[mpeg-OTspec] New "Composite Font Standard" document

[Ken Lunde]

daan,

I apologize for missing that portion of the discussions, and thus not reflecting it in the document. This is what I have in the document right now:

> Attribute: ScaleFactorX (X-axis scaling factor, expressed as a percentage, and affecting everything, including metrics)
> Attribute: ScaleFactorY (Y-axis scaling factor, expressed as a percentage, and affecting everything, including metrics)
> Attribute: CompressFactorX (X-axis scaling factor, expressed as a percentage, and affecting only the glyphs, not including the metrics)
> Attribute: CompressFactorY (Y-axis scaling factor, expressed as a percentage, and affecting only the glyphs, not including the metrics)

Does the following meet with your approval:

Attribute: MetricsScalingX (X-axis metrics scaling, expressed as a scale factor, and affecting only metrics, leaving the glyph impression and attachment points unchanged)

Attribute: MetricsScalingY (Y-axis metrics scaling, expressed as a scale factor, and affecting only metrics, leaving the glyph impression and attachment points unchanged)

Attribute: Transformation (a complete transformation matrix, expressed as the array of six values representing a 2D transformation matrix as defined in the PostScript graphics model)

Regards...

-- Ken

On 2009/12/14, at 12:44, Daniel Strebe wrote:

> 
> Ken,
> 
> Thanks for these efforts.
> 
> As per discussion in September, modifications to metrics and glyph impression were to be as follows:
> 
> 	• Metric scaling, subject to x/y scale factors, and not applying to the glyph impression or attachment points.
> 	• Glyph transformation, subject to full 2-D graphic transformation matrix, not affecting metrics.
> 
> I propose these values should not be percentages, but rather scale factors; that is, 1.0 represents no scaling; 0.5 represents 50% shrinkage. The transformation matrix should be six values representing a 2-D scale/shear/rotation matrix plus translation as defined in the PostScript model.
> 
> Regards,
> — daan Strebe
> 
> 
> On 09/12/14 10:06, "Ken Lunde" <lunde at adobe.com> wrote:
> 
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> All,
> 
> In an effort to move this along, I spent the morning incorporated Leonardo's comments and suggestions, and produced a new version of the document. You should have received a "new document notification" email with the following URL:
> 
> http://groups.yahoo.com/group/mpeg-OTspec/files/CompositeFontStandard-12142009.pdf
> 
> I also hosted the same file on my website:
> 
> http://lundestudio.com/PDF/CompositeFontStandard-12142009.pdf
> 
> When you have a chance, please read this document and provide feedback.
> 
> Regards...
> 
> -- Ken
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