algorithmic modeling for Rhino

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Topic: Python - Optimisation for efficiency: ing efficiency of the script. The basic version relies on the tutorial Nature of Code translated into Python https://www.youtube.com/watch?v=hKHrXuSV7rE&index=13&list=PL5Up_u-XkWgPgebtPEAfck3UEPZPHBB1D As objects are stored in the list which relies on 3 stage for loop it takes quite a while to compute more members (I am interested in up to 200). Moreover if I add external attraction to points, some separation it is even worse to that extend that estimation of computation is up to 5 minutes on my laptop with 20 members. Please see the attached file of the basic version. It represents a specific logic that is the bases for the next steps. How to decrease necessary time to compute? Best, Radek…; Added by Radoslaw at 9:58am on March 17, 2015

Topic: List counter failure: ist<Matrix> assemble(List<Polyline> mem, List<Point3d> jt, Matrix sp, Matrix lc) { List<Matrix> data = new List<Matrix>(); Matrix members = new Matrix(mem.Count, 8); Matrix fixd = new Matrix(jt.Count,1); Matrix free = new Matrix(jt.Count, 1); for (int i = 0; i <= mem.Count; i++) { members[i, 0] = i + 1; members[i, 1] = mem[i].X[0]; members[i, 2] = mem[i].Y[0]; members[i, 3] = mem[i].Z[0]; members[i, 4] = mem[i].X[1]; members[i, 5] = mem[i].X[1]; members[i, 6] = mem[i].X[1]; members[i, 7] = mem[i].Length; } data.Add(members); return data; Thanks…; Added by Roey Yaniv at 12:46pm on April 18, 2015

Topic: Group same numbers per branch: would like to group them by in branches so that the same numbers are in a branch together like this: {0} 1.5247641.5247641.524764 {1}4.5742914.5742914.574291 {2}7.6238197.6238197.623819 {3}10.67334610.67334610.673346 {4}13.72287413.722874 {5}16.77240116.772401 {6}19.821929 {7}22.871456 {8} 25.920984 {9}28.970511 I have a parallel list of breps that I would like to group in the same way. Anybody have an idea of how to do this?…; Added by Damon at 8:16am on April 23, 2015

Topic: Sorting / Selecting points on a diagrid: red / cascading selection sets from the point list of the diagrid manually, but have been unable to create the pattern to simplify the list. Right now I have separate components for each of the lath centerlines. I have been able to copy and rotate half of the lines. Is there a simpler way of performing this set of actions? The second part of the problem has been in using the resulting polylines to sweep a closed curve along for the laths. Thus far I have used the [1] offset on a surface component, [2] flipping the copied curves, and then [3] creating a surface only to [4]extract the resulting Brep edges to make a set of [5] ruled surfaces... Again, here there must be a simpler way of doing this. I would be grateful for any feedback on this dilemma. Thanks!…; Added by Gregory D Thomson at 2:33pm on June 3, 2015

Topic: Iterating through list in a branch: nts. I want to shift the points per branch. The amount of places the points should be shifted is linked to the branch they are on. So the 0'th branch shouldn't shift, the 1'th branch should shift one, the 2'nd branch should shift two, etc.. I solved my problem by using three GH components. But I would like to combine these in one python component. The script I expected to do the job is attached. But the outcome of the script has only the last of the branches that is shifted. Is this because with .branch(i) you only can call one branch? Any thoughts on how i can iterate through these branches? …; Added by Steven Thuis at 1:24am on June 16, 2015

Topic: How to distribute more than one geometry across a series of points.: B of the image. At the moment i only have a box assigned to the points, but would like to distribute say 2-5 of my own geometry components to the points randomly or with some kind of logic. Then maybe looking at applying some random rotation to particular components. I think this would require creating a list of the 5 pieces of geometry and then going from there, but I have had no luck so far. I have attached the working grasshopper file that just assigns boxes to the points generated from the image sampler. Any help would be much appreciated. …; Added by Ben at 5:55am on August 29, 2015

Topic: Peak annual values: annual data into grasshopper. I think the grasshopper (1 core mode) way of reading these annual results is a bottleneck here. I was wondering if its possible through python or an external part of honeybee to make some statistics on the annual datas. Such as: - Num of hours above a certain value (returns one value per point) - Max value (returns one value per point) - Date of the max value (returns one value per point) - 75% percentile of max value (returns one value per point) As it is now, people use the accomulated annual data to get an idea of energy usage, but I think we need to include these peak values to get an idea on if our ventilation/cooling system is good enough. I know Energyplus can do this simulation, but looking at pure solar gains is good for early phase and facade designs. Best, Mathias.…; Added by Mathias s n to Ladybug Tools at 7:33am on September 4, 2015

Topic: Got float? Runtime error in new Python editor but not in old one: RotateObject(ln, rs.CurveEndPoint(ln), degrees * i, (0,0,1), True) a.append(nl) And this is the error that I get in the new editor: Runtime error (TypeErrorException): range() integer end argument expected, got float. Traceback: line 5, in script I hope you can help, Many thanks, Arthur …; Added by Arthur Mamou-Mani at 1:48am on September 17, 2015

Topic: Insert tabs to strings: ata to excel. What is the most effective way to do so?] TNX! my function: Format("sky, {0} ,ground, {1} ,sidewalks, {2} ,trees, {3} ,offices, {4} ,commerce, {5} ,buildings, {6}",sky,Ground,Sidewalks,Trees,Offices,commerce,buildings) i tried to use the VBscript from this discussion, but it didnt went well: http://www.grasshopper3d.com/forum/topics/how-to-add-enter-in-a-text-grasshopper-to-processing …; Added by E B at 3:28pm on January 18, 2016

Topic: Lunchbox Object Save completely freezes Grasshopper UI: obj file it completely freezes the Grasshopper UI. I have tried the attached file on 2 different computers with the same result. Does anyone know how I can get in touch with the makers of lunchbox, I have written a direct email and never got a reply!? In the attached file make sure to have a valid path to an existing folder (eg. your desktop folder) or it wont save. Only unloading and loading grasshopper solves this. Zooming in and out of the Grasshopper UI with the mouse wheel still works, but all other clicks dont. Please help! I am using the latest GH and Rhino 5 SR11 on Windows 7 64bit. …; Added by Armin Seltz to LunchBox at 3:33am on January 20, 2016