Tilburg Rhino one-day crash course handout
Transcript of Tilburg Rhino one-day crash course handout
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PROJECT WORKFLOWsoftware used in current architectural discoursesoftware used in current architectural discourse
POINTS, LINES, MESH
MESH,NURBS
NURBS, MESH, SUBDIVS
MESH MESH
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WORKSHOP SCHEDULE
Nov 28 Dec 5
morning
2D/3Di f
Complex surfaces
morning
interfacepatternscurves
surfacesmanipulatesolids
afternoon
surfacesconstruction
your project help withh i
afternoon
choices
Intro,paper model
Solidsmodeling
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Before we start:
f l f t tfeel free to stop me whenever you feel it is
necessary or you don’t have y yeverything clear!
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THE RHINO INTRO
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INTERFACE
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INTERFACE
You can give instructions to Rhino by: menu items, command line and buttons.
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For architectural practice:p
th t d luse the meter modelspacewith small objects (recommanded),( ),
or the centimeterd l ith l bjmodelspace with large objs.
Thirdly, mm (large).y, ( g )
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INTERFACEConstruction planes (Cplane) are view-dependent (one in each window)
GLOBAL b lGLOBAL: symbols
LOCAL: X is RED and Y is GREEN Z through right-hand rule
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SHORTCUTS
F (h l ) AltF1 (help)
F2 (commandHistory )
Alt -temporarily disable oSnap-copy object instead of drag
F3 (properties)
F6 (show camera) CtrlF6 (show camera)
F8 (ortho) -elevator mode
F10 (pointsOn)
F ( i t Off)
Shift-temporarily toggle ortho
F11 (pointsOff)
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GEOMETRICALBASICSBASICS
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POINTS AND LINES
points and straight lines are the easiest set p gof objects in rhino
points can be grouped into pointClouds
li b j i d i t l lilines can be joined into polylines. polylines are still MANY lines.
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POINTS AND LINES
pointGrid
points
pointCloud
point drapePt
pp
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POINTS
0,0,00 0 10 0 0 20 0 0 30
0,0,0r0 0 10 r0 0 10 r0 0 100,0,10 0,0,20 0,0,30 r0,0,10 r0,0,10 r0,0,10
When you give coordinates , you can add an r to make the coordinate relative to the last given point.
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CURVES
curves are renders of mathematical equationscurves in rhino are NURBS curves (Non Uniform Rational Bcurves in rhino are NURBS curves (Non-Uniform Rational B-Splines)
they have: a degree
th h t l i tthey have: control points
they have: weights
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CURVES
draw 3 or more curves with the same control points and different degreespoints and different degrees.
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CURVES
you get a straight line after… as many points edit point in a row th d f thas the degree of the curve.
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CURVES
If we use any third degree NURBS curve, and we modify any set of pointsand we modify any set of points,the first curve segment to coincide again will be the one between the 2nd-last and the 3rd last modified point. After that, all will coincide again.
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CURVES
If the curve has kinks, you can explode it into smaller partsIf the curve has kinks, you can explode it into smaller parts
Otherwise you can divide it with splitOtherwise you can divide it with split
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CURVES
You can join them back together, with Join, but they will be transformed into polyLines and polyCurves (depending on the degree).
Try the command Properties to inspect the outcome.
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CURVES
In some situations we may need to rebuild these polycurves so that they canIn some situations we may need to rebuild these polycurves, so that they can return to be a single entity.
A similar command to try is also rebuildCrvNonUniformA similar command to try is also rebuildCrvNonUniform.
Both these commands reconstruct selected curves or surfaces to a specified degree and with a specified number of control points.
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CURVES
Not always it is easy to rebuild a curve to something similar, if we don’t add many more points.
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IN A INSTANT
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SURFACES
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besides points and curves, NURBS surfaces are the basics of geometry in Rhino and can be used to draw both flat things and objectsNURBS surfaces are the basics of geometry in Rhino and can be used to draw both flat things and objects
An isoparametric curve (isocurve) is a curve of constant u- or v-value on a surface. Rhino uses isocurves and surface edge curves to visualize the shape of a NURBS surface. By default isocurves are drawn at knot locations. If the surface is a single knot-span surface like a simple rectangular plane, isocurves are drawn also in the middle of the surface.
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SURFACES
NURBS are inherently rectangular (U / V)
also surfaces can be rebuilt.
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SURFACES
Platonic solids and regular surfaces
default.solid toolbar
some of these commands create singular surfacesg
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SURFACES
curvature analysis of some singular NURBS surfacesy g
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SURFACES
zebra (to visualize position, tangency and curvature continuity)( p , g y y)
write help for more information about it
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SURFACES
lid l h th l t d th i t idir (to visualize and change direction of orientation), with crvs & srfssolids always have the normal toward the interior.flip directly turns the direction of crvs and srfs.
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SURFACES10 basic methods of surface creation in Rhino
SrfPt ExtrudeCr Sweep1 LoftRevolveSrfPtcorner points
ExtrudeCrvone curveand (one
Sweep1rail (crv)profile (crv)
sections(curves)
Revolveprofile (crv)axis (2 (
size)*
EdgeSrf
( )
BlendSrft
Sweep2rail 1 (crv)
(pts)
RailRevolverail (curve
NetworkSrf4 or more2,3,4
edgecurves
twosurfaces
rail 1 (crv)rail 2 (crv) profile (crv)
(profile ) (crv axis)
4 or morecrvs
* More options of input are available
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SURFACES
trim will cut the surface. But the control points remain.
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SURFACES
i ti l th d h i kT i dS f
splitting along an isocurve will also automatically shrink the surface.
in some exceptional cases, we can use the command shrinkTrimmedSrf.
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TRANSFORM TOOLS
If you are familiar with any modeling software, you’ll find out that
you can guess what each of these buttons will doyou can guess what each of these buttons will do.
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VARIOUS OTHERS
in the next exercises you might find also the following other commandsuseful:
- divide a curve- offset a curveoffset a curve
- project (parallel) onto a surfacepull a curve onto a surface- pull a curve onto a surface
- extrudeSrf to solidify a surface (straight movement) d ( )- offsetSrf to solidify a surface (parallel movement)
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A MODEL
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which rules can you use?
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which rules can you use?make lines, extrude,
solidify
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FIND YOUR WAY
bent twisted cut
Your paper
d l bent, twisted, cutmodel
Your 3Dmodel
bend!, twist!, trim!
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PROJECTS WITH RHINO
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PROJECTS WITH RHINO RYOKO IKEDA
Social facilitation building in New York
Graduation Project Border Condition 2008
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Copyright Giulio Piacentino 2008
All i ht d Th th t diff tAll rights reserved. The author may grant a different license in writing. [email protected].