[PD] Find distance to a line in 3d space

[Py Fave]

after checking the other posts ,
i only answered partially your question .



2013/12/6 Py Fave <pyfave at gmail.com>

> check pdmtl abstractions too.
> they contain that and a lot more .
>
> check gems.* patches
>
> https://github.com/aalex/pdmtl
>
>
> 2013/12/6 tim vets <timvets at gmail.com>
>
>> [list-dotprod] from list-abs might come in handy
>>
>>
>> 2013/12/6 Claude Heiland-Allen <claude at mathr.co.uk>
>>
>>> On 05/12/13 23:40, João Pais wrote:
>>>
>>>> Hello list,
>>>>
>>>> I had a doubt, will try to explain.
>>>>
>>>> I wanted to define a line in a 3d space through 2 points, and be able to
>>>> find out the distance from another point to that line. Since I'm very
>>>> bad at math, I wanted to know if anyone has done something similar, or
>>>> knows how to get to it.
>>>>
>>>
>>> http://paulbourke.net/geometry/pointlineplane/
>>>
>>> first example on the page, you just need to clamp u to [0..1] if you
>>> want to make it work for a line segment instead of an infinite line.
>>>
>>>
>>> Claude
>>>
>>>
>>>  As I see it, the process goes this way:
>>>> - define a line from coordinates x1,y1,z1 to x2,y2,z2
>>>> - declare the point x3,y3,z3
>>>> - find the distance from that point to the nearest point belonging to
>>>> the said line
>>>>
>>>>
>>>> Any existing examples with gem rendering would be great.
>>>>
>>>> Thanks as usual,
>>>>
>>>> jmmmp
>>>>
>>>
>>> --
>>> http://mathr.co.uk
>>>
>>>
>>>
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>>
>>
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>
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