[R] 3D plot with coordinates
Duncan Murdoch
murdoch.duncan at gmail.com
Thu Jun 22 11:27:23 CEST 2017
On 22/06/2017 3:15 AM, Alaios wrote:
> Thanks. So after searching 4 hours last night it looks like that there
> is no R package that can do this right now. Any other ideas or
> suggestions might be helpful.
I don't know what you want the display to look like, but if you want it
to be rotatable, rgl is probably the right package to use.
It doesn't directly support the coordinate system you're using, so you
need to figure out where you want your points (or line segments) plotted
in Euclidean coordinates, and write your own function to plot those.
For example, to plot (r, theta) in polar coordinates in the XY plane,
use (x = r*cos(theta), y = r*sin(theta), z = 0).
Duncan Murdoch
> Regards
> Alex
>
>
> On Wednesday, June 21, 2017 3:21 PM, Alaios via R-help
> <r-help at r-project.org> wrote:
>
>
> Thanks Duncan for the replyI can not suppress anything these are
> radiation pattern measurements that are typically are taken at X,Y and Z
> planes. See an example here, where I want to plot the measurements for
> the red, green and blue planes (so the image below withouth the 3d green
> structure
> inside)https://www.researchgate.net/publication/258391165/figure/fig7/AS:322947316240401@1454008048835/Radiation-pattern-of-Archimedean-spiral-antenna-a-3D-and-b-elevation-cuts-at-phi.png
> <https://www.researchgate.net/publication/258391165/figure/fig7/AS:322947316240401@1454008048835/Radiation-pattern-of-Archimedean-spiral-antenna-a-3D-and-b-elevation-cuts-at-phi.png%C2%A0>
>
> I am quite confident that there is a tool in R to help me do this 3D
> plot, and even better rotatable.
> Thanks for the reply to allAlex
>
> On Wednesday, June 21, 2017 1:07 PM, Duncan Murdoch
> <murdoch.duncan at gmail.com <mailto:murdoch.duncan at gmail.com>> wrote:
>
>
> On 21/06/2017 5:23 AM, Alaios via R-help wrote:
>> Thanks a lot for the reply.After looking at different parts of the
> code today I was able to start with simple 2D polar plots as the
> attached pdf file. In case the attachment is not visible I used the
> plot.polar function to create something like
> that.https://vijaybarve.files.wordpress.com/2013/04/polarplot-05.png
>> Now the idea now will be to put three of those (for X,Y,Z) in a 3d
> rotatable plane. I tried the rgl function but is not clear how I can use
> directly polar coordinates to draw the points at the three different planes.
>> Any ideas on that?
>
> You can't easily do what you're trying to do. You have 6 coordinates to
> display: the 3 angles and values corresponding to each of them. You
> need to suppress something.
>
> If the values for matching angles correspond to each other (e.g. x=23
> degrees and y=23 degrees and z=23 degrees all correspond to the same
> observation), then I'd suggest suppressing the angles. Just do a
> scatterplot of the 3 corresponding values. It might make sense to join
> them (to make a path as the angles change), and perhaps to colour the
> path to indicate the angle (or plot text along the path to show it).
>
> Duncan Murdoch
>
>> Thanks a lot.RegardsAlex
>>
>> On Tuesday, June 20, 2017 9:49 PM, Uwe Ligges
> <ligges at statistik.tu-dortmund.de
> <mailto:ligges at statistik.tu-dortmund.de>> wrote:
>>
>>
>> package rgl.
>>
>> Best,
>> Uwe Ligges
>>
>>
>> On 20.06.2017 21:29, Alaios via R-help wrote:
>>> HelloI have three x,y,z vectors (lets say each is set as
> rnorm(360)). So each one is having 360 elements each one correpsonding
> to angular coordinates (1 degree, 2 degrees, 3 degrees,.... 360 degrees)
> and I want to plot those on the xyz axes that have degress.
>>> Is there a function or library to look at R cran? The ideal will be
> that after plotting I will be able to rotate the shape.
>>> I would like to thank you in advance for your helpRegardsAlex
>>> [[alternative HTML version deleted]]
>>>
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