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    <p>This script generate a SVG file wherein you can interactively annotate the points.</p> <pre><code>library(ggplot2) library(gridSVG) geom_point2 &lt;- function (...) GeomPoint2$new(...) GeomPoint2 &lt;- proto(GeomPoint, { objname &lt;- "point2" draw &lt;- function(., data, scales, coordinates, na.rm = FALSE, ...) { data &lt;- remove_missing(data, na.rm, c("x", "y", "size", "shape"), name = "geom_point") if (empty(data)) return(zeroGrob()) name &lt;- paste(.$my_name(), data$PANEL[1], sep = ".") with(coordinates$transform(data, scales), ggname(name, pointsGrob(x, y, size = unit(size, "mm"), pch = shape, gp = gpar(col = alpha(colour, alpha), fill = fill, label = label, fontsize = size * .pt)))) }} ) p &lt;- ggplot(mtcars, aes(mpg, wt, label = rownames(mtcars))) + geom_point2() + facet_wrap(~ gear) print(p) grob_names &lt;- grid.ls(print = FALSE)$name point_grob_names &lt;- sort(grob_names[grepl("point", grob_names)]) point_grobs_labels &lt;- lapply(point_grob_names, function(x) grid.get(x)$gp$label) library(rjson) jlabel &lt;- toJSON(point_grobs_labels) grid.text("value", 0.05, 0.05, just = c(0, 0), name = "text_place", gp = gpar(col = "red")) script &lt;- ' var txt = null; function f() { var id = this.id.match(/geom_point2.([0-9]+)\\.points.*\\.([0-9]+)$/); txt.textContent = label[id[1]-1][id[2]-1]; } window.addEventListener("load",function(){ var es = document.getElementsByTagName("circle"); for (i=0; i&lt;es.length; ++i) es[i].addEventListener("mouseover", f, false); txt = (document.getElementById("text_place").getElementsByTagName("tspan"))[0]; },false); ' grid.script(script = script) grid.script(script = paste("var label = ", jlabel)) gridToSVG() </code></pre> <p>Do you know some places I can upload SVG file?</p>
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    1. POHow do you relate ggplot2 grobs back to the data?
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    1. COAwesome! I had to remove the `filename = "s.js"` argument to get this to work for me, though.
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    2. COthanks. That's my mistake.
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    3. COWow! That is some serious code. Many thanks.
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      1. USRichie Cotton
 

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