![]() In doing so we have specialized for over 20 years in researching innovative materials and developing unique technological and creative solutions. Whether in large-scale production, for an individual project, or for a single umbrella: From development to production and all the way to installation we remain flexible in responding to the wishes of our customers and quickly turn them into reality at one of our sites worldwide Every day, at many international events and in many public spaces, our umbrellas and sail designs, winners of numerous awards, are proof that aesthetic shapes create genuine added value. It is the meeting point of technical expertise and aesthetic perception. I thank in advance everybody that has time and willing to reply.Our shading systems – the encounter of beautiful shapes with perfect functionalityįor us, textile architecture is much more than manufacturing highly sophisticated sun protection systems and high-quality umbrellas. Of course, to compute a sundial is required a greater precision than the precision required for a simple buildings solar illumination study. The current discrepancy, I believe, are mainly due to the greater precision of my algorithm with respect the AutoCad one. If I could know the algorithm used by AutoCad I could to adapt my sundials calculator algorithm in a such way to get perfect simulations. Which other astronomical parameters are considered by AutoCad in order of improve the accuracy? How AutoCad takes into account of the equation of time and of the seasonal sun declination? Does somebody know how AutoCad computes the elevation and azimuth angles? Does somebody know whether and how it's possible to use more decimal digits to define the latitude and the longitude? I have also noticed that to define the longitude and the latitude are used only three digits after the decimal point. These discrepancies, very likely, are due to an insufficient precision of the algorithm used to compute the elevation and azimuth angles inside AutoCad. In some preliminary experiment I have noticed some slight discrepanncy between the position of the shadow casted by the virtual sun of AutoCad and the theoretical position indicated by my computations (of which correctness I'm sure because proven in the field). To design my sundial I will use AutoCad so I can see how it appears when illuminated by the virtual sun (command _lights Sun Angle Calculator) and rendering. a clock working through the sun casting a shadow). I'm an italian professionist and I'm going to design a sundial (i.e. ![]()
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