Entering Font Properties into Existing Python Code

FutureDays

Hello All,

A quick question, if I want to change my existing star properties to font properties, what might be the approach?

I have attached my code for comment.

def star(x, y, n, r1, r2):
    pts = []
    for i in range(n * 2):
        a = i * pi / n
        r = r2 if i % 2 else r1
        pts.append((x + r * sin(a), y + r * cos(a)))
    polygon(*pts)

CANVAS = 500
SQUARESIZE = 158
NSQUARES = 50
SQUAREDIST = 6

width = NSQUARES * SQUAREDIST

NFRAMES = 50

for frame in range(NFRAMES):
    newPage(CANVAS, CANVAS)
    frameDuration(1/20)
    
    fill(0)
    rect(0, 0, CANVAS, CANVAS)

    phase = 2 * pi * frame / NFRAMES  
    startAngle = 90 * sin(phase)
    endAngle = 90 * sin(phase + 0.5 * pi)

    translate(CANVAS/2 - width / 2, CANVAS/2)

    fill(1)
    stroke(0)

    for i in range(NSQUARES + 1):
        f = i / NSQUARES
        save()
        translate(i * SQUAREDIST, 0)
        scale(0.7, 1)
        rotate(startAngle + f * (endAngle - startAngle))

        star(0, 0, 5, SQUARESIZE, SQUARESIZE * 0.5)

        restore()

saveImage("StackOfStars.gif")

Thank you.

Robert

gferreira

hello Robert,

you can set text using text() and fontSize()
you’ll need to calculate the center of the text box using textSize()

here’s a modified version of your script. very little was changed. you can use a diff tool like quick diff to compare both versions.

CANVAS = 500
SQUARESIZE = 158
NSQUARES = 50
SQUAREDIST = 6

width = NSQUARES * SQUAREDIST

NFRAMES = 50

for frame in range(NFRAMES):
    newPage(CANVAS, CANVAS)
    frameDuration(1/20)

    fill(0)
    rect(0, 0, CANVAS, CANVAS)

    phase = 2 * pi * frame / NFRAMES  
    startAngle = 90 * sin(phase)
    endAngle = 90 * sin(phase + 0.5 * pi)

    translate(CANVAS/2 - width / 2, CANVAS/2)

    fill(1, 0.1)
    stroke(None)
    fontSize(480)

    for i in range(NSQUARES + 1):
        f = i / NSQUARES
        save()
        translate(i * SQUAREDIST, 0)
        scale(0.7, 1)
        rotate(startAngle + f * (endAngle - startAngle))

        w, h = textSize('a')
        text('a', (-w * 0.5, -h * 0.5))
        restore()

saveImage("StackOfChars.gif")

hope this helps… have fun!

FutureDays

Hello,

Once again, thank you for being so helpful.

Enjoy the day.

Best.

Robert