Anchor position used to align rendered MText/Text relative to its
insertion point.
Values 1-9 mirror the DXF MText attachment point (group code 71).
Values 10-12 are extensions used by AutoCAD TEXT/ATTRIB entities whose
vertical alignment is the typographic baseline (DXF group 73 = 0). The
baseline sits slightly above the bbox bottom by the descender height;
for SHX fonts the descender is negligible, so renderers may treat
Baseline* and Bottom* identically as a first approximation.
Anchor position used to align rendered MText/Text relative to its insertion point.
Values 1-9 mirror the DXF MText attachment point (group code 71). Values 10-12 are extensions used by AutoCAD TEXT/ATTRIB entities whose vertical alignment is the typographic baseline (DXF group 73 = 0). The baseline sits slightly above the bbox bottom by the descender height; for SHX fonts the descender is negligible, so renderers may treat
Baseline*andBottom*identically as a first approximation.