[x3d-public] Multi-Touch

[GPU Group]

  I exposed the multi-touch capability in freewrl
-Doug Sanden
...
I exposed the multi-touch capability in freewrl windows x64:
https://sourceforge.net/projects/freewrl/files/freewrl-win32/4.0/
- version 450.msi
Launcher or in-browser [x] option:
[0] mouse [1] emulate multitouch [2] multitouch [3] gestures
1) emulate multitouch: you do a RMB right mouse button click to create a
touch-drag, and right-click on/near it again to delete it
-- you left-click-and-drag to move it
-- can have several touch drags alive at the same time
http://dug9.users.sourceforge.net/web3d/tests/sensors/Drags.x3d
- example scene where you can have a touch down on 3 different sensors and
drag them separately,
-- no new nodes or changes to node fields needed for this example (but
internally something is treating each drag separately by ID)
2) multitouch
- implements windows7+ WM_TOUCH window events and supports multiple
simultaneous touches.as with the emulator

Wanting to implement the windows7 style WM_TOUCH handler in your app but
don't have a suitable touch device for testing?
Options:
a) windows.simulator emulates touches (but emulates GPU and some grpahics
programs like freewrl won't run under windows.simulator)
b) I made a touch-device-simulator that runs on a second windows computer
(and you use a mouse on it):and it talks to a TCP server on your main
computer.and it injects touches onto the desktop in a generic way, so can
be used for testing any WM_TOUCH enabled app.:

http://dug9.users.sourceforge.net/web3d/touch/windows_touch_injection.zip



On Mon, Feb 17, 2020 at 1:43 PM GPU Group <gpugroup at gmail.com> wrote:

> Don,
> Yes permission granted, I may not have done ReplyAll by mistake.
> Multi-touch - perhaps v4.1 or v4.2?
> -Doug
> PS I'm planning to expose the desktop multitouch emulator in freewrl via
> commandline option.
> - it allows you to add, delete, drag a touch to emulate multiple touches,
> with a single mouse
>
>
> On Mon, Feb 17, 2020 at 12:29 PM Don Brutzman <brutzman at nps.edu> wrote:
>
>> Doug, do we have your permission to share your notes as part of public
>> working group minutes?
>>
>> Personal impression: we should get clearer consensus on each of the
>> proposed navigation modes first, that will likely simplify multitouch
>> discussions.  But all opinions are welcome and that is how we progress.
>> Since X3DOM team and many devices have done multitouch, it seems sensible
>> to pursue those capabilities if it doesn't slow down X3Dv4 progress.
>>
>> Onward we go, thanks for sharing if possible.
>>
>> On 2/17/2020 9:23 AM, Richard F. Puk wrote:
>> > *From:*GPU Group [mailto:gpugroup at gmail.com]
>> > *Sent:* Friday, February 7, 2020 9:37 AM
>> > *To:* Richard F. Puk
>> > *Subject:*
>> >
>> > Besides topics listed previously here:
>> >
>> >
>> http://web3d.org/pipermail/x3d-public_web3d.org/2020-February/011774.html
>> >
>> > we talked about
>> >
>> > D. Multitouch
>> >
>> > - can use 2 touches for navigation - like zoom in/out, avatar z axis
>> rotation
>> >
>> > - or for touch sensors, ie a kids game table with up to 32
>> simultaneous touches
>> >
>> > a) 1:1 touch with sensor - no change to node design needed (but browser
>> internals)
>> >
>> > b) one sensor with multiple simultaneous touches
>> >
>> > -- extending PlaneSensor vs new node type
>> >
>> > -- 2 touches could be rotation
>> >
>> > -- n touches could be array[]
>> >
>> > -- node design guidelines > lots of little nodes vs. a few field-heavy
>> fat nodes
>> >
>> > -- for example PlaneSensor that does Line and Point/Space, or 3 nodes
>> >
>> > --- Dick recommends small nodes, from simple to complex for
>> implementation Levels
>> >
>> > - no conclusions
>> >
>> > E. Kiosk / museum mode navigation
>> >
>> > - no keyboard (so user can't get out of browser and into operating
>> system)
>> >
>> > - borderless window
>> >
>> > - navigation can't rely on keyboard keys
>> >
>> > - no conclusions
>> >
>> > F. Geospatial navigation
>> >
>> > - walk and fly with respect to planet
>> >
>> > - issues with multiple planets - how switch planets
>> >
>> > - Dick's extended geo specs based on:
>> >
>> > -- ISO 18026 via sedris.org <http://sedris.org>
>> >
>> > - freewrl > GeoPlanet separates geonodes, avatar navigates wrt 1 planet
>> at a time
>> >
>> > - freewrl > GeoConvert - non-standard converter geographic/mappingplane
>> <--> xyzgeocentric
>> >
>> > - no conclusions
>> >
>> > G. Trains
>> >
>> > - Viewpoint.retainUserOffsets
>> >
>> > - elevator / train issue - when avatar boards plane, sense location,
>> rebind to vp that's child of the train, with .retainUserOffsets TRUE until
>> un-boarding
>> >
>> > - Dick: trajectory / path / nurbscurve animation of trains, elevators
>> >
>> > - no conclusions
>> >
>>
>> all the best, Don
>> --
>> Don Brutzman  Naval Postgraduate School, Code USW/Br
>> brutzman at nps.edu
>> Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA
>>  +1.831.656.2149
>> X3D graphics, virtual worlds, navy robotics
>> http://faculty.nps.edu/brutzman
>>
>
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