<code go>
package main

import (
	"fmt"
	"flag"

	"github.com/fogleman/ln/ln"
)

func main() {

	// Parsing des arguments 

	flag.Parse()
	args := flag.Args()
	if len(args) != 1 {
		fmt.Println("Usage: obj2svg input.obj -> créera 2 fichiers input.obj.png et input.obj.svg")
		return
	}

	pngfilename := args[0] + ".png"
	svgfilename := args[0] + ".svg"

	fmt.Printf("pngfilename %s\n", pngfilename)
	fmt.Printf("svgfilename %s\n", svgfilename)

	scene := ln.Scene{}
	fmt.Printf("Loading %s\n", args[0])
	mesh, err := ln.LoadOBJ(args[0])
	if err != nil {
		panic(err)
	}
	mesh.UnitCube()
	scene.Add(ln.NewTransformedShape(mesh, ln.Rotate(ln.Vector{0, 1, 0}, 0.5)))
	// scene.Add(mesh)
	eye := ln.Vector{-0.5, 0.5, 2}
	center := ln.Vector{}
	up := ln.Vector{0, 1, 0}
	width := 1024.0
	height := 1024.0
	paths := scene.Render(eye, center, up, width, height, 35, 0.1, 100, 0.01)
	paths.WriteToPNG(pngfilename, width, height)
	paths.WriteToSVG(svgfilename, width, height)
}