computer-assisted design

Playing by Rules
The most important skill needed by any designer is the ability to communicate clearly. This skill takes many forms, from verbal descriptions, well-assembled photographs and material samples to graphical depictions of concepts, details, dimensioned layouts and other drawn elements.  When a watershaper is pushing design limits, in fact, he or she is often called upon to use all of these communication tools to convey ideas and aspire to offer something unique. In recent years, computer-aided design (CAD) systems have become increasingly popular as a tool in preparing construction drawings.  Combined with the designer's creativity, these programs assist greatly in the production of plans.  Unfortunately, however, our usage of them varies greatly in style and content from project to project and designer to designer.  Indeed, these variations can be so radical that some plans are not easily understood by other professionals; moreover, the exchange of electronic CAD files is not always as convenient or efficient as it should be. This is why a group of industry experts has banded together to create the National CAD Standard (NCS), which is the core subject of this brief series of articles.  That effort, which has met
A New Dimension
There are some things that are better seen than described. In the case of pool and spa equipment, for example, there are situations in which manufacturer instructions or two-dimensional plan drawings simply do not give the installer all the information needed to get things right the first time.  As a result - and as everyone who installs equipment sets knows - the plumbing and layout of the equipment usually requires some level of on-site improvisation. In our work of designing hydraulic systems for complex watershapes - everything from commercial pool facilities to interactive waterfeatures and fountains - we've seen the need to find a way to specify precisely how we want our equipment sets to be installed.  No two-dimensional plumbing schematic or manufacturer-supplied manual does that part of the job.  That is, they do not completely delineate the way
Technical Daring
As watershape designs become increasingly creative and complex, the demand for more precise methods of engineering their structures has grown as well.  To meet that need, observe Ron Lacher and Aaron Cowen of Pool Engineering, experts like them are turning to advanced three-dimensional modeling technology - systems so sophisticated that they make it possible to develop plans for daring projects such as they one they describe here.      It's easily the most sophisticated watershape structure we've ever engineered. The pool/spa combination, not yet built, will rise some 50 feet above grade on a cliff behind a home in the densely populated Hollywood Hills near downtown Los Angeles.  As conceived, the vanishing-edge pool will sit a full ten feet below the spa in a complex monolithic structure.  Supporting the entire affair will be
Precision Planning
As the fields of landscape architecture and watershaping intermingle, the knowledge bases for each trade increasingly need to be shared across various design, engineering and construction disciplines.   That sharing, unfortunately, has been relatively slow to develop, which means that, as a designer and builder and of custom high-end watershape and landscape projects, I am often frustrated by the lack of detail I find in plans and specifications generated on all levels of the trade.  Although this deficiency flows freely from all sectors, the most frequent sources of inadequacy in watershape plans are landscape architects and designers, too many of whom offer information that is disturbingly vague and thoroughly lacking in detail.   We've all seen the blue patch on the overhead plan view - a grossly inadequate delineation of a significant design component if ever there was one.  Contractors presented with such documentation are left to define specific details themselves and essentially are asked to build some version of that blue patch as they
21st-Century Drafting
As watershapers, we can look at the rest of the architectural world and see that every other genre is benefiting more than we are from computers. Bridge builders and skyscraper architects use computers to do everything from the simulated testing of three-dimensional structural models to the generation of detailed blueprints to be used on site.  Even the designers of modest housing developments are now using computers to conduct 3-D virtual tours for prospective homebuyers and in specifying floor plans and