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nextstep
Site Admin
Joined: 06 Jan 2007
Posts: 539
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 Posted: Tue Jan 01, 2013 1:28 am Post subject: Happy new year 2013 |
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Hi all,
Happy new year 2013 to all of you. K3DSurf is now working under Qt4 but some features are still missing...so patience 
First screenshot of the MathMod project:
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Cheers,
Abderrahman |
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inode
Joined: 27 Jan 2007
Posts: 127
Location: Austria
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| Posted: Sun Jan 06, 2013 12:16 pm Post subject: |
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Hi Taha
Oh that's a suprise that you continue working on K3DSurf.
If there is a beta version for testing, please let me know it.
Hopefully you do NOT rename K3dSurf to MathMod. This name is still used for other projects and I like K3dSurf as an unambiguous name.
wish all of you also a successful year 2013 
ps. May I propose some changes for the next release?
- can you add an undo-function when pressing the Clear button.
- there should be much more space for displaying the dropdown list for the example name selection, because it is also used to select loaded example names.
- Automatic loading of ALL configuration values and a default button for reseting all values. |
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jotero
Joined: 27 Jan 2007
Posts: 153
Location: Germany Hannover
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| Posted: Wed Jan 09, 2013 1:16 pm Post subject: |
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Hi all,
Happy new year 2013
interesting Taha. I'm looking forward to the new version of the software.
ciao
torolf
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abdelhamid belaid
Joined: 13 Aug 2009
Posts: 170
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| Posted: Wed Jan 16, 2013 9:55 am Post subject: |
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Happy new year 2013
great Taha.
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Last edited by abdelhamid belaid on Mon Mar 18, 2013 6:19 am; edited 1 time in total |
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Furan
Joined: 05 Oct 2010
Posts: 64
Location: Prague, Czech Republic
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| Posted: Fri Feb 15, 2013 7:13 pm Post subject: New Year's Object |
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There is no recent topic on parametric surfaces, so for a good start you can try the Trifold Knot. I suggest you try different crossection, inner twist etc. by adjusting functions xp, yp, zp.
Parametric curve:
| Code: | x=2*sin(t)+4*sin(2*t)
y=2*cos(t)-4*cos(2*t)
z=-2*sin(3*t)
t=0..2*pi
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Parametric surface:
Tangent vector u; orthogonal vectors v= u x [0 0 1]; w= u x v
Two parameters: u (rotation along main axis), v (rotation along the knot curve)
| Code: | u1(u)=2*cos(u)+8*cos(2*u)
u2(u)=-2*sin(u)+8*sin(2*u)
u3(u)=-6*cos(3*u)
v1(u)=u2(u)
v2(u)=-u1(u)
v3(u)=0
w1(u)=-12*cos(3*u)*(cos(u)+4*cos(2*u))
w2(u)=12*cos(3*u)*(sin(u)-4*sin(2*u))
w3(u)=-68-32*cos(3*u)
normv(u)=sqrt(32*cos(3*u)+68)
normw(u)=sqrt(8)*sqrt(795+36*cos(9*u)+217*cos(6*u)+652*cos(3*u))
xp(u,v)=v1(u)*cos(v)/normv(u)+w1(u)*sin(v)/normw(u)
yp(u,v)=v2(u)*cos(v)/normv(u)+w2(u)*sin(v)/normw(u)
zp(u,v)=w3(u)*sin(v)/normw(u)
x=2*sin(u)+4*sin(2*u)+xp(u,v)
y=2*cos(u)-4*cos(2*u)+yp(u,v)
z=-2*sin(3*u)+zp(u,v)
u=0..2*pi
v=0..2*pi
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jotero
Joined: 27 Jan 2007
Posts: 153
Location: Germany Hannover
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| Posted: Tue Jun 04, 2013 12:40 pm Post subject: |
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Dear Taha, there is something new from your MathMod project
cu
Torolf
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