On 2/16/2015 4:45 PM, Le_Forgeron wrote:
> Le 16/02/2015 06:27, Mike Horvath a écrit :
>> On 2/15/2015 12:26 PM, Christian Froeschlin wrote:
>>> On 15.02.2015 4:11, Mike Horvath wrote:
>>>
>>>> Sorry, "caternaroid" is not the name of the shape I'm looking for. Does
>>>> anyone know how to create a formula for a shape similar to a paraboloid
>>>> but with a catenary cross-section? Thanks.
>>>
>>> If you're ok to approximate with a spline you could create
>>> an "sor" object from a catenary.
>>>
>>
>> I'd rather not. The shape is going to be large, prominent and reflective
>> in my scene, so I want it to look right.
>
> and why does it have to be a revolving-catenary ?
> Cannot it be approximated by a paraboloid ?
>


It's intended for the nose cone of my spaceship. All the pressure is 
supported at the "base" of the cone, so the caternary is the correct 
shape. On the other hand, Wikipedia says the caternary requires calculus 
to model. I'd rather not mess with any of that.

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