Rounds the origin of the given rectangle to its nearest
integer value and and recompute the size so that the
rectangle is large enough to contain all the conrners
of the original rectangle.
This function is the equivalent of calling floor on
the coordinates of the origin, and recomputing the size
calling ceil on the bottom-right coordinates.
If you want to be sure that the rounded rectangle
completely covers the area that was covered by the
original rectangle — i.e. you want to cover the area
including all its corners — this function will make sure
that the size is recomputed taking into account the ceiling
of the coordinates of the bottom-right corner.
If the difference between the original coordinates and the
coordinates of the rounded rectangle is greater than the
difference between the original size and and the rounded
size, then the move of the origin would not be compensated
by a move in the anti-origin, leaving the corners of the
original rectangle outside the rounded one.
Rounds the origin of the given rectangle to its nearest integer value and and recompute the size so that the rectangle is large enough to contain all the conrners of the original rectangle.
This function is the equivalent of calling floor on the coordinates of the origin, and recomputing the size calling ceil on the bottom-right coordinates.
If you want to be sure that the rounded rectangle completely covers the area that was covered by the original rectangle — i.e. you want to cover the area including all its corners — this function will make sure that the size is recomputed taking into account the ceiling of the coordinates of the bottom-right corner. If the difference between the original coordinates and the coordinates of the rounded rectangle is greater than the difference between the original size and and the rounded size, then the move of the origin would not be compensated by a move in the anti-origin, leaving the corners of the original rectangle outside the rounded one.