Generic function to write new glyph types using loon's primitive glyphs
Usage
# Default S3 method
l_glyph_add(widget, type, label = "", ...)See also
Other glyph functions:
l_glyph_add(),
l_glyph_add_image(),
l_glyph_add_pointrange(),
l_glyph_add_polygon(),
l_glyph_add_serialaxes(),
l_glyph_add_text(),
l_glyph_delete(),
l_glyph_getLabel(),
l_glyph_getType(),
l_glyph_ids(),
l_glyph_relabel(),
l_primitiveGlyphs()
