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Overview
| Comment: | Work in progress on a 5x7 dot matrix font with nearly circular dots. Covers codes 0x21 thru 0x47. Plan is to complete the 96 printable ASCII slots. Modeled after the character generator ROM in the popular HD44780 LCD controller chip. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
5d5253b6c644c9aa92a3479a42f30316 |
| User & Date: | Ross 2016-03-10 01:02:42 |
Context
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2016-03-10
| ||
| 21:06 | Punched paper tape font, fed starting from left, with bit 0 at the top edge. Set at 72 point for approximately 100% scale of real paper tape. check-in: 3eea976223 user: Ross tags: trunk | |
| 01:02 | Work in progress on a 5x7 dot matrix font with nearly circular dots. Covers codes 0x21 thru 0x47. Plan is to complete the 96 printable ASCII slots. Modeled after the character generator ROM in the popular HD44780 LCD controller chip. check-in: 5d5253b6c6 user: Ross tags: trunk | |
|
2015-12-31
| ||
| 01:52 | Add a demostration of how to make kerning pairs. check-in: fd4cf2422a user: Ross tags: trunk | |
Changes
Changes to src/Makefile.
1 2 3 4 5 6 7 8 9 10 11 12 | all: dots.ttf dots.pdf %.ttf: %.ttx ttx -f -o $@ $^ %.pdf: %.tex lualatex --interaction=nonstopmode $*.tex lualatex --interaction=batchmode $*.tex %.pdf: %.ttf | | | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | all: dots.ttf dots.pdf %.ttf: %.ttx ttx -f -o $@ $^ %.pdf: %.tex lualatex --interaction=nonstopmode $*.tex lualatex --interaction=batchmode $*.tex %.pdf: %.ttf fret -s letter -g -oi $^ $@ testdots.pdf: testdots.tex dots.ttf testdots.tex: testdots.txt pandoc --standalone --smart -f markdown --to latex -o $@ $*.txt |
Changes to src/dotfonter.lua.
| ︙ | ︙ | |||
52 53 54 55 56 57 58 |
local ok, dotfont = pcall(dofile, args.basename .. ".dotfont")
if not ok then
print(args.basename, ':', dotfont)
os.exit(1)
end
V('loaded: ', args.basename, '.dotfont')
| | | 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 |
local ok, dotfont = pcall(dofile, args.basename .. ".dotfont")
if not ok then
print(args.basename, ':', dotfont)
os.exit(1)
end
V('loaded: ', args.basename, '.dotfont')
-- Run through the characters in the rom and assemble a glyph for each
-- one and map in in the font.
local n = 0
for _,glyph in ipairs(dotfont.Glyphs) do
ttfont.PlaceGlyph(glyph)
ttfont.MapGlyph("unicode", glyph.unicode, glyph.name)
if glyph.mac then
ttfont.MapGlyph("mac", glyph.mac, glyph.name)
|
| ︙ | ︙ |
Added src/fivebyseven.dotfont.
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--[[
#Five by Seven Dot Matrix for dotfonter
--]]
--[[
#License
Copyright (C) 2015 Cheshire Engineering Corp.
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--]]
--[[
##Dot Matrix display contours
These are drawn on a design grid with 1024 units per em. Assuming a
dot pitch of 128 units, the 5x7 dot bounding box is 640x896 units.
We'll draw a dot as a nearly circular blob filling a little less
than 60% of the available area, or fitting in a 110 units square.
That will leave about 18 units between dots.
]]
local dot = {
{ 9, 64, 1},
{ 13, 13, 0},
{ 64, 9, 1},
{115, 13, 0},
{119, 64, 1},
{115, 115, 0},
{ 64, 119, 1},
{ 13, 115, 0},
}
local function dotat(r,c)
local t={}
for i=1,#dot do
t[i] = { dot[i][1]+c*128, dot[i][2]+r*128, dot[i][3] }
end
return t
end
local function patdot(pat,r,c)
local row = pat[r+1] or '.....'
local dot = row:sub(c+1,c+1)
return dot == '#' or dot == 'X' or dot == '*'
end
-- Normalize a a glyph in the character ROM.
-- Create an array of countours from its pat entry and provide defaults
-- for metrics, name, and character codes.
local function Glyph(t)
assert(type(t)=='table')
local pat = assert(t.pat)
-- default metrics
t.width = t.width or 1024
t.lsb = t.lsb or 9
t.a, t.d = t.a or 896, t.d or 0
-- default mapping
assert(t.name)
if not t.unicode then t.unicode = t.name:byte() end
if not t.mac and t.unicode < 127 then t.mac = t.unicode end
if not t.win then t.win = t.unicode end
-- fill out array of contours
local lc = 7
for r=6,-1,-1 do
for c=0,4,1 do
if patdot(pat,6-r,c) then
t[#t+1] = dotat(r,c)
if c < lc then lc = c end
end
end
end
t.lsb = 9 + lc*128
return t
end
--[[
##Dot matrix character generator ROM
Each character is a table, passed through the Glyph function above.
The table has the pattern at pat, and optionally includes fields named
n for name, lsb for left side bearing, a for ascent, d for descent,
width for width, and more.
To make these easy to draw and edit, the character pattern itself will
be represented as an array of strings, one string for each row. Cells
containing '#' are lit. Other cells (by convention containing '.' ) are not
lit.
--]]
return {
Glyphs = {
--[[
Glyph{unicode=0x20, name='space', pat={
'.....',
'.....',
'.....',
'.....',
'.....',
'.....',
'.....',
}
},
--]]
Glyph{unicode=0x21, name='exclam', pat={
'..#..',
'..#..',
'..#..',
'..#..',
'.....',
'.....',
'..#..',
}
},
Glyph{unicode=0x22, name='quotdbl', pat={
'.#.#.',
'.#.#.',
'.#.#.',
'.....',
'.....',
'.....',
'.....',
}
},
Glyph{unicode=0x23, name='numbersign', pat={
'.#.#.',
'.#.#.',
'#####',
'.#.#.',
'#####',
'.#.#.',
'.#.#.',
}
},
Glyph{unicode=0x24, name='dollar', pat={
'..#..',
'.####',
'#.#..',
'.###.',
'..#.#',
'####.',
'..#..',
}
},
Glyph{unicode=0x25, name='percent', pat={
'##...',
'##..#',
'...#.',
'..#..',
'.#...',
'#..##',
'...##',
}
},
Glyph{unicode=0x26, name='ampersand', pat={
'.##..',
'#..#.',
'#.#..',
'.#...',
'#.#.#',
'#..#.',
'.##.#',
}
},
Glyph{unicode=0x27, name='quotesingle', pat={
'.##..',
'..#..',
'.#...',
'.....',
'.....',
'.....',
'.....',
}
},
Glyph{unicode=0x28, name='parenleft', pat={
'...#.',
'..#..',
'.#...',
'.#...',
'.#...',
'..#..',
'...#.',
}
},
Glyph{unicode=0x29, name='parenright', pat={
'.#...',
'..#..',
'...#.',
'...#.',
'...#.',
'..#..',
'.#...',
}
},
Glyph{unicode=0x2a, name='astrisk', pat={
'.....',
'..#..',
'#.#.#',
'.###.',
'#.#.#',
'..#..',
'.....',
}
},
Glyph{unicode=0x2b, name='plus', pat={
'.....',
'..#..',
'..#..',
'#####',
'..#..',
'..#..',
'.....',
}
},
Glyph{unicode=0x2c, name='comma', pat={
'.....',
'.....',
'.....',
'.....',
'.##..',
'..#..',
'.#...',
}
},
Glyph{unicode=0x2d, name='hyphen', pat={
'.....',
'.....',
'.....',
'#####',
'.....',
'.....',
'.....',
}
},
Glyph{unicode=0x2e, name='period', pat={
'.....',
'.....',
'.....',
'.....',
'.....',
'.##..',
'.##..',
}
},
Glyph{unicode=0x2f, name='slash', pat={
'.....',
'....#',
'...#.',
'..#..',
'.#...',
'#....',
'.....',
}
},
Glyph{unicode=0x30, name='zero', pat={
'.###.',
'#...#',
'#..##',
'#.#.#',
'##..#',
'#...#',
'.###.',
}
},
Glyph{unicode=0x31, name='one', pat={
'..#..',
'.##..',
'..#..',
'..#..',
'..#..',
'..#..',
'.###.',
}
},
Glyph{unicode=0x32, name='two', pat={
'.###.',
'#...#',
'....#',
'...#.',
'..#..',
'.#...',
'#####',
}
},
Glyph{unicode=0x33, name='three', pat={
'#####',
'...#.',
'..#..',
'...#.',
'....#',
'#...#',
'.###.',
}
},
Glyph{unicode=0x34, name='four', pat={
'...#.',
'..##.',
'.#.#.',
'#..#.',
'#####',
'...#.',
'...#.',
}
},
Glyph{unicode=0x35, name='five', pat={
'#####',
'#....',
'####.',
'....#',
'....#',
'#...#',
'.###.',
}
},
Glyph{unicode=0x36, name='six', pat={
'...##',
'..#..',
'.#...',
'####.',
'#...#',
'#...#',
'.###.',
}
},
Glyph{unicode=0x37, name='seven', pat={
'#####',
'#...#',
'....#',
'...#.',
'..#..',
'..#..',
'..#..',
}
},
Glyph{unicode=0x38, name='eight', pat={
'.###.',
'#...#',
'#...#',
'.###.',
'#...#',
'#...#',
'.###.',
}
},
Glyph{unicode=0x39, name='nine', pat={
'.###.',
'#...#',
'#...#',
'.####',
'....#',
'...#.',
'.##..',
}
},
Glyph{unicode=0x3a, name='colon', pat={
'.....',
'.##..',
'.##..',
'.....',
'.##..',
'.##..',
'.....',
}
},
Glyph{unicode=0x3b, name='semicolon', pat={
'.....',
'.##..',
'.##..',
'.....',
'.##..',
'..#..',
'.#...',
}
},
Glyph{unicode=0x3c, name='less', pat={
'...#.',
'..#..',
'.#...',
'#....',
'.#...',
'..#..',
'...#.',
}
},
Glyph{unicode=0x3d, name='equal', pat={
'.....',
'.....',
'#####',
'.....',
'#####',
'.....',
'.....',
}
},
Glyph{unicode=0x3e, name='greater', pat={
'.#...',
'..#..',
'...#.',
'....#',
'...#.',
'..#..',
'.#...',
}
},
Glyph{unicode=0x3f, name='question', pat={
'.###.',
'#...#',
'....#',
'...#.',
'..#..',
'.....',
'..#..',
}
},
Glyph{unicode=0x40, name='at', pat={
'.###.',
'#...#',
'....#',
'.##.#',
'#.#.#',
'#.#.#',
'.###.',
}
},
Glyph{unicode=0x41, name='A', pat={
'.###.',
'#...#',
'#...#',
'#...#',
'#####',
'#...#',
'#...#',
}
},
Glyph{unicode=0x42, name='B', pat={
'####.',
'#...#',
'#...#',
'####.',
'#...#',
'#...#',
'####.',
}
},
Glyph{unicode=0x43, name='C', pat={
'.###.',
'#...#',
'#....',
'#....',
'#....',
'#...#',
'.###.',
}
},
Glyph{unicode=0x44, name='D', pat={
'###..',
'#..#.',
'#...#',
'#...#',
'#...#',
'#..#.',
'###..',
}
},
Glyph{unicode=0x45, name='E', pat={
'#####',
'#....',
'#....',
'####.',
'#....',
'#....',
'#####',
}
},
Glyph{unicode=0x46, name='F', pat={
'#####',
'#....',
'#....',
'####.',
'#....',
'#....',
'#....',
}
},
Glyph{unicode=0x47, name='G', pat={
'.###.',
'#...#',
'#....',
'#.###',
'#...#',
'#...#',
'.####',
}
},
Glyph{unicode=0xff, name='BLOCK', pat={
'#####',
'#####',
'#####',
'#####',
'#####',
'#####',
'#####',
}
},
},
--[[ Set the strings.
Note that ffam, fsub, ufid, name, vers, and PSnm are required by Windows.
Of those, fsub defaults to 'Regular' and name gets a sensible defaults based
on ffam and fsub.
--]]
Names = {
copy='Copyright Ross Berteig 2016.',
ffam='Upright Five by Seven Dot Matrix',
PSnm='UprightFiveSevenDots-Regular',
ufid='Upright 5x7 Dot Matrix '.. os.date"%Y-%m-%d" ,
vers='Version 001.000',
demo='0123456789',
}
}
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