 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Given a circle with known radius, what is the length of the arc segment
formed between two radii with a known angle?
if you understand what I mean; that description feels awkward... :-/
--
Thomas
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Am 12/9/19 2:39 AM, also sprach Thomas de Groot:
> Given a circle with known radius, what is the length of the arc segment
> formed between two radii with a known angle?
>
> if you understand what I mean; that description feels awkward... :-/
>
Wouldn't it be some fractional part of the circumference?
given degrees angle a=10, angle b=100 radius r=20
length = pi*r*2*(b-a)/360
--
dik
Rendered 46,077,465,600 of 49,882,521,600 pixels (92%)
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Op 09/12/2019 om 10:49 schreef Dick Balaska:
> Am 12/9/19 2:39 AM, also sprach Thomas de Groot:
>> Given a circle with known radius, what is the length of the arc
>> segment formed between two radii with a known angle?
>>
>> if you understand what I mean; that description feels awkward... :-/
>>
>
> Wouldn't it be some fractional part of the circumference?
>
> given degrees angle a=10, angle b=100 radius r=20
>
> length = pi*r*2*(b-a)/360
>
>
I didn't think of that! Thanks!! :-)
--
Thomas
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Le 2019-12-09 à 02:39, Thomas de Groot a écrit :
> Given a circle with known radius, what is the length of the arc segment
> formed between two radii with a known angle?
>
> if you understand what I mean; that description feels awkward... :-/
>
You only need to convert that angle into radiant, then multiply by the
radius :
Just use the builtin macro :
#declare ArcLength = radians( AngleInDegree ) * Radius;
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Op 10/12/2019 om 01:04 schreef Alain Martel:
> Le 2019-12-09 à 02:39, Thomas de Groot a écrit :
>> Given a circle with known radius, what is the length of the arc
>> segment formed between two radii with a known angle?
>>
>> if you understand what I mean; that description feels awkward... :-/
>>
>
> You only need to convert that angle into radiant, then multiply by the
> radius :
>
> Just use the builtin macro :
>
> #declare ArcLength = radians( AngleInDegree ) * Radius;
>
>
Initially, I had something like that in the back of my mind but was
unable to move it to the front ;-)
Thanks indeed; I now have /two/ paths to achieve it.
--
Thomas
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Alain Martel <kua### [at] videotron ca> wrote:
> Le 2019-12-09 à 02:39, Thomas de Groot a écrit :
> > Given a circle with known radius, what is the length of the arc segment
> > formed between two radii with a known angle?
> >
> > if you understand what I mean; that description feels awkward... :-/
> >
>
> You only need to convert that angle into radiant, then multiply by the
> radius :
>
> Just use the builtin macro :
>
> #declare ArcLength = radians( AngleInDegree ) * Radius;
This is good to know!
I came across the other way on my own.
This way is shorter and less likely to have errors!
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
