Coordinate system and units
In SVG, a coordinate system is similar to the Cartesian coordinate system—a pair of numbers that uniquely identifies a position on a plane. However, the origin is at the top left, the positive x-axis is pointing to the right, and the positive y-axis is pointing down.
Units
The only supported unit is the user coordinates, unless noted otherwise. All coordinates and length properties must be expressed without the unit symbols. This limitation applies only to SVG supported by FileMaker Pro.