Add viewing port with border

cmd/basispatroon_broek/basispatroon_broek.go

@@ -25,9 +25,11 @@ func main() {
 		panic(err)
 	}
 
-	_, max := points.Normalize().Box()
+	points = points.Normalize()
+	_, max := points.Box()
 	canvas := svg.New(f)
-	canvas.Start(max.X, max.Y)
+
+	canvas.Startview(max.X+40, max.Y+40, -20, -20, max.X+40, max.Y+40)
 	broek.Voorbeen(canvas)
 	canvas.End()
 }

pkg/patroon/basispatroon_broek.go

@@ -33,6 +33,7 @@ func (b *Basispatroonbroek) GeneratePoints() util.PointMap {
 	p[4] = p[1].Above(b.Zithoogte / 4)
 	p[5] = p[1].Left(b.Heupwijdte / 12)
 	p[6] = p[4].Left(b.Heupwijdte / 12)
+	p[7] = p[0].Left(b.Heupwijdte / 12)
 	p[8] = p[6].Right(b.Heupwijdte/4 + 2)
 	p[9] = p[5].Left(b.Heupwijdte/16 + 5)
 	p[10] = p[7].Right(1)