do i need graphical lcd ???

hiii every one //// in my project i need to draw an arrow on xy axis according to agiven angle , do ineed glcd for that ? ihave 20*4 lcd ... does any body have asimilar code to help me ...

Take a look at the Nokia 5110. Inexpensive and will let you draw lines pretty easily.

If you have an HD44780 LCD you can draw lines on it but you'd have to break it into individual glyphs... it'd be a huge pain to do.