draw arc

Hi there,
I am not sure if this is the correct category to post this.
I am trying to draw an arc and I cannot find any example or explanation concerning this. In the documentation it says:
arc(center, radius, startAngle, endAngle, clockwise)
but it didn't work.
Assuming the center has two coordinates, I tried:
arc((10, 10), 10, 20, 25, True)
and
arc(10, 10, 10, 20, 25, True)
, both didn't give a result.There were a few discussions and examples about arcTo(), but that didn't help me as I am trying something like this:
Did anybody try something similar before?
Thank you in advance for your help,
Petra

hello @Manufraktur,
here is a simple example using
arc()
to create a slice of pie:from math import sin, cos, radians, pi x0, y0 = 500, 500 # center point (A) radius = 350 angleStart = 10 angleTotal = 55 # draw circle with radius fill(0, 1, 0) oval(x0  radius, y0  radius, radius * 2, radius * 2) # calculate point (B) from angle and radius angleStartRadians = pi / 2 + radians(angleStart  90) x1 = x0 + radius * cos(angleStartRadians) y1 = y0 + radius * sin(angleStartRadians) # draw pie slice using arc B = BezierPath() B.moveTo((x0, y0)) B.lineTo((x1, y1)) B.arc((x0, y0), radius, angleStart, angleStart + angleTotal, False) B.closePath() fill(1, 0, 0) drawPath(B) # draw points labels fill(0, 0, 1) fontSize(120) text('A', (x0, y0)) text('B', (x1, y1))
arc()
is a bit tricky to use because pointB
andangleStart
need to be kept in synch manually.notice that, in this script,
B
is defined with distance & angle in relation toA
.if you prefer to define
B
by x/y position, as in your example, you’ll need to calculate the angle and distance ofB
in relation toA
:from math import hypot, atan2, degrees x0, y0 = 500, 500 # A x1, y1 = 872, 600 # B angleTotal = 55 radius = hypot(x1  x0, y1  y0) angleRadians = atan2(y1  y0, x1  x0) angleStart = degrees(angleRadians) # ...same as previous example...
hope this makes sense! cheers

hello @Manufraktur,
here is a simple example using
arc()
to create a slice of pie:from math import sin, cos, radians, pi x0, y0 = 500, 500 # center point (A) radius = 350 angleStart = 10 angleTotal = 55 # draw circle with radius fill(0, 1, 0) oval(x0  radius, y0  radius, radius * 2, radius * 2) # calculate point (B) from angle and radius angleStartRadians = pi / 2 + radians(angleStart  90) x1 = x0 + radius * cos(angleStartRadians) y1 = y0 + radius * sin(angleStartRadians) # draw pie slice using arc B = BezierPath() B.moveTo((x0, y0)) B.lineTo((x1, y1)) B.arc((x0, y0), radius, angleStart, angleStart + angleTotal, False) B.closePath() fill(1, 0, 0) drawPath(B) # draw points labels fill(0, 0, 1) fontSize(120) text('A', (x0, y0)) text('B', (x1, y1))
arc()
is a bit tricky to use because pointB
andangleStart
need to be kept in synch manually.notice that, in this script,
B
is defined with distance & angle in relation toA
.if you prefer to define
B
by x/y position, as in your example, you’ll need to calculate the angle and distance ofB
in relation toA
:from math import hypot, atan2, degrees x0, y0 = 500, 500 # A x1, y1 = 872, 600 # B angleTotal = 55 radius = hypot(x1  x0, y1  y0) angleRadians = atan2(y1  y0, x1  x0) angleStart = degrees(angleRadians) # ...same as previous example...
hope this makes sense! cheers

Dear @gferreira,
thanks for your quick reply. It seems like this could solve my problem. I will give it a try tomorrow and let you know.But thank you already so much for your help!
Petra

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