Forum Discussion

BLPYPL's avatar
BLPYPL
New Member
8 years ago

R text sizing Bug

Hi,  The text sizing in R seems to incorrect recently. Can anyone help?   I'm using custom R visuals. I simply use "plot" and "text" to plot some text. I use parameter "cex" in "text". It works in...
LucasPritz's avatar
LucasPritz
New Member
8 years ago

Anonymous, your issue seems to be a separate problem than what other people are facing. Did this use to work in PBI Service? From my initial testing it doesn't seem to work in PBI Desktop either (though I see expected behavior in RStudio).

Edit: Anonymous actually it does work (:
In your first post you had the plotting with "cex = i*j"
And in your follow-up with our provided fix you have it with "cex = 4"
I copied one script into my local PBI Desktop and the other into my RStudio, thinking they were identical except for the workaround, and was very confused!
Please try in service with actual changing text size, you'll see it!

Thanks,
Lucas

Anonymous's avatar
Anonymous
Not applicable
8 years ago

Hi Lucas,

Thanks for your support.

While creating a reply to your request the work-around started to work.

To be honest, it is working only with the test code, not with the production one.

 

I'll let you know if I will be able to fix also the production environment.

Here below the working test code (same as yesterday...)

 

if (exists("powerbi_rFontName")){
library("showtext")
showtext.opts(dpi = powerbi_rPngDeviceDpi)
showtext.auto()
}

library(grid)
library(gridExtra)

d <- head(iris, 3)
g <- tableGrob(d)

find_cell <- function(table, row, col, name="core-fg"){
l <- table$layout
which(l$t==row & l$l==col & l$name==name)
}
for(i in 2:4){
for(j in 2:6){
index_fg <- find_cell(g, i, j, "core-fg")
g$grobs[index_fg][[1]][["gp"]] <- gpar(cex = 4, col = "green")
}
}

grid.newpage()
grid.draw(g)

  • Anonymous's avatar
    Anonymous
    Not applicable
    8 years ago

    Hi LucasPritz,
    I've finally found the problem with my production code.

    While the test code I've shared contains the following command, it is missing in my production code.

     

    grid.newpage()

     

    I've added this command in my production code and now it correctly works.

    I do not understand why the use of grid.newpage() is mandatory, but now the work-around works and it is the important thing!