How to sweep lines into surfaces in Rhino

How to sweep lines into surfaces in rhino? Rhino's centerline sweep function allows users to convert one or more curves into a closed surface. This is useful when creating complex models, converting 2D sketches into 3D shapes. This article will introduce you to the method of sweeping the center line into a surface in Rhino, and guide you how to operate it so that you can easily create the model you need.

First, create the two curves as shown in the figure. The requirement for monorail sweeping is to have a path and a cross-section curve. The path and cross-section curve do not need to be in contact. The path can be a curve or a straight line.

Find the arrow in Figure 1 below Point to the icon and click the small triangle below the icon. Then it will pop up the window as shown in Figure 2 below. Find the [Single Track Sweep] icon selected in Figure 2 and left-click.

As shown in the picture, follow the instructions on the indicator bar to select the path and section curve. The section curve is generally a closed line. First click on the path, then click on the curve and then press the [enter] key to confirm.

As shown in the picture, the system will display the curve seam points. If you are not satisfied with the seam points at this point, you can use the mouse to click on the curve Move up and select a new curve seam point.

After determining the joint points, press the [enter] key, and the window as shown in the figure will pop up. It shows some transformation options for the single-track swept graphics. You can according to the needs of your own model. Make your selection. After selecting, press the [OK] option to get the model shown in Figure 2 below

As shown in the figure, the editor has established two curves and a section curve. Two-track sweeping requires two paths. To constrain the shape of the surface, if the surface you need changes uniformly, use single-rail sweeping, and if the surface changes unevenly, use double-rail sweeping.

Dual-track scanning is similar to single-track scanning. Find the icon pointed by the arrow in Figure 1 and click the small triangle below the icon. Then it will pop up the window shown in Figure 2. Find the [Double Track Sweep] icon selected in the frame in Figure 2 and left-click.

As shown in the picture, follow the instructions in the indicator bar to select the first path, the second path and the cross-section curve in order, and press the [enter] key to confirm

Same as single-track sweeping, as shown in the picture, the system will display the curve joint points. If you are not satisfied with the joint points at this point, you can Move the mouse on the curve and select a new curve seam point.

After determining the seam points, press the [enter] key, and the window as shown in the figure will pop up. It shows some transformation options for the graphics after double-track sweeping. These The options are different from the monorail sweep, and you can choose and change them according to the needs of your model. After selecting, press the [OK] option to obtain the model shown in Figure 2. We can see that the shape of the cross section changes along two curves.

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