Rotate function

Comments

• dave1707 Mod

  July 2017 Posts: 8,739

  @Drea I've read that several times, but I still don't know what you want to do. Can you give more details on what you mean.
• Drea

  July 2017 Posts: 8

  I mean like the clock hands, they rotate on a single point
• dave1707 Mod

  July 2017 Posts: 8,739

  Like this.

  function setup()
      a=0
  end
  
  function draw()
      background(40, 40, 50)
      a=a+1
      translate(300,300)
      rotate(a)
      sprite("Small World:Icon",0,0)    
  end
  
• Drea

  July 2017 Posts: 8

  It works with that sprite, but for example if i wanted to create a line (350,250,350,500) and then rotate
• Drea

  July 2017 Posts: 8

  Ops a part of my message was delated... i was saying and then rotate without changing the initial x and y positions, how should i do?
• dave1707 Mod

  July 2017 Posts: 8,739

  function setup()
      a=0
  end
  
  function draw()
      background(40, 40, 50)
      a=a+1
      translate(WIDTH/2,HEIGHT/2)
      rotate(a)
      stroke(255,0,0)
      strokeWidth(4)
      line(0,0,200,0)
  end
  
• Drea

  July 2017 Posts: 8

  Yess, i also did something really similar but i didn't realize that it rotated starting from 0,0, that s why i couldn't do it right. Thank you so much dave!
• dave1707 Mod

  July 2017 edited July 2017 Posts: 8,739

  Since you mentioned clock hands above, I thought I'd throw this in.

  function setup()
      a=0
      b=0
      fontSize(50)
  end
  
  function draw()
      background(40, 40, 50)    
      fill(223, 204, 170, 255)
      ellipse(WIDTH/2,HEIGHT/2,430)
      fill(255)
      text("12",WIDTH/2,HEIGHT/2+180)
      text("6",WIDTH/2,HEIGHT/2-180)
      text("3",WIDTH/2+180,HEIGHT/2)
      text("9",WIDTH/2-180,HEIGHT/2)    
      a=a-1
      pushMatrix()
      translate(WIDTH/2,HEIGHT/2)
      rotate(a)
      stroke(255,0,0)
      strokeWidth(6)
      line(0,0,0,200)
      popMatrix()    
      pushMatrix()
      translate(WIDTH/2,HEIGHT/2)
      rotate(a/12)
      strokeWidth(12)
      line(0,0,0,120)
      popMatrix()
      noStroke()
      fill(255)
      ellipse(WIDTH/2,HEIGHT/2,30)    
      noFill()
      stroke(0, 56, 255, 255)
      strokeWidth(8)
      ellipse(WIDTH/2,HEIGHT/2,430)
  end
  
• Drea

  July 2017 Posts: 8

  Nice job man