+1 on the above drawings, and as to sound, in general -
Roundwounds have a tone similar to a piano when new, a nice bright punchy sound suitable for modern rock and slap bass.
Flatwounds are not as bright, more botome end with some thumpiness, they sound more like a upright bass, generally good for classic rock and old school R+B and Blues, especially after they've been played for a while and have dulled down a bit.
Ground wounds have a tone somewhere in between, depending on how broken in they are, they could be used in any number of styles.
To be honest though, any string type could be used in just about any genre, it's just that some types may be more suitable than others. A lot depends son your bass, your amp, and how you play and how you set your EQ.
You can call me ...Cliff.
"If I could walk that way, I wouldn't need the talcum powder."