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Re: Gridding Wizard preview [message #71535]

Mon, 28 June 2010 12:56

penteado
Messages: 866
Registered: February 2018

Senior Member
Administrator

On Jun 28, 4:19 pm, Ally <ally.desh...@gmail.com> wrote:
> I want it to look exactly like the preview. My points are pretty
> densely distributed so there's a clump but when I plot in in iplot it
> is just a line and when I plot it in icontour it looks nothing like
> the preview. And neither iplot no icontour plot it in color. How do
> I fix this?

If they are dense enough, an iimage will look about the same. To make
the iplot with the colors given by the value at each point, use
something like

iplot,x,y,vert_colors=bytscl(z),/
scatter,sym_index=6,sym_thick=2.,rgb_table=rgb_table

where rgb_table is either the colortable number (if one of the default
tables), or the table itself (a [3,256] or a [256,3] byte array). The
one used in the gridding wizard is the rainbow table (13), not a good
one.

Colors for contours are specified in a similar way:

zmin=min(z,max=zmax)
nl=10
values=zmin+(zmax-zmin)*dindgen(nl)/(nl-1d0)
colors=dindgen(nl)*255/(nl-1d0)
icontour,n_levels=nl,c_value=values,rgb_indices=colors,rgb_t able=rgb_table

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[Message index]

		Re: Gridding Wizard preview By: penteado on Mon, 28 June 2010 12:56
		Re: Gridding Wizard preview By: Ally on Mon, 28 June 2010 12:19
		Re: Gridding Wizard preview By: penteado on Mon, 28 June 2010 08:30

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