Glyph Type text
The (now rather ancient) visualization software OpenDX has the ability to show glyphs in text form. This glyphs represent the point values as a text string. The text glyph could be 2D (always oriented in the view plane) or 3D. I am aware that text values at a given position can be displayed using the labels of the selection display inspector. But this options needs a lot of user interaction and it seems not to be possible to compare the values of two different objects.
Extending Glyphs to have a text representation would be very much apreciated.