[Gzz-commits] manuscripts/Control1 poster.rst

[Tuomas J. Lukka]

CVSROOT:        /cvsroot/gzz
Module name:    manuscripts
Changes by:     Tuomas J. Lukka <address@hidden>        03/05/05 16:29:08

Modified files:
        Control1       : poster.rst 

Log message:
        write

CVSWeb URLs:
http://savannah.gnu.org/cgi-bin/viewcvs/gzz/manuscripts/Control1/poster.rst.diff?tr1=1.57&tr2=1.58&r1=text&r2=text

Patches:
Index: manuscripts/Control1/poster.rst
diff -u manuscripts/Control1/poster.rst:1.57 
manuscripts/Control1/poster.rst:1.58
--- manuscripts/Control1/poster.rst:1.57        Mon May  5 16:26:23 2003
+++ manuscripts/Control1/poster.rst     Mon May  5 16:29:08 2003
@@ -1,5 +1,5 @@
 ==========================
-Fast, cheap and in control
+Fast, Cheap and In Control
 ==========================
 
 Abstract
@@ -53,12 +53,31 @@
 Producing customized controllers 
 for new user interfaces 
 is generally
-expensive and time-consuming and requires electronics and
+expensive and time-consuming and additionally
+requires electronics and
 machine shop skills
 not usually found in computer science or psychology departments.
 Because of this, most user interfaces are still operated
 with the mouse and keyboard, even if the interfaces
 could benefit from customized controllers.
+
+Experiments[rosenb (and intuition) indicate that adjusting a physical
+slider is much easier than adjusting a virtual slider on the 
+screen with a mouse. Despite this, virtual sliders or scrollbars
+are far more common with computers than physical sliders,
+probably due to economics. Adding a new virtual slider to a program
+costs next to nothing, while adding a new physical slider for
+each user amounts to a considerable sum of money.
+
+Still, complicated devices such as computer mice and joysticks
+can be cheap due to commodity economics; the cost of user 
+interface devices has little to do with manufacturing and 
+much more to do with the number produced, as the development
+costs are amortized over the whole production.
+Thus, computer mice cost approximately $10-$30, joysticks
+some more, steering wheels even more, and specialized
+input devices such as Monkey Bones 2 REF can cost up to $22,000.
+
 
 For example, using fisheye views [fc-fisheye]_ effectively needs
 altering the magnification and the amount of distortion.