[Answer]-Admin site doesn't show object fields

Since PointField does not have a __unicode__ attribute, for the proper name to show up, you can register a new admin model object.

Now, in the admin’s list_display,

class PointFieldAdmin(admin.ModelAdmin):
    list_display = ('name', 'field_x', 'field_y', ...)

admin.register(PointField, PointFieldAdmin)

More on admin models registering here