Extract Curve From Surface Rhino. This lesson will take a look at some of the more common ones availab

This lesson will take a look at some of the more common ones available to us. For more information, see the Rhino help file for information on the DupEdge command. I’ve included all the necessary geometry I think in the gh file below. -Daniel Dec 5, 2018 · This guide demonstrates how to convert text to curves using RhinoScript. 0079. Options Text to create Types the text. (Help menu > Learn Rhino > Tutorials and Samples > User's Guide > Extrude) On the Surface menu, click Extrude Curve, and then click Straight. Curvature Curve analysis tools let you turn on a graph showing the direction perpendicular to the curve at a point and the amount of curvature, display a curvature circle, test the continuity between two curves and the intervals of overlap between the two curves. It seems Rhino doesn’t have a way to do this. Create curves through an edge midpoint and the two corresponding corners. ExtractSubCurve is kind of what I’m looking for but it is cumbersome to have to click on every little piece of subcurve individually. Curves Creates text using Dec 23, 2019 · Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Name Font name Bold Sets the font to bold. 69K subscribers Subscribe In this video, we're going to talk about several ways to create surfaces using edges and curves in Rhino. 9K subscribers Subscribed The EdgeSrf command creates a surface from two, three, or four selected curves. . Or is there a way to do a parallel curve from an edge of the solid? like from a cube? it doesnt make that much sense for a cube but only for visualising my problem/question I’m thankful for any help 🙂 May 23, 2017 · Hello all, First of all thanks for your help and time. Open a hole or to separate a badly constructed surface from a polysurface in order to repair it. com Extract Curves for Laser Cutting Flat cut processes such as laser cutting require you to extract parallel cuts through your model, label them, and lay them on a flat sheet. Fillet Add an arc between two curves and trims or extends the curves to the arc. Nov 11, 2020 · You can use isoparametric curves to recreate an existing surface with different parameterization. The one on the left is what I want to achieve on the other drawing. This video discuss 3 different ways to extract curves from a surface in Rhino 5 👉 Watch All FREE Video for Jewelry Design https://goo. Jan 28, 2025 · Now, the aim here is to extract the bounding curve from the surface and edit the points to create a new surface and then a new polysurface. Start by drawing a profile out of curves, then make sure all the curves are joined. For example on a surface that is divided in the UV by 6 by 6, I… Duplicates the edge curves of a surface or polysurface. Many thanks! Oct 20, 2015 · Hello everyone, I’m looking to remove these meshes, lines, created by default by rhino when making a surface. Extract object sub-elements The commands that extract parts of objects can be used to Create curves based on the geometry of the object. I have built a surface from several curves by lofting. So, I’d extrude everything with solid=yes. Nov 11, 2020 · To remove a surface from the selection, press Ctrl while clicking. 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. Create a vector for each edge midpoint to the surface center. GetObject ("Select surface for isocurve extraction", rhObjectSurface) arrPoint = Rhino. com Jun 1, 2017 · Hi All, Is there a way to pull a trimmed surface edge to a curve… . Jan 25, 2021 · Hello I have a surface with holes. The best way to create contours for architecture site documentation in 2D. Discover tips to speed up creating and trimming curves with these powerful tools. How’s that possible in Rhino ? I searched for this topic elsewhere and yet couldn’t find any answer that’s satisfactory. Pick a location. com/howtorhinoHow to Extract Wireframe in RhinoRhino tutorials for architectshttps://howtorhino. Steps: Select objects. A plus sign appears at the cursor when Copy=Yes. NET plug-ins for Rhino and Grasshopper. Nov 10, 2023 · It’s hard to tell without a Rhino file, but my first thought is that you have a combination of closed curves and open curves, and you really only want to make something from the closed curves. GetBoundingBox (true): List FindIntersectingCurves (List curves, Surface surface) { List<Curve> result = new List<Curve>(); The ExtractWireframe command creates curves that duplicate surface, polysurface isoparametric curves, and mesh edges displayed in the wireframe view. However, even so, the one edge I am still needing doesn’t get produced and I don’t understand To do this, extract several isoparametric curves, and Loft a surface through them. Quick instructions on how to extract points from a curve so that you can export them to a points list file. Click left-mouse button to select a mesh, then click right-mouse button. This will make a copy without moving it. ? My work around is to convert the surface to a mesh then a tspline then pull t spline edge to curve then convert tspline to rhino srf… but that is a loong work flow… Any other ideas would help greatly! thanks, Jul 29, 2025 · Explore how Rhino 9’s new features like Instant Aliases and the Fence trim option streamline curve editing, improving workflows started in Rhino 8. Dec 4, 2025 · The ExtractPipedCurve command copies the internal mesh created with Curve Piping object properties to create a separate mesh object. I was not able to upload the Grasshopper file, it’s only 67KB, here is a link to it. Here is a quick picture to let you understand. I noticed that you posted a Rhino 5 file - you could try to play a bit with the angles in the ExtractMeshFacesByDraftAngle command. i know this could be solved with making such curves before making surfaces, but if it's possible, it should be useful. But I don’t see anything for intelligently getting an inbetween loop out. The ExtractSrf command separates or duplicates polysurface, Extrusion, or SubD faces. 3D ---Curves from Meshescadxneter@hotmail. All Grasshopper scripting components can access RhinoCommon including all geometry objects and functions. Duplicate surface edges DupBorder Create a curve or polyline that copies a surface, polysurface, or mesh border. At the Select curves to extrude prompt, select the curve (1) as shown in the illustration below. Dec 9, 2020 · In Rhino 7, you can use the DraftAngleAnalysis tool to extract that curve. Extract Wireframe Extract Isocurve Curve on Surfaec Project Curve Rhino 3D Lab 336 subscribers Subscribe Subscribed TextObject Creates text-shaped curves, surfaces, or polysurfaces based on TrueType fonts. Apr 21, 2020 · Basically since I offset curves on my facade pattern, some shapes went outside of the brep so I just want to trim the extra off. Closed surfaces always have the surface normals pointing to the exterior. Dec 22, 2009 · How can we extract an edge curve from a surface ? it's sometimes necessary to make shells from complex surfaces to compensate offset commands. A common way of working in 3-D is to draw curves that represent edges, profiles, cross-sections, or other surface features and then to use surfacing commands to create surfaces from those curves. The Pull command moves curves and points toward the normal direction of a surface, mesh, or SubD to find intersections. Remove mesh faces in order to repair problems with a mesh. Italic Sets the font to italic. Nov 11, 2020 · The ExtractPipedCurve command copies the internal mesh created with Curve Piping object properties to create a separate mesh object. Furniture Design in Rhino 3D - Surface from Network of Curves Telegram Channel: https://t. 3D ---Extract Surfacecadxneter@hotmail. Quickly Outlining Objects in Rhino with Curve Boolean AALD at UofT 2. The following picture shows a mesh with two Mar 20, 2014 · Learning Rhinoceros. I was having problems getting one edge so for the command I opted for ALL Directions and Extract All options of the command, thinking I will just delete the curves I don’t want afterwards. The RememberCopyOptions command determines whether the selected option is used as the default. 2. But still checking. e. Nov 22, 2021 · Hi, I would like to know if there is a command in Rhino 7 to extract the boundary of a 2D object? (made from a 3D model - Make2D) For example, I would like to get the boundary of this profile view of a Engine: Thanks for any suggestions in advance. Apr 15, 2024 · It is used by Rhino plug-in developers to write . Use EdgeSrf to create a surface using the four segments. Feb 23, 2021 · Hi guys, Is there a faster way to get the outline from multiple curves? I usually split each individual curve then join each one to get the outline but this gets really time consuming. Rhinoceros 3D: Demonstrates how to extract isoparametric curves from surfaces. Using these controllable splines one can easily build NURBS objects (NURBS stands for Non Uniform Rational B-Splines: Those objects that usually called free-forms by Architects!). Jun 3, 2010 · I'm trying to extract the edge curve of a surface that consists of joined surfaces. FitCurveToSurface Projects or pulls a curve onto a surface and transfers the knot parameterization in the U or V direction to the new curve. More info 👇ht Jul 19, 2020 · Hi all, i’m trying to learn GH and was wondering if someone could explain the concept of how to extract certain points to draw curves through them, or do other operations. DupBorder Creates a curve that duplicates a surface, polysurface, or mesh border. Is it possible to do it directly on a subD surface ? Nov 27, 2024 · There are special curve editing tools available in Rhino that help designers to easily manipulate curves, specially various kinds of splines. Nov 11, 2020 · To remove a curve from the selection Press Ctrl while clicking. In the attached Rhino file and GH script, you will notice the isocurves in Cyan color as a Dec 4, 2014 · This is similar to the post here where there was a discussion of how to create renders or vector images of surfaces. Then just explode them if you need individual segments. How to use Sweep1 and Sweep 2 commands. To remove a curve from the selection Press Ctrl (CMD) while clicking. Oct 24, 2017 · You can use isoparametric curves to recreate an existing surface with different parameterization. The ExtractPt command places point objects at curve control points or edit point locations, surface and text control point locations, and polygon mesh vertices. Mar 23, 2021 · Hi, I am trying to extract an outline curve from a complex mesh – so far I am working with duplicatemeshedge … but the result ist not entirely satisfactory. the outer most point of the surface in that axis. In the following picture, I used the Top view, start angle 85º to end angle 95º, and the Border only option to get curves that look like The OffsetCrvOnSrf command copies a curve or surface edge on a surface so that all locations on the copied curve are a specified distance from the original curve and lie on the surface. I’m fairly certain I’ve used the Extract object sub-elements The commands that extract parts of objects can be used to Create curves based on the geometry of the object. Important - the resulting surface will have singularities at the ends of the curve segments which can cause problems in other Extracting Isoparametric Curves from Surfaces Demonstrates how to extract isoparametric curves from surfaces. I have been reading about sets and indexes but can’t quite understand how i can tell GH I want certain points by their coordinates. Perfect for anyone looking to create accurate contour lines. 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). To do this, extract several isoparametric curves, and Loft a surface through them. There are a number of commands that can create and edit curves, but there are also lots of ways we can extract curves from objects in Rhino. Nov 11, 2020 · The ExtractPt command places point objects at curve control points or edit point locations, surface and text control point locations, and polygon mesh vertices. With the “extractisocurves” its easy to do so, but the problem is that it only allows to do it one at a time. If you're new to Rhino, we've got you covered with a tutorial that covers the fundamentals of working with editing curves, surfaces, and 3D Shapes in Rhinoce What are you trying to extract with make2d? The isocurves are referent to a single surface. A polysurface is comprised of multiple surfaces, each of those thick edges squares is a surface. This is my mesh and the edge I want to isolate: But what I get is a bunch of curves, and the outline curve I am after isn’t even continuous and requires a lot of clean up: It is for a casting form like this: Any idea how this could Oct 24, 2017 · To do this, extract several isoparametric curves, and Loft a surface through them. Is there a way to Aug 10, 2018 · I have several models, each of which contain a number of planar surfaces to be used as patterns for waterjet-cutting. Free How to Rhino Community 👉 https://www. The waterjet guys don’t want surfaces; they want simple curves. We'll see how we can keep the most amount of flexibility when des In this Grasshopper tutorial for beginners we'll explore how to extract the U or V curves of a surface or polyline by defining a simple toggle. AT the moment, it’s done in individual steps of ExtractIsocurve. What I did was select the surface, used ExtractWireframe, then Feb 4, 2022 · I have a bunch of buildings, and want to get the outer silhouette to perform a set of split operations on the terrain surface. Nov 11, 2020 · Create curves based on the geometry of the object. Thanks, in advance, for The ExtractPt command places point objects at curve control points or edit point locations, surface and text control point locations, polygon mesh vertices, and so on. The border curves or Oct 24, 2017 · Use existing objects to create curves by using the objects as location references or by copying borders, edges, and outlines. while the rhinoscript has much more useful commands to deal with such problems, the Rhino tools for creating curves from objects. 5K subscribers Subscribe The ExtractSrf command separates or duplicates polysurface, Extrusion, or SubD faces. Move the edge mid towards the center by a modifiable amount. Mar 23, 2025 · Extrude curves and surfaces Extrudes use a base curve or surface to make an open or closed shape. This will be the basis for the solid you are Revolving a curve creates a surface by revolving a profile curve around an axis. What’s the best way to “explode” all of the selected surfaces into their edge curves? From searches of the Forums, as well as Google, it appears not to have a simple explanation. Input Basically all object types Polysurface face and edge (Sub-selected) Mesh/SubD face, edge, and vertex (Sub-selected) Different vertices are extracted from smooth and flat SubDs. com Planar Curves ("Surface") – Any and all curves must lie in the same plane Edge Curves ("Surface") - 2, 3, 4 edge (open) curves Curve Network (“Surface”) – Select curves. This is a great tutorial for beginners Can a surface be turned into a curve? You can extract edges or isocurves of surface!!? Apr 30, 2018 · I have a RhinoScript that operates directly from Rhino itself. 2 Select your profile and type in “Revolve” into the command prompt. Apr 22, 2025 · Hi, Over here I am working on a vessel hull script to add a ‘round bilge’ to a developable hull shape that I model and edit in Rhino. Mar 23, 2022 · Is there an edge loop extract to curve tool for subds? You can dupedge to get an actual edge, or extract multiple isocurves from several surfaces at a time. To do this, I used this guide to extract the vector curves using Make2D. Now I am converting the shape to nurbs, rebuild the surface and than extract all horizontal isocurves. ExtractIsoCurve strObject Nov 13, 2010 · Hi guys,I've got a surface in GH and I'd like to extract its curves. Steps: Select options. Must have two directions Surfaces use ALL curves (Edge + Interior) Revolve ("Surface") - Curve, Axis of revolution (point 1 then point 2), Angle Apr 15, 2020 · Is there a way to get a curve that follows the quad of a surface? i. Use ExtractClippingSections command to extract curves and hatches in place and ExtractClippingSlices to extract surfaces and slices in place. com Example Const rhObjectSurface = 8 Dim strObject, arrPoint, arrParameter strObject = Rhino. 3. Then I’d get rid of the surfaces that aren’t closed by SelSrf and delete those. In order to have a visual feedback when I edit the amount of bilge, it would be nice to have the isocurves at two knots positions. Dup edge demands that I pick every edge manually, there are thousands of them, the mesh is super dense… mesh outline flattens the curve but I need the Z axis variety. Jan 10, 2018 · Hello, I’m trying to select the curves or edges from a solid body but I dont know how. When you are extracting a surface from the polysurface the ExtractSrf command can save you a lot of time (as opposed to Explode). Jan 28, 2019 · I can extract the wireframe mesh, but there is no centerline!! It would be a wonderfully helpful addition to be able to do this with imported geometry, and give a very useful way to rapidly and accurately integrate with new geometry made in Rhino. Nov 9, 2024 · Master the contour command in Rhino with this complete step-by-step guide. May 30, 2017 · What I did was getting all the linear edge curves like in the SampleCsDuplicateBorder (since I only need those) and looked if they are in the BoundingBox I get from the objref. Aug 19, 2020 · Is it possible to make the surface with curve without trim? One method to create one possible surface from the curve is to Split the curve into four segments. How to use Edge Curves, Extrude Curves, Loft Curves and Revolve Curves. Command-line options Copy Specifies whether or not the selected faces are copied. I then intend to overlay these curves onto the raster render. If you need to place an object on a surface, use the ExtractIsocurve command to add visual cues or locations that can be snapped to on the surface area and help position the object. This is because it lets you extract only the selected surfaces from the polysurface, and so there is not as much joining work to do afterward. Rhino supports extracting curves, hatches, surfaces, and slices of clipping planes for modeling and fabrication. Or you can try to trace a curve that intersects the mesh from the side, extrude the curve and intersect the resulting surface with the mesh. sub curve, delete sub curve, extract sub curve, insert line into curve in rhino TutorialCells software 12. Aug 12, 2013 · I would like to get just the profile curve from a landscape mesh to use as an extrusion line. If you just want a cross section of a determined area, just use the section command. Surface (). Click Extract boundary line frommesh from the RhinoResurf menu or type RsMeshBdryCurves at the Rhino command prompt. Separate the render or analysis mesh from an object in order to use the mesh for a different purpose such as rapid prototyping or rendering. Oct 24, 2017 · To remove a surface from the selection, press Command ⌘ while clicking. May 1, 2022 · Hi, I’m trying to extract the edges of my object surface as isocurves using the ExtractIsocurve command. 3dm. Is there a command for this? In Rhino, there's the 'select crv' and 'extract wireframe' op… You can also use DupFaceBorder and select a single surface of the polysurface and get all the border curves. This can be helpful for creating surfaces for apply Oct 24, 2017 · The ExtractPt command places point objects at curve control points or edit point locations, surface and text control point locations, and polygon mesh vertices. The Dir command can change the u‑, v‑, and normal‑directions of a surface. SurfaceClosestPoint (strObject, arrPoint) Rhino. Do I need to implement it myself? Have I missed an easier solution during my research? Thanks! Curve direction. I suppose it was ok because when i look to the viewport it Jul 29, 2024 · Extracting Edge Loops in Rhino Tips and tricks for a beginner using Rhinoceros 3D One of the most useful things you can do when working with a mesh and reverse engineering it is to get the edge … Nov 13, 2013 · Topic Replies Views Activity Convert boundary of a hatch to curves Rhino for Windows 2 1336 October 31, 2019 Adding or subtracting boundary from hatch after the hatch has been made Rhino for Windows 12 3415 June 4, 2021 Mar 28, 2010 · I'm trying to extract the UV curves from a surface, however I many more curves than I require. Font Selects the font and style. I tried using “brep 1” to extract wireframe edges to use as a splitting curve but I realized that wouldn’t work. Nov 13, 2010 · Hi guys,I've got a surface in GH and I'd like to extract its curves. Create Specifies object type. Create an extruded surface Open the tutorial model ExtrudeCrv. it seems like there must be a command for this. In particular, I have this surface: of which I wanted to transfer to Illustrator. Dec 7, 2023 · I am trying to extract a render mesh from an object that is a surface. Rhinoceros 3D: Demonstrates how to extract the isoparametric curves from selected surfaces. 3dm (129. Extract object sub-elements The commands that extract parts of objects can be used to Create curves based on the geometry of the object. then I set the Mesh generation parameters to make it the more realistic i could to make the mesh comparable to a surface fillet. Surface from Curves Overview In this tutorial you will learn the difference between curves and surfaces. I would like to ctrl+shift+drag a curve and then extract the selected subcurves. Nov 10, 2023 · I have an angled surface and I’m trying to extract horizontal lines down the surface like I did with the vertical lines, though with the vertical ones I used divide to get a consistent distance between them and used extractisocurve but I cant use extractisocurve for the horizontal lines since theyre picking the angle not an orthagonal horizontal line. Sep 25, 2015 · Hey all! found this one in the old forums Rhino - Rhino - Search Results @pascal your script doesn’t work anymore in V5 64bit; tween curves works - any update to the script so far? would be very handy thanks H! Mar 21, 2021 · I assumed surface edges - not “curve edges”. skool. How can I Extract that surface to One Outer Close Curve and other Inner Close Curve per Hole. Create Surface from Edge Curves Demonstrates how to create a surface object from four edge curves. Is there any way of getting the original curves back? Thanks. Sep 9, 2025 · Rhino windows , rhino7 3 268 March 3, 2024 Explode a Surface in Rhino to get curves Rhino rhinocommon , rhino6 , rhino7 , grasshopperrhino , rhino8 2 87 January 29, 2025 Trim Curve / Surface Rhino Developer 4 1101 November 10, 2014 Trim without surface Grasshopper grasshopper 8 731 October 9, 2019 Rhino3D Tutorial: Surface from Network of Curves Command PC Sim 17. Right-click in the edit area to cut, copy, and paste text. I haven’t seen any good solutions to this problem, am I missing something? I’m looking for closed curves like the green line (without the offset). Optional: Press F1 to review the Help topic for the ExtrudeCrv command. GetPointOnSurface (strObject, "Select location for extraction") arrParameter = Rhino. To extract boundary lines from mesh: 1. me/rhino_tricks_by_aghamore From the input surfaces extract the corners, edge midpoints, surface center. Any suggestions are appreciated, thanks! The example attached is the essence of what i To remove a curve from the selection Press Command ⌘ while clicking. In that surface I put several curves which I added to surface objects properties as a shutlining and configured it as fillet/radius. To do this I thought I could use 'join Brep', followed by 'Brep components', but it just returns me the edge curves of the unjoined situation. Revolve curves 1 ate a profile. Mar 13, 2022 · Hello, is there a way so that I can extract horizontal and vertical curves out of SubD seperately!!! Sub-D. Generate contours for your surface in seconds. All of them stitched together give you your polysurface. For example, the blue curve on the right. I tried to rebuild a surface, but my knowledge is too restrained yet so I can make it done. So a Rhino surface is input for GH. Jun 21, 2016 · Hello, Is there an option in Rhinoceros to extract the mid-surface from a solid object (with varying thickness and complex cross-section geometry? Regards, Sushant Learn how to extract points from your Rhino model with this YouTube tutorial, including tips for efficient point extraction. Is there a command for this? In Rhino, there's the 'select crv' and 'extract wireframe' op… Jan 30, 2024 · Hello, I have been looking for and easy way to extract list of points from a rhino object but I couldnt find any in any documentation/topic. Nov 14, 2023 · 1 734 April 21, 2017 Extracting edge from surface as isocurve Rhino windows 12 9162 May 2, 2022 Create UV curves VS unroll surface issue Rhino for Windows 1 2116 August 2, 2013 Extracting isocurves from multiple surfaces Rhino for Windows isocurves 4 3429 May 23, 2017 Planar faces > no isocurves shown > ExtractWireframe bug Rhino windows , mac Nov 11, 2020 · Use existing objects to create curves by using the objects as location references or by copying borders, edges, and outlines. The CurvatureGraph command displays a curvature graph on curves and surfaces. I’m looking to remove these to export clean and simple geometry from wireframe view. Rhino How To Extract Curve From Surface Tutorial is a rhino manual that teaches how to extract a curve from a surface. Thank for any help. The following methods are available for creating, querying or manipulating surface and polysurface objects. If you need to put angled cross sections along a surface, use the Section command instead of the ExtractIsocurve command. com/howtorhinoHow to Extract Surface in RhinoRhino tutorials for architectshttps://howtorhino. gl/aUPwz9more. Thank you! May 8, 2022 · Hi! I want to create a mesh/surface from contours that I imported from CAD with Z-values. Learning Rhinoceros. At the moment im working on a topographic 3d with flat layers every meter, and I would be interested in exporting the isocurves from the surfaces in order to give a more realistic look to the elevations. Extrusions can be polysurfaces or lightweight extrusion objects. I wonder what the quickest way is to create a surface from these contours? I prefer not having to use Grasshopper due to time constraints of learning a new program. Curves don’t have edges exactly… If you want to duplicate curve segments you can use the following: Subobject select the segments you want and use Copy>InPlace. 5 KB) Feb 24, 2021 · Hi, I was wandering if there is a way rebuild and extract isocuves from subD. In this quick tip we will have a look into how to extrude a curve in Rhino the "right" way. Is there a command to wrap a curve around a surface? (basically the opposite of the"UnrollSrf" command) : r/rhino r/rhino Current search is within r/rhino Remove r/rhino filter and expand search to all of Reddit Jan 22, 2010 · hello,does anyone know which method/property of OpenNurbs would extract isocurves from a surface at specified uv coordinates ? best 5. The boundary lines represented by NURBS curve will be displayed. (Interpolate is easiest). At the Extrusion Jun 1, 2015 · Are you extracting an isourve that is at a set distance from an existing curve or extracting multiple isos at a set interval? In any case, other than very limited and special cases, the distance will not be constant, so you’ll have to decide where you want to measure it. Sep 25, 2024 · Projects object sections from 3D space to the World XY-plane, on the current layer, with user-specified spacing and arrangement. Aug 14, 2019 · This guide is an in-depth review of parametric curves with special focus on NURBS curves and the concepts of continuity and curvature. Surface normals are represented by arrows perpendicular to the surface, and the u‑ and v‑directions are indicated by arrows pointing along the surface. Is there a way to create a curve from a surface in grasshopper? May 31, 2023 · I am looking for the command to extract a piece of a curve. Oct 2, 2024 · Extract points from a curve in Grasshopper with ease! Learn essential methods, components, and tips for placing points on curves. OutputLayer Current Places the results on the current You can extract the edges of a mesh as lines, but it’s a lot of work as you need to select edges manually one by one. Mar 2, 2018 · Looking for a way to extract multiple evenly placed U Isocurves from a surface in grasshopper. Jun 10, 2014 · Hi. yrfefopiu
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