/* -------------------------- */		
/*        scalesPlugin        8*/		
/* -------------------------- */		

var scalesPlugin = function scalesPlugin() {
 
	var multiplier = 1000
	
	var xsfdomain = {
	"m1": 	[-1000, 4, 1000], 
	"m2": 	[-1000, 4, 1000], 
	"n1": 	[-1000, 2, 1000], 
	"n2": 	[-1000, 2, 1000], 
	"n3": 	[-1000, 2, 1000], 
	"a": 		[-1000, 1,1000], 
	"b": 		[-1000, 1, 1000], 
	"v0": 	[-1, 0, 1], 
	"v1": 	[-1000, 0, 1000], 
	"tx": 	[-10, 40, 90], 
	"ty": 	[-10, 30, 60] , 
	"rot": 	[0, 90, 360], 
	"rad": 	[24, 128, 512], 
	"segs": [24,360,720] , 
	"pta": 	[0,20,512], 
	"ptb": 	[0,20,512], 
	"cf": 	[0, 500, 1000]}

	var xsfrange = {
	"m1": 	[-1000, 4, 1000], 
	"m2": 	[-1000, 4, 1000], 
	"n1": 	[-1000, 2, 1000], 
	"n2": 	[-1000, 2, 1000], 
	"n3": 	[-1000, 2, 1000], 
	"a": 		[-1000, 1,1000], 
	"b": 		[-1000, 1, 1000], 
	"v0": 	[-1,0,1], 
	"v1": 	[-1000,0,1000], 
	"tx": 	[-10,40,90], 
	"ty": 	[-10,30,60] , 
	"rot": 	[0, 90, 360], 
	"rad": 	[24, 128, 512], 
	"segs": [24,360,720] , 
	"pta": 	[0,80,1000], 
	"ptb": 	[0,80,1000], 
	"cf": 	[0,500, 1000]
	}

	var params = {}
	var scales = {}
	var format = d3.format(".4n")

	for (let k in xsfdomain) 	{ 		//set scales
				scales[k] = d3.scaleLinear()
					.domain([xsfdomain[k][0], xsfdomain[k][1], xsfdomain[k][2]])
					.range([xsfrange[k][0], xsfrange[k][1], xsfrange[k][2]])
		}
	
	__mapper({'scales': scales})	// update scales
		
		
	var scalesPlugin = function scalesPlugin() {}		

	scalesPlugin.render = function(params) {
			for (var p in params) {					// m in { ... }
			let k = p, v = params[p]		// k:m, v:12
			if ((k !== null) && (scales[k] !== undefined))  {
				let control = d3.select("#" + k)
				control.select("input").property("value", scales[k](v));
				control.select("span").text(format(v));
			}
		}
	}
	
	scalesPlugin.scales = function() {
		return scales
	}
	
	scalesPlugin.xsfdomain = function() {
		return xsfdomain
	}
	
	scalesPlugin.xsfrange = function() {
		return xsfrange
	}
	
	return scalesPlugin	
}
;