FXG server protocol

To manipulate a graphic, you can use reference points similar to compass points.

Using reference points, you can rotate, scale, or resize a graphic relative to a particular reference point. The reference points are northWest, north, northEast, west, center, east, southWest, south, and southeast. For example, by using the center reference point, you can rotate a graphic by 45° on its center. The following image shows where the reference points are located, a graphic, the graphic rotated 20° from its northWest reference point, and the graphic rotated 20° from its east reference point.

• A. Reference point locations
• B. A graphic
• C. The graphic rotated 20° from its northWest reference point
• D. The graphic rotated 20° from its east reference point

The syntax is:

referencePoint <string> (northWest, north, northEast, west, center, east, southWest, south, southEast, none, inherit)

The default value is none. The inherit value passes the s7:referencePoint value, provided it is not none, from the top of the page or group level to all children. The none setting means that there is no reference point for the object and the FXG coordinate system is used.

When a value from s7:referencePoint is used with groups (or paths, line elements, or any element that doesn’t have explicit width and height definitions), the value applies to the cumulative bounding box of the group. For example, the top-left point of the bounding box of all the objects in the group serves as the northWest reference point for the group; the bottom-right point serves as the southEast reference point.

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