l_glyph_add_image: Add an image glyphs

In loon: Interactive Statistical Data Visualization

Add an image glyphs

Description

Image glyphs are useful to show pictures or other sophisticated compound glyphs. Note that images in the Tk canvas support transparancy.

Usage

l_glyph_add_image(widget, images, label = "", ...)

Arguments

widget	widget path as a string or as an object handle
images	Tk image references, see the l_image_import_array and l_image_import_files helper functions.
label	label of a glyph (currently shown only in the glyph inspector)
...	state arguments

Details

For more information run: l_help("learn_R_display_plot.html#images")

See Also

l_glyph_add, l_image_import_array, l_image_import_files, l_make_glyphs

Other glyph functions: l_glyph_add.default(), l_glyph_add_pointrange(), l_glyph_add_polygon(), l_glyph_add_serialaxes(), l_glyph_add_text(), l_glyph_add(), l_glyph_delete(), l_glyph_getLabel(), l_glyph_getType(), l_glyph_ids(), l_glyph_relabel(), l_primitiveGlyphs()

Examples

if(interactive()){

p <- with(olive, l_plot(palmitic ~ stearic, color = Region))
img_paths <- list.files(file.path(find.package(package = 'loon'), "images"), full.names = TRUE)
imgs <- setNames(l_image_import_files(img_paths),
                 tools::file_path_sans_ext(basename(img_paths)))
i <- pmatch(gsub("^[[:alpha:]]+-","", olive$Area), names(imgs), duplicates.ok = TRUE)

g <- l_glyph_add_image(p, imgs[i], label="Flags")
p['glyph'] <- g
}

loon documentation built on July 9, 2023, 5:48 p.m.