Glyph

This defines a glyph used as part of a FontDefinition element. Glyphs are composed solely of vector drawing elements. Ann enclosed areas will be rendered using the specified font color using an even-odd fill style. All glyphs are defined in a square of width 51.2 and height of 51.2. The ascent of the glyph is specified using negative y-axis coordinates and the descent of the glyph is specified using positive y-axis coordinates. Positive coordinates on the x-axis are rendered to the right of the current drawing position and negative coordinates are drawn to the left. When rendering, all coordinate positions and advances are scaled by 1/51.2 * TextSize. All inner glyph boundaries must be specified in the opposite direction to the outer boundary otherwise the entire glyph will be filled.