Listing 2674

//Draw a bunch of lines of a fixed length from the centre of the circle
function circle_radiants( origin, radiusStart, radiusEnd, increment )
{
  //Create an array to hold all of the points
  var points = new Array( );
  var pointsIndex = 0;
 
  //Create an array to hold the subpath 
  var subpath = new Array( );
  var subpathIndex = 0;
 
  //Loop through the degrees of the circle
  for( angle = 0; angle <= 360; angle++ )
  {
    //Only create a line where determined by the incrementations
    if( ( angle % increment ) == 0  )
    {
      points[ pointsIndex ] = new Array( );
      points[ pointsIndex ][ 0 ]                = new PathPointInfo;
      points[ pointsIndex ][ 0 ].kind           = PointKind.CORNERPOINT;
      points[ pointsIndex ][ 0 ].anchor         = Array( ( ( radiusStart * Math.cos( angle * Math.PI/180 ) ) + origin[ 0 ] ), ( ( radiusStart * Math.sin( angle * Math.PI/180 ) ) + origin[ 1 ] ) );
      points[ pointsIndex ][ 0 ].leftDirection  = points[ pointsIndex ][ 0 ].anchor;
      points[ pointsIndex ][ 0 ].rightDirection = points[ pointsIndex ][ 0 ].anchor;
 
      points[ pointsIndex ][ 1 ]                = new PathPointInfo;
      points[ pointsIndex ][ 1 ].kind           = PointKind.CORNERPOINT;
      points[ pointsIndex ][ 1 ].anchor         = Array( ( ( radiusEnd * Math.cos( angle * Math.PI/180 ) ) + origin[ 0 ] ), ( ( radiusEnd * Math.sin( angle * Math.PI/180 ) ) + origin[ 1 ] ) );
      points[ pointsIndex ][ 1 ].leftDirection  = points[ pointsIndex ][ 1 ].anchor;
      points[ pointsIndex ][ 1 ].rightDirection = points[ pointsIndex ][ 1 ].anchor;
 
      //Add the collection of points to the path
      subpath[ subpathIndex ] = new SubPathInfo( );
      subpath[ subpathIndex ].operation = ShapeOperation.SHAPEXOR;
      subpath[ subpathIndex ].closed = false;
      subpath[ subpathIndex ].entireSubPath = points[ pointsIndex ];
 
      pointsIndex++;
      subpathIndex++;
    }
  }
 
  return( subpath );
}
 
 
//Save the current preferences
var startRulerUnits = app.preferences.rulerUnits
var startTypeUnits = app.preferences.typeUnits
var startDisplayDialogs = app.displayDialogs
 
//Set photoshop to use pixels and display no dialogs
app.preferences.rulerUnits = Units.PIXELS
app.preferences.typeUnits = TypeUnits.PIXELS
app.displayDialogs = DialogModes.NO
 
//First close all the open documents
//while( app.documents.length )
//{
//  app.activeDocument.close( )
//}
 
//Create a document to work with
//var docRef = app.documents.add( 3633, 1133, 300, "Circle" );
var docRef = app.activeDocument;
 
var artLayerRef = docRef.artLayers.add( );
docRef.activeLayer = artLayerRef;
 
//create the path item
var shape = docRef.pathItems.add("A Linex", circle_radiants( Array( 1000, 0 ), 125, 100, 2 ) )
 
// stroke it so we can see something
shape.strokePath(ToolType.BRUSH);
 
// Reset the application preferences
preferences.rulerUnits = startRulerUnits;
preferences.typeUnits = startTypeUnits;
displayDialogs = startDisplayDialogs;