how to build a coordinate system

THERE ARE SIX IMAGES ,I WANT TO PERFORM OPERATION AS IN FIGURE c AND d (i.e) to build a coordinate system CAN U TELL HOW TO PROCESS PLEASE http://imgur.com/Y8B0d

[Jan]

How is the coordinate system defined? This cannot be seen in the picture. It is your turn to define the details according to your needs. We cannot guess the details.

[Pat]

I need an image like figure d in the link below,can u tell how to process plz,(i.e)a line drawn at centre of palm

http://imgur.com/Y8B0d

[Walter Roberson]

Do you prefer to be known as "Pat" or as "FIR" ?