Intro Document on Rhino Part3 - WordPress.com
Transcript of Intro Document on Rhino Part3 - WordPress.com
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Before You Start, Familiarize Yourself
With These… ( Part 3 )
Alexandre Galinwww.alexandregalin.com
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Picture Frame
To insert an image, photo or sketch... as a background, type in the command line, Picture Frame in Rhino V5 or Picture in Rhino V6.
Always draw 1:1 scale your subject. Use the dimensions on your image to scale your picture to the true scale. ( Use scale 2D to achieve that )
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Draw 2 lines. The first line , 1, should line up with the dimension line on your picture, the second line ,2 , should be offset ( or copied ) at 9.43 inches from the first sketched line.
9.43
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Use Scale 2D, to properly align the Picture with the sketched lines. Use the lines seen on the Picture and scale it down to the lines drawn in Rhino. Use the snapping at end point to achieve that.
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To position at the origin, select a specific point on your image & do Move. Enter 0, in the command line to position your image at 0,0,0 on your coordinate sys.
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Do the same in the Front & Right viewports.
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To adjust the level of transparency of your images, select one of the pictures & go to the Propertiestab. Select Materials (1), go to Object (2), et change Transparency (3) to desired level.
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To create & Save Auxiliary Construction Planes ( Cplanes )
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To create & Save Auxiliary Construction Planes ( Cplanes )
There are many ways to position your Cplane.
Using 3 Points is very common.
identify the new origin
define the X axis direction
define the Y direction
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Right Click on the viewport’s tab
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The construction grid will be repositioned
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3There are many ways to position your Cplane.
Using 3 Points is very common.
identify the new origin
define the X axis direction
define the Y direction
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Press the F7 key to show / hide your construction grid
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To Save your Cplane do :Set Cplane --- Named Cplanes
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Select Save as and give it a name
The new Cplane is saved
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To view your grid in Plan view do :Set View---- Plan
The view will be adjusted depending on how you positioned your X and Y axis
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You are now working on a plan view on your auxiliary plane
Now you can draw any 2D shapesas if you were in an orthographic
view
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To revert back to perspective viewSet View---- Perspective
The view will switch back in Perspective
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To get back to the original construction grid ( XY Plane ) Set Cplane---- World Top
World Right & World Front are the default Cplanes for the Right & Front viewports
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The grid is brought back to its original position.
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Use the command Analyse Direction to view your normal on your surfaces or your polysurfaces.To change the normals direction , left click your surface or select Flip on the command line
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To better visualize which surface is the backface, go to the Rhino Options Document, ( Tools---- Options, on the menu bar )Go to Shaded ( for example ) & go to Backface Settings. Choose a color.
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Boolean Operations: Union, Substraction , Intersection
When performing Boolean operations ON SURFACES & POLYSURFACES. Make sure the normals point outwards and NOT INWARDS, otherwise the Boolean operation will yield unexpected results. Use the Analyse Direction, 1, to flip the normals’ direction.This issue will not happen when performing Boolean operations on SOLIDS ( Closed Polysurface ).
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