topathd.js

/// illustrator script stub - converts paths to ... something else

var items = app.activeDocument.pageItems;
var strlog = '';
var ops = [];

function log(str) {
    strlog+= "\n" + str;
}

function pathOP(item) {
    var points = item.pathPoints, p, s, c1, c2, str;
    
    //move to first point
    var str = "M" + fc(item.pathPoints[0].anchor);
    for(var i = 0; i < item.pathPoints.length; i++) {
        
        //this is a closed shape or simply not the last point
        if(i < points.length - 1 || item.closed) {
            //draw a line to next point
            
            s = fc(getPoint(item, i).anchor);
            c1 = fc(getPoint(item, i).rightDirection);
            c2 = fc(getPoint(item, i+1).leftDirection);
            p = fc(getPoint(item, i + 1).anchor);
            
            if(s == c1 && p == c2) {
                //control points are equal to their anchor - it's a straight line
                //this also happens to be the last segment, just let the final "z" close it
                if(i == points.length - 1) break;
                
                //else draw the line
                str += "L";             
            } else if(c1 == c2) {
                //control points happen to be the same, make a quadratic bezier
                str += "Q" + c1 + " ";
            } else {
                //it's a cubic bezier
                str += "C" + c1 + " " + c2 + " ";
            }
            str += p;
            
        }
    
    }
    //close closed paths, just to be sure
    if(item.closed) str += 'z ';
    
    return '["path",["' +str + '"]]';
}

function fillOP(color) {
	var str;
	if(color.typename == 'SpotColor') {
		str = '[' + color.spot.color.cyan + ',' + color.spot.color.magenta + ',' + color.spot.color.yellow + ',' + color.spot.color.black + ']';
	} else if(color.typename == 'GrayColor') {
		str = '[0,0,0,' + (color.gray) + ']';
	} else if(color.typename == 'CMYKColor') {
		str = '[' + color.cyan + ',' + color.magenta + ',' + color.yellow + ',' + color.black + ']';
	} else if(color.typename == 'RGBColor') {
		str = '[' + color.red + ',' + color.green + ',' + color.blue + ']';
	}

	return '["fill",[' + str + ']]';
}

function getPoint(p, index) {
    return p.pathPoints[index % p.pathPoints.length];
}

function fc(coord) {
    return coord[0] + ',' + (-coord[1]);
}

function hPathItem(item) {

    if(item.hidden) return;
    
    ops.push(pathOP(item));
    
    item.hidden = true;

}

var item, i, j;



for(i = 0; i < app.activeDocument.pathItems.length; i++) {
    item = app.activeDocument.pathItems[i];
    if(item.hidden) continue;
    
    if(item.parent.typename == 'CompoundPathItem') {
        for(j = 0; j < item.parent.pathItems.length; j++) {
            hPathItem(item.parent.pathItems[j]);
        }
    } else {
        hPathItem(item);
    }

    if(item.filled) {
        
        ops.push(fillOP(item.fillColor));
    }
}



for(var i = 0; i < app.activeDocument.pathItems.length; i++) {
    item = app.activeDocument.pathItems[i];
    item.hidden = false;
}

var textFile = File('~/Desktop/ops.json');  
textFile.open('e');

textFile.write('[');
textFile.write(ops.join(',\n'));
textFile.write(']');

textFile.close();