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Flip coordinates in plotImage() #23

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Merged
Bisaloo merged 2 commits into from
May 6, 2026
Merged

Flip coordinates in plotImage() #23

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84f2d4e
Flip coordinates in plotImage()
Bisaloo May 6, 2026
2eb74db
Add comment to motivate scale_y_reverse() approach
Bisaloo May 6, 2026
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6 changes: 5 additions & 1 deletion R/plotImage.R
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Original file line number Diff line number Diff line change
Expand Up @@ -221,4 +221,8 @@ setMethod("plotImage", "SpatialData", \(x, i=1, j=1, k=NULL, ch=NULL, c=NULL, cl
#' @export
#' @rdname plotImage
#' @importFrom ggplot2 ggplot scale_y_reverse coord_fixed
plotSpatialData <- \() ggplot() + coord_fixed() + .theme
plotSpatialData <- \() ggplot() + scale_y_reverse() + coord_fixed() + .theme
# `annotation_raster` plots the array the same way it is printed, i.e., with the
# row 1 at the top, which means we need to flip the y-axis to have the correct axis labels.
# We tried flipping the image itself but it means everything gets out of alignement if
# the user sets `scale_y_reverse()` themselves.
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