A little bit more about Polygon

Polygon can be used for various purposes, for example:

• We can draw large signal areas by using it in any shape.
• or we can use it to fill the empty pcb area with copper, to make it look more professional.

• For 1^st purpose make a board in eagle, give name to the signal (as -ve in below fig).

• Now draw the polygon (as i mentioned in my previous article) and give it the same name i.e., -ve.

The result is like this:

You can see the –ve signal and polygon merges together.

• For 2^nd option, just change the name of polygon (say Vcc) without changing the signal name.

• After doing this you will find this:

Both the signals are separate.

So, you can easily find the difference between these two.