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Home > Documentation for RhinoResurf

Table of Contents

1. Introduction

Download and Install RhinoResurf for Rhino 4 (32-bit) and Rhino 5/6(64-bit)

Loading RhinoResurf into Rhino 4.0 (32-bit) and 5/6(64-bit)

License Agreement

2. Command Reference

Command Reference













3. Tutorials


Tutorial 1 - Convert a mesh to a surface

Tutorial 2 - Convert a surface from a sub-mesh

Tutorial 3 - Drape a surface over a point cloud

Tutorial 4 - Convert a mesh to multiple surfaces with quad face

Tutorial 5 - Use Fix button to smooth the wavy surface in _RsMesh2Surfs

Tutorial 6 - Convert a mesh to multiple surfaces with trimmed surface

Tutorial 7 - Automatic surfaces (solid) generation from mesh

Tutorial 8 - Single surface from curves

Tutorial 9 - Point cloud to mesh

Tutorial 10 - 6 Steps to create a solid from mesh by using RhinoResurf

Tutorial 11 - Fit mesh to NURBS surface by specifying shape type. ( Command: _RsMesh2Surf in RhinoResurf for Rhino 4 or 5)

Tutorial 12 -morph the geometry from original mesh data to compensated mesh data by using command _RsSurfacemap

Tutorial 13 -Point cloud to trimmed surfaceorph the geometry from original mesh data to compensated mesh data by using command _RsSurfacemap

Tutorial 14 -Create multiple surfaces by using command 'CreateQuadMesh' and '_RsMesh2SurfsByPolygon' in Rhino 6 (SR10 or greater)

Tutorial 15 -Fill hole with surface on G1 continuity with neighbor patches

Tutorial 16 -Unfold 3D mesh into 2D mesh

Tutorial 17 - Method for quickly converting cylindrical topology mesh surface into smooth NURBS surface


4. FAQs

FAQ 1 - Why RhinoResurf register dialog does not display in my Rhino



Tutorial 15 - Fill hole with surface G1 continuous to neighbor patches

In this tutorial we will show how to fill a hole with surface by selecting surface edges on the condition of G1 continuity to neighbor patches.

Command: RsFillHoleBySurf

Step 1 : Start Rhino 5/6 64-bit.

Step 2: Select Importů from the File menu. Download the igs data file from here and import the geometry model as shown in the following picture:


Step 3: Using Rhino command 'SplitEdge' to Split surface edges on the hole boundary line. (The surface edge has been cleaned in this igs data file and you can skip this step and go step 4 directly).

Run command 'SplitEdge' in Rhino command prompt, select one hole boundary line, you will see the following left picture. The yellow curve shows the surface edge where only the hole boundary segment will be used to create hole surface, therefore the other segments should be splitted out. After you splitted the surface edge, you will get the hole boundary line as the yellow curve shown in the following right picture.

When you split the surface edge, you should be very careful to select the right point on the corner where one surface edge intersects to another surface edge. The following picture shows that we zoom in the hole corner and select the point to split the edge. In this way, we can pick the corner point that is the nearest point on the adjacent surface.

Step 4: After you have splitted all the surfaces edges, you start to fill the hole. Run RhinoResurf command _RsFillHoleBySurf , select the surface edges.

Step 5: Click right mouse button when you finished the surface edge selection, you will see a new surface filled the hole, and a dialog shows , in the dialog , the control point value "U: 31; V:21" shows the control point number of the new surface. This dialog will let you refine the surface with reasonable parameter setting.

Also you will see a tolerance report shown in Rhino prompt. This report said the maximum distance between the surface edge and new surface is 0.121723, the average distance is 0.00191; the maximum normal angle between the new surface and neighbor patches is 0.339422 degree , the average angle value is 0.042617 degree.

Step 6: If you want to reduce the maximum normal angle value, set the 'max normal deviation' value as '0.1', and click button 'Apply' .


Step 7: And you will see the tolerance report in Rhino prompt, the tolerance value is reducing.


Step 8: If you want to make the tolerance value reduce more fast, you check the button 'Add new control point'. The program will find reasonable position to insert new knot and increase reasonable control point , this is helpful for seepd up tolerance reduction.


Step 9: You click button 'Apply' again and again, you will see the surface is updated, the control point number increased to be 40X23.


Step 10: And you will see the tolerance value report in Rhino prompt, the maximum normal angle tolerance reduced to be 0.098503 this time.


Step 11: You can continue to click 'Apply' button again and again for getting better result. The following picture shows the surface after increasing the control point number.


In the dialog panel, click the checkbox 'Show' and check it, set the 'Continuity' as 'G1' , you will see the details of the normal angle deviation report on the boundary line:

And when you analyze the surface, you will get the following picture and you can see the surface quality.

Step 12: Compare RhinoResurf command RsFillHoleBySurf to Rhino command Patch . You apply Rhino command Patch to this same model and analyze the surface by zebra , you will see the following picture, when you zoom in the details, you will find some zebra lines are not continuous, this means the surface is not G1 continuous there.

The following picture shows the details on the same position created by RhinoResurf surface, you will see the zebra lines are still continuous when you zoom them in.

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