WebGL Earth

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WebGL Earth

Richard Barnes
I'm thinking about cobbling together a little package to show data in
WebGL Earth (http://www.webglearth.org/), similar to Leaflet for R
(https://rstudio.github.io/leaflet/).

Just wanted to inquire as to whether anyone's already built such a thing
or at work on it?

Best regards,
Richard

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Re: WebGL Earth

Tim Appelhans
Richard,

great idea! We have a 'Hello World' Cesium htmlwidget which has never
seen any further progress.

https://github.com/environmentalinformatics-marburg/cesium

May I ask what the added value of webglearth over leaflet is (apart from
a fancy spinning globe)? Cesium has native space-time support so would
really add something that isn't (yet) accessible from R. Would you
consider taking on a grander challenge working on cesium implementation?
If so, we could move the above repo to r-spatial at github and trun it
into a group effort.

Anyway, just some thoughts...

Tim


On 18.04.2017 03:50, Richard Barnes wrote:

> I'm thinking about cobbling together a little package to show data in
> WebGL Earth (http://www.webglearth.org/), similar to Leaflet for R
> (https://rstudio.github.io/leaflet/).
>
> Just wanted to inquire as to whether anyone's already built such a thing
> or at work on it?
>
> Best regards,
> Richard
>
> _______________________________________________
> R-sig-Geo mailing list
> [hidden email]
> https://stat.ethz.ch/mailman/listinfo/r-sig-geo

--
Tim Appelhans
Research Specialist, Geomarketing
GfK | Bamberger Str. 6, 90425 Nürnberg | Germany
Postal address: Nordwestring 101 | 90419 Nürnberg

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Re: WebGL Earth

Michael Sumner-2
In reply to this post by Richard Barnes
HI Richard,


On Tue, 18 Apr 2017 at 11:50 Richard Barnes <[hidden email]> wrote:

> I'm thinking about cobbling together a little package to show data in
> WebGL Earth (http://www.webglearth.org/), similar to Leaflet for R
> (https://rstudio.github.io/leaflet/).
>
>
I put this together to put various R data structures into forms ready for
rgl or WebGL:

https://github.com/r-gris/rangl

The pattern is

## convert to table entities
x <- rangl(object)

## plot in rgl form and return the rgl structure (list of arrays)
rg <- plot(x)

## optionally convert to geocentric coordinates rather than the native CRS
rg <- plot(globe(x))

 The geocentric step is merely transformation on the unique vertices after
decomposition to primitiveslike, so it can be done independent of any other
structure.

This is how I would transfer data to WebGL, with optimizations as needed. I
wish we had a general central core with primitives like this but ultimately
it's just tables and indexing so pretty easy to do.

Cheers, Mike.


Just wanted to inquire as to whether anyone's already built such a thing

> or at work on it?
>
> Best regards,
> Richard
>
> _______________________________________________
> R-sig-Geo mailing list
> [hidden email]
> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>
--
Dr. Michael Sumner
Software and Database Engineer
Australian Antarctic Division
203 Channel Highway
Kingston Tasmania 7050 Australia

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