Re: [NTG-context] kpfonts, math, type 1 font

11 Jan 2014

      As for the first point: buggy afm files, I've tried "generate font"
from "fontforge" interface:
Even though I've let fontforge proceed to many auto-corrections, the
output produced
and then installed seems not to fit the bill: nothing is showing.

I reckon I've learned as much as can be done in one go:
=> I temporarily give up.

Nevertheless if one have information about the vector I wrote for bold Greek:
why that didn't work, I'll will gladly have it.

Chris

On Sat, Jan 11, 2014 at 7:36 PM, Elspeth McGullicuddy
 wrote:
...
As for the point: "bold uppercase greek letters aren’t mapped" I've inserted
the following at the beginning of file "pkfonts-math.lfg":
(I put the whole file it'll be easier to understand)
=> capital greek are not showing though
I've mimicked the file "lucida-typeone-math.lfg".
-- file: kpfonts-math.lfg
local mathencodings = fonts.encodings.math
mathencodings["tex-mrb"] = {
    [0x1D6AA] = 0x00, -- Gamma
    [0x1D6AB] = 0x01, -- Delta
    [0x1D6AF] = 0x02, -- Theta
    [0x1D6B2] = 0x03, -- Lambda
    [0x1D6B5] = 0x04, -- Xi
    [0x1D6B7] = 0x05, -- Pi
    [0x1D6BA] = 0x06, -- Sigma
    [0x1D6BC] = 0x07, -- Upsilon
    [0x1D6BD] = 0x08, -- Phi
    [0x1D6BF] = 0x09, -- Psi
    [0x1D6C0] = 0x0A, -- Omega
    [0x1D6A8] = 0x41, -- Alpha
    [0x1D6A9] = 0x42, -- Beta
--  [0x02145] = 0x44,
    [0x1D6AC] = 0x45, -- Epsilon
    [0x1D6AE] = 0x48, -- Eta
    [0x1D6B0] = 0x49, -- Iota
    [0x1D6B1] = 0x4B, -- Kappa
    [0x1D6B3] = 0x4D, -- Mu
    [0x1D6B4] = 0x4E, -- Nu
    [0x1D6B6] = 0x4F, -- Omicron
    [0x1D6B8] = 0x52, -- Rho
    [0x1D6BB] = 0x54, -- Tau
    [0x1D6BE] = 0x58, -- Chi
    [0x1D6AD] = 0x5A, -- Zeta
--    [0x00302] = 0x5E, -- [math]hat -- the real math one
--    [0x02146] = 0x64,
--    [0x02147] = 0x65,
--    [0x00303] = 0x7E, -- [math]tilde -- the real one
}
return {
   name = "kpfonts-math",
   version = "1.00",
   comment = "kpfonts, math part.",
   author = "Chris",
   copyright = "ConTeXt development team",
   mathematics = {
      mapfiles = {
         "kpfonts.map",
--         "mkiv-base.map",
      },
      virtuals = {
         ["kpfonts-rm"] = {                     -- MathRoman
            { name = "file:jkpmn8a", features = "virtualmath", main = true },
            { name = "jkpmia",  vector = "tex-mr", skewchar=0x7F },
            { name = "jkpmi", vector = "tex-mi", skewchar=0x7F },
            { name = "jkpmi", vector = "tex-it", skewchar=0x7F },
            { name = "jkpbn8a",  vector = "tex-bf", skewchar=0x7F },
            { name = "jkpbmi", vector = "tex-bi", skewchar=0x7F },
            { name = "jkpsy",  vector = "tex-sy", skewchar=0x30,
parameters = true },
            { name = "jkpex",  vector = "tex-ex", extension = true },
            { name = "jkpsya",  vector = "tex-ma" },
            { name = "jkpsyb",  vector = "tex-mb" },
         },
         ["kpfonts-bf"] = {                      -- MathRomanBold
            { name = "file:jkpbn8a", features = "virtualmath", main = true },
            { name = "jkpbmia",  vector = "tex-mrb", skewchar=0x7F },
-- this line modified accordingly
            { name = "jkpbmi", vector = "tex-mi", skewchar=0x7F },
            { name = "jkpbmi", vector = "tex-it", skewchar=0x7F },
            { name = "jkpbsy",  vector = "tex-sy", skewchar=0x30,
parameters = true },
            { name = "jkpbex",  vector = "tex-ex", extension = true },
            { name = "jkpbsya",  vector = "tex-ma" },
            { name = "jkpbsyb",  vector = "tex-mb" },
         }
      }
   }
}
On Sat, Jan 11, 2014 at 3:03 PM, Wolfgang Schuster
 wrote:
...
Am 10.01.2014 um 23:38 schrieb Elspeth McGullicuddy
:
(Gammas are squeezed together and \bf is ineffective, which is not so
with modern).
The characters are squeezed together because the font has wrong metrics.
If the assumption that "mdugmr7m.tfm" contains the metrics for
"md-gmm7m.pfb" is correct, then fontforge show it (mdugmr7m), contains
bold characters, which then should show.
When you use a Type 1 math font with ConTeXt MkIV all characters in the
different
files are mapped to the corresponding unicode points but these mappings
aren’t
complete (e.g. bold uppercase greek letters aren’t mapped).
For some fonts you would also need a custom mapping because not all fonts
put the symbols in the same position.
Wolfgang
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