| volume visualization and isosurface of axisymmetric data [message #73669] |
Tue, 23 November 2010 02:42 |
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Andrea[1]
Messages: 7
Registered: November 2010
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Junior Member |
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Hi guys, I have a hydrodynamic simulation of an axisymmetric system of
gas.
Of couse the computation (I use ZEUS2D) is made in cylindrical
coordinates (R,phi,z) so, computationally speaking, the simulation is
2D, and in IDL I have a matrix, eg density[i,j] where the first index
refer to z axis and second index refer to R axis. Physically speaking
this a section of a 3D space with phi = costant, ie a meridional
plane.
Until now I made maps with contour (David Fanning will forgive me, I
saw FSC_Contour only last week!) on meridional plane, but now I should
make some 3D isosurface, but I have a 2D array, and I don't know a way
to tell to iVolume that the system is axisymmetric.
iVolume (or the counterpart in direct graphics) accept only 3D matrix
in cartesian coordinates, right? Because if iVolume accept a matrix in
cylindrical coordinates, eg [phi,z,R] instead of [x,y,z], I can build
a 3D matrix of density like this:
density3D[i,*,*]=density2D[*,*]
where i go on the phi campionation of the space.
This trick is possible or I have to move on another program, like
tecplot? I want use IDL as long as possible, since my analizing
program is written in IDL.
Thanks a lot for help.
Andrea
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