Line spacing dissimilarity depending on font shape

mauro sacchetto
Posts: 353
Yet another problem with the font I'm working on (or at least I'm trying to work).
If the text is all in Roman, the line spacing is regular, that is homogeneous. If there is a italic word, the space between this line and the line above is larger. Which parameters can it depend on?
If the text is all in Roman, the line spacing is regular, that is homogeneous. If there is a italic word, the space between this line and the line above is larger. Which parameters can it depend on?
Tagged:
0
Comments
-
The italic is a different font. So probably it has different vertical metrics. Since you are working with FF, you should be informed that FF calculates the metrics automatically based on lowest and highest point in all glyphs. You can adjust your metrics manually in Element > Font properties (Ctrl+Shift+F) > OS/2 > Metrics. Check the "Relative" checkboxes off and set the values the same in both fonts.If you are certain no glyphs in the italic cross the ascent line (not that they shouldn't), maybe you have a rogue point somewhere.0
-
In creating the .otf I receive the message:
Missing Points at Extrema
for some glyphs... Can be this the problem'
In any case, which of these values must be equal? all or just some?
0 -
Oh solved changing the central boxes, thanx!
Even if after the changes still receiveMissing Points at <span>Extrema</span>
but it would be a glyphs problem, not a metric one (if I'm not wrong)
0 -
Read the Glyphs Vertical Metrics tutorial. The Glyphs UI is different but the principles are the same: https://glyphsapp.com/tutorials/vertical-metrics0
-
“Missing Points at Extrema” would be a warning, not necessarily an error.
0 -
It’s a warning that some glyphs do not have points at the extremes of the outline curves. This isn’t necessarily a problem, but it can mess with spacing in some applications.0
-
FF will take where the extremum would be as the highest/lowest point, so there's no worry here.0
-
Further to Adam's comment, "missing points at extrema" could possibly, in some font editors, cause errors in auto-calculating the metrics.
Another reason (besides rasterization and hinting) to get your extrema points right.2
Categories
- All Categories
- 46 Introductions
- 3.9K Typeface Design
- 482 Type Design Critiques
- 560 Type Design Software
- 1.1K Type Design Technique & Theory
- 649 Type Business
- 844 Font Technology
- 29 Punchcutting
- 517 Typography
- 119 Type Education
- 321 Type History
- 77 Type Resources
- 110 Lettering and Calligraphy
- 31 Lettering Critiques
- 79 Lettering Technique & Theory
- 544 Announcements
- 88 Events
- 112 Job Postings
- 170 Type Releases
- 173 Miscellaneous News
- 275 About TypeDrawers
- 53 TypeDrawers Announcements
- 120 Suggestions and Bug Reports