voronoi.jsx

//  voronoi.jsx
//  draws voronoi diagrams in illustrator
//  using the javascript port from
//  gorhill --> https://github.com/gorhill 
//  you can find the code here:
//  https://github.com/gorhill/Javascript-Voronoi
//  under the same license as this one

//  the illustrator usage can be found here:
//  https://github.com/fabiantheblind/Javascript-Voronoi
//  the direct download is here: 
//  https://github.com/fabiantheblind/Javascript-Voronoi/zipball/master

//~ Copyright (c)  2012 Fabian "fabiantheblind" Morón Zirfas
//~ Permission is hereby granted, free of charge, to any person obtaining a copy of this
//~ software and associated documentation files (the "Software"), to deal in the Software 
//~ without restriction, including without limitation the rights to use, copy, modify, 
//~ merge, publish, distribute, sublicense, and/or sell copies of the Software, and to 
//~ permit persons to whom the Software is furnished to do so, subject to the following 
//~ conditions:
//~ The above copyright notice and this permission notice shall be included in all copies 
//~ or substantial portions of the Software.
//~ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
//~ INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
//~ PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 
//~ HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
//~ CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
//~ OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//~ see also http://www.opensource.org/licenses/mit-license.php



#include "rhill-voronoi-core.js"



main();
function main(){


  // this is the basic example by gorhill
  // var sites = [{x:300,y:300}, {x:100,y:100}, {x:200,y:500}, {x:250,y:450}, {x:500,y:150}];
  // xl, xr means x left, x right
  // yt, yb means y top, y bottom
  var bbox = {xl:0, xr:800, yt:0, yb:600};
  // pass an object which exhibits xl, xr, yt, yb properties. The bounding
  // box will be used to connect unbound edges, and to close open cells
  // $.writeln (util_inspect_properties(result.cells[0].site));
  // render, further analyze, etc.
  
  
  var docPreset = new DocumentPreset;
docPreset.units = RulerUnits.Pixels;

docPreset.width = bbox.xr;
docPreset.height = bbox.yb;
var doc = app.documents.addDocument("newFile",docPreset);
var tf = doc.textFrames.add();
    tf.contents = "VORONOI";
    tf.paragraphs[0].characterAttributes.size = 72;
    // try{
    tf.paragraphs[0].characterAttributes.textFont = app.textFonts.getByName("Unibody8SmallCaps-Regular");
    // }catch(err){
    //   alert("the desired font is not available");
    // }
    tf.paragraphs[0].paragraphAttributes.justification = Justification.CENTER;
    var it = tf.createOutline();
    it.translate((bbox.xr / 2),(bbox.yb / 2) );
    redraw();
    release(doc);
    redraw();

    var sites = get_pathPoints(doc);
    var voronoi = new Voronoi();

    result = voronoi.compute(sites, bbox);

    var lyr = doc.layers.add(); 
    doc.layers[1].locked = true;
    doc.layers[1].visible = false;
//~   
//~ var doc = app.documents.add(
//~                 DocumentColorSpace.RGB,
//~                 cm2pt (80),
//~                 cm2pt (60),
//~                 1,
//~                 DocumentArtboardLayout.GridByRow,
//~                 20.0,
//~                 3);

//~  draw_cells (result);
 draw_edges (doc, result);
}
    


  


function draw_edges(doc, result){
    
     var edges = new Array();

for(var i in result.edges){
     var pt = new Array();

  var va = new Array(result.edges[i].va.x, result.edges[i].va.y);
  var vb = new Array(result.edges[i].vb.x, result.edges[i].vb.y);
  pt.push(new Array(va[0],va[1]));
  pt.push(new Array(vb[0],vb[1]));
  edges.push({"path":pt});

  }


for(var k in edges){
var path = doc.pathItems.add();
redraw();
  path.setEntirePath(edges[k].path);
  }


var diam = 3;
for(var l in result.cells){
    var top = -result.cells[l].site.y;
    var left = result.cells[l].site.x;
    redraw();
        var ell = doc.pathItems.ellipse( -top + diam/2, left -diam/2, diam, diam, true,true );

    }
}

function cm2pt(val){
    var result = val * 28.346;
    return result;
    }



function get_pathPoints(doc){

    // var sites = [{x:300,y:300}, {x:100,y:100}, {x:200,y:500}, {x:250,y:450}, {x:500,y:150}];

  var list = new Array();
  for(var j = 0; j < doc.pathItems.length;j++){
    var path = doc.pathItems[j];
    var points = path.pathPoints;

  for (var i = 0; i < points.length; i++) {
    var p = points[i];
    var a = p.anchor;
    var px = a[0];
    var py = a[1]; 

    list.push({x:px,y:py});
  };
}
return list;
}




// ------------ release compound Paths ------------
// maybee try this
// http://forums.adobe.com/message/2140054

function release(doc){
while(doc.compoundPathItems.length > 0){
  try{release_compoundPath(doc);}catch(e){alert(e);}
  }
}

function release_compoundPath(doc){
  redraw();
var cp = doc.compoundPathItems[0];
var p = cp.pathItems[0];
  p.move(doc, ElementPlacement.PLACEATEND);
}


// ------------ insept properties and methods ------------
// the functions below are
// by Peter the Magnificant Kahrel
// http://www.kahrel.plus.com/indesign/scriptui.html
// look under "Displaying properties and methods"

function  util_inspect_properties (f) {
$.writeln (f.reflect.name);
var props = f.reflect.properties;
var array = [];
for (var i = 0; i < props.length; i++)
try {array.push (props[i].name + ": " + f[props[i].name])} catch (_){} array.sort ();
$.writeln (array.join ("\r"));
}


function util_inspect_methods (m) {
var props = m.reflect.methods.sort(); $.writeln ("\rMethods");
for (var i = 0; i < props.length; i++)
$.writeln (props[i].name);

}
// ------------ ------------