/// <inheritdoc />
public override Vector3 GetNormalAt(Vector2 uv)
{
float u = uv.X;
float v = uv.Y;
if ((v >= -0.5f * (float)Math.PI) && (v < 0.0f))
{
return(startCap.GetNormalAt(new Vector2(u, v + 0.5f * (float)Math.PI)));
}
else if ((v >= 0.0f) && (v < 1.0f))
{
return(shaft.GetNormalAt(new Vector2(u, v)));
}
else if ((v >= 1.0f) && (v <= 1.0f + 0.5f * (float)Math.PI))
{
return(endCap.GetNormalAt(new Vector2(u, 1.0f + 0.5f * (float)Math.PI - v)));
}
else
{
throw new ArgumentOutOfRangeException("v", "'v' must be between [-0.5 pi] and [1.0 + 0.5 pi].");
}
}
/// <inheritdoc />
public override dvec3 GetNormalAt(dvec2 uv)
{
DebugUtil.AssertAllFinite(uv, nameof(uv));
double u = uv.x;
double v = uv.y;
if ((v >= -0.5 * Math.PI) && (v < 0.0))
{
return(startCap.GetNormalAt(new dvec2(u, v + 0.5 * Math.PI)));
}
else if ((v >= 0.0) && (v < 1.0))
{
return(shaft.GetNormalAt(new dvec2(u, v)));
}
else if ((v >= 1.0) && (v <= 1.0 + 0.5 * Math.PI))
{
return(endCap.GetNormalAt(new dvec2(u, 1.0 + 0.5 * Math.PI - v)));
}
else
{
throw new ArgumentOutOfRangeException("v", "'v' must be between [-0.5 pi] and [1.0 + 0.5 pi].");
}
}
