Some pictures of 3D representations by K3DSurf 0.62
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abdelhamid belaid



Joined: 13 Aug 2009
Posts: 170

PostPosted: Sat Aug 15, 2009 11:16 pm    Post subject: Some pictures of 3D representations by K3DSurf 0.62 Reply with quote

Hi all,
This is my flickr page,I hope you like it:
http://www.flickr.com/photos/43056454@N04/sets/72157622368691449/show/

http://www.flickr.com/photos/43056454@N04/sets/72157622368691449/


Last edited by abdelhamid belaid on Mon Nov 07, 2011 11:30 am; edited 11 times in total
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jotero



Joined: 27 Jan 2007
Posts: 153
Location: Germany Hannover

PostPosted: Mon Aug 17, 2009 5:24 am    Post subject: Reply with quote

hello all Smile

hi abdelhamid,

very interesting work from you! You are welcome Smile

ciao
torolf
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nextstep
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Joined: 06 Jan 2007
Posts: 538

PostPosted: Wed Aug 19, 2009 8:14 pm    Post subject: Reply with quote

Hi all;
Welcome Abdelhamid and keep up the good work Cool
Sorry for my late response.
I was also impressed by the work of Abdelhamid he sent me by email and asked him to subscribe in the forum to share it with others.
You can use the language of your choice Abdelhamid and I'll try to translate if you choose the Arabic Smile
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Abderrahman
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inode



Joined: 27 Jan 2007
Posts: 127
Location: Austria

PostPosted: Thu Oct 22, 2009 11:43 am    Post subject: Reply with quote

Hi abdelhamid

As I see your surface collection is growing and growing...
Really nice work!

The 2 helix surfaces are some basics.
Please can you publish the formulars of this Helix and the Double Helix.
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abdelhamid belaid



Joined: 13 Aug 2009
Posts: 170

PostPosted: Thu Oct 22, 2009 6:29 pm    Post subject: The Helix Reply with quote

hi all , hi my friend inode Smile
the Helix :
Code:
F(x,y,z)=(sqrt(x^2+y^2)-3)^2 +(atan2((y*cos(2*z)-x*sin(2*z)),(x*cos(2*z)+y*sin(2*z)))/2 )^2 -1
x:[-4,4] and y:[-4,4] and z:[-6,6]

the Double Helix :
Code:
F(x,y,z)=(sqrt(x^2+y^2) - 3)^2+ ( atan((y*cos(z)-x*sin(z))/(x*cos(z)+y*sin(z))) )^2 -1
x:[-4,4] and y:[-4,4] and z:[-6,6]

Generally
u = x * cos (n * z) + y * sin (n * z) and v = y * cos (n * z)-x * sin (n * z)
and
(sqrt (x^ 2 + y^ 2)-a) ^ 2 + (atan2 (v, u)/n) ^ 2-R ^ 2 = 0
a, n : real numbers
More generally Writing :
f( sqrt (x^ 2 + y^ 2)-a , atan2(v,u)/n )=0
For example :
abs( sqrt(x^2+y^2)-a )+abs( atan2(v,u)/n )-b=0 or
( (sqrt(x^2+y^2)-a)/b )^100+( atan2(v,u)/(n*b) )^100-1=0 .....Etc


Last edited by abdelhamid belaid on Mon May 03, 2010 10:06 pm; edited 6 times in total
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abdelhamid belaid



Joined: 13 Aug 2009
Posts: 170

PostPosted: Mon Mar 15, 2010 8:57 pm    Post subject: Reply with quote

Hello my dear friends Smile
I hope you like:




Last edited by abdelhamid belaid on Thu Mar 31, 2011 1:39 am; edited 4 times in total
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nextstep
Site Admin


Joined: 06 Jan 2007
Posts: 538

PostPosted: Wed Mar 17, 2010 8:40 am    Post subject: Reply with quote

Hi Abdelhamid,
That's a wonderful structure and you are a master of the CSG (Constructive Solid Geometry) Cool . For those who don't know it, Abdelhamid has a lot of great realisation with K3DSurf and a solid background in mathematics (university degree). We hope you all the best in your carrier and thank you again or sharing with us some of your work. Smile
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Abderrahman
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abdelhamid belaid



Joined: 13 Aug 2009
Posts: 170

PostPosted: Sat Mar 20, 2010 5:29 pm    Post subject: Reply with quote

hi all Smile

Sometimes I can not believe myself:







I would say k3dsurf is not just a computer program and is not just for drawing but it is a new part of mathematics, it is amazing thank you very much Taha.



Last edited by abdelhamid belaid on Sun May 19, 2013 4:15 pm; edited 4 times in total
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abdelhamid belaid



Joined: 13 Aug 2009
Posts: 170

PostPosted: Tue Mar 23, 2010 5:21 pm    Post subject: Reply with quote

hi all Smile






Last edited by abdelhamid belaid on Sun May 19, 2013 4:16 pm; edited 2 times in total
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abdelhamid belaid



Joined: 13 Aug 2009
Posts: 170

PostPosted: Thu Mar 25, 2010 11:44 am    Post subject: Reply with quote

hi all,
a gesture to nature with k3DSurf...





Last edited by abdelhamid belaid on Sun May 19, 2013 4:22 pm; edited 2 times in total
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nextstep
Site Admin


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Posts: 538

PostPosted: Fri Mar 26, 2010 7:09 pm    Post subject: Reply with quote

Hi abdelhamid,
That's a very original and exciting idea: a "dead nature" 3D painting with K3DSurf Smile . It still need only some good apples to make it real...
Here is a good starting point for an apple looking isosurface (still need some work on the shape and the leaf )

Quote:

Name: IsoApple
F(): (sqrt((x*x+y*y)/((z+6)/5))-1.3)^2 + z*z/4 -1.7
[x]: -3 , 3
[y]: -3 , 3
[z]: -3 , 3
;


Keep up the good work Cool
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Abderrahman
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abdelhamid belaid



Joined: 13 Aug 2009
Posts: 170

PostPosted: Sun Mar 28, 2010 2:59 pm    Post subject: Reply with quote

Hi all, and thank you Taha Smile
just a bush Very Happy



Last edited by abdelhamid belaid on Sun May 19, 2013 4:23 pm; edited 5 times in total
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abdelhamid belaid



Joined: 13 Aug 2009
Posts: 170

PostPosted: Mon Mar 29, 2010 10:41 am    Post subject: Reply with quote

hi all,
I think this is the best Wink




Last edited by abdelhamid belaid on Sun May 19, 2013 4:24 pm; edited 2 times in total
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abdelhamid belaid



Joined: 13 Aug 2009
Posts: 170

PostPosted: Thu Apr 01, 2010 10:17 pm    Post subject: Reply with quote

hi all Smile
Hunting is not allowed of course Wink





Last edited by abdelhamid belaid on Fri Apr 15, 2011 10:41 am; edited 2 times in total
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nextstep
Site Admin


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Posts: 538

PostPosted: Fri Apr 02, 2010 7:37 am    Post subject: Reply with quote

Hi Abdelhamid,
Congratulation Abdelhamid, your work is really stunning Cool
You've already the building blocks for much more complicated mathematical scene and we are eager to see what's next .
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Abderrahman
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