 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
I want to make a pipe with any number of points, say starting point then more
than one points. These points are having different radiuses i.e. inner radius
and outer radius. I just make a macro for it with only two points.
#include "functions.inc"
#include "textures.inc"
#include "colors.inc"
camera { location <0, 400, 400> look_at <0, 0, 0> angle 15}
light_source {<10,60,-10> colour rgb 1}
light_source {<10,60,10> colour rgb 1}
light_source {<10,-60,-10> colour rgb 1}
light_source {<-10,-60,10> colour rgb 1}
#macro Pipe(p1, p2, r1, r2, r3, r4)
difference
{
cone {p1, r1, p2, r3 hollow on}
cone {p1, r2, p2, r4 } hollow off
texture{ pigment{ rgb 0.9}}
}
#end
object{
Pipe(<0, 0, 0>, <0, 30, 0>, 20, 10, 40, 20)
hollow on
}
As we know the inner part of pipe is hollow but I'm not able to make this pipe
hollow. Whats wrong in it?
Also how I modify this macro so that I can make a long pipe with different
points i.e. more that two points for it( may be with different radiuses ).
Waiting for reply.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Le 30/07/2015 05:36, bakom a écrit :
> I want to make a pipe with any number of points, say starting point then more
> than one points. These points are having different radiuses i.e. inner radius
> and outer radius. I just make a macro for it with only two points.
>
> #include "functions.inc"
> #include "textures.inc"
> #include "colors.inc"
>
> camera { location <0, 400, 400> look_at <0, 0, 0> angle 15}
>
> light_source {<10,60,-10> colour rgb 1}
> light_source {<10,60,10> colour rgb 1}
> light_source {<10,-60,-10> colour rgb 1}
> light_source {<-10,-60,10> colour rgb 1}
>
> #macro Pipe(p1, p2, r1, r2, r3, r4)
> difference
> {
> cone {p1, r1, p2, r3 hollow on}
> cone {p1, r2, p2, r4 } hollow off
> texture{ pigment{ rgb 0.9}}
> }
> #end
>
> object{
> Pipe(<0, 0, 0>, <0, 30, 0>, 20, 10, 40, 20)
> hollow on
> }
>
>
> As we know the inner part of pipe is hollow but I'm not able to make this pipe
> hollow. Whats wrong in it?
> Also how I modify this macro so that I can make a long pipe with different
> points i.e. more that two points for it( may be with different radiuses ).
> Waiting for reply.
>
Hollow is related to media, in your situation it is useless so far.
you also have a problem of coincident surface, which might still show
the cap of the first cone. I would suggest using the "open" modifier on
the first cone, but then there would be no cap at all for the
difference. So that's not the solution.
Do you have to "see" the inside ? If not, you should have a look at
sphere_sweep object (cut with some rotated box at each end, so still a
difference)
If yes, a difference of sphere_sweep and 2 rotated box (one at each end)
would be my easy to write solution (it might crawl to render), passing
the points and radius as either arrays (vector can be 5D, so you are
fine with a single arrays of vector), or as a spline (but that would be
with my own derivative of povray or megapov, so as to get access to the
spline definition points inside the macro)
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On 2015-07-29 11:36 PM (-4), bakom wrote:
> #macro Pipe(p1, p2, r1, r2, r3, r4)
> difference
> {
> cone {p1, r1, p2, r3 hollow on}
> cone {p1, r2, p2, r4 } hollow off
> texture{ pigment{ rgb 0.9}}
> }
> #end
First of all, the hollow keyword is totally irrelevant to your problem.
The hollow keyword is for allowing media inside transparent objects,
not for making hollow shapes.
At first glance, it appears your problem is coincident surfaces. The
ends of the inner pipe are in exactly the same planes as the ends of the
outer pipe.
http://wiki.povray.org/content/Documentation:Tutorial_Section_2.1#Co-incident_Surfaces
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On 2015-07-30 01:19 AM (-4), Cousin Ricky wrote:
> At first glance, it appears your problem is coincident surfaces. The
> ends of the inner pipe are in exactly the same planes as the ends of the
> outer pipe.
That should read inner CONE and outer CONE. (I shouldn't be responding
to questions after being awakened from a sound sleep.)
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> Also how I modify this macro so that I can make a long pipe with different
> points i.e. more that two points for it( may be with different radiuses ).
> Waiting for reply.
You may be interested in:
http://www.oyonale.com/modeles.php?lang=en&page=20
Best regards,
Michael
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Cousin Ricky <ric### [at] yahoo com> wrote:
> On 2015-07-29 11:36 PM (-4), bakom wrote:
> > #macro Pipe(p1, p2, r1, r2, r3, r4)
> > difference
> > {
> > cone {p1, r1, p2, r3 hollow on}
> > cone {p1, r2, p2, r4 } hollow off
> > texture{ pigment{ rgb 0.9}}
> > }
> > #end
>
> First of all, the hollow keyword is totally irrelevant to your problem.
> The hollow keyword is for allowing media inside transparent objects,
> not for making hollow shapes.
>
> At first glance, it appears your problem is coincident surfaces. The
> ends of the inner pipe are in exactly the same planes as the ends of the
> outer pipe.
>
>
http://wiki.povray.org/content/Documentation:Tutorial_Section_2.1#Co-incident_Surfaces
Thanks for reply also to Le Forgeron.
Ok, so can you please rewrite or gave me a macro for it?
--
Gurwinder Singh
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
|
|
