plot points??

 
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easylin



Joined: 30 Nov 2007
Posts: 2

PostPosted: Sat Dec 01, 2007 9:55 am    Post subject: plot points?? Reply with quote

hi.

can K3DSurf only plot explicit function?
can K3DSurf plot also scattered points data?

if I have input data like
# x y z value
1 1 1 1
1 2 2 1
...
...

thanks for your replies. Smile
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nextstep
Site Admin


Joined: 06 Jan 2007
Posts: 538

PostPosted: Sat Dec 01, 2007 1:37 pm    Post subject: Reply with quote

Hi easylin,
Quote:
can K3DSurf only plot explicit function?

K3DSurf can also plot implicit function (ie: f(x,y,z) = 0) which are more powerful than the explicit one Smile . I'm not sure if that respond to your question, if not give me an example of function that you want to test with K3DSurf.
Quote:
can K3DSurf plot also scattered points data?

Right now, K3DSurf can only draw a filled surface or a mesh of lines. It's quite easy to implement this feature so I'll probably add it in the next release Smile . Unfortunately, K3DSurf use only mathematical function as "input data" so to draw a set of data points defined by there 3D coordinates, you probably need a scientific program like GnuPlot , labplot or Qtiplot.
Hope this can help.
_________________
Cheers,
Abderrahman
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easylin



Joined: 30 Nov 2007
Posts: 2

PostPosted: Sat Dec 01, 2007 3:01 pm    Post subject: Reply with quote

thanks Laughing
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Phil999



Joined: 08 Feb 2007
Posts: 24

PostPosted: Tue Dec 04, 2007 1:16 am    Post subject: Reply with quote

thanks also. Smile
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Edú



Joined: 05 May 2008
Posts: 5

PostPosted: Fri May 09, 2008 3:11 pm    Post subject: Reply with quote

Very Happy Excuse me, can i help you? i´m mathematic and like very much of K3Dsurf, i think that dont need wait a new version of K3dsurf for draw points, really a Point dont have size, we can draw "points" thinking that are spheres with very little radio, using iso surface. For example try:
((x-1)^2+(y-1)^2+(z-1)^2-0.003)*(x+y+z)
are one "point", and one plane. (only will be have careful with intervals of of definition of x,y,z all between (-2, 2) and work with good grid resolution)
(congratulations people of K3dsurf!)
Edú
(can I make to surfaces particular movements of morphings?)
(sorry because my english in not good enougth) Very Happy
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