/// <summary>
/// 由中心点和半径在UCS中创建球体
/// </summary>
/// <param name="cenPt">中心点</param>
/// <param name="radius">半径</param>
/// <returns>返回创建的球体的Id</returns>
public static ObjectId AddSphere(Point3d cenPt, double radius)
{
Database db = HostApplicationServices.WorkingDatabase;
Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
if (radius < 0.00001)
{
ed.WriteMessage("\n参数不当,创建球体失败！");
return(ObjectId.Null);
}
// 创建
Solid3d ent = new Solid3d();
ent.RecordHistory = true;
ent.CreateSphere(radius);
// 位置调整
Matrix3d mt = ed.CurrentUserCoordinateSystem;
mt = mt * Matrix3d.Displacement(cenPt - Point3d.Origin);
ent.TransformBy(mt);
ObjectId entId = ObjectId.Null;
using (Transaction tr = db.TransactionManager.StartTransaction())
{
entId = db.AddToModelSpace(ent);
tr.Commit();
}
return(entId);
}
// 由中心点和半径创建球体的函数.
public static ObjectId AddSphere(Point3d cenPt, double radius)
{
Solid3d ent = new Solid3d();
ent.CreateSphere(radius);
Matrix3d mt = Matrix3d.Displacement(cenPt - Point3d.Origin);
ent.TransformBy(mt);
ObjectId entId = AppendEntity(ent);
return(entId);
}
public void Create3DBox()
{
Solid3d bbb = new Solid3d();
bbb.CreatePyramid(50, 3, 50, 0);
bbb.Color = Autodesk.AutoCAD.Colors.Color.FromRgb(0, 250, 0);
ToModelSpace(bbb);
Solid3d bbbb = new Solid3d();
bbbb.CreateSphere(50);
// Move(bbbb, new Point3d(-50, -50, -50));
ToModelSpace(bbbb);
}
private Solid3d CreateSphere()
{
// create the sphere
Solid3d sphere = new Solid3d();
sphere.SetDatabaseDefaults();
// let's create a random number generator for the sphere
Random randomGenerator = new Random();
double radius = randomGenerator.NextDouble() * 50;
// create the sphere
sphere.CreateSphere(radius);
// randomize the position using the randomizer!
Matrix3d randomMover;
double xVec = randomGenerator.NextDouble() * 500;
double yVec = randomGenerator.NextDouble() * 400;
double zVec = randomGenerator.NextDouble() * 300;
randomMover = Matrix3d.Displacement(new Vector3d(xVec, yVec, zVec));
// now apply the the transform to the sphere
sphere.TransformBy(randomMover);
// set the material name
const string matname = "Sitework.Paving - Surfacing.Riverstone.Mortared";
using (DBDictionary matdict = mPreviewCtrl.mCurrentDwg.MaterialDictionaryId.Open(OpenMode.ForRead) as DBDictionary)
{
// if we have found the material, set it to the sphere
if (matdict.Contains(matname))
{
sphere.Material = matname;
}
else
{
// get the editor object
Editor ed = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
ed.WriteMessage("\nMaterial (" + matname + ") not found" + " - sphere will be rendered without it.", matname);
}
}
return(sphere);
}
protected override bool WorldDrawData(WorldDraw draw)
{
if (!base.WorldDrawData(draw))
return false;
TransientManager ctm =
TransientManager.CurrentTransientManager;
IntegerCollection ints = new IntegerCollection();
// Draw any outstanding segments (and do so only once)
bool wasCalibrating = _calibrating;
while (_lineSegs.Count > 0)
{
// Get the line segment and remove it from the list
LineSegment3d ls = _lineSegs[0];
_lineSegs.RemoveAt(0);
// Create an equivalent, red, database line
// (or yellow, if calibrating)
Line ln = new Line(ls.StartPoint, ls.EndPoint);
ln.ColorIndex = (wasCalibrating ? 2 : 1);
_lines.Add(ln);
// Draw it as transient graphics
ctm.AddTransient(
ln, TransientDrawingMode.DirectShortTerm,
128, ints
);
_calibrating = false;
}
if (_drawing)
{
if (_cursor == null)
{
if (_vertices.Count > 0)
{
// Clear our skeleton
ClearTransients();
_curPt = _vertices[_vertices.Count - 1];
// Make our sphere 10cm in diameter (5cm radius)
Solid3d sol = new Solid3d();
sol.CreateSphere(0.05);
_cursor = sol;
_cursor.TransformBy(
Matrix3d.Displacement(_curPt - Point3d.Origin)
);
_cursor.ColorIndex = 2;
ctm.AddTransient(
_cursor, TransientDrawingMode.DirectShortTerm,
128, ints
);
}
}
else
{
if (_vertices.Count > 0)
{
Point3d newPt = _vertices[_vertices.Count - 1];
_cursor.TransformBy(
Matrix3d.Displacement(newPt - _curPt)
);
_curPt = newPt;
ctm.UpdateTransient(_cursor, ints);
}
}
}
else // !_drawing
{
if (_cursor != null)
{
ctm.EraseTransient(_cursor, ints);
_cursor.Dispose();
_cursor = null;
}
}
return true;
}
protected override bool WorldDrawData(WorldDraw draw)
{
if (!base.WorldDrawData(draw))
return false;
short origCol = draw.SubEntityTraits.Color;
if (_resizing)
{
using (Solid3d sphere = new Solid3d())
{
try
{
sphere.CreateSphere(_profRad);
if (sphere != null)
{
sphere.TransformBy(
Matrix3d.Displacement(
_resizeLocation - Point3d.Origin
)
);
// Draw the cursor
draw.SubEntityTraits.Color = ColorIndex;
sphere.WorldDraw(draw);
}
}
catch (System.Exception ex)
{
_doc.Editor.WriteMessage(
"\nException: {0} - {1}", ex.Message, ex.InnerException
);
}
finally
{
draw.SubEntityTraits.Color = origCol;
}
}
return true;
}
// If we're currently drawing...
if (_drawing)
{
Solid3d sol = null;
try
{
// If we have vertices that haven't yet been drawn...
if (_vertices.Count > 1 //&&
//_vertices.Count - 1 > _lastDrawnVertex
)
{
// ... generate a tube
if (GenerateTube(_profRad, _vertices, out sol))
{
// We now need to break the pipe...
// If it was created, add it to our list to draw
_created.Add(sol);
sol = null;
// Clear all but the last vertex to draw from
// next time
ClearAllButLast(_vertices, 1);
}
}
}
catch
{
// If the tube generation failed...
if (sol != null)
{
sol.Dispose();
}
// Loop, creating the most recent successful tube we can
bool succeeded = false;
int n = 1;
do
{
try
{
// Generate the previous, working tube using all
// but the last points (if it fails, one more is
// excluded per iteration, until we get a working
// tube)
GenerateTube(
_profRad, GetAllButLast(_vertices, n++), out sol
);
_created.Add(sol);
sol = null;
succeeded = true;
}
catch { }
}
while (!succeeded && n < _vertices.Count);
if (succeeded)
{
ClearAllButLast(_vertices, n - 1);
if (_vertices.Count > 1)
{
try
{
// And generate a tube for the remaining vertices
GenerateTube(_profRad, _vertices, out sol);
}
catch
{
succeeded = false;
}
}
}
if (!succeeded && sol != null)
{
sol.Dispose();
sol = null;
}
}
// Draw our solid(s)
draw.SubEntityTraits.Color = ColorIndex;
foreach (DBObject obj in _created)
{
Entity ent = obj as Entity;
if (ent != null)
{
try
{
ent.WorldDraw(draw);
}
catch
{}
}
}
if (sol != null)
{
try
{
sol.WorldDraw(draw);
}
catch
{ }
}
if (_vertices.Count > 0)
{
Point3d lastPt = _vertices[_vertices.Count - 1];
// Create a cursor sphere
using (Solid3d cursor = new Solid3d())
{
try
{
cursor.CreateSphere(_profRad);
if (cursor != null)
{
cursor.TransformBy(
Matrix3d.Displacement(lastPt - Point3d.Origin)
);
// Draw the cursor
draw.SubEntityTraits.Color = ColorIndex;
cursor.WorldDraw(draw);
}
}
catch { }
}
}
if (sol != null)
{
sol.Dispose();
}
}
draw.SubEntityTraits.Color = origCol;
return true;
}
protected override bool WorldDrawData(WorldDraw draw)
{
if (!base.WorldDrawData(draw))
{
return(false);
}
short origCol = draw.SubEntityTraits.Color;
if (_resizing)
{
using (Solid3d sphere = new Solid3d())
{
try
{
sphere.CreateSphere(_profRad);
if (sphere != null)
{
sphere.TransformBy(
Matrix3d.Displacement(
_resizeLocation - Point3d.Origin
)
);
// Draw the cursor
draw.SubEntityTraits.Color = ColorIndex;
sphere.WorldDraw(draw);
}
}
catch (System.Exception ex)
{
_doc.Editor.WriteMessage(
"\nException: {0} - {1}", ex.Message, ex.InnerException
);
}
finally
{
draw.SubEntityTraits.Color = origCol;
}
}
return(true);
}
// If we're currently drawing...
if (_drawing)
{
Solid3d sol = null;
try
{
// If we have vertices that haven't yet been drawn...
if (_vertices.Count > 1 //&&
//_vertices.Count - 1 > _lastDrawnVertex
)
{
// ... generate a tube
if (GenerateTube(_profRad, _vertices, out sol))
{
// We now need to break the pipe...
// If it was created, add it to our list to draw
_created.Add(sol);
sol = null;
// Clear all but the last vertex to draw from
// next time
ClearAllButLast(_vertices, 1);
}
}
}
catch
{
// If the tube generation failed...
if (sol != null)
{
sol.Dispose();
}
// Loop, creating the most recent successful tube we can
bool succeeded = false;
int n = 1;
do
{
try
{
// Generate the previous, working tube using all
// but the last points (if it fails, one more is
// excluded per iteration, until we get a working
// tube)
GenerateTube(
_profRad, GetAllButLast(_vertices, n++), out sol
);
_created.Add(sol);
sol = null;
succeeded = true;
}
catch { }
}while (!succeeded && n < _vertices.Count);
if (succeeded)
{
ClearAllButLast(_vertices, n - 1);
if (_vertices.Count > 1)
{
try
{
// And generate a tube for the remaining vertices
GenerateTube(_profRad, _vertices, out sol);
}
catch
{
succeeded = false;
}
}
}
if (!succeeded && sol != null)
{
sol.Dispose();
sol = null;
}
}
// Draw our solid(s)
draw.SubEntityTraits.Color = ColorIndex;
foreach (DBObject obj in _created)
{
Entity ent = obj as Entity;
if (ent != null)
{
try
{
ent.WorldDraw(draw);
}
catch
{}
}
}
if (sol != null)
{
try
{
sol.WorldDraw(draw);
}
catch
{ }
}
if (_vertices.Count > 0)
{
Point3d lastPt = _vertices[_vertices.Count - 1];
// Create a cursor sphere
using (Solid3d cursor = new Solid3d())
{
try
{
cursor.CreateSphere(_profRad);
if (cursor != null)
{
cursor.TransformBy(
Matrix3d.Displacement(lastPt - Point3d.Origin)
);
// Draw the cursor
draw.SubEntityTraits.Color = ColorIndex;
cursor.WorldDraw(draw);
}
}
catch { }
}
}
if (sol != null)
{
sol.Dispose();
}
}
draw.SubEntityTraits.Color = origCol;
return(true);
}
public static void CreateSphere()
{
try
{
Document doc =
Application.DocumentManager.MdiActiveDocument;
Autodesk.AutoCAD.DatabaseServices.Database db = doc.Database;
Editor ed = doc.Editor;
Transaction tr =
doc.TransactionManager.StartTransaction();
using (tr)
{
BlockTable bt =
(BlockTable)tr.GetObject(
db.BlockTableId,
OpenMode.ForRead
);
BlockTableRecord btr =
(BlockTableRecord)tr.GetObject(
bt[BlockTableRecord.ModelSpace],
OpenMode.ForWrite
);
Solid3d sol = new Solid3d();
sol.CreateSphere(10.0);
const string matname =
"Sitework.Paving - Surfacing.Riverstone.Mortared";
DBDictionary matdict =
(DBDictionary)tr.GetObject(
db.MaterialDictionaryId,
OpenMode.ForRead
);
if (matdict.Contains(matname))
{
sol.Material = matname;
}
else
{
ed.WriteMessage(
"\nMaterial (" + matname + ") not found" +
" - sphere will be rendered without it.",
matname
);
}
btr.AppendEntity(sol);
tr.AddNewlyCreatedDBObject(sol, true);
tr.Commit();
}
}
catch (System.Exception ex)
{
PGA.MessengerManager.MessengerManager.AddLog(ex.Message);
}
using (var doc = Active.Document.LockDocument())
{
AcadUtilities.ZoomExtents();
}
}
public static Point3d DistFromPointToSolid(
ref Document doc, ref Solid3d solid, Point3d point, double start, double step, ref double off, bool line)
{
var rez = new Point3d();
using (var acTrans = doc.Database.TransactionManager.StartTransaction())
{
var acBlkTbl = (BlockTable)acTrans.GetObject(doc.Database.BlockTableId, OpenMode.ForWrite);
var acBlkTblRec = (BlockTableRecord)acTrans.GetObject(acBlkTbl[BlockTableRecord.ModelSpace], OpenMode.ForWrite);
var SOLID = (Solid3d)solid.Clone();
SOLID.SetDatabaseDefaults();
acBlkTblRec.AppendEntity(SOLID);
acTrans.AddNewlyCreatedDBObject(SOLID, true);
var startR = start <= 0 ? step : start;
var sphere = new Solid3d();
sphere.SetDatabaseDefaults();
sphere.CreateSphere(startR);
sphere.TransformBy(Matrix3d.Displacement(Point3d.Origin.GetVectorTo(point)));
sphere.SetDatabaseDefaults();
acBlkTblRec.AppendEntity(sphere);
acTrans.AddNewlyCreatedDBObject(sphere, true);
while (sphere.CheckInterference(solid) == false)
{
try
{
sphere.OffsetBody(step);
off += step;
}
catch
{
}
}
if (line)
{
var counter = 0;
sphere.BooleanOperation(BooleanOperationType.BoolIntersect, SOLID);
var dbo = new DBObjectCollection();
sphere.Explode(dbo);
var coll = new Point3dCollection();
var curvesColl = new DBObjectCollection();
var ent = dbo[0] as Entity;
if (ent.GetType().ToString().IndexOf("Surface") > 0)
{
var surf =
ent as Surface;
var ns = surf.ConvertToNurbSurface();
foreach (var nurb in ns)
{
double ustart = nurb.UKnots.StartParameter,
uend = nurb.UKnots.EndParameter,
uinc = (uend - ustart) / nurb.UKnots.Count,
vstart = nurb.VKnots.StartParameter,
vend = nurb.VKnots.EndParameter,
vinc = (vend - vstart) / nurb.VKnots.Count;
for (var u = ustart; u <= uend; u += uinc)
{
for (var v = vstart; v <= vend; v += vinc)
{
coll.Add(nurb.Evaluate(u, v));
counter++;
}
}
}
if (counter < 1)
{
var sub = new DBObjectCollection();
surf.Explode(sub);
foreach (Entity entt in sub)
{
acBlkTblRec.AppendEntity(entt);
acTrans.AddNewlyCreatedDBObject(entt, true);
curvesColl.Add(entt);
}
}
}
else
{
var surf = (Region)ent;
var p1 = surf.GeometricExtents.MaxPoint;
var p2 = surf.GeometricExtents.MinPoint;
var p = new Point3d((p1.X + p2.X) / 2.0, (p1.Y + p2.Y) / 2.0, (p1.Z + p2.Z) / 2.0);
coll.Add(p);
coll.Add(p);
var sub = new DBObjectCollection();
surf.Explode(sub);
foreach (Entity entt in sub)
{
acBlkTblRec.AppendEntity(entt);
acTrans.AddNewlyCreatedDBObject(entt, true);
curvesColl.Add(entt);
}
}
foreach (DBObject ob in curvesColl)
{
var curve = (Curve)acTrans.GetObject(ob.Id, OpenMode.ForRead);
var p1 = curve.StartPoint;
var p2 = curve.EndPoint;
var p = new Point3d((p1.X + p2.X) / 2.0, (p1.Y + p2.Y) / 2.0, (p1.Z + p2.Z) / 2.0);
coll.Add(p);
coll.Add(p1);
coll.Add(p2);
}
if (coll.Count > 0)
{
rez = coll[0];
foreach (Point3d p in coll)
{
if (p.DistanceTo(point) < rez.DistanceTo(point))
{
rez = p;
}
}
}
else
{
rez = point;
}
}
// acTrans.Commit();
}
return(rez);
}
protected override bool WorldDrawData(WorldDraw draw)
{
if (!base.WorldDrawData(draw))
{
return(false);
}
var ctm = TransientManager.CurrentTransientManager;
var ints = new IntegerCollection();
while (_lineSegs.Count > 0)
{
// Get the line segment and remove it from the list
var ls = _lineSegs[0];
_lineSegs.RemoveAt(0);
// Create an equivalent, red, database line
// (or yellow, if calibrating)
var ln = new Line(ls.StartPoint, ls.EndPoint);
ln.ColorIndex = 1;
_lines.Add(ln);
// Draw it as transient graphics
ctm.AddTransient(
ln, TransientDrawingMode.DirectShortTerm,
128, ints
);
}
if (_drawing)
{
if (_cursor == null)
{
if (_vertices.Count > 0)
{
// Clear our skeleton
ClearTransients();
_curPt = _vertices[_vertices.Count - 1];
// Make our sphere 10cm in diameter (5cm radius)
var sol = new Solid3d();
sol.CreateSphere(0.05);
_cursor = sol;
_cursor.TransformBy(
Matrix3d.Displacement(_curPt - Point3d.Origin)
);
_cursor.ColorIndex = 2;
ctm.AddTransient(
_cursor, TransientDrawingMode.DirectShortTerm,
128, ints
);
}
}
else
{
if (_vertices.Count > 0)
{
var newPt = _vertices[_vertices.Count - 1];
_cursor.TransformBy(
Matrix3d.Displacement(newPt - _curPt)
);
_curPt = newPt;
ctm.UpdateTransient(_cursor, ints);
}
}
}
else // !_drawing
{
if (_cursor != null)
{
ctm.EraseTransient(_cursor, ints);
_cursor.Dispose();
_cursor = null;
}
}
return(true);
}