brainR (version 1.6.0)

writeWebGL_split: Write WebGL with split triangles

Description

Adapted writeWebGL function that splits the triangles into 65535 vertices

Usage

writeWebGL_split(ids = rgl.ids()$id, writeIt = TRUE, verb = FALSE, ...)

Arguments

ids

- rgl ids (see rgl.ids)

writeIt

- (logical) write the file out

verb

- verbose output

...

- further arguments passed to writeWebGL

Value

if writeIt is TRUE, then returns the value from writeWebGL. Otherwise, returns the split triangles from the rgl objects

Examples

# NOT RUN {
#Brain Template from Copyright (C) 1993-2009 Louis Collins, 
#McConnell Brain Imaging Centre, 
#Montreal Neurological Institute, McGill University
#6th generation non-linear symmetric brain
template <- readNIfTI(system.file("MNI152_T1_2mm_brain.nii.gz", package="brainR")
, reorient=FALSE) 
dtemp <- dim(template)
### 4500 - value that empirically value that presented a brain with gyri
### lower values result in a smoother surface
brain <- contour3d(template, x=1:dtemp[1], y=1:dtemp[2], 
z=1:dtemp[3], level = 4500, alpha = 0.1, draw = FALSE)
drawScene.rgl(brain)
### this would be the ``activation'' or surface you want to render - 
# hyper-intense white matter
contour3d(template, level = c(8200, 8250), 
alpha = c(0.5, 0.8), add = TRUE, color=c("yellow", "red"))
### add text
text3d(x=dtemp[1]/2, y=dtemp[2]/2, z = dtemp[3]*0.98, text="Top")
text3d(x=-0.98, y=dtemp[2]/2, z = dtemp[3]/2, text="Right")
fname <- "knitted_webGL.html"
writeWebGL_split(dir=getwd(), filename =fname, 
template = system.file("my_template.html", package="brainR"), width=500, 
writeIt=TRUE)
browseURL(fname)
# }