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Size: 2518
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← Revision 6 as of 2014-06-06 08:31:58 ⇥
Size: 2661
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
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| tipsy2gadget in=planck.64_64.00047 out=planck.64_64.00047.g2 | tipsy2gadget planck.64_64.zoom.DM.02000 planck.64_64.zoom.DM.02000.g2 |
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| planck.64_64.00047.g2 is the gadget2 file created | planck.64_64.zoom.DM.02000.g2 is the gadget2 file created |
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| uns_info planck.64_64.00047.g2 |
ouzo:/home/jcl> uns_info planck.64_64.zoom.DM.02000.g2 |
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| File name : planck.64_64.00047.g2 | File name : planck.64_64.zoom.DM.02000.g2 |
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| Nbody selected = 262144 | Nbody selected = 673177 |
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| halo : 262144 | halo : 673177 |
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| pos [3] = -4.950922e-01 -4.887503e-01 -4.955622e-01 -4.788181e-01 -4.887079e-01 -4.943947e-01 |
pos [3] = 4.870900e+01 -4.669364e+01 4.757927e+01 -4.897452e+01 -4.635316e+01 4.848135e+01 |
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| vel [3] = -2.016661e-01 2.457134e-01 -2.518843e-01 -1.523429e-01 2.570927e-01 -1.726928e-01 |
vel [3] = -2.291998e-02 2.731730e-02 -4.330940e-02 -1.046871e-02 3.446640e-02 -3.198051e-02 |
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| glnemo2 planck.64_64.00047.g2 | glnemo2 planck.64_64.zoom.DM.02000.g2 {{attachment:glnemo2_dm.png}} |
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| uns_density planck.64_64.00047.g2 planck.64_64.00047.g2.dens halo | uns_density planck.64_64.zoom.DM.02000.g2 planck.64_64.zoom.DM.02000.g2.dens halo |
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{{attachment:glnemo2_dm_dens.png}} |
How to visualize a tipsy file with glnemo2
Convert to gadget2 file format using '''tipsy2gadget''' program
So far glnemo2 does not support natively tipsy file format, therefore you have to convert it in a known file format like gadget2
tipsy2gadget in=??? out=??? scale=100 tipsy2gadget help=h in : tipsy input file [???] out : gadget2 output file) [???] scale : scaling factor (pos,hsml) [100]
example :
tipsy2gadget planck.64_64.zoom.DM.02000 planck.64_64.zoom.DM.02000.g2
planck.64_64.zoom.DM.02000.g2 is the gadget2 file created
get some info from gadget file using '''uns_info''' program
ouzo:/home/jcl> uns_info planck.64_64.zoom.DM.02000.g2
**************************************************
File name : planck.64_64.zoom.DM.02000.g2
File type : Gadget2
Nbody selected = 673177
Time=0
==================================================
halo : 673177
mass[1] = 1.211165e-06 1.211165e-06 1.211165e-06
1.211165e-06 1.211165e-06 1.211165e-06
. . .
pos [3] = 4.870900e+01 -4.669364e+01 4.757927e+01
-4.897452e+01 -4.635316e+01 4.848135e+01
. . .
vel [3] = -2.291998e-02 2.731730e-02 -4.330940e-02
-1.046871e-02 3.446640e-02 -3.198051e-02
. . .
id [1] = 0 1 2
3 4 5
. . .We can see that there is only one component here : dark matter halo
- Visualize gadget file with glnemo2
glnemo2 planck.64_64.zoom.DM.02000.g2
Compute the density with '''uns_density''' program
uns_density help=h in : UNS input file (gadget|nemo) [???] out : output file [???] select : component selected (disk,stars,halo,gas,range) [???] m : 0: Ferrers method, 1:hackdens method [0] K : number of neighbours [32] N : order of Ferrers kernel [1] ncrit : ncrit value, if empty=max(1,K/4) [] time : selected time [all] first : add a trailing numbering to the first output file [f] offset : +/- time offset [0.01]
uns_density planck.64_64.zoom.DM.02000.g2 planck.64_64.zoom.DM.02000.g2.dens halo
We compute density on halo component
- visualize with glnemo2
