view Rose - [source code]
Use this component to see the area visible from a given viewpoint across a 2D plane of vision. The component will create a circular surface in this plane of vision that is interrupted by context geometry to show the places that can be seen through this context geometry. -
context [Required]Breps or Meshes representing context geometry that can block the view around a given viewPoint.
plane [Default]Test Plane
radius [Required]A radius to make the view rose in Rhino model units. Note that, if the view rose is not extending past the _context geometry, you should increase this value.
viewRoseA surface representing the visible area from the viewpoint past the _context geometry.
blockedA set of curves representing the views blocked by the _context geometry from the viewpoint .
visibleAngleThe total angle of visibility from the viewpoint in the plane of visibility.