public static WavefrontFormat DrawClothoRadius(this WavefrontFormat wf,
bool invertY, double a,
string radiusColor)
{
List <int> indices = new List <int>();
double lmax = ClothoUtils.GetMaxL(a);
int c = 100;
for (int i = -c; i <= c; i++)
{
double s = i * lmax / c;
double r = ClothoUtils.ClothoRadius(s, invertY, a);
if (double.IsInfinity(r))
{
r = SysMath.Sign(r) * 1000;
}
int v0 = wf.AddVertex(new Point2d(s, r));
indices.Add(v0);
//double dx, dy;
//MathUtils.DClotho(s, r, a, out dx, out dy);
}
wf.UseMaterial(radiusColor);
wf.AddLines(indices, false);
return(wf);
}
public static WavefrontFormat DrawClotho(this WavefrontFormat wf,
bool invertY, double a,
string clothoColor)
{
List <int> indices = new List <int>();
int c = 100;
for (int i = -c; i <= c; i++)
{
double lmax = ClothoUtils.GetMaxL(a);
double s = i * lmax / c;
double x, y;
ClothoUtils.Clotho(s, invertY, a, out x, out y);
int v0 = wf.AddVertex(new Point2d(x, y));
indices.Add(v0);
//double dx, dy;
//MathUtils.DClotho(s, r, a, out dx, out dy);
}
wf.UseMaterial(clothoColor);
wf.AddLines(indices, false);
return(wf);
}
public static WavefrontFormat DrawClotho(this WavefrontFormat wf,
bool invertY, double a,
string clothoColor,
string dirColor,
string normalColor,
string radColor)
{
List <int> indices = new List <int>();
List <Tuple <int, int> > normals = new List <Tuple <int, int> >();
List <Tuple <int, int> > dirs = new List <Tuple <int, int> >();
List <Tuple <int, int> > radius = new List <Tuple <int, int> >();
int c = 100;
for (int i = -c; i <= c; i++)
{
double lmax = ClothoUtils.GetMaxL(a);
double s = i * lmax / c;
Point2d xy = ClothoUtils.Clotho(s, invertY, a);
int v0 = wf.AddVertex(xy);
indices.Add(v0);
Vector2d n = ClothoUtils.ClothoLeftNormal(s, invertY, a).Unit;
int v1 = wf.AddVertex(xy.Add(n));
normals.Add(Tuple.Create(v0, v1));
double dir = ClothoUtils.ClothoTangent(s, invertY, a);
Vector2d d = Vector2d.NewRotate(dir);
int v2 = wf.AddVertex(xy.Add(d.Mul(5)));
dirs.Add(Tuple.Create(v0, v2));
double r = ClothoUtils.ClothoRadius(s, invertY, a);
if (double.IsInfinity(r))
{
r = SysMath.Sign(r) * 100;
}
int v3 = wf.AddVertex(xy.Add(n.Mul(r)));
radius.Add(Tuple.Create(v0, v3));
//double dx, dy;
//MathUtils.DClotho(s, r, a, out dx, out dy);
}
wf.UseMaterial(clothoColor);
wf.AddLines(indices, false);
wf.UseMaterial(normalColor);
foreach (Tuple <int, int> normal in normals)
{
wf.AddLines(new[] { normal.Item1, normal.Item2 }, false);
}
wf.UseMaterial(dirColor);
foreach (Tuple <int, int> dir in dirs)
{
wf.AddLines(new[] { dir.Item1, dir.Item2 }, false);
}
wf.UseMaterial(radColor);
foreach (Tuple <int, int> rr in radius)
{
wf.AddLines(new[] { rr.Item1, rr.Item2 }, false);
}
return(wf);
}