如何在Wikipedia SVG Map上投射Google Map点？

Question

I would like to use a Wikipedia SVG French map (http://fr.wikipedia.org/wiki/Fichier:France_location_map-Regions_and_departements.svg) for represent Google Map points (for exemple Paris : 48.855454,2.35568).

What formula can I use to project a Google Map point to pixel on this Wikipedia map ? (in PHP)

Thank !

(I am Fench, and I speak very bad english)

I resume :

I will convert Wikipedia SVG French map as PNG image. So I will have a HTML page with this image. I would like to project on this image points whose coordinates are taken from Google Map (for example Pairs, 48.855454,2.35568), so I must convert its in pixel, but I don't know how to...

I have informations about Wikipedia Map :

Equirectangular projection, WGS84 datum

Central meridian: 002° 06' E
True scale parallel: 46° 15' N

Geographic limits of the map :

Left : 005° 48' W
Right : 10° E
Top : 51° 30' N
Bottom : 41° N