Offset artifacts at larger distances

[lorenrogers]

Thanks for the wonderful library! It's exactly what I need!

For my application, I'm looking to make multiple large offsets of a single shape. Unfortunately it seems like there are some artifacts that show up at larger distances.

Here's the source:

(function() {                                                                                                                                                          
  function RunDemo() {                                                                                                                                                 
                                                                                                                                                                       
    let canvas = document.querySelector('canvas')                                                                                                                      
    paper.setup(canvas)                                                                                                                                                
                                                                                                                                                                       
    function outset(item, distance, iterations) {                                                                                                                      
      for (var i = 0; i < iterations; i++) {                                                                                                                           
        PaperOffset.offset(item, i*distance);                                                                                                                          
      }                                                                                                                                                                
    }  

    let c3 = new paper.Path.Circle({ center: [180, 260], radius: 50, strokeColor: 'black' })                                                                           
    let c4 = new paper.Path.Circle({ center: [230, 260], radius: 40, strokeColor: 'black' })                                                                           
    let c5 = new paper.Path.Circle({ center: [205, 200], radius: 40, strokeColor: 'black' })                                                                           
    let cc1 = c3.unite(c4, { insert: true })                                                                                                                           
    let cc = cc1.unite(c5, { insert: true })                                                                                                                           
    c3.remove()                                                                                                                                                        
    c4.remove()                                                                                                                                                        
    c5.remove()                                                                                                                                                        
    cc1.remove()                                                                                                                                                       
    cc.bringToFront()                                                                                                                                                  
    outset(cc, 4, 30);                                                                                                                                                 
  }                                                                                                                                                                    
  window.onload = RunDemo                                                                                                                                              
})()

[glenzli]

I'll try to improve this, but I can't promise a timeline. Hope I can fix this soon.