Turning parts of cadintosh drawing into an html map

[jaladuvar]

Hey,

I've made a drawing of a small harbour - could be car park or a camping site( where the slots are single rectangles), and I would like to superimpose on the pdf picture an html map (with clickable slots to show details that vary for each of them, or changing colors on status - to sale, to hire, not free,...).

Is there an easy way to collect the x,y coordinates of each individual slot ?
The applescript support of cadintosh is apparently limited, and extraction of data from the dxf format not easy.

Anyone has ever met this issue ?

Help appreciated