Erik van Blokland LettError

Type design, lettering, typography, fonts, tools for designers. Python, Robofont.

LettError / selectFont.py

Created February 24, 2018 17:00

Quick sketch for a replacement for SelectFont for RF3.

	# coding: utf-8
	# replacement for robofab's SelectFont
	import os
	import vanilla
	from mojo.roboFont import CurrentFont, CurrentGlyph, AllFonts, OpenWindow

	class SelectFontWindow(object):
	def __init__(self, callback=None):
	self.fonts = {}
	self.callback = callback

LettError / blinkenDraw.py

Last active March 14, 2018 16:38

Toy script for RF3: draw animated pixels in a tiny window, save to gif.

	# coding: utf-8
	import os
	import vanilla
	import mojo.canvas
	from mojo.UI import PutFile
	from random import random
	from mojo.drawingTools import *
	import drawBot
	from AppKit import NSTimer

LettError / comments.py

Created May 24, 2018 08:35

Drawbot sketch for drawing scribbles.

	size(1000,400)


	def scribble(pos, width, amplitude):
	save()
	x, y = pos
	start = x
	strokeWidth(1)
	fill(None)
	stroke(1-random()*0.2,0,0)

LettError / glyphAreaAndLightCalculations.py

Last active January 5, 2019 15:38

Full discussion here: http://letterror.com/articles/counting-photons.html

	# encoding: utf-8

	"""


	This is an exploration of some of the calculations we can do
	based on the size of a typographic detail in a shape, the distance
	of the shape to the eye, the average amount of light that shines
	on the shape, the amount of that reflected light that will be captured by the eye,
	the aperture of the pupil and some other factors.

LettError / angleRatioTool.py

Created February 28, 2019 09:57

EditTool script for RoboFont 3. Show the ratio between the length of incoming and outgoing sections of bcps and tangents.

	import AppKit
	from mojo.events import installTool, EditingTool, BaseEventTool, setActiveEventTool
	from mojo.drawingTools import *
	from mojo.UI import UpdateCurrentGlyphView
	from defconAppKit.windows.baseWindow import BaseWindowController
	import math

	#
	#
	# A visualisation for RoboFont

LettError / unicodeStyleWriter.py

Created February 28, 2019 14:24

A small converter from normal latin AZ,az to the Unicode math alphabets.

	import vanilla

	""" Unicode Stylewriter: Use the unicode styles to impress friends and families on the internet. """
	class StyleWriter(object):
	styles = [
	dict(title="𝔸", upper=0x1D538, lower=0x1D552, name='mathdoublestruck'),
	dict(title="𝖠", upper=0x1D5A0, lower=0x1D5BA, name='mathsans'),
	dict(title="𝗔", upper=0x1D5D4, lower=0x1D5EE, name='mathsansbold'),
	dict(title="𝐴", upper=0x1D434, lower=0x1D44E, name='mathitalic'),
	dict(title="𝐀", upper=0x1D400, lower=0x1D41A, name='mathbold'),

LettError / export_drawings.py

Created May 22, 2019 11:55

Export Robofont glyph image to iCloud, then reimport it again. After editing it on an ipad for instance.

	import drawBot as ctx
	import os
	from os.path import expanduser
	home = expanduser("~")

	imagesDir = "Library/Mobile Documents/com~apple~CloudDocs/RoboFont/"
	path = os.path.join(home, imagesDir)
	if not os.path.exists(path):
	os.makedirs(path)

LettError / prrrrrr.py

Created September 6, 2019 19:45

RoboFont: temporary designspace + designspaceChecker to report on glyph compatibility issues.


	"""

	test all open fonts on compatibility
	create temp designspace file
	align all fonts on a temp axis
	order does not matter
	run designspaceProblems
	present the data somehow

LettError / icons.txt

Created December 17, 2019 19:19

DeRez output of the ICON resources from RoboFog 1.6.3

LettError / drawbot_generate_teams_background.py

Created May 8, 2020 14:39

Generate a background for Teams with drawbot

	import os
	from os.path import expanduser

	home = expanduser("~")

	backgroundFolder = os.path.join(home, "Library/Application Support/Microsoft/Teams/Backgrounds/Uploads")
	size(1920, 1080)

	s = 10
	sw = int(width()/s)