Hey All,
I am developing a tool that will allow a user to select a curve, and dump out the points at given intervals along said curve.
This works well for 2D objects.
If I have a line from 0,0,0 to 10,0,1
it outpus
0, 0, 0
0.9950, 0, 0.0995
1.9901, 0, 0.1990
What I want it to output is the point at the interval (2D plane, with the elevation)
0, 0, 0
1, 0, 0.1
2, 0, 0.2
etc
Is there a way a function I can use that would allow this, or do I need to write my own function?
I hope that made sense.
Cheers
Brent
BrentBurgess1980 wrote:
Is there a way a function I can use that would allow this, or do I need to write my own function?
You have to write own function.
Відповідь корисна? Клікніть на "ВПОДОБАЙКУ" цім повідомленням! | Do you find the posts helpful? "LIKE" these posts!
Находите сообщения полезными? Поставьте "НРАВИТСЯ" этим сообщениям!
На ваше запитання відповіли? Натисніть кнопку "ПРИЙНЯТИ РІШЕННЯ" | Have your question been answered successfully? Click "ACCEPT SOLUTION" button.
На ваш вопрос успешно ответили? Нажмите кнопку "УТВЕРДИТЬ РЕШЕНИЕ"
Alexander Rivilis / Александр Ривилис / Олександр Рівіліс
Programmer & Teacher & Helper / Программист - Учитель - Помощник / Програміст - вчитель - помічник
Facebook | Twitter | LinkedIn
Hi Brent
You can use virtual plane to get the points, see quick example,
Im using existing line for test but you can create LineSegment3d
or CircularArc3d for your polyline segments instead, but way would be the same:
[CommandMethod("ldiv")] public void testLineDivisions() { Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument; Database db = doc.Database; Editor ed = doc.Editor; PromptEntityOptions peo = new PromptEntityOptions("\nSelect a Line: "); peo.SetRejectMessage("Only a Line !"); peo.AddAllowedClass(typeof(Line), false); PromptEntityResult per = ed.GetEntity(peo); if (per.Status != PromptStatus.OK) return; ObjectId lid = per.ObjectId; PromptDoubleOptions pdo = new PromptDoubleOptions("\nEnter step: "); pdo.AllowNone = true; pdo.UseDefaultValue = true; pdo.DefaultValue = 1.0; PromptDoubleResult res; res = ed.GetDouble(pdo); if (res.Status != PromptStatus.OK) return; double step = res.Value; ed.WriteMessage("\nStep entered:\t{0}\n", step); Point3d pt; Point3d tmp; using (Transaction tr = db.TransactionManager.StartOpenCloseTransaction()) { Entity ent = tr.GetObject(lid, OpenMode.ForWrite) as Entity; if (ent == null) return; Line ln = ent as Line; if (ln == null) return; Line3d lc = new Line3d(new Point3d(0, 0, 0), new Point3d(10, 0, 1));// current line Line3d lx = new Line3d(new Point3d(0, 0, 0), new Point3d(10, 0, 0));// line along x axis Plane plan = new Plane(); int i = 0; for (double d = 0.1; d < 1.0; d += 0.1) { pt = lx.EvaluatePoint(d); plan = new Plane(pt, Vector3d.XAxis); tmp = plan.IntersectWith(lc)[0];// get intersection point between the line and virtual plane ed.WriteMessage("\nPoint Number: {0}\tPoint: {1:f3}\n", i + 1, tmp); i++; } lc.Dispose(); lx.Dispose(); } }