No, that's exactly what a pic is not able to do. However, if there are nodes inside a pic, these can be referenced by <pic name>-<node name>. Check the last two pages of the section on pics in the PGFmanual. Related: Q176900, Q185285, Q194362, Q241719; especially the latter.
– QrrbrbirlbelJun 12 '15 at 20:38
picis not able to do. However, if there are nodes inside a pic, these can be referenced by<pic name>-<node name>. Check the last two pages of the section on pics in the PGFmanual. Related: Q176900, Q185285, Q194362, Q241719; especially the latter. – Qrrbrbirlbel Jun 12 '15 at 20:38picis shown in the answer to one of your questions, two days earlier. – Heiko Oberdiek Jun 12 '15 at 21:35