thought i'd share some of this.
when takeing your colors of your hearldy(as you were wearing it, not how it is seen to others) and placing them on a flag (horizontally) turn it 90 degrees clockwise and when it is pointed vertically the colors become top=left/bottom = right
example:
my heraldry has black on top white on bottom.
my surcoat, the left side is black and the right side is white. also, the the colors do not transpose on the back.
my flag would be black on top and white on bottom