Dear all,
I am using writeWebGL to create an HTML page containing an interactive 3D plot.
It works fine with the default prefix="" but fails when I specify a prefix "for
different scenes displayed on the same web page" (quoting ?writeWebGL). I'm
sure I'm misreading the help, and would appreciate guidance.
Briefly, it works fine with the default writeWebGL( ,prefix="", ) and the
template containing %WebGL%
I have not been able to make it work with any other value of prefix; e.g.
writeWebGL( ,prefix="A",) and the template containing %AWebGL%
Here is code illustrating the problem.
First create three templates:
a) Vanilla: copied system.file(file.path("WebGL", "template.html"),
package="rgl") to file.path(getwd(), "template.html")
b) First attempt: ?writeWebGL says # "[the template] should contain a single
line containing paste("%", prefix, "WebGL%"), e.g. %WebGL% with the default
empty prefix"
paste("%", "A", "WebGL%")
# [1] "% A WebGL%"
so file.path(getwd(), "templateA.html") is a copy of (a) replacing %WebGL% with
% A WebGL%
c) Second attempt: file.path(getwd(), "templateB.html") is a copy of (a)
replacing %WebGL% with %AWebGL%
then, in R
#-----------
library(rgl)
plot3d(1:5, 1:5, 1:5) # generate rgl scene
#-----------
# a) vanilla
writeWebGL(dir=getwd(), template = file.path(getwd(), "template.html"),
prefix="")
# works OK; result opens and works in IE
#----------------
# b) First attempt, my reading of ?writeWebGL
writeWebGL(dir=getwd(), template = file.path(getwd(), "templateA.html"),
prefix="A")
# Error in writeWebGL(dir = getwd(), template = file.path(getwd(),
"templateA.html"), :
# template ‘m://templateA.html’ does not contain %AWebGL%
# so it looks as if the help is trivially wrong, it should be paste0
paste0("%", "A", "WebGL%")
# [1] "%AWebGL%"
#----------------
# c) second attempt using %AWebGL%
writeWebGL(dir=getwd(), template = file.path(getwd(), "templateB.html"),
prefix="A")
# runs without error in R but IE displays "You must enable Javascript to view
this page properly."
#--------------
I don't understand why (c) is different from (a).
Here are the system details:
R version 3.1.0 (2014-04-10)
Platform: i386-w64-mingw32/i386 (32-bit)
locale:
[1] LC_COLLATE=English_United Kingdom.1252
[2] LC_CTYPE=English_United Kingdom.1252
[3] LC_MONETARY=English_United Kingdom.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United Kingdom.1252
attached base packages:
[1] grDevices datasets splines graphics stats tcltk utils
[8] tools methods base
other attached packages:
[1] knitr_1.8 animation_2.3 rgl_0.95.1158 CBRIutils_1.0
[5] stringr_0.6.2 svSocket_0.9-55 TinnR_1.0-5 R2HTML_2.3.1
[9] Hmisc_3.12-2 Formula_1.1-1 survival_2.37-7
loaded via a namespace (and not attached):
[1] cluster_1.15.3 devtools_1.6.1 evaluate_0.5.5 formatR_1.0
[5] grid_3.1.0 highr_0.4 lattice_0.20-29 rpart_4.1-8
[9] svMisc_0.9-70
Internet Explorer 11 Version 11.0.9600.17420
Any advice is welcome.
Keith Jewell - Statistician
Tel: +44 (0)1386 842055
Web: www.campdenbri.co.uk
Email: keith.jew...@campdenbri.co.uk
Campden BRI (Chipping Campden) Limited - part of the Campden BRI group
Station Road ♦ Chipping Campden ♦ Gloucestershire ♦ GL55 6LD ♦ UK
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