shaper PangoGlyphString terminology

A simple question,

When a shaper returns a PangoGlyphString does the
PangoGlyphString.PangoGlyphInfo.PangoGlyphGeometry.x_offset / .y_offset
refer to the offset from the base glyph of the grapheme cluster
containing the glyph or from the very 1st grapheme cluster of the
supplied text? That is, what exactly is the "nominal character position"
mentioned in the API documentation?


Patrick <pabos glypsube org>

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