Help with top-down raglan cardigan pattern

I just started a top-down raglan cardigan last night, and the pattern does not include any schematics. I have placed markers for LF and RF and four other markers for the sleeves and the back. I began increasing as instructed, before and after each marker on each RS row and in the first and last stitch of every RS row for the specified amount. The next instructions read:

Continue St st and increasing before and after markers until raglan portion of the sleeve measures X inches. The raglan measurement is taken from the neck, down the diagonal line the increases made, to the underarm.

My response is, WHAT??? WHERE exactly am I supposed to measure? The best I can illustrate it is like this – and this is an approximation of the first and current rows. It’s not to scale – I’m doing this with children screaming loudly for my attention.

               XAXBXXXCXXXXXXXXXDXXXEXFX

XXXXAXXXXXXBXXXXXXXXXXXCXXXXXXXXDXXXXXXEXXXXXXFXXXX

Now – is the raglan measurement from B to B and E to E? Or somewhere else?

Thanks!!

Yes I think it is along the B. So when you look a an already knit ragland, you’ll see a line of stiches going down, like where the B is in your llustration and that is the line they want you to measure. From your neck down to your armit along yer boob. That is what makes the ragland a ragland. Does that make sense? Maybe I’ll get a picture of a ragland and show ya.

OK so here’s a photo of a ragland pullover (I don’t have a cardi already made. I been meaning to work on my own top down cardi for a while now) so I put these needles along the ragland edges to illustrate. so pretend there is an edge down the front. the ragland on the right is A the one in the back right is B the back left is C and the front left is D. So you are increasing stiches between the A abd B to make the sleeve. so you want to measure down the A side (OK I lied before. It does make more sense when you look at it) cuz the A side is the front from the neck, down yer boob to yer arm pit. Between B and C is the sleeve so you would measure that for how thick the sleeve is and so on. DOes that make sense? :??

OK so here’s a photo of a ragland pullover (I don’t have a cardi already made. I been meaning to work on my own top down cardi for a while now) so I put these needles along the ragland edges to illustrate. so pretend there is an edge down the front. the ragland on the right is A the one in the back right is B the back left is C and the front left is D. So you are increasing stiches between the A abd B to make the sleeve. so you want to measure down the A side (OK I lied before. It does make more sense when you look at it) cuz the A side is the front from the neck, down yer boob to yer arm pit. Between B and C is the sleeve so you would measure that for how thick the sleeve is and so on. DOes that make sense? :??

Thank you so much for the descriptive response!