Touch and Drag a Vector Line W/Titanium & lines.mod

gistfile1.txt

//Import Lines Module
var lines = require('com.lines');
 
//Window:
var win = Ti.UI.createWindow({
  backgroundColor:'black'
});
 
//First event listener TouchStart the Origin Point
win.addEventListener('touchstart',function(e){
  attrib = {
		color:'yellow',
		touchEnable:true,
		thickness:5
	};
	var startX = e.x;
	var startY = e.y;
		from = {x:startX,y:startY};
		to = {x:0,y:0};
		lineOne = lines.createLine(from,to,attrib);
});
 
//Second Listener TouchMove(drag) Endpoint
win.addEventListener('touchmove',function(e){
	win.remove(lineOne);
	var touchX = e.x;
	var touchY = e.y;
	to = {x:touchX,y:touchY};
	lineOne = lines.createLine(from,to,attrib);
	win.add(lineOne);
});
 
win.open();

Simple draw tool: touch for origin point, drag for endpoint.