How To Draw A Circle In Python Graphics

Question

You can use Turtle. Here is a unproblematic example:

          import turtle       t = turtle.Turtle()  #This function depict a circumvolve in x,y of radius r def drawCircle(ten,y,r):     t.pu()     t.goto(x,y-r) #-r because we want xy as middle and Turtles starts from edge     t.pd()     t.circumvolve(r)   #draw a circle in (50,xxx) with r=50 drawCircle(50,30,50)  #draw a circle in (20,l) with r=100 drawCircle(20,50,100)  #draw a circumvolve in (0,0) with r=10 drawCircle(0,0,10) #0,0 is the heart of the screen

This will be your output: Notation that the point (0,0) is the center of the screen. It uses Cartesian coordinates!

output

You can too alter a lot of graphics things (colour, line-width, etch...) in Turtle. Run into the documentation.

UPDATE

Your dimensions cannot be in micro meter: when you describe using Turtle or any other library the dimensions are espressed in pixels! If you want to utilize other measure out unit of measurement, y'all accept to convert all your values (10, y and r) in the new measure unit.

If you just want to zoom the paradigm, try to multiply x,y and r for a fixed number. Permit's do an example:

          import turtle       t = turtle.Turtle() t.hideturtle() #this hides the arrow t.speed(0) #plough off animation  #This function depict a circle in x,y of radius r zoomed by a n cistron def drawZoomedCircle(x,y,r,n):     t.pu()     t.goto(x*n,(y-r)*northward) #-r because nosotros want xy as center and Turtles starts from border     t.pd()     t.circle(r*n)  n=1  drawZoomedCircle(5,three,1,northward) drawZoomedCircle(ii,5,3,n) drawZoomedCircle(0,0,0.2,n)

The number northward is a "zoom cistron". When n=1 yous take:

example 1