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<h1>TFormNormal x#, y#, z#, source_entity, dest_entity</h1>
<h1>Parameters</h1>
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x#, y#, z# = components of a vector in 3d space
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source_entity = handle of source entity, or 0 for 3d world
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dest_entity = handle of destination entity, or 0 for 3d world
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<h1>Description</h1>
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Transforms between coordinate systems. After using TFormNormal the new

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components can be read with TFormedX(), TFormedY() and TFormedZ().

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This is exactly the same as TFormVector but with one added feature.

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After the transformation the new vector is 'normalized', meaning it

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is scaled to have length 1.

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For example, suppose the result of TFormVector is (1,2,2).

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This vector has length Sqr( 1*1 + 2*2 + 2*2 ) = Sqr( 9 ) = 3.

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This means TFormNormal would produce ( 1/3, 2/3, 2/3 ).
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<h1><a href=../3d_examples/TFormNormal.bb>Example</a></h1>
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; TFormNormal example
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Graphics3D 640, 480
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; Just a quick demonstration of the 'normalization' feature.
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TFormNormal 1,2,2, 0,0    ;  transform from world to world
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; The transformation from world to world does nothing.
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; But afterward the vector (1,2,2) is divided by the length 3.
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message$ = "The normalized vector is  ( "
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message = message + TFormedX() + ",  " + TFormedY() + ",  " + TFormedZ() + " )"
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Text 70, 180, message
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Flip
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WaitKey()
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End
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