Wednesday, July 16, 2014

VANILLA PROVE THYSELF

VANILLA PROVE THYSELF

When Robie House was nearing completion, Frank Lloyd Wright had spent the best part of two decades building houses in and around Chicago.  It stands like a ship in dry dock, poised above the street and was for Wright the ultimate expression of his vision of a new type of house, suited to the Prairie, with it's horizontal lines and overhanging roofs.



Having achieved his goal, Wright was ready to move on, abandon wife and family, take up with the wife of one of his clients and head for Europe (via Wisconsin).  What else would you expect from a creative genius, driven by the desire to do things that "never happened before" ?


Although we are beginning to question this notion of the creative superhero it remains central to the world-view of industrial society.  We idolise highly competitive, egotists like Wright, Steve Jobs, Ronaldo, Donald Trump.  We love to believe that they have changed the world forever, invented new ways of being, expanded the art of the possible.  But perhaps it is just a game, part of the never-ending spiral by which our consumer society fritters away the resource capital that our world has accumulated over hundreds of millions of years.


I am exploring two ways of making stuff: Vanilla & Point World.  We have been using mass profiles hosted on a straight-line rig, to make a parametric planting bowl, specifically the one that Wright designed for Robie House.  I want to go on and use this planter as a metaphor for Wright's creative process.  He churned out houses by the dozen, endless variations on a theme.  Most of them featured long low walls, spreading out like the roots of a tree, anchoring the house to it's site.  And to accent these garden walls, two or three strategically placed planting urns.


And just like his houses, these planters re-invent themselves with each new commission.  He couldn't stop fiddling, exploring new combinations of materials, structural gymnastics, different roof pitches.  I never thought much about the planters until I visited some of his Prairie Houses, 2 or 3 weeks ago.  Lately they have become something of a passion.



This one from the Heurtley House features a square base, then a cross, and finally a circular bowl.  These are the three motifs in the logo he used during his Oak Park period.


My third Point-World planter is from his own house & studio.  Built using a loan from Sullivan, this was his base right up to the Robie design: the family home he abandoned when he left Oak Park with Mamma Cheney.  The planters are outside the entrance to the studio, itself an addition to the original house.



Louis Sullivan was his mentor and the source of some of his design ideas, particuarly the obsession with ornamental detail which can be a little embarassing to those who like to claim him as a modernist.  But perhaps the more important skill he acquired from Sullivan was the ability to harness a team of draughtsman and drive them like a maniac towards his goals.


We idolise the creative artist, but in reality most of them ran studios.  From Brunellischi to Gehry, the "great man" produces master-works from an assembly line, often using cheap semi-volunteer labour and almost always claiming the credit (and if you are Steve Jobs, the copyright)  This is not to belittle the skill and vision of such men.  The draughtsman is always free to set up on his own, perhaps by breaking his contract, as Wright did to Sullivan when he designed his "Bootleg Houses" less than a block from his own house, while serving out the 5 years exclusive service he had contracted in return for the building loan.


There are many more Wrightian planters.  Please feel free to send me examples.  Here are a few.



Winslow House was the first of the houses Wright designed after breaking with Sullivan.  The house itself could almost have been by Sullivan, and the planter is conventionally classical.  From here on the urns become more abstracted and geometric.



But what can Vanilla do ? (the challenge in my title)  Can we achieve the same scalability using standard Family Editor geometry ?  I chose the Nathan G Moore house.


The planter may date from the renovation that followed a fire more than 20 years after the original design.  Difficult to be sure. The house itself is rather fussy and steep-pitched, not at all typical of his mature prairie style, whereas the planter is somewhat simpler.

Whereas Point World relies on the Normalised Curve Parameter (NCP) for much of its scalability, Vanilla prefers Reference Planes and equalisation constraints.


The formulae for isolating "Height" and "Slenderness" as the 2 primary user inputs are common to both methods however.


I didn't attempt a "Depth Factor" in Vanilla.  Firstly I don't think it can be done.  Secondly it's questionable how useful it is in this particular case.  To be honest the oval/oblong versions of the planter look a little odd.

So what's the verdict?  I enjoyed pitting the two worlds against each other on a similar task.  I think the Point-World approach to scaling is more elegant, but Vanilla families are more servicable at present for use in real projects.



I had to cheat a little to get the various segments defining my vanilla revolve to snap to grid intersections.  The NCP approach makes small adjustments much easier to achieve.  Equalised dimensions are a little crude in comparison.  I ought to mention that the Vanilla method makes use of the ability of splines to scale proportionately when their two ends are stretched apart.



All in all, I don't think there's a clear winner: just 2 different methods for making stuff that are worth practising and perfecting.  Sometimes one will suit your needs better, sometimes the other.  Point World can make shapes that are impossible with Vanilla.  Point World only exsists (at present) in family templates that are not ideally suited to objects like planters, furniture, or plumbing fixtures.



So "viva la difference" and keep playing with both methods.  Hope you found this useful.  And if you are a Frank Lloyd Wright fan, please don't take offence.  He was a lovable rogue, by all accounts and I prefer to love him "warts and all" rather than worship at the feet of my idol.

Thursday, July 3, 2014

ROBIE HOUSE PLANTERS

I just want to get something off my chest before I start.  I'm not setting out to make families that we can use in our day jobs.  There may well be some spin-off that we can use in fee-earning work, but what I'm doing here is pure research.  I'm reflecting on forms that Frank Lloyd Wright used, exploring abstract shape-making, reflecting on underlying meanings.

How do I justify this ?  Let me ask one question.  What is the higher priority for our species today: making more stuff (bigger,better,faster) or figuring out where we are coming from (and where we are going) ?  It worries me a little that "the factory" frames everything as a business proposition.  They are making tools for tomorrows visual thinkers.  The old fashioned business paradigm based on growth & profits is not going to solve our problems.  I don't think so.  If my grandson is going to inherit any kind of world at all we need to think outside of the business box.


In my view, tools like Revit should be designed to facilitate visual thinking in its most generalised form.  Young minds in our universities should be using them to understand the buildings and cities of the past, to explore the evolving technologies that have made those buildings possible, to envisage alternative futures.

So let's look at young Frank's frolics through the world of planters.



I travelled to Robie House on Monday.  I was deflected by Rain, which turned out to be a blessing that nudged me into the architecture foundation shop which is definitely worth a visit.  Here I bought a tree of life umbrella which in the event was never needed but became a nice present for my daughter.

Robie House is one of the icons of early modern architecture, the pinnacle of Wright's Prairie Homes period.  There is an interesting parallel with Villa Savoye by Corb.  Both have been hugely influential.  Both are extremely powerful design statements by architects of immense talent.  Both had very brief lifes as dwellings; failed in fundamental ways to deal with climate and fell into disrepair and misuse for an extended period before emerging as protected monuments hosting thousands of visitors each year.


I'm going to use a Straight Line Rig.  A vertical reference line erected at the origin, with a height parameter.  Host a point, change the value of the "Show Reference Plane" parameter to "Always" select this plane to set it as tbe current work plane.  Drag a profile in from the browser and host it on the plane.  Use groups of profiles to create forms.



The Robie House planter like the house itself takes horizontality to extremes.  I'm using the two profiles from the previous post, rectangle and ellipse, with the depth factor initially set to 1 so we have a circle and a square. It took 12 points and 14 profiles to create the solid forms (two points host both a square and a circle)  Another 3 profiles for the void cut (all circles)


Something like that anyway.  I may have lost count somewhere along the way.  There are 6 separate pieces of solid geometry: 2 square "extrusions", 2 circular "extrusions", and 2 circular lofts.  The "extrusions" are really blends, but the top & base are identical.



The depth factors are linked up to a matching parameter in the host family.  Ditto the scale.

Here's the thing.  We want the height to be able to scale independantly from the width & depth.  To put it another way we want to vary the proportions in all 3 dimensions.  So in the project we have 3 instance parameters: Height, Slenderness & Depth Factor.  A simple formula does the magic behind the scenes.



The result is a family that flexes nicely in plan & section.



Same thing in axo



So what's the point ?  Why make them parametric ? Why use point world.  Wouldn't plain old vanilla extrusions and revolves do the job?  I'll answer that last one when I get round to making a vanilla version.  I'm using Point World because it still fascinates me and I think it's important for us to keep plugging away at the relative merits of the two ways of making stuff.



As to "what's the point" ... well drawing is understanding, and it seems to me to be worthwhile to get deep inside Frank's skin.  He may have been an arrogant S.O.B. but he created some remarkable buildings.  And just to prove a point, the process of recreating these planters eventually made me look a little closer at the images I began with.  What do you know, the planter over the entrance has a different size & proportions to the ones on the street front.


Or so it seems to me.  I'm just estimating on the basis of photographs I took 8 or 9 days ago.  If I lived in Chicago I could go back with a tape measure, but this post is being finished off in an old school-friends living room in Reading, England.  Last night we played music in the garden to a small gathering of friends and neighbours. Tomorrow night I will be with my son in London, and a week from now, back home in Dubai.

More planters to follow.

Sunday, June 29, 2014

MORE MASS PROFILES

We made a circle profile, which is great, and it established the principle of a "Scale" parameter which can be linked back to the host family.  But a circle is just a special case of an ellipse.

If we make a Mass Profile which is a scalable ellipse, we can also have a "Depth Factor" to control the proportions of the ellipse.  Depth Factor of 1 will be a circle.  Here Goes.

Proceed as before to open a new Mass family.  In plan view, draw an ellipse. Dimension to the quad points of the ellipse in both directions.  They will highlight as you hover over them.

You can label these as "Width" & "Depth".  Group them under
"Other" because they will be calculated values and we want to keep them out of the way.

Create "Input" & "Scale" parameters, as before.  Scale is a type parameter and this time I'm going to group it under "Plumbing".  I know that's wierd, but it keeps it separate and just above the Dimension group which I reserve for the instance parameters.

We need one more of these.  It's a number and we can call it "Depth Factor" as mentioned above.  Type positive values into the number parameters to avoid an error message, then proceed to type in the formulae.



Save the family with a suitable name.

For the rectangle you can start again from scratch if you want, or you can save the ellipse profile with a rectangle name.  We are going to use the same parameters and formulae.  (delete the ellipse)

Set up reference planes with equalisation and apply the Width & Depth parameters.  Draw a rectangle and lock it to the planes.

That's it.



I'm going to demonstrate the use of these profiles by modelling some of the planters I saw earlier this week in Chicago.  These posts, by the way are being written from my daughter's apartment in Morristown New Jersey. I'm resting up from all the walking I did in Chicago while she finishes her working week.  Then we'll hang out for the weekend before I hop across the Atlantic to spend a week in England.

Here's a taster for the planters.