The Join command connects objects together to form a single object. Join turns lines into polylines, curves into polycurvessurfaces and polysurfaces into polysurfaces or solids. Select the objects curves, surfaces, polysurfaces, or meshes to join. Use SelChain to select a string of curves that touch end to end. Your browser does not support the video tag. To select a surface edge as a curve to join, see sub-object selection. The Undo option removes the last selected object from the join operation.
Open topic with navigation. Where can I find this command? It is merely a test to see if the surfaces edges are within 2x tolerance.
If they are, then they are tagged as joined and not available for further joining. Steps Select the objects curves, surfaces, polysurfaces, or meshes to join. Join does not change the surfaces. The edge of a surface can be joined to curves. You can join curves that touch end-to-end.
The order the objects are selected determines the layer of the new joined object.
Rhino: Edit And Combine Surfaces
You can join surfaces and polysurfaces that touch at naked edges. You can join meshes that do not touch disjoint meshes. Joining does not change the underlying surface geometry.
It simply "glues" adjacent objects together so meshing, Boolean operations, and intersections can cross seams without gaps. To change two adjacent surfaces into a single surface, use MergeSrf. Pay special attention to the setting of the Smooth option to get the geometry you want.
Select an object curve, surface, polysurface, or mesh. Select the next object. When you are finished selecting objects to join, press Enter.Once you have the curves you can start generating the surfaces.
Although you can make almost any kind of shape and create extremely complex designs the technique of generating this complexity is quite simple. This has to do with the fact that there are no more than 4 main techniques of generating shapes from curves. If you know these four techniques you can build almost anything. Although there are additional options available for generating surfaces, they are all related to these 4 principle options.
All commands to create surfaces can be found under Surface. Creates an extrusion of a curve profile. There are several options available which gives you a bit more choice in complexity of the generated geometry. The option of extruding along a curve differs from the Sweep 1 rail because the section does not align with the curve generating a non-continuous section. There are four ways in Rhino to create an extrusion:.
Merge Surface? is it possible?
Creates a surface between two or more selected curves. If you select the curves one by one, then the loft will folow the selected order. If you select the curves via a selection window, Rhino will use the most 'logical' order. If you choose other options, click on preview to see what happens.
Click on help for more information about the different options. Creates a planar surface from a planar curves. Curves are allowed to overlap but should always be closed to define the edge of the surface. This option is ideal for sketching the contours of your design and convert the lines and curves into a set of surfaces.
This technique is used in car design, where the complex surfaces of a car body are build from a set of " patches or curved networks. That is why it is called patch modelling. It creates also a surface through at least one profile curve, but the surface is defined by two curves rails. This option is in essence similar to the sweep 1 railthe difference is that here we use two rails.
Similar to an extrusion along a circle. It also creates a surface by revolving a profile curve around an axis, but the surface edge is defined by an extra curve rail. The options of connecting surfaces and detaching surfaces are quite similar due to the similarities between NURBS curves and surfaces. Joining: Like the curves surfaces can be combined into a single surface by joining them. If the surfaces connect at the edges they can be combined into a single object. You can use the Join icon on the toolbar.
They will align the surfaces so that the edges are blended together. There are 3 options available. You can adjust the curvature or bulge by pulling at the control points. You can see a preview via the dialog box and do adjustments.I am trying to merge two or even more surfaces together, so that they become one surface.
The surfaces are tangent on all connecting sides and have no trimmed edges. In fact they are the same The merge command in Rhino works perfectly, but apparently there is no GH equivalent. OR is there? Well this way I am loosing all internal structure- Does anybody have a better idea? Share Tweet Facebook Facebook.
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Grasshopper3d Only. Shrink wrap by doa cicek 0 Comments 0 Likes.The two are created with the same curve at the interface. Thanks in advance. You have double lines at some spots, and not enough on the other parts.
I then made the surfaces by running two rails. This took around 8 minutes, and the parts unroll, except for the curved part, because of the compound curves. All the surfaces joined. The way you corrected it left in double curves that are not needed and will cause problems when you add the trailing edges.
I have uploaded what you made so you can see what I did. If you did it the way I showed, tolerances would not be an issue. The parts would fit, and you could scale it to whatever size you wished. I only post what I have done, by experience, never by intellectualizing, just for the record.
I have designed wings for a few friends who have made real aircraft, they were able to make the formers and internal supports from the drawings I supplied them. The machinery is what can handle it, and this is in temperature controlled environments, as with such close tolerances, the parts change size when they leave the room. Good Luck. And another thing - Is the curved corner constrained to the guide curves, which I provided in the original file?
But it sure does look more elegant when using your method, and more important is that it is independent of the tolerances. What are you opening it with? If you delete everything except what I redid, then there are no errors, see attached file. I have Raytracing with Neon installed, but it is not activated.
The attached file is your design without your model. I used curve network at the Bend, assembling it by Duplicating Edges then deleting some of the stuff you had there.
Right click and use Render to get the shape. As I stated, I design a lot of Paper models, and help other designers with their projects. As I am the Administrator of my forum, I do not have time to do much design, but help others with their design. Everything is FREE on my forum, or it is not allowed, that includes assistance. It is a very peaceful and sharing forum. But thanks for the inputs! And your paper model sure looks nice. I make parts for friends of mine who race cars and do it in this manner.
Just two different ways to get the things done. How to join two surfaces Rhino for Windows. Thanks for the quick reply.Here is the overview of some of the most typical methods. So you either need to rotate CPlane in position normal to projection, or use some Ortho view ie. Front, Left, Right…. In this case, we will use the curve we projected in the previous step to Trim the surface which will create a hole. By the way, I strongly suggest you check this link to see all the possible uses of Trim.Rhino Basics: Sweep2
Sometimes you have a line curve laying directly on the surface maybe you extracted it from the surface — see below, or projected it onto it…. FilletEdge is a complex command that can round the sharp edges between the two surfaces. Note that the radius of the curvature can vary not in this example. See more info about this command hereespecially if you get bad results. At the corners of the edges you select, you will see handles that define how big the curvature radius will be at that point in this case, all the points will have radius 0.
You also see the actual curvature line, which helps you anticipate results. With this option on, everytime we select an edge, Rhino will automatically select all connected edge. However, sometimes, as in this video, an edge may have several connected edges, so we need to tell Rhino which one we want. Polysurface is an object that contains more than one joined surface. Here how we can extract one of the surfaces from such objects — there are different reason why we may need it.
For example, we may want to open the extruded solid on one side, like below:. We already seen how we can use Trim to punch a hole in a surface. When you are modeling in Rhino, it is very likely that you will be modeling it piece by piece, creating different surfaces for different part of the object.
That way I am making sure that both Surface 1 and Surface 2 share the same edge ellipse projected to Surface 1. Note that I need, before joining, to actually Trim surface 1 using the ellipse — so that both surfaces are open.
In order to join the two surfaces that share the same edge — well, you use command called Join same one that joins the lines that share the same point. More on that below.Is there any way to do this? I have try mergesrf, but this method does not work because those are trimmed surfaces.
I need the one single surface to set it as srf into grasshopper and then apply a panneling pattern with LunchBox. I think there is no easy way to do this… for it to be a single surface you have to use for example a single Loft, Sweep or network Surface.
Well a some brute-force sculpting would do it as a single surface, but that might not be suitable for the paneling methods. It just takes time. Start with Ellipsoid and follow the instructions that I wrote as layer names in this 3dm file. The simpler models from the earlier steps that were used to make the latest model are hidden into their own layer.
Very Nice, this way seems to work fine, the only issue I have yet is that the 3 hill the trimmed one Does not match the pattern with the other. Yes, originally that was also my intention as it would result in smoother sides, but I was too lazy to redo the work and build a new ellipsoid from scratch. The teeth are separate surfaces. Organic modeling.
Hey, I think there is no easy way to do this… for it to be a single surface you have to use for example a single Loft, Sweep or network Surface. I would recommend e.
Perhaps there is no need to use a single surface for paneling? I will try to fix this! Big Thanks! This way looks just fine, I will redo the elipsoid with the axis on the other way!Surface Tools. Surface Edit Tools.
The MergeSrf command combines two surfaces into one surface at untrimmed edges. Select two surfaces. Both surfaces must be untrimmed and share an edge.
Your browser does not support the video tag. The resulting surface will be smooth. This makes the surface behave better for control point editing, but may alter the shape of both surfaces.
Surface edges must be within this tolerance for the two surfaces to merge. The Tolerance setting defaults to the Rhino global absolute tolerance.
Zero or a value less than the absolute tolerance is not acceptable. Defines the roundness smoothness, dullness, bluntness, non-sharpness of the merge. The default is 1 full smoothing. Acceptable values are between 0 sharp and 1 smooth.
Open topic with navigation. Where can I find this command? Steps Select two surfaces. The seam where the two surfaces meet smooths out, which is useful for modeling half of an object, mirroring it, and then merging the surfaces together to eliminate the kink. You can edit the resulting surface. Use the MergeSrf command to make them into a single surface. Once you have trimmed surfaces, however, you have to approach things differently.
Trimming curves tell Rhino that some parts of the surface are supposed to be holes or are supposed to be cut out. It is the underlying surface that controls the geometry, and that is what the MergeSrf command needs to join surfaces to make one large surface out of smaller surfaces.
Untrimmed surfaces that share an edge can merge into a single surface. Surfaces can merge only if the shared edge on both surfaces run exactly along u- or v- direction and the surfaces share both edge endpoints. If the merged surface is closed, use the MakePeriodic command to make an even smoother, editable surface. Generally, you can only use the MergeSrf command when you have created untrimmed surfaces by lofting or sweeping and the surfaces share adjacent edges. A trimmed surface has an underlying untrimmed surface that defines the geometry of the shape.
When you turn on the control points for two trimmed surfaces, you will see that even though the surfaces can touch up to one another nicely at their trims, their control points do not line up. If the control points do not line up on two trimmed surfaces, the surfaces cannot merge, as control points merge together to make a single surface out of two individual surfaces.