, and made the below definition to try it out. (lots of components to draw a line, but I'm just trying to understand the equation)
I had been searching for advice on some geometry topics worth exploring for a class, and now I'm in the class and the teacher wants me to start by learning about splines in general (not nurbs). I just spent the day learning linear spline interpolation, then quadratic, then cubic. I didn't try working them by hand yet, but I'm getting the concepts. It seems cubic is the lowest degree where you can get C2 continuity, which makes it smooth. I read over parameterization and how that simplifies the number of equations. I read about space curves, and then the differences between Hermite, Catmull-Rom, and Cardinal spline, but then got tired and had a cocktail.
So I guess I'm looking for any direction or advice on how to understand parametric curves in 3d space, and how they can be defined (splines or otherwise). Thanks!!!
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nts but as there are polylines and surfaces in it, they are conflicting as the geometries are overlapping and intersecting.
The input for the model is a centre point and four connecting points: we can call them CNT, A, B, C and D. The model works for these points - it's quite complicated with lots of polylines, vector geometry, surfaces, rotations, etc. - but it still works and has an output of two breps.
If I had a compilation of N sets of CNT, A, B, C and D's, is there a way of feeding each of these into the grasshopper in individual sets rather than just plugging in the huge set of numbers - e.g. feeding in CNT1, A1, B1, C1 and D1 and getting a result before moving on to CNT2, A2, B2, C2 and D2?
I've tried looking through tree structures, but it seems to be failing when the size of the set isn't known - e.g. how to extract all the information from trees when N isn't know using list item (i=0, i=1, i=2..., i=N).
I hope I've managed to explain the problem adequately, I can make up an easier to understand Grasshopper model later if I haven't explained well...
Thanks in advance for any comments, pointers, etc.…
hopper no requiere de conocimientos de programación o scripting para permitir al diseñador trabajar de forma generativa y paramétrica. No son necesarios conocimientos previos de Grasshopper pero sí de Rhino a nivel básico.
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En este curso introductorio el alumno se familiarizará con términos básicos de la estructura de Grasshopper, como “listas de datos”, “dominios”, “estructuras en árbol”, etc.
Es un curso de 18 horas, con el que se pretende entrar en la lógica de trabajo de Grasshopper mediante diversos ejercicios, de forma que el alumno sea capaz posteriormente de desarrollar sus propias gramáticas, con la confianza que da comprender los términos básicos de programación sobre los que se apoya todo el sistema de trabajo de Grasshopper.Para este curso no son necesarios conocimientos previos de Grasshopper, pero sí de Rhino (a nivel básico).
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ve' ist nicht möglich. (line 85)
Unfortunately I don't know how to have it displayed in English but it is saying that it can't convert 'Rhino.Geometry.Curve[]' to 'Rhino.Geometry.Curve'. This is my code:
Point3d pt1 = new Point3d(0, 0, 0); Point3d pt2 = new Point3d(1, 0, 0); Point3d pt3 = new Point3d(1, 1, 0); Line line1 = new Line(pt1, pt2); Line line2 = new Line(pt2, pt3); Curve crv1 = line1.ToNurbsCurve(); Curve crv2 = line2.ToNurbsCurve(); List <Curve> crvlist = new List<Curve>(); crvlist.Add(crv1); crvlist.Add(crv2); Curve joined = Curve.JoinCurves(crvlist); A = joined;
What needs to change? Also, do I really need to convert things like lines etc. to NurbsCurves each time I do this, or is there a more direct way? I am quite new to C# and would be thankful for any tips on how to make the above code shorter and more efficient.
Cheers,
Max…
Added by Max Marschall at 7:58am on November 13, 2016