#7850: spherical plot
---------------------------+------------------------------------------------
   Reporter:  olazo        |       Owner:  was           
       Type:  enhancement  |      Status:  needs_review  
   Priority:  minor        |   Milestone:                
  Component:  graphics     |    Keywords:  spherical,plot
Work_issues:               |      Author:  olazo         
   Upstream:  N/A          |    Reviewer:                
     Merged:               |  
---------------------------+------------------------------------------------
Changes (by olazo):

  * status:  new => needs_review


Old description:

> I've made a clone of Mathematicas SphericalPlot3d . Only that the 3d
> seemed redundant to me.
>
> The code is
> {{{
> var('phi,theta')
> def spherical_plot(f,phiran=(phi,0,2*pi),thetaran=(theta,0,pi),**kwds):
>    phi=phiran[0]
>    phi0=phiran[1]
>    phif=phiran[2]
>    theta=thetaran[0]
>    theta0=thetaran[1]
>    thetaf=thetaran[2]
>    Rho=(f*cos(phi)*sin(theta),f*sin(phi)*sin(theta),f*cos(theta))
>    return
> parametric_plot3d(Rho,(phi,phi0,phif),(theta,theta0,thetaf),**kwds)
> }}}
>
> Several examples can be found in [http://www.sagenb.org/pub/1319/]
>
> I've been suggested to eliminate the dependence on the 'phi' and 'theta'
> variables. I quite agree that that would be good, but I can't figure how
> to do it.
>
> Also, I think I might generalize this into any sort of transform plot.
> But let's first see how this works out. Especially the variable
> dependency

New description:

 I've made a clone of Mathematicas SphericalPlot3d . Only that the 3d
 seemed redundant to me.

 The code is
 {{{
 def spherical_plot(f,phiran,thetaran,**kwds):
    phi=phiran[0]
    theta=thetaran[0]
    R=(f*cos(phi)*sin(theta),f*sin(phi)*sin(theta),f*cos(theta))
    return parametric_plot3d(R,phiran,thetaran,**kwds)
 }}}

 Several examples can be found in [http://www.sagenb.org/pub/1319/]

 For simplicity's sake I have not added default values for the ploting
 domain, that tends to produce undesired results.

--

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7850#comment:3>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB
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