measurement needed please

took some pics because I hope that will be better than trying to describe what I mean...

across the roof at this point- right from inside the drip rail trim where I put the line (straight across to the same point on the other side) is 49.5 inches


wasn't sure where you meant exactly so I took this picture- the tape is going from the line in the last picture, following the upper edge of the glass






hopefully I got what you were looking for