[R] can we visualize water flows with 3d in R?

[clark richards]

Hi Marna,

It's hard to tell exactly what you're looking for, since making "3D" plots
of fluid flow has significant interpretative challenges (e.g. how do you
see the flow for points that are "inside" the domain?). It is common in
fields like oceanography to plot 2D "sections" of the 3D flow -- e.g. a
latitude-depth plot at a range of different longitudes. Someone else
pointed out the `heatmap()` function, but I would also point out the
`imagep()` function in the `oce` package, which can make image plots (with
a palette, or colorbar).

Cheers,
Clark

On Wed, Oct 12, 2016 at 7:00 AM, <r-help-request at r-project.org> wrote:

>
> Message: 18
> Date: Wed, 12 Oct 2016 01:49:28 -0700
> From: Marna Wagley <marna.wagley at gmail.com>
> To: r-help mailing list <r-help at r-project.org>
> Subject: [R] can we visualize water flows with 3d in R?
> Message-ID:
>         <CAMwU6B30hE4z-bORjGBgcmZNZjc9_4Q8ZUgQNhZ3SFoTc+ss=Q at mail.
> gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Hi R Users,
> Is it possible to visualize river flow in  3D (latitude, longitude with
> respect to depth)?
> The example of my data looks like. Any suggestions?
>
> > dat1
>     long lat depth flow
> 1 1015.9 857  1.00 1.50
> 2 1015.9 857  1.25 1.23
> 3 1015.9 857  0.50 2.00
> 4 1015.9 858  0.10 1.95
> 5 1015.9 858  0.20 1.50
> 6 1025.0 858  0.30 1.20
> 7 1025.0 858  0.40 0.50
> 8 1025.0 858  0.35 0.70
> 9 1025.0 858  0.24 1.20
>
> Thanks for your help.
> thanks
>
>         [[alternative HTML version deleted]]
>
>
>
> ------------------------------
>
> Message: 19
> Date: Wed, 12 Oct 2016 20:49:27 +1100
> From: Jim Lemon <drjimlemon at gmail.com>
> To: Marna Wagley <marna.wagley at gmail.com>
> Cc: r-help mailing list <r-help at r-project.org>
> Subject: Re: [R] can we visualize water flows with 3d in R?
> Message-ID:
>         <CA+8X3fVMGZcQZg60T6DizcVdHh-H7_nSX5orpC-W0tGc-osgTQ at mail.
> gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> Hi Marna,
> Isn't the conventional way to visualize depth as shades of blue?
>
> library(plotrix)
> depth.col<-color.scale(dat1$depth,extremes=c("lightblue",blue"))
>
> Then color the lon/lat rectangles with depth.col
>
> Jim
>
>
>
> On Wed, Oct 12, 2016 at 7:49 PM, Marna Wagley <marna.wagley at gmail.com>
> wrote:
> > Hi R Users,
> > Is it possible to visualize river flow in  3D (latitude, longitude with
> > respect to depth)?
> > The example of my data looks like. Any suggestions?
> >
> >> dat1
> >     long lat depth flow
> > 1 1015.9 857  1.00 1.50
> > 2 1015.9 857  1.25 1.23
> > 3 1015.9 857  0.50 2.00
> > 4 1015.9 858  0.10 1.95
> > 5 1015.9 858  0.20 1.50
> > 6 1025.0 858  0.30 1.20
> > 7 1025.0 858  0.40 0.50
> > 8 1025.0 858  0.35 0.70
> > 9 1025.0 858  0.24 1.20
> >
> > Thanks for your help.
> > thanks
> >
> >         [[alternative HTML version deleted]]
> >
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