What are the rules of "Having + Verb in third form?"

I know "having + verb in the third form" indicates any task that has been completed and the event or action after that task. But can I use it to indicate something to talk about a present or future incident?
For example, are these sentences grammatically correct?

1. Having seen you, I am not happy. (Present)
2. Having lived in London, I know its climate very well. (Present)
3. Having completed the novel, I will come to see you. (Future)
   Another sentence:
   Which one is correct?
4. Eating my dinner, I will come to meet you.
5. Having had my dinner, I will come to meet you.