * m01;
final tx = px * (m11 * m33 - m13 * m31) +
py * (m30 * m13 - m10 * m33) +
m10 * m31 -
m30 * m11;
final ty = px * (m03 * m31 - m01 * m33) +
py * (m00 * m33 - m30 * m03) +
m30 * m01 -
m00 * m31;
if (returnPoint is Point) {
returnPoint.setTo(tx / td, ty / td);
return returnPoint;
} else {
return Point<num>(tx / td, ty / td);
}
}