Re: [vistavrtoolkit-general] Problems with DFN-Node: Could not fetch movements of mouse scrollwheel on linux

[Dominik R. <ra...@vr...>]

Hi

 

What version of glut are you using? Standard glut does not support mouse
wheels, but freeglut does, so you’ll have to built Vista with freeglut.

 

Regards

  Dominik

 

--

 

Dipl.-Inform. Dominik Rausch
 
Virtual Reality Group, RWTH Aachen University
Lehrstuhl für Informatik 12 (Hochleistungsrechnen)
 
  Rechen- und Kommunikationszentrum
  Seffenter Weg 23, 52074 Aachen
  Tel. +49 241 80 29732
   <mailto:ra...@vr...> ra...@vr...
   <http://www.vr.rwth-aachen.de> www.vr.rwth-aachen.de

 

From: Dan...@dl... [mailto:Dan...@dl...] 
Sent: Thursday, October 04, 2012 1:32 PM
To: vis...@li...
Cc: Rob...@dl...; Rol...@dl...
Subject: [vistavrtoolkit-general] Problems with DFN-Node: Could not fetch
movements of mouse scrollwheel on linux

 

Hi all,

I am new to VISTA and try to pipe the scrollwheel movements of a normal
mouse via the DataFlowNet on Linux inside my programm

I am using VISTA 11 on SUSE Linux 11.

 I use the following interaction.xml file:

<module>
    <nodespace>
    </nodespace>

    <graph>
        <!-- data source... a mouse -->
        <node name="mouse" type="DriverSensor">
            <param name="sensor" value="0" />
            <param name="driver" value="MOUSE" />
        </node>

        <node name="flystick_action" type="Action">
            <param name="object" value="FlystickActionObject" />
        </node>

        <node name="project_mouse" type="HistoryProject">
            <param name="project">POSITION, LEFT_BUTTON, RIGHT_BUTTON,
MIDDLE_BUTTON, X_POS, Y_POS, WHEEL_STATE, WHEEL_DIR</param>
        </node>

        <node name="conv_wheel_state" type="TypeConvert[int,double]" />
        <node name="conv_wheel_dir" type="TypeConvert[int,double]" />

    </graph>
    <edges>
        <edge fromnode="mouse" tonode="project_mouse" fromport="history"
toport="history" />
 
        <edge fromnode="project_mouse" tonode="conv_wheel_state"
fromport="WHEEL_STATE" toport="in" />
        <edge fromnode="project_mouse" tonode="conv_wheel_dir"
fromport="WHEEL_DIR" toport="in" />

        <edge fromnode="conv_wheel_state" tonode="flystick_action"
fromport="out" toport="button_state_9" />
        <edge fromnode="conv_wheel_dir" tonode="flystick_action"
fromport="out" toport="button_state_10" />-->

      </edges>
</module>


Some parts of the interaction.ini. I hope I choose the interesting parts:

[3DMOUSE]
ROLE = 3DMOUSE
GRAPH = xml/mouse_ray.xml
#RELOADTRIGGER = T

[MOUSE]
TYPE = MOUSE
HISTORY = 10
SENSORS = MOUSE_MAIN
DEFAULTWINDOW = TRUE

[SPACENAVIGATOR]
TYPE = SPACENAVIGATOR
HISTORY = 10

[MOUSE_MAIN]
RAWID = 0



When the mousewheel is turned I receive zeros on button_state_9 and
button_state_10. 

In the source code of  VistaMouseDriver.cpp it looks as port "DSCALAR_3" of
"project_mouse" would contain the scrollwheel data. Therefore I also tried
to send DSCALAR_3 in my program. But it contains the same data as
"WHEEL_DIR" and "WHEEL_STATE".  

The state of the Left-, Right- and Middle-Button could be piped in my
programm without problems. 

The same problem occurs on Linux with Vista 13. On Windows with Vista 13
everything is fine. 

Have you any suggestions for me? Is there a workaround to get the
information about the scrollwheel movement on Linux?

Thank you for your help!

Best regards,
Daniel Homann