/// <inheritdoc/>
 public void DrawSurface(ReadOnlySpan <Point3> vertices, SurfaceStyle style)
 {
     _Check(); Decompose3D.DrawSurface(_Target, vertices, style);
 }
 /// <inheritdoc/>
 public void DrawSurface(ReadOnlySpan <Point3> vertices, SurfaceStyle style)
 {
     Decompose3D.DrawSurface(this, vertices, style);
 }