Want to create arc - but not inferenced off the midpoint
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Hello All,
I want to create an arc based off of line A-B. It seems the arc tool always inferences the midpoint of the line. That's where the "fattest" part of the arc is centered. What if I want the fattest part of the arc to be at 40% from A to B? -
Use the Icon Arc by 3 Points ?
But as it's an arc circle middle will be always the "top" between A & B!
That's normal geometry!
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Hello Pilou, Thanks for your response! I am an amateur boatbuilder. One boat I built was a Norse Pram. It is a curvy little thing. The widest part of the boat is 40% from the endpoints. To achieve this shape, each plank (known as strakes) of the boat is also widest at a point 40% from the endpoints. So when you put all the planks together, it makes sense that the shape of the boat, in some sense, mimics the cumulative shapes of the planks. To achieve an outline for these planks, you use a very flexible strip of wood (batten), anchor the endpoints on the centerline, and pull it it outward from the centerline at the "40%" mark.
So, this physical means of making this sort of shape is entirely analogous to how it might be done in sketchup, using the arc tool. However, as I mentioned and as you demonstrated, the arc tool always seems to inference the midpoint. Can I force the arc tool to inference the 40% mark? I would love to better use Sketchup in real boat design, to design and print real templates for the boat planks. If it doesn't already exist - I would think that some smart extension developer could do this! Salut!
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Hey Box, That is exactly what I am looking for!! Thanks so much - I'll get that extension and try it out. Sounds really promising for my needs!!
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Box, Mesmerized by your .skp vid - PERFECT! The exact answer to my issue. Cheers!
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If you find that one mesmerizing try this one.......
....now follow my instructions -
Sure that you want is not a pure arc circle!
You can try the other Bezier's Splines icons!
And another time the golden rule to put an image as soons the first post is necessary!
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What Pilou is trying to say is that the curve you want is not an arc. By definition, an arc is part of the circumference of a circle. Your pram's curves are not arcs.
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so funny !
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