coordinate system

From: <carrete@netcourrier.com> Date: Fri, 28 Apr 2000 09:08:00 +0200 (MET DST) To: www-svg@w3.org Cc: carrete@netcourrier.com Message-Id: <mnet2.956905680.2729.carrete@netcourrier.com> · This archive was generated by hypermail 2.2.0+W3C-0.50 : Monday, 4 September 2006 18:11:09 GMT

Hello

How can i put a graphic object (rectangle for example) on jpeg image area (1200px x 1200px) with coordinate systeme : 

new system coordinate (0.0 0.0) x (100.0 100.0) = 
real coordinate 1200 pixels x 1200 pixels 

The graphic object is for example positioned on x=0.1 y=0.1 

rect x= 0.1 y= 0.1 width=5.5in height=2in 

The picture must be drawing 1200 x 1200 pixels and the rectangle must be drawing 5.5inches x 2inches. 

What transformer apply ? 

Thanks very much

Regards
Herve

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