Hello all, This is probably something of an advanced question: I'm working on a building curved only in plan (extruded 12 stories high-residential) in the shape of a boomerang, or heart. I've been using circles to construct the geometry, beginning with grid's and/or reference planes/lines. Getting the tangents to line up smoothly (accurately) has been something of a challenge. I began with a 30-60-90 triangle (combine two for the rectangles seen in the attached image) At the points of the rectangle I locate the circles and then sized accordingly to intersect. THIS is where the problem begins. A 30-60-90 triangle has a hypotenuse of square root 3 which is 1.732........ about 10 decimal places, Revit only goes to 3. My point is, there seems to be slight inaccuracies caused by this rounding difference and when I go to trim sketched lines, this difference becomes apparent. Now, if I use a 3-4-5 triangle, with angles 36.86 and 53.13, I get "simpler" whole numbers that are completely accurate according to Revit. However, The 3-4-5 triangle relationship is too "squashed" of a look for this building, it needs to be closer to 30-60-90. This is the first curved project I've done and I was wondering if anyone could lend some advice or direction to topics/papers/studies, really any kind of information concerning curved geometry in revit. And/or advice on alternate ways to construct something like this that is accurate. Thanks will
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31534_RevitCitytolerances.pdf
