public static Result ProjectPointsToBreps(RhinoDoc doc)
{
var gs = new GetObject();
gs.SetCommandPrompt("select surface");
gs.GeometryFilter = ObjectType.Surface | ObjectType.PolysrfFilter;
gs.DisablePreSelect();
gs.SubObjectSelect = false;
gs.Get();
if (gs.CommandResult() != Result.Success)
return gs.CommandResult();
var brep = gs.Object(0).Brep();
if (brep == null)
return Result.Failure;
var points = Intersection.ProjectPointsToBreps(
new List<Brep> {brep}, // brep on which to project
new List<Point3d> {new Point3d(0, 0, 0), new Point3d(3,0,3), new Point3d(-2,0,-2)}, // some random points to project
new Vector3d(0, 1, 0), // project on Y axis
doc.ModelAbsoluteTolerance);
if (points != null && points.Length > 0)
{
foreach (var point in points)
{
doc.Objects.AddPoint(point);
}
}
doc.Views.Redraw();
return Result.Success;
}
public static Result DrawMesh(RhinoDoc doc)
{
var gs = new GetObject();
gs.SetCommandPrompt("select sphere");
gs.GeometryFilter = ObjectType.Surface;
gs.DisablePreSelect();
gs.SubObjectSelect = false;
gs.Get();
if (gs.CommandResult() != Result.Success)
return gs.CommandResult();
Sphere sphere;
gs.Object(0).Surface().TryGetSphere(out sphere);
if (sphere.IsValid)
{
var mesh = Mesh.CreateFromSphere(sphere, 10, 10);
if (mesh == null)
return Result.Failure;
var conduit = new DrawBlueMeshConduit(mesh) {Enabled = true};
doc.Views.Redraw();
var in_str = "";
Rhino.Input.RhinoGet.GetString("press <Enter> to continue", true, ref in_str);
conduit.Enabled = false;
doc.Views.Redraw();
return Result.Success;
}
else
return Result.Failure;
}
protected override Result RunCommand(RhinoDoc doc, RunMode mode)
{
m_tolerance = doc.ModelAbsoluteTolerance;
// only use a custom geometry filter if no simpler filter does the job
// only curves
var gc = new GetObject();
gc.SetCommandPrompt("select curve");
gc.GeometryFilter = ObjectType.Curve;
gc.DisablePreSelect();
gc.SubObjectSelect = false;
gc.Get();
if (gc.CommandResult() != Result.Success)
return gc.CommandResult();
if (null == gc.Object(0).Curve())
return Result.Failure;
Rhino.RhinoApp.WriteLine("curve was selected");
// only closed curves
var gcc = new GetObject();
gcc.SetCommandPrompt("select closed curve");
gcc.GeometryFilter = ObjectType.Curve;
gcc.GeometryAttributeFilter = GeometryAttributeFilter.ClosedCurve;
gcc.DisablePreSelect();
gcc.SubObjectSelect = false;
gcc.Get();
if (gcc.CommandResult() != Result.Success)
return gcc.CommandResult();
if (null == gcc.Object(0).Curve())
return Result.Failure;
Rhino.RhinoApp.WriteLine("closed curve was selected");
// only circles with a radius of 10
var gcc10 = new GetObject();
gcc10.SetCommandPrompt("select circle with radius of 10");
gc.GeometryFilter = ObjectType.Curve;
gcc10.SetCustomGeometryFilter(CircleWithRadiusOf10GeometryFilter); // custom geometry filter
gcc10.DisablePreSelect();
gcc10.SubObjectSelect = false;
gcc10.Get();
if (gcc10.CommandResult() != Result.Success)
return gcc10.CommandResult();
if (null == gcc10.Object(0).Curve())
return Result.Failure;
RhinoApp.WriteLine("circle with radius of 10 was selected");
return Result.Success;
}
public static Result FilletCurves(RhinoDoc doc)
{
var gc1 = new GetObject();
gc1.DisablePreSelect();
gc1.SetCommandPrompt("Select first curve to fillet (close to the end you want to fillet)");
gc1.GeometryFilter = ObjectType.Curve;
gc1.GeometryAttributeFilter = GeometryAttributeFilter.OpenCurve;
gc1.Get();
if (gc1.CommandResult() != Result.Success)
return gc1.CommandResult();
var curve1_obj_ref = gc1.Object(0);
var curve1 = curve1_obj_ref.Curve();
if (curve1 == null) return Result.Failure;
var curve1_point_near_end = curve1_obj_ref.SelectionPoint();
if (curve1_point_near_end == Point3d.Unset)
return Result.Failure;
var gc2 = new GetObject();
gc2.DisablePreSelect();
gc2.SetCommandPrompt("Select second curve to fillet (close to the end you want to fillet)");
gc2.GeometryFilter = ObjectType.Curve;
gc2.GeometryAttributeFilter = GeometryAttributeFilter.OpenCurve;
gc2.Get();
if (gc2.CommandResult() != Result.Success)
return gc2.CommandResult();
var curve2_obj_ref = gc2.Object(0);
var curve2 = curve2_obj_ref.Curve();
if (curve2 == null) return Result.Failure;
var curve2_point_near_end = curve2_obj_ref.SelectionPoint();
if (curve2_point_near_end == Point3d.Unset)
return Result.Failure;
double radius = 0;
var rc = RhinoGet.GetNumber("fillet radius", false, ref radius);
if (rc != Result.Success) return rc;
var join = false;
var trim = true;
var arc_extension = true;
var fillet_curves = Curve.CreateFilletCurves(curve1, curve1_point_near_end, curve2, curve2_point_near_end, radius,
join, trim, arc_extension, doc.ModelAbsoluteTolerance, doc.ModelAngleToleranceDegrees);
if (fillet_curves == null /*|| fillet_curves.Length != 3*/)
return Result.Failure;
foreach(var fillet_curve in fillet_curves)
doc.Objects.AddCurve(fillet_curve);
doc.Views.Redraw();
return rc;
}
public static Result CurveSurfaceIntersect(RhinoDoc doc)
{
var gs = new GetObject();
gs.SetCommandPrompt("select brep");
gs.GeometryFilter = ObjectType.Brep;
gs.DisablePreSelect();
gs.SubObjectSelect = false;
gs.Get();
if (gs.CommandResult() != Result.Success)
return gs.CommandResult();
var brep = gs.Object(0).Brep();
var gc = new GetObject();
gc.SetCommandPrompt("select curve");
gc.GeometryFilter = ObjectType.Curve;
gc.DisablePreSelect();
gc.SubObjectSelect = false;
gc.Get();
if (gc.CommandResult() != Result.Success)
return gc.CommandResult();
var curve = gc.Object(0).Curve();
if (brep == null || curve == null)
return Result.Failure;
var tolerance = doc.ModelAbsoluteTolerance;
Point3d[] intersection_points;
Curve[] overlap_curves;
if (!Intersection.CurveBrep(curve, brep, tolerance, out overlap_curves, out intersection_points))
{
RhinoApp.WriteLine("curve brep intersection failed");
return Result.Nothing;
}
foreach (var overlap_curve in overlap_curves)
doc.Objects.AddCurve(overlap_curve);
foreach (var intersection_point in intersection_points)
doc.Objects.AddPoint(intersection_point);
RhinoApp.WriteLine("{0} overlap curves, and {1} intersection points", overlap_curves.Length, intersection_points.Length);
doc.Views.Redraw();
return Result.Success;
}
public static Result FurthestZOnSurfaceGivenXY(RhinoDoc doc)
{
#region user input
// select a surface
var gs = new GetObject();
gs.SetCommandPrompt("select surface");
gs.GeometryFilter = ObjectType.Surface;
gs.DisablePreSelect();
gs.SubObjectSelect = false;
gs.Get();
if (gs.CommandResult() != Result.Success)
return gs.CommandResult();
// get the brep
var brep = gs.Object(0).Brep();
if (brep == null)
return Result.Failure;
// get X and Y
double x = 0.0, y = 0.0;
var rc = RhinoGet.GetNumber("value of X coordinate", true, ref x);
if (rc != Result.Success)
return rc;
rc = RhinoGet.GetNumber("value of Y coordinate", true, ref y);
if (rc != Result.Success)
return rc;
#endregion
// an earlier version of this sample used a curve-brep intersection to find Z
//var maxZ = maxZIntersectionMethod(brep, x, y, doc.ModelAbsoluteTolerance);
// projecting points is another way to find Z
var max_z = MaxZProjectionMethod(brep, x, y, doc.ModelAbsoluteTolerance);
if (max_z != null)
{
RhinoApp.WriteLine("Maximum surface Z coordinate at X={0}, Y={1} is {2}", x, y, max_z);
doc.Objects.AddPoint(new Point3d(x, y, max_z.Value));
doc.Views.Redraw();
}
else
RhinoApp.WriteLine("no maximum surface Z coordinate at X={0}, Y={1} found.", x, y);
return Result.Success;
}
public static Result ExtendCurve(RhinoDoc doc)
{
ObjRef[] boundary_obj_refs;
var rc = RhinoGet.GetMultipleObjects("Select boundary objects", false, ObjectType.AnyObject, out boundary_obj_refs);
if (rc != Result.Success)
return rc;
if (boundary_obj_refs == null || boundary_obj_refs.Length == 0)
return Result.Nothing;
var gc = new GetObject();
gc.SetCommandPrompt("Select curve to extend");
gc.GeometryFilter = ObjectType.Curve;
gc.GeometryAttributeFilter = GeometryAttributeFilter.OpenCurve;
gc.DisablePreSelect ();
gc.Get();
if (gc.CommandResult() != Result.Success)
return gc.CommandResult();
var curve_obj_ref = gc.Object(0);
var curve = curve_obj_ref.Curve();
if (curve == null) return Result.Failure;
double t;
if (!curve.ClosestPoint(curve_obj_ref.SelectionPoint(), out t))
return Result.Failure;
var curve_end = t <= curve.Domain.Mid ? CurveEnd.Start : CurveEnd.End;
var geometry = boundary_obj_refs.Select(obj=> obj.Geometry());
var extended_curve = curve.Extend(curve_end, CurveExtensionStyle.Line, geometry);
if (extended_curve != null && extended_curve.IsValid)
{
if (!doc.Objects.Replace(curve_obj_ref.ObjectId, extended_curve))
return Result.Failure;
doc.Views.Redraw();
}
else
{
RhinoApp.WriteLine("No boundary object was intersected so curve not extended");
return Result.Nothing;
}
return Result.Success;
}
public static Result Loft(RhinoDoc doc)
{
// select curves to loft
var gs = new GetObject();
gs.SetCommandPrompt("select curves to loft");
gs.GeometryFilter = ObjectType.Curve;
gs.DisablePreSelect();
gs.SubObjectSelect = false;
gs.GetMultiple(2, 0);
if (gs.CommandResult() != Result.Success)
return gs.CommandResult();
var curves = gs.Objects().Select(obj => obj.Curve()).ToList();
var breps = Brep.CreateFromLoft(curves, Point3d.Unset, Point3d.Unset, LoftType.Tight, false);
foreach (var brep in breps)
doc.Objects.AddBrep(brep);
doc.Views.Redraw();
return Result.Success;
}
protected override Result RunCommand(RhinoDoc doc, RunMode mode)
{
// select a surface
var gs = new GetObject();
gs.SetCommandPrompt("select surface");
gs.GeometryFilter = ObjectType.Surface;
gs.DisablePreSelect();
gs.SubObjectSelect = false;
gs.Get();
if (gs.CommandResult() != Result.Success)
return gs.CommandResult();
// get the selected face
var face = gs.Object(0).Face();
if (face == null)
return Result.Failure;
// pick a point on the surface. Constain
// picking to the face.
var gp = new GetPoint();
gp.SetCommandPrompt("select point on surface");
gp.Constrain(face, false);
gp.Get();
if (gp.CommandResult() != Result.Success)
return gp.CommandResult();
// get the parameters of the point on the
// surface that is clesest to gp.Point()
double u, v;
if (face.ClosestPoint(gp.Point(), out u, out v))
{
var direction = face.NormalAt(u, v);
if (face.OrientationIsReversed)
direction.Reverse();
RhinoApp.WriteLine(
string.Format(
"Surface normal at uv({0:f},{1:f}) = ({2:f},{3:f},{4:f})",
u, v, direction.X, direction.Y, direction.Z));
}
return Result.Success;
}