/// <summary>
/// Calculates the area of an object
/// </summary>
public static double GetArea(IRhinoObject obj, double tol)
{
if (null != obj)
{
IOnCurve crv = OnCurve.ConstCast(obj.Geometry());
if (null != crv)
{
return(GetCurveArea(crv, tol));
}
IOnSurface srf = OnSurface.ConstCast(obj.Geometry());
if (null != srf)
{
return(GetSurfaceArea(srf));
}
IOnBrep brep = OnBrep.ConstCast(obj.Geometry());
if (null != brep)
{
return(GetBrepArea(brep));
}
IOnMesh mesh = OnMesh.ConstCast(obj.Geometry());
if (null != mesh)
{
return(GetMeshArea(mesh));
}
}
return(0.0);
}
///<summary> This gets called when when the user runs this command.</summary>
public override IRhinoCommand.result RunCommand(IRhinoCommandContext context)
{
MRhinoGetObject go = new MRhinoGetObject();
go.SetCommandPrompt("Select polysurface to explode");
go.SetGeometryFilter(IRhinoGetObject.GEOMETRY_TYPE_FILTER.polysrf_object);
go.GetObjects(1, 1);
if (go.CommandResult() != IRhinoCommand.result.success)
{
return(go.CommandResult());
}
IOnBrep brep = go.Object(0).Brep();
if (null == brep)
{
return(IRhinoCommand.result.failure);
}
for (int i = 0; i < brep.m_F.Count(); i++)
{
OnBrep faceBrep = brep.DuplicateFace(i, true);
if (null != faceBrep)
{
context.m_doc.AddBrepObject(faceBrep);
}
}
context.m_doc.DeleteObject(go.Object(0));
context.m_doc.Redraw();
return(IRhinoCommand.result.success);
}
///<summary> This gets called when when the user runs this command.</summary>
public override IRhinoCommand.result RunCommand(IRhinoCommandContext context)
{
MRhinoGetObject go = new MRhinoGetObject();
go.SetCommandPrompt("Select surface edge");
go.SetGeometryFilter(IRhinoGetObject.GEOMETRY_TYPE_FILTER.edge_object);
go.EnableSubObjectSelect();
go.GetObjects(1, 1);
if (go.CommandResult() != IRhinoCommand.result.success)
{
return(go.CommandResult());
}
MRhinoObjRef obj_ref = go.Object(0);
IOnBrepEdge brep_edge = obj_ref.Edge();
if (null == brep_edge)
{
return(IRhinoCommand.result.failure);
}
IOnBrep brep = brep_edge.Brep();
if (null == brep)
{
return(IRhinoCommand.result.failure);
}
// TODO: add functionality here...
return(IRhinoCommand.result.success);
}
public SampleCsSurfaceDirectionConduit()
: base(new MSupportChannels(MSupportChannels.SC_DRAWOVERLAY), false)
{
m_brep = null;
m_bFlip = false;
m_points = new ArrayOn3dPoint();
m_normals = new ArrayOn3dVector();
}
///<summary> This gets called when when the user runs this command.</summary>
public override IRhinoCommand.result RunCommand(IRhinoCommandContext context)
{
MRhinoGetObject go = new MRhinoGetObject();
go.SetCommandPrompt("Select two surfaces or polysurfacs to intersect");
go.SetGeometryFilter(IRhinoGetObject.GEOMETRY_TYPE_FILTER.surface_object);
go.EnableSubObjectSelect(false);
go.GetObjects(2, 2);
if (go.CommandResult() != IRhinoCommand.result.success)
{
return(go.CommandResult());
}
IOnBrep B0 = go.Object(0).Brep();
IOnBrep B1 = go.Object(1).Brep();
if (null == B0 || null == B1)
{
return(IRhinoCommand.result.failure);
}
OnCurve[] curves = null;
On3dPointArray points = null;
bool rc = RhUtil.RhinoIntersectBreps(B0, B1, context.m_doc.AbsoluteTolerance(), out curves, out points);
if (
false == rc ||
null == curves ||
0 == curves.Length ||
null == points ||
0 == curves.Length
)
{
RhUtil.RhinoApp().Print("No intersections found.\n");
return(IRhinoCommand.result.nothing);
}
if (null != curves)
{
for (int i = 0; i < curves.Length; i++)
{
context.m_doc.AddCurveObject(curves[i]);
}
}
if (null != points)
{
for (int i = 0; i < points.Count(); i++)
{
context.m_doc.AddPointObject(points[i]);
}
}
context.m_doc.Redraw();
return(IRhinoCommand.result.success);
}
private static double GetBrepVolume(IOnBrep brep)
{
double volume = 0.0;
if (null != brep)
{
OnMassProperties mp = new OnMassProperties();
if (brep.VolumeMassProperties(ref mp, true))
{
volume = Math.Abs(mp.Volume());
}
}
return(volume);
}
private static double GetBrepArea(IOnBrep brep)
{
double area = 0.0;
if (null != brep)
{
OnMassProperties mp = new OnMassProperties();
if (brep.AreaMassProperties(ref mp, true))
{
area = Math.Abs(mp.Area());
}
}
return(area);
}
public override bool CustomGeometryFilter(IRhinoObject obj, IOnGeometry geo, OnCOMPONENT_INDEX ci)
{
if (geo != null)
{
IOnCurve crv = OnCurve.ConstCast(geo);
if (crv != null)
{
if (crv.IsClosed() && crv.IsPlanar())
{
return(true);
}
else
{
return(false);
}
}
IOnBrep brep = OnBrep.ConstCast(geo);
if (brep != null)
{
if (brep.m_F.Count() == 1)
{
return(true);
}
else
{
return(false);
}
}
IOnSurface srf = OnSurface.ConstCast(geo);
if (srf != null)
{
return(true);
}
IOnMesh mesh = OnMesh.ConstCast(geo);
if (mesh != null)
{
return(true);
}
}
return(false);
}
///<summary> This gets called when when the user runs this command.</summary>
public override IRhinoCommand.result RunCommand(IRhinoCommandContext context)
{
MRhinoGetObject go = new MRhinoGetObject();
go.SetCommandPrompt("Select edge curve");
go.SetGeometryFilter(IRhinoGetObject.GEOMETRY_TYPE_FILTER.edge_object);
go.GetObjects(1, 1);
if (go.CommandResult() != IRhinoCommand.result.success)
return go.CommandResult();
IRhinoObject obj = go.Object(0).Object();
IOnBrep brep = go.Object(0).Brep();
IOnBrepEdge edge = go.Object(0).Edge();
if (null == obj || null == brep || null == edge)
return IRhinoCommand.result.failure;
MRhinoObjectAttributes attribs = new MRhinoObjectAttributes(obj.Attributes());
if (attribs.GroupCount() > 0)
attribs.RemoveFromAllGroups();
for (int i = 0; i < edge.TrimCount(); i++)
{
IOnBrepTrim trim = edge.Trim(i);
if (null != trim)
{
IOnBrepFace face = trim.Face();
if (null != face)
{
OnBrep face_brep = brep.DuplicateFace(face.m_face_index, true);
if (null != face_brep)
{
MRhinoBrepObject face_brep_obj = context.m_doc.AddBrepObject(face_brep, attribs);
if (null != face_brep_obj)
face_brep_obj.Select();
}
}
}
}
context.m_doc.Redraw();
return IRhinoCommand.result.success;
}
/// <summary>
/// Calculates the volume of an object
/// </summary>
public static double GetVolume(IRhinoObject obj)
{
if (null != obj && obj.IsSolid())
{
IOnSurface srf = OnSurface.ConstCast(obj.Geometry());
if (null != srf)
{
return(GetSurfaceVolume(srf));
}
IOnBrep brep = OnBrep.ConstCast(obj.Geometry());
if (null != brep)
{
return(GetBrepVolume(brep));
}
IOnMesh mesh = OnMesh.ConstCast(obj.Geometry());
if (null != mesh)
{
return(GetMeshVolume(mesh));
}
}
return(0.0);
}
private static double GetBrepVolume(IOnBrep brep)
{
double volume = 0.0;
if (null != brep)
{
OnMassProperties mp = new OnMassProperties();
if (brep.VolumeMassProperties(ref mp, true))
volume = Math.Abs(mp.Volume());
}
return volume;
}
private static double GetBrepArea(IOnBrep brep)
{
double area = 0.0;
if (null != brep)
{
OnMassProperties mp = new OnMassProperties();
if (brep.AreaMassProperties(ref mp, true))
area = Math.Abs(mp.Area());
}
return area;
}
public void SetBrep(IOnBrep brep)
{
if (null == brep || !brep.IsValid())
{
return;
}
m_brep = brep;
int face_count = m_brep.m_F.Count();
m_points.Reserve(face_count * SURFACE_ARROW_COUNT * SURFACE_ARROW_COUNT);
m_normals.Reserve(face_count * SURFACE_ARROW_COUNT * SURFACE_ARROW_COUNT);
m_points.SetCount(0);
m_normals.SetCount(0);
for (int i = 0; i < face_count; i++)
{
IOnBrepFace face = m_brep.m_F[i];
IOnBrepLoop loop = face.OuterLoop();
if (null == loop)
{
continue;
}
OnInterval udomain = face.Domain(0);
OnInterval vdomain = face.Domain(1);
if (loop.m_pbox.IsValid())
{
OnInterval domain = new OnInterval();
domain.Set(loop.m_pbox.m_min.x, loop.m_pbox.m_max.x);
domain.Intersection(udomain);
if (domain.IsIncreasing())
{
udomain.Set(domain.Min(), domain.Max());
}
domain.Set(loop.m_pbox.m_min.y, loop.m_pbox.m_max.y);
domain.Intersection(vdomain);
if (domain.IsIncreasing())
{
vdomain.Set(domain.Min(), domain.Max());
}
}
bool bUntrimmed = m_brep.FaceIsSurface(i);
ArrayOnInterval intervals = new ArrayOnInterval();
bool bRev = face.m_bRev;
for (double u = 0.0; u < SURFACE_ARROW_COUNT; u += 1.0)
{
double d = u / (SURFACE_ARROW_COUNT - 1.0);
double s = udomain.ParameterAt(d);
intervals.SetCount(0);
if (bUntrimmed || RhUtil.RhinoGetIsoIntervals(face, 1, s, intervals) > 0)
{
for (double v = 0.0; v < SURFACE_ARROW_COUNT; v += 1.0)
{
d = v / (SURFACE_ARROW_COUNT - 1.0);
double t = vdomain.ParameterAt(d);
bool bAdd = bUntrimmed;
for (int k = 0; !bAdd && k < intervals.Count(); k++)
{
if (intervals[k].Includes(t))
{
bAdd = true;
}
}
if (bAdd)
{
On3dPoint pt = new On3dPoint();
On3dVector du = new On3dVector();
On3dVector dv = new On3dVector();
On3dVector dir = new On3dVector();
if (face.EvNormal(s, t, ref pt, ref du, ref dv, ref dir))
{
m_points.Append(pt);
if (bRev)
{
dir.Reverse();
}
m_normals.Append(dir);
}
}
}
}
}
}
}
///<summary> This gets called when when the user runs this command.</summary>
public override IRhinoCommand.result RunCommand(IRhinoCommandContext context)
{
MRhinoGetObject go = new MRhinoGetObject();
go.SetCommandPrompt("Select surface or polysurface for direction display");
go.SetGeometryFilter(IRhinoGetObject.GEOMETRY_TYPE_FILTER.surface_object | IRhinoGetObject.GEOMETRY_TYPE_FILTER.polysrf_object);
go.GetObjects(1, 1);
if (go.CommandResult() != IRhinoCommand.result.success)
{
return(go.CommandResult());
}
MRhinoObjRef obj_ref = go.Object(0);
IOnBrep brep = obj_ref.Brep();
if (null == brep)
{
return(IRhinoCommand.result.failure);
}
bool bIsSolid = brep.IsSolid();
bool bFlip = false;
SampleCsSurfaceDirectionConduit conduit = new SampleCsSurfaceDirectionConduit();
conduit.SetBrep(brep);
conduit.Enable();
context.m_doc.Redraw();
MRhinoGetOption gf = new MRhinoGetOption();
gf.SetCommandPrompt("Press Enter when done");
gf.AcceptNothing();
if (!bIsSolid)
{
gf.AddCommandOption(new MRhinoCommandOptionName("Flip"));
}
for (; ;)
{
IRhinoGet.result res = gf.GetOption();
if (res == IRhinoGet.result.option)
{
bFlip = !bFlip;
conduit.SetFlip(bFlip);
context.m_doc.Redraw();
continue;
}
if (res == IRhinoGet.result.nothing)
{
if (!bIsSolid && bFlip)
{
OnBrep flipped_brep = new OnBrep(brep);
flipped_brep.Flip();
context.m_doc.ReplaceObject(obj_ref, flipped_brep);
}
}
break;
}
conduit.Disable();
context.m_doc.Redraw();
return(IRhinoCommand.result.success);
}
public void SetBrep(IOnBrep brep)
{
if (null == brep || !brep.IsValid())
return;
m_brep = brep;
int face_count = m_brep.m_F.Count();
m_points.Reserve(face_count * SURFACE_ARROW_COUNT * SURFACE_ARROW_COUNT);
m_normals.Reserve(face_count * SURFACE_ARROW_COUNT * SURFACE_ARROW_COUNT);
m_points.SetCount(0);
m_normals.SetCount(0);
for (int i = 0; i < face_count; i++)
{
IOnBrepFace face = m_brep.m_F[i];
IOnBrepLoop loop = face.OuterLoop();
if (null == loop)
continue;
OnInterval udomain = face.Domain(0);
OnInterval vdomain = face.Domain(1);
if (loop.m_pbox.IsValid())
{
OnInterval domain = new OnInterval();
domain.Set(loop.m_pbox.m_min.x, loop.m_pbox.m_max.x);
domain.Intersection(udomain);
if (domain.IsIncreasing())
udomain.Set(domain.Min(), domain.Max());
domain.Set(loop.m_pbox.m_min.y, loop.m_pbox.m_max.y);
domain.Intersection(vdomain);
if (domain.IsIncreasing())
vdomain.Set(domain.Min(), domain.Max());
}
bool bUntrimmed = m_brep.FaceIsSurface(i);
ArrayOnInterval intervals = new ArrayOnInterval();
bool bRev = face.m_bRev;
for (double u = 0.0; u < SURFACE_ARROW_COUNT; u += 1.0)
{
double d = u / (SURFACE_ARROW_COUNT - 1.0);
double s = udomain.ParameterAt(d);
intervals.SetCount(0);
if (bUntrimmed || RhUtil.RhinoGetIsoIntervals(face, 1, s, intervals) > 0)
{
for (double v = 0.0; v < SURFACE_ARROW_COUNT; v += 1.0)
{
d = v / (SURFACE_ARROW_COUNT - 1.0);
double t = vdomain.ParameterAt(d);
bool bAdd = bUntrimmed;
for (int k = 0; !bAdd && k < intervals.Count(); k++)
{
if (intervals[k].Includes(t))
bAdd = true;
}
if (bAdd)
{
On3dPoint pt = new On3dPoint();
On3dVector du = new On3dVector();
On3dVector dv = new On3dVector();
On3dVector dir = new On3dVector();
if (face.EvNormal(s, t, ref pt, ref du, ref dv, ref dir))
{
m_points.Append(pt);
if (bRev)
dir.Reverse();
m_normals.Append(dir);
}
}
}
}
}
}
}
public SampleCsSurfaceDirectionConduit()
: base(new MSupportChannels(MSupportChannels.SC_DRAWOVERLAY), false)
{
m_brep = null;
m_bFlip = false;
m_points = new ArrayOn3dPoint();
m_normals = new ArrayOn3dVector();
}
