They don't because there is no rhino object that is 'circle'. Once you place a circle in rhino using the circle command, it becomes a nurb curve. Still, it's able to detect if a nurb curve has the shape of a circle. So you can use the curve component to link the circle created in rhino and then connect a circle component to the curve component. I may be wrong here, but if i remember correctly the different 'native' geometry objects that rhino saves to a document are: points, polylines, nurb curves, nurbs surfaces, polysurfaces, meshes.... i think that's it.
On Jan 15, 3:54 pm, Chris Wilkins <[email protected]> wrote: > Some of the GH parameters appear to accept existing geometries in > Rhino (such as Curve and Point), while others do not (such as Line and > Circle). Is there something I've overlooked? I just drew a bunch of > circles and tried to set a list of circles, but had to retrace each of > the circles. I could just use the curve parameter, but I'm not trying > to solve any particluar problem right now - I'm just trying to > understand why it is that way. > > Here's a picture of which parameters behave which > way:http://groups.google.com/group/grasshopper3d/web/ParameterQuestion.jp... > > I can see why the Vector parameter would be that way, since I don't > think there is a Rhino geometry equivalent, but otherwise I'm not sure > for things like Circle and Line parameters. > > Thanks, > Chris
