Question

Can anyone explain the conversion factor for the rotation number in Internet explorer, or how to use it properly? For example:

       filter:  progid:DXImageTransform.Microsoft.BasicImage(rotation= 1.8);   
   -ms-filter: "progid:DXImageTransform.Microsoft.BasicImage(rotation= 1.8)";
copy-ms-transform:rotate(11.5deg);

I understand rotation in chrome because it’s measured in degrees, but I’m not sure what this is using as its unit.

Answer 1

From Microsoft’s documentation:

iRotation specifies or receives one of the following values:
  0   Default. Content is not rotated.
  1   Content is rotated 90 degrees.
  2   Content is rotated 180 degrees.
  3   Content is rotated 270 degrees.