From jpierce@cs.cmu.edu Fri May 1 15:30:45 1998 Received: from burdell.cc.gatech.edu (root@burdell.cc.gatech.edu [130.207.3.207]) by lennon.cc.gatech.edu (8.8.4/8.6.9) with ESMTP id PAA13312 for ; Fri, 1 May 1998 15:30:44 -0400 (EDT) Received: from wheaten.hitl.washington.edu (REaRE9Bd+CF6YdyW9KDjqOhkHZbJKp/n@[128.95.73.60]) by burdell.cc.gatech.edu (8.8.4/8.6.9) with ESMTP id PAA04530 for ; Fri, 1 May 1998 15:30:42 -0400 (EDT) Received: from ux2.sp.cs.cmu.edu (UX2.SP.CS.CMU.EDU [128.2.198.102]) by wheaten.hitl.washington.edu (8.8.8/8.6.12) with SMTP id MAA03007 for <3d-ui@hitl.washington.edu>; Fri, 1 May 1998 12:30:36 -0700 (PDT) Message-Id: <199805011930.MAA03007@wheaten.hitl.washington.edu> Received: from HITCHCOCK.PC.CS.CMU.EDU by ux2.sp.cs.cmu.edu id aa21285; 1 May 98 15:30 EDT X-Sender: jpierce@ux2.sp.cs.cmu.edu X-Mailer: QUALCOMM Windows Eudora Pro Version 4.0 Date: Fri, 01 May 1998 15:28:48 -0400 To: 3d-ui@hitl.washington.edu From: Jeff Pierce Subject: Interaction technique idea Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Status: RO Well, in the interest of jump-starting some discussion I thought I'd toss out an idea I've been playing with and see what people think. I'm playing with the idea of implicit mode changes. Mark created one of these for his dissertation: if you point at an object and your hand isn't visible, you laser point to select. If your hand is visible, you use an image plane technique. The idea I'm playing with is using the dominant hand (DH) - non-dominant hand (NDH) asymmetry to specify implicit mode changes. Please, consider the following (science rules!): The way you use a fork generally depends on the hand you're holding it in. If you hold it in your DH, odds are you're picking up food with it. If you hold it in your NDH, you're probably bracing food so you can cut it. The way you use the fork is determined by the hand it's in. OR... I hold in my hands a paintbrush and a hammer. If the brush is in my DH and the hammer in my NDH, I probably want to paint on the hammer. But if the brush is in my NDH and the hammer in my DH, odds are I want to break the paint brush. Thank you for joining me on "Consider the Following". So the basic idea here is that you can give objects 2 modes and switch between them easily by changing the hand that holds the object. Theoretically there will be a natural mapping between what hand is holding the object and what you want to do with it. This also scales to a technique I came up with that we nicknamed "Voodoo Dolls": repositioning objects by moving handheld copies of objects. The object represented by the copy in your DH is positioned relative to the object you hold in your NDH. Note that this implicit moding only buys you 2 modes: if you want more than that, you're going to have to figure out ways to get the rest. Thoughts? Jeff