Vertical space above glyphs in browser?


#21

You might also try the hheaLineGap.


#22

Hi George, I can’t see that hheaLineGap makes any difference either (testing large and small numbers), and textedit still being the only app I can test that LineGap makes a difference.

Going back to your initial example parameters you provided you had typoLineGap set to 0, but the parameter was present. Most commercial fonts I have checked have either a low number (20-30) or 200 for typoLineGap. But they all have the typoLineGap parameter.

Is there a risk in not adding any typoLineGap?

Thanks


#23

The line gap values are used to fill up the missing space, so all three methods (win, typo, hhea) add up to the same sum.


#24

Thanks Rainer. I think I understand what lineGap is supposed to do but it’s not making any visible effect when I test type and hhea. Ive not seen a font that uses win or hhea linegap , but they always have the typoLineGap parameter.

If I understand the tutorial correctly, OS/2 values (typo) should be making a difference in XPress (which I don’t have so can’t test) and InDesign which I can test but it’s not having any effect on line spacing whether a huge value or small.

Even though I can’t see the result in my apps, is there is a chance the typesetting might look odd in another app if typoLineGap isn’t set as a parameter? Or am I just not getting it?
Thanks


#25

As in any DTP app, the distance between lines is set by the user, also in InDesign. typoLineGap should therefore not make a difference. The difference you see is the first line offset in the text box. Quoting the tutorial:

The big layout apps, XPress and InDesign, use the typoAscender and typoDescender values to determine the offset of the first baseline in a text box and the minimum size of a text box below which the display of type is suppressed.

You have multiple options in the text box dialog, and at least one of them recognises the typoAscender.


#26

Absolutely, the user determines the space between the lines, whether in InDesign or Wordpress or Word… so what’s the point of typoLineGap?


#27

It is used for default linespacing in Office apps.


#28

Thanks Rainer! Makes sense as the only places I see it make a difference are Word, Pages and Textedit.
I appreciate all of your and George’s help with this.