Issue with Glyph Mapping

[quasado]

Using the free "Open Sans Regular Italic" TrueType font and requesting a glyph for the character "I" yields in a returned glyph code of zero which is surely wrong and returns the typical "no-char" rectangle. Using the glyph inspector of opentype.js however shows a number of "44" for the letter "I".
Having debugged seems that CmapEncoding.prototype.charToGlyphIndex returns zero but I couldn't figure why not having really understood what the code does.

The font file mentioned can be gathered from here: http://www.fontsquirrel.com/fonts/open-sans (Choose "Italic" in the style box, then download TTF)

[fpirsch]

Hello,
what do you mean by "requesting a glyph" ? What method are you using ?
font.charToGlyphIndex('I') (I as in uppercase i) returns 918. This font has a lot of different "I"s, and glyph 44 which is an I with serifs, feels strange in a sans-serif font.

[quasado]

hi,

thanks for getting back on this. I was ment to say that calling font.charToGlyph('I') on the given font returns the first glyph (the no-glyph rectangle) with a glyph index of zero.

[fpirsch]

It should work :

Do you get the same error with other characters, or with other fonts ?
Are you sure you are calling font.charToGlyph('I') from inside the opentype.load() callback ?

[quasado]

Hi,

Hmm this is really really weird. Yes, the call is done after the font is properly loaded. It works perfectly for all kind of glyphs except the uppercase I. Trying another font with the exact same code works as expected, so the code seems to be okay. I can really not explain myself what should be the case for this :(

Btw., we're using your great library in our free Design Tool Gravit (http://www.quasado.com/gravit) for custom text rendering allowing us to apply any kind of vector effects to text shapes :)

[quasado]

Ok, I am closing this. It seems that with the local version I do have it happens (I am using the latest one installed via bower). Doing the same with the online version works quite right.