what is the use of grid in catia v5


i prefer to turn it off.. may be in some model it would help you... but most of the time it make more difficulties...
let me explain why it is used...
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Step 1:
As you see with grid enabled (snap to point) i can draw only on grid points...
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Step 2:
grid enabled (not snap to point option is on) it act as reference lines,which helps you to create rectangle,triangle and line etc.
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Step 3:
without grid,their is nothing to snap on...