Thank you for sharing. In think it's a great idea. If there isn't, it should probably be done. Gcode, the code used by CNC driven machines use units. These units can either be in millimeters or inches. In HTML, you can define units in pixels, in, cm, mm, point size, pica, percentage. I would think it shouldn't be too difficult to extend SVG to do something similar but with a wider format. In CNC, the number of turns in the lead screw or motor is then used to calculate how much to step the motor to resolve to the selected unit. In SVG, perhaps a similar method can be possibly be used to translate to the pixels. Regards, Alex ===================================================================== Please note that this e-mail and any files transmitted from Memorial Sloan-Kettering Cancer Center may be privileged, confidential, and protected from disclosure under applicable law. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any reading, dissemination, distribution, copying, or other use of this communication or any of its attachments is strictly prohibited. If you have received this communication in error, please notify the sender immediately by replying to this message and deleting this message, any attachments, and all copies and backups from your computer.