Interface
Navigating
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Reference files on the filer server:
/Volumes/DDE/BDE_VIAD-MATERIAL/01_VORLESUNGEN & PROJEKTE/17HS/Sem5_EmbodiedFabrication/RhinoAndGrasshopperSampleFiles
Geometry - basic building blocks
geometry | examples of manifestations | parameters |
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points | x/y/z coordinates | |
curve geometry |
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surface geometry (NURBS) |
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solids |
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meshes / polygons |
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Boundary representation (BREP)
geometric entities | topological |
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point | vertex |
line | edge |
surface | face |
Rhino Interface
Setup:
- Turn on Point Snap (End, Midpoint, Center, Intersection, Perpendicular, Quadrant) & Grid Snap
- Turn on Gumball
- Turn on shading for the perspective window (shaded or ghosted)
- Tip: Enter or Space to enter commands
First Steps in
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all (right bottom to left top)
only elements fully enclosed (left top to right bottom)
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Rhino
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What | How | Visual Aid |
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navigating |
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selection | depending how you drag your selection window either everything touched by the selection window is selected (bottom right to top left) or only objects that are fully enclosed by the window are selected (top lect to bottom right) | |
create geometry | _line |
edit 2D | _move |
_join _extend |
- Selection partly and completely (right to left, left to right)
- Practice Line, Arc and Curve drawing
- Practice Split, Fillet Curve,
- Practice Draw and Rebuild CV-Line
- Manipulation: Cut, Extent, Offset, Array, Mirror
- _join, _match
edit with gumball | Turn on control points Turn on gumball
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create 3D geometry | primitives: _pipe operations: _sweep | |
boolean operations | _BooleanUnion | |
use a reference image | _BackgroundBitmap |
First Steps in Grasshopper
Great introduciton to Grasshopper: http://grasshopperprimer.com/
Exercise 01 - Rhino: draw line and revolve
Commands:
- draw line; turning on gridsnap makes things easier
- join the line, if it is not a joined line already
- use _fillet to create the round inner edge
- revolve countour to create a
Exercise 2 - Rhino: transform and extrude, using gumball
Grasshopper - the parametric glass
Premise: design a definition to control height, top&bottom radius and wall thickness through sliders.
- set basepoint in rhino and connect to grasshopper
- create sliders for heith, top&bottom radius and wall thickness
- move (copy) the centerpoints for the all circles but the lower outer radius
- subtract the wallthickness for the inner circles
- create a loft (mind the order)
loft type (O) set to "straigt" - create the bottom inner and outer surface with "boundary surface"
- join all surfaces
- "bake"
Grasshopper - working with attractors
Premise: Control the diameter of circles by the proximity to an object
- Create a "rectangular" grid
- control Size and Extend through sliders
- create circles on the intersetion points (p)
- control the radius of the circles through the distance to a point set in rhino
use a division or mapping to adjust the scale
Grasshopper - deconstruct a mesh
- connect a mesh from rhino
- "deconstruct mesh"
- "deconstruct face"
- read out the edges through "list items"