The ability to get the rotation of any block

Given x,y,z, it would return an integer (0,90,180 etc) or maybe a direction (North, South etc)... I'm not sure but it could be useful... And also the ability to place a block rotated in a specific way - eg in a mod i'm making the player can place a block and it rotates relative to them (thanks for adding that btw), but there is no way that i can figure out to place the block that way with a procedure.

Thanks