Rhino Intro

8/6/2019 Rhino Intro

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DOUBLY CURVEDSURFACES MODELING

[email protected]


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PROJECT WORKFLOW

POINTS, LINES, MESH

MESH,NURBS

NURBS, MESH, SUBDIVS

MESH MESH


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WORKSHOP SCHEDULE

Nov 28 Dec 5

morning

2D/3D Complex

morning

nter acepatternscurves

ur acemanipulatesolids

afternoon

surfacesconstruction

your projecthelp with

afternoon

c oices

Intro,papermodel

Solidsmodeling


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Before we start:

tee ree o stop mewhenever you feel it is

necessar or ou dont haveeverything 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 ractice:

tuse e meter mo e spacewith small objects

recommanded

or the centimeterlmo e space w large o s.Thirdl mm large .


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INTERFACE

Construction planes (Cplane) are view-dependent (one in each window)

: sym o s

LOCAL: X is RED and Y is GREEN Z through right-hand rule


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SHORTCUTS

h l1 helpF2 (commandHistory) -temporarily disable oSnap-copy object instead of dragF3 (properties)

camera Ctrlcamera F8 (ortho)

-elevator mode

F10 (pointsOn)i t Off

Shift-temporarily toggle ortho

11 pointsOff


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GEOMETRICAL


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POINTS AND LINES

pointGridpoints

pointCloudpoint drapePt

p


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POINTS

0,0,0 0,0,0, , , , , , , , , , , ,

When you give coordinates , you can add an r to make the coordinaterelative to the last given point.


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CURVES

curves are renders of mathematical equations B- B-Splines)

they have: a degree

t l i tey ave: control points

they have: weights


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CURVES

draw 3 or more curves with the same control

.


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CURVES

you get a straight line after as many points edit point in a row

as e egree o e curve.


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CURVES

If we use any third degree NURBS curve,

,the first curve segment to coincide again will be the one between the 2nd-last and the3rd last modified point. After that, all will coincide again.


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CURVES

explode explode

Otherwise ou can divide it with split split


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CURVES

You can join them back together, with Join, but they will be transformed intopolyLines and polyCurves (depending on the degree).

Try the command Properties to inspect the outcome.


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CURVES

rebuildn ome ua on we may nee o rebuild e e o ycurve , o a ey canreturn to be a single entity.

rebuildCrvNonUniform rebuildCrvNonUniform.

Both these commands reconstruct selected curves or surfaces to a specified degreeand 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 dont add manymore points.

IN A INSTANT


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IN A INSTANT


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SURFACES


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besides points and curves,

An isoparametric curve (isocurve) is a curve of constant u- or v-value on a surface. Rhino uses isocurves andsurface 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.

SURFACES


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SURFACES

Platonic solids and regular surfaces

default.solid toolbar

some of these commands create sin ular surfaces

SURFACES


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SURFACES

curvature anal sis of some sin ular NURBS surfaces

SURFACES


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SURFACES

zebra to visualize osition tan enc and curvature continuitwrite help for more information about it

SURFACES


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SURFACES

dir (to visualize and change direction of orientation), with crvs & srfsso s a ways ave e norma owar e n er or.flip directly turns the direction of crvs and srfs.

SURFACES


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SURFACES

10 basic methods of surface creation in Rhino

SrfPt ExtrudeCr Sweep1 LoftevolverfPtcornerpoints

ExtrudeCrvone curveand one

Sweep1rail (crv)profilecrv

sections(curves)

Revolveprofile(crv)axis 2

size)*

EdgeSrf BlendSrf Sweep2pts)

RailRevolverail curve

NetworkSrf2,3,4edgecurves

wosurfaces

rail 2 (crv)profile (crv)

profile ) (crvaxis)

crvs

* More options of input are available


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SURFACES


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SURFACES

h i kT i dS fsplitting along an isocurve will also automatically shrink the surface.n some excep ona cases, we can use e comman shrinkTrimmedSrf.

TRANSFORM TOOLS


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TRANSFORM TOOLS

If you are familiar with any modeling software, youll find out that

you can guessou can guess .

VARIOUS OTHERS


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VARIOUS OTHERS

in the next exercises you might find also the following other commandsuseful:

- divide a curve- offsetffset - project (parallel) onto a surfacepull- pull- extrudeSrf to solidify a surface (straight movement)- 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

FIND YOUR WAY


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Yourpaper

, ,mo e

Your3Dmodel

bend!, twist!, trim!


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PROJECTS WITH RHINO

PROJECTS WITH RHINO RYOKO IKEDA


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Social facilitation building in New York

Graduation Project Border Condition 2008


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Copyright Giulio Piacentino 2008

r g s reserve . e au or may gran a eren

license in writing. [email protected].

Rhino Intro

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