[BioC] rgl.init error

Steve Lauriault stevan at lauriault.com
Thu Jan 29 20:47:31 CET 2009

> rgl.init()

Error in rgl.init() : Assertion failure: gpWin32GUIFactory == NULL
File: win32lib.cpp
Line: 39
Please report to rgl maintainer.

Not sure who the rgl maintainer is, but this is me reporting.


-----Original Message-----
From: Deepayan Sarkar [mailto:deepayan.sarkar at gmail.com] 
Sent: Thursday, January 29, 2009 12:32 PM
To: stevan at lauriault.com
Cc: Nishant Gopalakrishnan; bioconductor at stat.math.ethz.ch
Subject: Re: [BioC] flowCore - cloud()

On 1/29/09, Steve Lauriault <stevan at lauriault.com> wrote:
> Thank you Nishant,
>  Not to be nit-picky, but is there a function that would allow one to
>  and/or zoom-in on the cube?  If not, there is a plot developed in MatLab
>  Laszlo Balkay (sp?) that allows one to do this (rotate, zoom-in, etc)
>  3-D FCS dataframes.  Not sure how congruent the two languages are, or if
>  this is any help at all, but I thought I'd relay the info.  I thought it
>  a cool function, but it would be cooler if one could add colour to
>  fluorescence intensity, offspring or subset populations in the 4th
>  dimension.

The rgl package should be able to do all this fairly easily. There is
no convenience API predefined to allow this with flowFrames, but as
Nishant said, there is only one extra step needed:

1. extract the expressions from a flowFrame as a data frame or matrix

2. use the standard rgl API

There are many examples accompanying rgl that should get you started.


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