On 12/09/2015 6:12 PM, Dominick Samperi wrote: > FYI, one platform where I have not been able to get interactive rgl > working is iOS 8. > iOS 8 is supposed to support WebGL, and Javascript is enabled.
I'm not going to try to support iOS. Duncan Murdoch > On Sat, Sep 12, 2015 at 4:33 PM, Dominick Samperi <djsamp...@gmail.com> wrote: >> Thanks for the pointers and the quick fix. >> >> Perhaps the generated HTML code should issue a >> message like "Javascript load problem" instead of >> "You must enable Javascript to view this page properly," >> because the latter can be misleading. >> >> >> On Sat, Sep 12, 2015 at 12:42 PM, Duncan Murdoch >> <murdoch.dun...@gmail.com> wrote: >>> On 12/09/2015 7:37 AM, Duncan Murdoch wrote: >>>> On 11/09/2015 10:14 PM, Dominick Samperi wrote: >>>>> Hello, >>>>> >>>>> The recently created online "rgl Overview" at >>>>> https://cran.r-project.org/web/packages/rgl/vignettes/rgl.html >>>>> illustrates a problem that I am trying to resolve. >>>>> >>>>> At the bottom of each image block on that page appears the >>>>> advisory: You must enable Javascript to view this page properly. >>>>> >>>>> I am using Safari under MacOS with Javascript and WebGL >>>>> both enabled, so it must be the detection algorithm that is >>>>> mistaken. It is not clear to me how this works after looking >>>>> over the generated HTML code (generated by knit2html >>>>> in my case). >>>>> >>>>> I found this after I ran into this problem in a different context, >>>>> namely, in the process of creating a wordpress page that >>>>> contains interactive rgl content. I tried simply placing >>>>> the code generated by knit2html into a wordpress page, >>>>> but the result is not interactive and that message about >>>>> Javascript not being enabled appears. >>>>> >>>>> On the other hand, if I open the generated code in a >>>>> browser directly, interaction works and there is no >>>>> Javascript message. >>>>> >>>>> In summary, interactive rgl code works stand-alone, but >>>>> not in wordpress, and not in the "rgl Overview" page. >>>>> >>>> >>>> I see the same in Firefox, it's not just Safari. >>>> >>>> If I look at the browser console, I see errors indicating that rglClass >>>> is not defined, and I don't see a block of Javascript code that should >>>> have been inserted. >>>> >>>> If I install rgl from the source on CRAN, I see the same problem, so it >>>> looks like an rgl bug. I'll see if I can fix it. >>> >>> Yes, it was an rgl bug. During my testing I always had knitr loaded >>> before rgl, but when building the vignettes for the package, the load >>> order is different, and the initialization was silently skipped. >>> >>> I'll soon be committing changes to R-forge to fix this, and eventually >>> it will end up on CRAN. At the moment it looks like I need to add this >>> function: >>> >>> setupKnitr <- function() { >>> if (requireNamespace("knitr")) { >>> knitr::knit_hooks$set(webgl = hook_webgl) >>> knitr::knit_hooks$set(rgl = hook_rgl) >>> environment(hook_webgl)$commonParts <- TRUE >>> environment(hook_webgl)$reuse <- TRUE >>> } >>> } >>> >>> and that should be called (just once) near the start of the vignette. >>> >>> Duncan Murdoch >>> ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
