General Discussion

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  UNSOLVED RFont subclass not generating "otf"
  ufo fontparts • • RicardGarcia  

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  Hi, @frederik: why generate a binary and read the the binary back in? see f1.generate("otfcff", "f1.otf") You mean I can use the opened ufo files right away as f1 and f2 to interpolate with, right? Give you new font a unique name based on the interp_factor. The font familyName and styleName makes up the postScriptName which has to be unique to set a font in drawBot (and everywhere else). In your case the font familyName and styleName will be "None" "None". This is not good... All right. I thought that after uninstalling the interpolated font I could generate another one I could use in the new page afterwards. So, in this case, would it make sense to set the same name for familyName while the styleName could be related to inerp_factor as you say?
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  SOLVED Delay after drawing
  animation performance saving • • monomonnik  

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  DrawBot has an abstract stack of "actions" which can be applied on different contexts. One context is your output: an animated gif. And there is always a drawBot context to create the preview pdf data. Using drawBot from the module helps in this case as @gferreira suggested.
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  SOLVED Problem with path closing
  bezierpath arc • • eduairet  

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  @gferreira great!!!! thank you very much.
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  SOLVED Identify when a word breaks
  text formatting • • eduairet  

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  @gferreira Thank you! I've used this in the following application but I noticed that even though I used hyphenation=False the words break in the middle so, I don't need it to break for this exercise but it's something I can't figure out: myVarFont = '/Library/Application Support/Adobe/Fonts/AstripeVariableGX.ttf' variations = listFontVariations(myVarFont) print(variations) axis1 = list(variations.keys())[0] minH = variations[axis1]['minValue'] maxH = variations[axis1]['maxValue'] axis2 = list(variations.keys())[1] minV = variations[axis2]['minValue'] maxV = variations[axis2]['maxValue'] #Words def textPage(*words, o=0, size='Tabloid', positive=True, h=True, txt=FormattedString(), myFont=myVarFont, fSize=30, lHeight=23.5): def canvas(): newPage(size) if positive is True: fill(1) if positive is False: fill(0) rect(o, o, width(), height()) canvas() txt.font( installFont(myFont) ) txt.fontSize(fSize) txt.openTypeFeatures(calt=True) txt.lineHeight(lHeight) hyphenation(False) lineLength = 0 textLength = (width()*height())/(lHeight) #print(textLength) while txt.size()[0] < textLength: for word in words: if lineLength % 350 == 0: txt.append('\n' + word, fontVariations={axis1:minH, axis2:minV}) else: txt.append(word, fontVariations={axis1:minH, axis2:minV}) lineLength += textSize(word)[0] #print(lineLength) textBox(txt, ( o, o, width(), height() )) #print(txt.size()[0]) textPage('PIBA', '2020', 'LIDERA') saveImage('~/Desktop/PIBA_2020_CORBATA.pdf') This is what I need from the image: And this is what I don't understand: By the way: The previous exercise worked this way: import os import unicodedata def strip_accents(text): try: text = unicode(text, 'utf-8') except NameError: # unicode is a default on python 3 pass text = unicodedata.normalize('NFD', text)\ .encode('ascii', 'ignore')\ .decode("utf-8") return str(text) class Canvas: def __init__(self, w, h, o = 0, bleed = 0): self.w = w self.h = h self.o = o self.bleed = bleed if self.bleed <= 0: newPage(self.w, self.h) else: newPage(self.w + self.bleed * 2, self.h + self.bleed * 2) translate(self.bleed, self.bleed) def color(self, r = 255, g = 255, b = 255, a = 100): self.r = r / 255 self.g = g / 255 self.b = b / 255 self.a = a / 100 return fill(self.r, self.g, self.b, self.a) def bg_stroke(self, r, g, b, a, sw): self.r, self.g, self.b, self.a = color_c(r, g, b, a) self.sw = sw stroke(self.r, self.g, self.b, self.a) strokeWidth(self.sw) fill(None) def grid(self, cols, rows, gutter, mTop, mBottom, mLeft, mRight, view=True): if view == True: self.cols = cols self.rows = rows self.gutter = gutter self.mTop = mTop - self.gutter self.mBottom = mBottom - self.gutter self.mLeft = mLeft - self.gutter self.mRight = mRight - self.gutter wd = (self.w - self.gutter * (self.cols + 1)) / self.cols - ((self.mRight + self.mLeft) / self.cols) hg = (self.h - self.gutter * (self.rows + 1)) / self.rows - ((self.mTop + self.mBottom) / self.rows) fill(None) strokeWidth(0.25) stroke(0, 1, 1) for self.col in range(self.cols): for self.row in range(self.rows): x = self.gutter + self.col * (wd + self.gutter) y = self.gutter + self.row * (hg + self.gutter) rect(x + self.mLeft, y + self.mBottom, wd, hg) def bg_square(self): if self.bleed <= 0: rect(self.o, self.o, self.w, self.h) else: rect(self.o - self.bleed, self.o - self.bleed, self.w + self.bleed * 2, self.h + self.bleed * 2) def bg_image(self, imgPath, px, py, angle, s): self.imgPath = imgPath self.px = px self.py = py self.angle = angle self.s = s srcWidth, srcHeight = imageSize(self.imgPath) dstWidth, dstHeight = self.w + s, self.h + s factorWidth = dstWidth / srcWidth factorHeight = dstHeight / srcHeight with savedState(): scale(factorWidth, factorHeight) rotate(self.angle) translate(self.px, self.py) image(imgPath, (0, 0)) def crop_marks(self): stroke(1) strokeWidth(1) line((self.o, -8), (self.o, -4)) line((-8, self.o), (-4, self.o)) line((self.o + self.w, -8), (self.o + self.w, -4)) line((8 + self.w, self.o), (4 + self.w, self.o)) line((self.o, 8 + self.h), (self.o, 4 + self.h)) line((-8, self.o + self.h), (-4, self.o + self.h)) line((self.o + self.w, 8 + self.h), (self.o + self.w, 4 + self.h)) line((8 + self.w, self.o + self.h), (4 + self.w, self.o + self.h)) stroke(0) strokeWidth(0.5) line((self.o, -8), (self.o, -4)) line((-8, self.o), (-4, self.o)) line((self.o + self.w, -8), (self.o + self.w, -4)) line((8 + self.w, self.o), (4 + self.w, self.o)) line((self.o, 8 + self.h), (self.o, 4 + self.h)) line((-8, self.o + self.h), (-4, self.o + self.h)) line((self.o + self.w, 8 + self.h), (self.o + self.w, 4 + self.h)) line((8 + self.w, self.o + self.h), (4 + self.w, self.o + self.h)) #Design #Margin gutter = 0 mTop = 8 mBottom = 8 mLeft = 8 mRight = 8 #Variable Font myVarFont = '/Library/Application Support/Adobe/Fonts/AstripeVariableGX.ttf' variations = listFontVariations(myVarFont) print(variations) #print(listFontGlyphNames()) axis1 = list(variations.keys())[0] minH = variations[axis1]['minValue'] maxH = variations[axis1]['maxValue'] axis2 = list(variations.keys())[1] minV = variations[axis2]['minValue'] maxV = variations[axis2]['maxValue'] num = 0 logo = 'PIBA_2020_GAFETES_LOGO.pdf' #Info gafetes_dir = {'Staff': 3, 'All Access': 1, 'Participante': 3, 'Prensa': 1, 'Académico': 3, 'Maestro de Ceremonia': 3, 'Jueces': 1, 'Edecán': 1, 'Sistemas': 1, 'Acompañante': 1, 'Director': 1} gafetes = [i for i in gafetes_dir.keys()] copias = [i for i in gafetes_dir.values()] def gafete(gf=0): #Frente page = Canvas(240, 150, 0, 8) page.color(255, 255, 255, 100) page.bg_square() #Text var = 400 minus = 0 lineHeight = 45 al = 'right' fs = 41 t = FormattedString() t.font(installFont(myVarFont)) t.fontSize(fs) t.fill(0) t.openTypeFeatures(calt=True) t.align(al) t.lineHeight(lineHeight) t.baselineShift(-15) for letter in gafetes[gf].upper(): t.append(letter, fontVariations={axis1:var, axis2:randint(minV, maxV)}) print(t.size()[0]) while t.size()[0] < page.w - 40 and var < 500: var += 10 print(var) if t.size()[0] > 300.0: lineHeight = 40 minus = 440.0 print('minus') if t.size()[0] < 140.0: lineHeight = 69 fs = 60 print('minus') t = FormattedString() t.font(installFont(myVarFont)) t.fontSize(fs) t.fill(0) t.openTypeFeatures(calt=True) t.align(al) t.lineHeight(lineHeight) t.baselineShift(-15) for letter in gafetes[gf].upper(): t.append(letter, fontVariations={axis1:var, axis2:randint(minV, maxV - minus)}) textBox(t, (mLeft, mBottom, page.w - mRight - mLeft, page.h - mTop - mBottom)) #Art page.bg_image('/Users/eduardo.aire/Documents/Documentos - EATs iMac/A/01_A_PROYECTOS/01_VIGENTES/2020_PIBA/PIBA_2020_FOTOS/29_PIBA_2020_ESTELASTRIPE.psd', -1140, -10, 270, 100) #Marks, guides and comments #fill(0, 0, 0, 0.1) #rect(mLeft, mBottom, page.w - mRight - mLeft, page.h - mTop - mBottom) page.crop_marks() page.grid(6, 3, 0, mTop, mBottom, mLeft, mRight, False) #Reverso page = Canvas(240, 150, 0, 8) page.color(255, 255, 255, 100) page.bg_square() #Logo imgPath = logo srcWidth, srcHeight = imageSize(imgPath) dstWidth, dstHeight = page.w, page.h factorWidth = dstWidth / srcWidth factorHeight = dstHeight / srcHeight with savedState(): scale(1) rotate(-90) translate(-150, 0) image(imgPath, (0,0)) #Marks, guides and comments #fill(0, 0, 0, 0.1) #rect(mLeft, mBottom, page.w - mRight - mLeft, page.h - mTop - mBottom) page.crop_marks() page.grid(6, 3, 0, mTop, mBottom, mLeft, mRight, False) saveImage('~/Desktop/PIBA_2020_GAFETES_{name}_{number:0>2}.pdf'.format(name = strip_accents(gafetes[gf].upper().replace(" ", "_")), number = str(num))) newDrawing() #gafete(6) for i in range(len(gafetes)+1): num=1 for j in range(copias[i - 1]): gafete(i - 1) num += 1
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  SOLVED Changing a list derived from a reference list also changes the reference list?
  • MauriceMeilleur  

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  g is just a reference to the same object. You need to create a copy to get a new object with the same content. import copy a = 1 b = [(a, a), (a + 1, a + 1)] print(id(b)) g = b print(id(g)) g = copy.deepcopy(b) print(id(g))
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  SOLVED Editing BezierPaths directly
  bezierpath • • MauriceMeilleur  

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  The documentation is adjusted and path.onCurvePoints and path.offCurvePoints and the path contours are immutable now. see https://github.com/typemytype/drawbot/pull/350
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  SOLVED Delete previously made pages
  • ryan  

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  Ah yes! Thanks @gferreira, I’ll try that.
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  UNSOLVED SVG attributes (viewbox)
  svg • • guidoferreyra  

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  continue here: https://github.com/typemytype/drawbot/issues/347
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  SOLVED Problems with cv2? Alternative for resizing saved images on the fly?
  • MauriceMeilleur  

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  That's a nice workaround, thanks! I didn't consider the resolution parameter since I was thinking in terms of the absolute size of the image in pixels only. Maybe I'll put in a feature request, since pixel dimensions feels like a more intuitive way to characterize output.
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  SOLVED PDF adding pages to existing file
  saving • • RicardGarcia  

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  Thanks Frederik! I think I've managed to have what I wanted to. Thanks a lot for bringing the whole problem to a more easy approach.
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  UNSOLVED TextBox and baseline alignment
  text • • RMFRT  

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  Thanks @gferreira I tried different ways to calculate the positioning of the first line in the textBox (looking for a magical match between the verticals metrics, lineHeight(), text size…) and I can never find a solution that works systematically from one font to another…
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  UNSOLVED Saving Image with different ColorProfile
  • imik  

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  Hey @frederik Thank you very much for your reply. I did some quick tests with the code you provided but it seems I have not achieved any positive result in saving the pages with the provided color profile data. The results were always GenericRGB for TIFF, JPG and PNG regardless of me also using some other ICC files. dataWithContentsOfFile_ returns an objective-c class NSConcreteData with the data represented as b'…' in it, what I guess is right and what imageColorSyncProfileData needs. Anyway, thanks again for your help.
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  Aha so that's how antialiasing in gif works..
  gif antialiasing discoveries pixels • • erik  

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  SOLVED OTF file: accessing contours & segments
  bezierpath • • RicardGarcia  

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  Thank you so much again, Gustavo!
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  SOLVED Sorting glyphs by "density"
  • RicardGarcia  

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  There may be useful code here: https://github.com/LettError/coverage
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  SOLVED Load font from filepath
  • lnp  

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  I should've tried that myself. Thank you!
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  SOLVED Import python file.
  • snaders  

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  @gferreira said in Import python file.: but unless you are importing code Clear. I will look into JSON then. I only load some settings for size and speed and such. Thanks again.
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  SOLVED Text to outlines > find objects with similar fill > Boolean operations?
  • MauriceMeilleur  

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  @frederik But I figured it out! Obviously the fill/stroke properties from the formatted strings won't find their way into the Bezier paths, but I can just add them to the paths directly. (I guess I could just use text, but I want some flexibility in the code for when Kast is a variable font.) Just have to write the code to clean/chop up strings into even lines and size the text to position/size the lines to make fields. A really useful Maurice-bot would tell me to do the work first and then post just to share the results and the code.
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  SOLVED A little arcTo() and geometry help?
  bezierpath recreations trigonometry • • MauriceMeilleur  

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  The finished product, a tribute to Bridget Riley's Rustle 6 (2015). import math canvasX = 600 canvasY = 600 nFrames = 120 side = canvasX/14 height = (side * sqrt(3))/2 center = (side/sqrt(3))/2 nX = 14 nY = 15 offsetX = side offsetY = height from datetime import * time = datetime.now() def interpolate(pt1, pt2, ratio): assert ratio <= 1 return (pt1[0] + (ratio * (pt2[0] - pt1[0])), pt1[1] + (ratio * (pt2[1] - pt1[1]))) def triangle(s, h, c, inout): assert inout >= 0 and inout <= 1 start = (-s/2, h/2) pivot = (0, h/2 - (c * 3)) target = (s/2, h/2) control = interpolate((s/2, -c/2), (0, h/2 - c), inout) radius = s # optimal distance to control points is (4/3)*tan(pi/(2n); thank you https://stackoverflow.com/users/16673/suma for answering this question https://stackoverflow.com/questions/1734745/how-to-create-circle-with-b%C3%A9zier-curves control_ratio = ((4/3 * tan(pi/12)) * radius) / (2 * c) controlP = interpolate(pivot, control, control_ratio) controlT = interpolate(target, control, control_ratio) triangle = BezierPath() triangle.moveTo(start) triangle.lineTo(pivot) triangle.curveTo(controlP, controlT, target) triangle.closePath() drawPath(triangle) def frame(x, y, m): f = BezierPath() g = BezierPath() f.rect(0, 0, x, y) g.rect(m, m, x - (2 * m), y - (2 * m)) f = f.difference(g) f.closePath() drawPath(f) # original Riley plan for Rustle 6 plan = [ [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], [0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0], [-1, 0, -1, 0, 0, 0, 0, 0, 1, 0, -1, 0, 0], [1, 0, 1, -1, 0, 0, -1, 0, 0, 0, 1, 0, 1, 0], [0, -1, 0, -1, 0, 0, 0, 1, 0, -1, 0, -1, 0], [0, 1, -1, 1, 0, 1, 0, 0, 0, 0, -1, 1, 0, 0], [-1, 0, -1, 0, 0, 0, 0, 0, 0, 0, -1, 0, -1], [1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0], [0, -1, 0, 0, 0, 0, 0, 0, 0, -1, 0, -1, 0], [0, -1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, -1, 0], [-1, 0, -1, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1], [-1, 0, -1, 0, 1, 0, 1, 0, 0, 0, 1, -1, -1, 0], [0, -1, 0, 0, 0, 0, 0, 0, 0, -1, 0, -1, -1, 0], [0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0], [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], ] for n in range(nFrames): newPage(canvasX, canvasY) frameDuration(1/30) ex = sin(radians(n * (360/nFrames))) fill(1) rect(0, 0, canvasX, canvasY) with savedState(): translate(canvasX/2, canvasY/2) fill(0) translate(-(nX - 1) * offsetX/2, (nY - 1) * offsetY/2) for i in range(nY): with savedState(): translate(0, i * -offsetY) if i % 2 == 0: for j in range(nX - 1): with savedState(): translate(offsetX/2 + (j * offsetX), 0) triangle(side, height, center, .5 - (ex * (plan[i][j] * .5))) else: for j in range(nX): with savedState(): translate(j * offsetX, 0) triangle(side, height, center, .5 - (ex * (plan[i][j] * .5))) fill(1) frame(canvasX, canvasY, side/2) saveImage('~/Desktop/riley_tribute_test_01_%s.gif' %time) The reference image:
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  SOLVED draw arc
  bezierpath trigonometry arc • • Manufraktur  

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  Dear @gferreira, I tried to use your suggestion it in my exercise and it worked fine. Thank you so much for your help! Amazing. Thank you and kind regards, Petra