Polysurface to surface grasshopper. However, for this particular task I need the geometry that is already baked in Rhino to be simplified from a polysurface to a surface. If the surface has a trim hole, the surface cannot be cast to a single curve, but multiple curves and it will fail. Aug 21, 2020 · It’s probably safer to use the original surface (if there is one), prior to it being trimmed (if it got trimmed lol), or the original mesh, to then try to do a simpler/clean network or edge surface that approximates your mesh properly. I’ve imported a closed polysurface model from Solidworks and extracted the required surfaces Mar 12, 2022 · Hello Laurent! Thank you for replying my doubt. go to Surface > Surface Edit > Divide Surface on Creases Append a set of polysurfaces (Breps) which are disjoint to become a single polysurface (Brep) even though they are not touching or joined. Any recommendations. Is there a way to create a curve from a surface in grasshopper? I want to loft some surfaces but do not have any curves. Jun 5, 2015 · "Kinda" like the way that Lunchbox does business with surface divisions. GH components will only give me all the edge curves of every surface. I would need to see the surfaces in question to know if this would help but you may try Untrim on the trimmed edges and then be able to MatchSrf and finally MergeSrf to get to a single srf. but is there any way to convert polysurface to a single surface in rhino. Dec 24, 2013 · Hi Shir, MergeSrf only works with untrimmed surface pairs, if they are trimmed edges it won’t work. set parameter as brep or u can explode your poly into surfaces. merge_surfaces. What I've done is to intersect every geometry (meaning mountain) to the rest of the mountains. 3. Plug everything into Surface Morph (right click input S -> reparametrize so you can use "0 to 1" as UVW) Nov 21, 2018 · A surface is, well, a surface. Jul 2, 2023 · Turning the mesh into a polysurface (or, as it is called in Grasshopper, a Brep) is not an option: the sheer number of mesh faces would lead to a huge, slow file. Is it possible to create a middle line from a certain surface? In the photo, it is explained more understandable. rebuild the surface to be U = 1 degree, V= 3 degree 3. gh (18. I’ve tried referencing it as a brep but the script components don Oct 20, 2009 · When adding a Polysurface (Brep) to grasshopper (object properties says its a closed solid object), i can't perform any boolean operations on it. I´m a beginner in rhino and grasshopper. Jun 11, 2014 · Actually, the loft between two surfaces works because a surface > curve cast will return the singular curve. I want to create a rectangle surface with the dimensions of the polysurface but whatever I have done dimensions component extracts the dimensions of each of the 3 surfaces and not the dimensions of the whole polysurface. Reference your polysurface. The goal is to deform the surface parametrically to create textures on a product and reimport back into Solidworks as a NURBS surface. DuplicateSurfaceBorder Loop on I think you'll have to create your surface in a different way to get one surface instead of a polysurface. Apr 30, 2018 · Only surfaces that share at least part of one edge can be joined into a polysurface. It consists of a single smooth area but may have custom edges. May 26, 2018 · Hi, I’m trying to use a script that reads a surface and projects a triangular grid onto it, however the surface that Im using wont be read by grasshopper, I’ve booleaned them together and joined them and rhino reads it as a singular surface but grasshopper simply doesn’t? and refuses to allow me to put it in the script. Nov 13, 2010 · Hi guys,I've got a surface in GH and I'd like to extract its curves. I appreciated any help! Thanks, Carl Jan 17, 2014 · Hi Dani, the topology of the result precludes it being made from a single Nurbs surface. Please upload the actual data. Oct 17, 2013 · Polysurface to surface. Nov 6, 2019 · the brep I am working with was originally a mesh which has been converted into a polysurface, and now I need this surface to be a single surface. It depends of the use-case. so that we can select the surface and apply some pattern over it. Name ID Description Type; Mesh: M: Mesh to convert into polysurface: Mesh: Triangles: T: If true, triangle faces will be converted into trimmed triangle surfaces If false, triangle faces will be converted into untrimmed surfaces where the first and fourth corner points overlap Apr 4, 2020 · Hi Guys, Struggling with what is probably quite a simple issue. Find the height of a Brep in Grass Aug 21, 2016 · Hi guys, I get some doubts in relation with offset a polysurface in Rhino, i´m wondering how can we obtain a an clean offset performed on a polysurface, with the same result as if we use WB thickness based on distance diagonals, becouse due to the complexity of the shape the offset on a polysurface always seems collapse mainly if we work with sharp angles, and i already try many ways, however Jan 25, 2015 · It's difficult to say exactly what the best approach would be, as you only posted images of your data rather than the actual data. I created a subD surface in Rhino, then converted back to a nurbs surface - which rhino 7 WIP recognizes as a polysurface (and Rhino 6) but the grasshopper will not recognise it as a surface, or a mesh, only a Geometry. A polyline, or a polycurve (a curve with non-continuous segments) would always generate a Brep/polysurface on extrusion, not a surface. May 19, 2010 · I'm lofting one degree curves to make a surface with sharp edges but the result I get is a polysurface. 5 KB) Thank you Nov 28, 2020 · Rhino Grasshopper Unroll Polysurface Plugins used pufferfish , lunchbox & TT Toolbox Dec 22, 2021 · When you extent such surface, your chances are almost 100 % to produce garbage. Instead, we’ll use a method that approximates the mesh shape while allowing us to define the accuracy of the surface. . any one can… May 29, 2024 · Im new to Grasshopper/Rhino 8, so please be light on me. Perhaps the connecting surface can be made using a more exact method, but that is just conjecture at this stage. Reference your pattern (curves or anything) 2. So either you deal with them as multiple surfaces for each curve as Taz suggested, or you make your curves in a way so that there are no tangential discontinuities. I wanted to create a simple structure with openings using the Voronoi tool. For example I have one polysurface which consists of 3 surfaces. Posted by David heaton on October 17, 2013 at 7:23am in Discussion; Hi Santiago, Thanks for the help! I just had a chance to look at the video. I would really appreciate if you could show me the code for this actions you are writting to me. Sep 5, 2012 · Try this (Surface Morph): 1. If a surface is just a (deformed) rectangle and it has no custom edges, it is called an ‘untrimmed’ surface. This is my results without grasshopper, but I want to try with it. Categories Addons Components Request an Addon Donate Jan 27, 2022 · Space Planning and Massing using Rhino Polysurfaces and Grasshopper to read the Area and Tag the Polysurfaces with 3D Tags. and then extract whatever attributes u want for those surface. Both these methods are tried and tested, providing you with the flexibility to choose the one that best suits your specific needs. algorithmic modeling for Rhino. Jul 14, 2012 · It's possible that your open BRep loft output is a polysurface (if your lofted curves are 1 or 2 degrees, if you used straight or developable loft options, etc. Hi - the brep in that gh file cannot be represented by a single NURBS surface. I am taking a list of all surfaces in the project (or a selection thereof), and for each surface I want to access the geometry of the border curve (ie all edit points of all edges around that border). I see many people in videos do it and all of my colleagues can do the exact same thing but for some weird reason I can’t. senakurkcuoglu (Senakurkcuoglu) April 30, 2018, 6:43pm 3 Mar 27, 2014 · Oh, actually, try [solid union] instead, because your breps are overlapping. 1 KB) In this grasshopper Voronoi tutorial, I will talk about the populate geometry tool and how you can use it to produce a set of Voronoi cells on a freeform sur Aug 6, 2019 · Hello dear Grasshopper community, I’m new to using Grasshopper. That gives me the geometries in the layer Output_01. Is there a way to test whether it is one or the other then dispatches it based on what it is? For example, the logic I'm working towards is this: If polysurface: do transformation A. 5 KB) Thank you Jul 16, 2015 · If you merely translate a copy of the polysurface straight up, you get zero width for the near vertical side surfaces, yet if you extrude each surface in the direction of its normal, you get little overlap at the joints between orthogonal surfaces. I want to apply a polysurface on a surface. Can you help me with right command on grasshop… Indicies of closed polysurface faces to remove for shelling, atleast one face must be removed: Integer: Thickness: T: Thickness of the shell: Number: Face Merge: F: Merge coplanar polysurface faces into single surfaces WARNING: this option may be heavy depending on the amount of coplanar faces, please be sure to save before use: Boolean May 6, 2015 · hi, you can use grasshopper to basically merge the data for those polysurfaces. A NURBS surface has the same topology as a sheet of paper. RSS. explode the surface you should be left with individual patches for each "face" a second test is to 1. View. Would appreciate any help. Everything has worked so far but I couldn´t figure out how to add the created Geometry (Facade with Voronoi openings) onto the Surface of the extruded Geometry (using the Surface Morph tool). I’m working on my PC right now and It doesnt even work on my Aug 6, 2014 · I thought I could bake the surface and then reference the baked surface back into the definition independantly. Does anyone knows how to convert a polysurface into a surface? or is there any other way to get a Nov 15, 2020 · Hello, I have been trying to make one single surface from this polysurface. Apr 6, 2024 · Hi, I have a poly-surface object and I want it to be converted to one single surface. Thanks Oct 17, 2013 · Grasshopper. Any guidance? Thanks, taz Oct 24, 2010 · As I am new to grasshopper,are you able to post the definition to divide a polysurface into the uv grid? Thankyou Permalink Reply by Adam Fenton on September 25, 2011 at 6:01am Components for Tweens, Blends, Morphs, Averages, Interpolations, & Transformations - essentially Shape Changing. Oct 13, 2009 · I'd like to (as the Rhino command dupBorder does) extract the border of a polysurface (the naked edges). Posted by David heaton on October 17, 2013 at 7:23am in Discussion; View Discussions; Hey guys, 08 Grasshopper Tips, Tricks, and Techniques Mar 24, 2021 · Hi folks, I’m new on grasshopper and I need a help. Jul 3, 2023 · In this guide, we’ll be diving deep into two distinct methods for transforming a mesh to a polysurface in Grasshopper. And you can even join the separate surfaces with the BRep Join component before passing it into the Project Component. Greatings Alex May 31, 2018 · in this video you can see how we can make a scanned file and actually every kind of mesh to one surface. using PointsOn) but haven't had any success in Rhino or Grasshopper. Then you can [merge faces] to have a clean planar surface. Apr 30, 2018 · Hi all, I have a RhinoScript that operates directly from Rhino itself. ejercicio-cascara. Sep 12, 2022 · Hi all, I’m struggling with converting an open-polysurface to a NURBS-based surface using Grasshopper. You're going to have to figure out how to deal with either multiple surfaces or you'll have to define a single coordinate space that can handle tears and cuts. For this, I want a uniform grid wrapped across the surface. Nov 28, 2015 · For instance get this "longitudinal" combo: and do that "transverse" combo (or not: meaning one surface [if possible]). I am guessing that this is p May 17, 2022 · Hello Guys, I have a problem with setting Surfaces in Grasshopper and Rhino. go to Surface > Surface Edit > Divide Surface on Creases 4. Best workaround for you at your present state of experience: try NOT to arrive into the death trap (the polysurface, that is) or erhmm use meshes (the worst solution imaginable). A brep is one or more surfaces joined together. My approach looked like this: Loop through all Surface objects Get the border through Rhino. If single surface: do transformation B. ) in which case you would want to place a BRep Components (Explode) component between your Loft and SDivide components to break the polysurface down into its component surfaces (they Apr 16, 2016 · Hey guys! I'm working on this project and need to assign some gird structure by lunchbox plugin on selected surface, but paneling component of plugin cant accept it as a unit surface and I cant merge the Breps together as an output! Jan 21, 2014 · So I have some geometry, and sometimes it is a polysurface and other times it is a single surface. I tried making it with sweep 1 and 2, contour, surface network, and nothing its very accurate. Here is the file. Jun 25, 2019 · In order to use this polysurface for further algorithmic compilation, I have to figure out how to transform it into a regular surface. Best Felix Apr 20, 2011 · You can use any of the following Geometry Params: multiple surfaces in Surface or a polysurface in BRep or Geometry. Profile curve or surface to extrude, works best if profile is planar: Curve: Direction: D: Extrusion direction vector, works best if direction is perpendicular to profile: Vector: Angle: A: Taper draft angle in degrees: Number: Corner Type: T: Determines how the corners are made on outward tapering extrusions 0 = Sharp 1 = Smooth 2 = Round 3 May 16, 2017 · Hi there , do you guys know how to apply a Voronoi on a polysurface ?. Home. Is there a command for this? In Rhino, there's the 'select crv' and 'extract wireframe' op… Apr 24, 2018 · Hello! I would like to ask you if it is possible to merge 3 surfaces in 1. Please consider disabling your ad-blocker to support this website! 🔑 We are a free, community-supported website! 🥰 We only display small unobtrusive ads which help us stay online! 💯 May 3, 2010 · 3. I have attached a section of what I'm trying to achieve, as well as the form I'm working with. May 19, 2010 · If you just want to populate the polysurface with components that are oriented according to the curvature of the surface you can contour your polysurface and use the generated points to map components to. It is not possible to make your object from one sheet of paper Aug 6, 2010 · hi, I'm wondering how the easiest way to split a referenced polysurface? The goal of the definition is to split the referenced geometry (a polysurface), and lay out both curves and geometry for each layer, for milling purposes. This conversion aims to allow me to use the “morph surface” GH component to align a pattern onto this NURB surface. I have code that does this (meshes and/or surfaces) but it's rather a complex C# script that I suspect you couldn't handle it (unless you speak C#). gh (25. Draw a box on top of the pattern. What I would do here (and sorry for not deep-diving into this problem), I would create a fan shaped surface around it, fitting it and then simply trim. This frustrating and I am going round in circles. Peace, J Apr 6, 2020 · This maybe a very basic query – how to flip a polysurface in grasshopper? I know there is a button to flip a single surface but how can we flip a polysurface? Apr 24, 2018 · Hello! I would like to ask you if it is possible to merge 3 surfaces in 1. I can't use that directly as a surface to populate, as my definition is using a surfaceBox component which requires a surface as input. Pufferfish mainly uses parameters and factors for inputs for more custom control over operations like tweens and grids as opposed to grasshoppers usual division count inputs. Such a surface will produce always problems if you want to work further with it. loft a surface ( or make any curved surface anyway you like) 2. Download Polysurface to surface. Posted by David heaton on October 17, 2013 at 7:23am in Discussion; Name ID Description Type; Surface: S: Surface (or polysurface (Brep)) to offset: Brep: Distance: D: Offset distance: Number: Both Sides: B: Optional offset distance to offset both sides, use the inverse number of the distance to offset in the opposite direction (so if distance is a positive number then use a negative number and vice versa) May 22, 2016 · I have a closed polysurface that I'm trying replicate and then merge into one smooth (freeform?) surface so I can manually modify it (eg. Has "some" bugs (actually a lot) but does some work as well. Aug 18, 2017 · I wanted to know if there is a way to get the geometries I have in Rhino in the Outup layer, in grasshopper. Unfortunately, I couldn’t figure out an approprate way on how to reverse engineer it. So this is where I am confused, even when the surface is baked and then referenced in a new surface placeholder, if that surface is reparameterised, the surface within kangaroo is scaled to one unit (effectively vanishing). Jan 7, 2010 · Many times when using Rhino/Grasshopper, I end up deleting curves by accident or through one way or another, and so am left with surfaces that have no curve. Oct 17, 2013 · Grasshopper. Can also append surfaces. 4. This is very useful to know. Whenever I have a surface in Grasshopper and right-click “Set one Surface”, it won’t let me select my surfaces in Rhino. Thus: because of casting magic it works - not because you can actually create a loft between two surfaces. I found a video on how to do it on surface, but my object is a poly surface, it is a arm 3d model and I want to make a hand cast with voronoi patern , but can’t figure it out how on polysurface…and to make that hand cast as a surface it’s giving me a headache. Maybe you can create a series of cross sections scaled to different sizes at different heights, then use 'Loft' or 'Sweep' to get the single surface result. that is normally what I do if I have to panel out a polysurface. Here is the movie about voronoi on surface : voronoi on Optional points to unroll with the polysurface (Brep) or surface, points should lay exactly on the polysurface (Brep) faces or surface: Point: Curves: C: Optional curves to unroll with the polysurface (Brep) or surface, curves should lay exactly on the polysurface (Brep) faces or surface: Curve: Explode: E Jul 1, 2016 · guys this thing has been discussed earlier on the form. BTW: try MeshLab (free) as well for your mesh adventures. Surfaces with custom edges or holes punched into it is called a ‘trimmed’ surface. obfokaksndfmstfozobdsfofzbexohoupxfihcfsomregrhrmqf