On 3-12-2010 5:00, Procházka Lukáš Ing. - Pontex s. r. o. wrote:
Hello,
thanks for the example. I can see that:
- In another font(s) (at least in cambria in your example) bold Greek chars are OK.
- \bf in math mode causes chars to become "vertical", i.e. when I want to get slanted chars, I have to call \it or \sl or \bi explicitly. OK, I thought that the "slantedness" is kept by default when switching to bold in math mode, but no problem to switch to slanted/italics font manually.
In fact in math these are not font switches, but switches to a different alphabet. In traditional tex that normally is afont switch so one gets the other bold or whatever shapes for free, given that they are in that font (so it's a side effect of the way math alphabets are implemented), but not so in open type math.
- But I still have no idea how to "restore" Greek chars when using the *default* bold math font (i.e. when not using \setupbodyfont[<another-font>]. Or do I have to \setup???font[???] explicitly when I want to use Greek bold chars as well?
there is no default math font in mkiv: one uses regular math or bold math (given that there are two font(set)s available which is seldom the case) and within them gets bold or heavy alphabets (plus a few chars)
IMHO (I'm not expert in context) this depends on used fonts. See for example follwoing: <example file="ex1.tex"> \setupbodyfont[cambria]
\starttext This is a test. $a=\alpha$ $\bf a=\alpha$ $\bi a=\alpha$ \stoptext </example>
BTW, I not sure if I use "correct" way to switch fonts in math mode (in LaTeX commands to switch fonts are different in text and math mode, and I have big LaTex background, so for me this way is unusual :).
best try to convert to the unicode math approach: bold a-z is different unicode slots than a-z and in context the \bf command does that transformation on ascii a-z (you can also key in the official unicode chars); the benefit is that you can cut and paste the bold characters in pdf files i.e. you retain that property; a bold b is not a bold one in typographic sense but a special symbol that happens to use a bold rendering; in for instance a section title, one can have all math bold, and then this regular bold character will become real bold Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------