WorldViz User Forum  

Go Back   WorldViz User Forum > Vizard

Reply
 
Thread Tools Rate Thread Display Modes
  #1  
Old 06-01-2014, 03:55 AM
armo armo is offline
Member
 
Join Date: Mar 2014
Posts: 21
how to link the Sony HMD to the MainView

Hello everyone

I would like to link our Sony HMD to the MainView so the viewer could freely explore the scenarios once worn the HMD. The model is a Sony HMZ-TH1.


but when I run this script:

Code:
import viz
import SonyHMD 


hmd = SonyHMD.HMZT1()
headlink = viz.link(hmd, viz.MainView)
	
viz.go()

viz.add('scenario/ground_wood.osgb')

it tells me that the source object is not a linkable type:

Code:
Traceback (most recent call last):
  File "<string>", line 11, in <module>
  File "C:\Users\Armando\Desktop\ARMANDO\ScriptVizard\provaCascoSony\provaCascoSonyArmo.py", line 21, in <module>
    headlink = viz.link(hmd, viz.MainView)
  File "C:\Program Files\WorldViz\Vizard5\python\viz.py", line 8723, in link
    raise TypeError, 'Link source is not a linkable type'
TypeError: Link source is not a linkable type

Could you please tell me where is the error? (as I suppose there should be one, since the viz.link works finely with the wirks example script "The Pit")


kind regards,
armo
Reply With Quote
  #2  
Old 06-02-2014, 12:23 AM
Jeff Jeff is offline
WorldViz Team Member
 
Join Date: Aug 2008
Posts: 2,426
The line of code:

Code:
hmd = SonyHMD.HMZT1()
configures the display settings but does not provide a position and orientation that another object such as the viewpoint can be linked to. You can link the viewpoint to a Kinect or InertialLabs tracker object. In the Wirks demos, take a look at the code where the trackers are added and the viewpoint is linked to a merged tracker created from Kinect position and InertialLabs orientation.
Reply With Quote
  #3  
Old 06-03-2014, 02:55 AM
armo armo is offline
Member
 
Join Date: Mar 2014
Posts: 21
Dear Jeff

thank you very much! I followed your instructions and it worked.

However two new problems occured:

1-it seems like the orientation axes are misconfigured because If I try to look up the camera doesn't revolve around the X axis but it actually rolls like if it was on the Z axis. The yaw rotation on the other hand works properly.

2-I can't manage to set the height of the viewpoint. The MainView remains on the ground level even if I use the viz.eyeheight or viz.MainView.setPosition commands

here's the code:

Code:
import Config
import InertialLabs
import SonyHMD
import viz
import viztracker

hmd = SonyHMD.HMZT1()
myILSensor = InertialLabs.addSensor(port=Config.COM_PORT)
tracker = viztracker.KeyboardPos()
head6DoFTracker = viz.mergeLinkable(tracker, myILSensor)
headlink = viz.link(head6DoFTracker, viz.MainView)

viz.go(viz.FULLSCREEN)
viz.eyeheight(1.4)

viz.add('scenario/stanza4.dae',pos=(0, 0.06, 0), euler=(0,0,0), scale=(0.0254]*3))
viz.MainView.setPosition(0, 1.4, 0)

best regards,
armo
Reply With Quote
  #4  
Old 06-04-2014, 10:35 PM
Jeff Jeff is offline
WorldViz Team Member
 
Join Date: Aug 2008
Posts: 2,426
1. Make sure you reset the inertial labs tracker. You'll need to call the resetHeading function as in ThePit.py demo script.

2. You've linked the viewpoint to a tracker that has an initial height value of 0. The position of the link source (keytracker) will override the position you specify in the view.setPosition or viz.eyeheight commands. You can apply an offset to the link so it's initial value is not at ground level:

Code:
headlink.postTrans([0,1.8,0])
You can also force the viewpoint to stay at a certain height. In the following code only the X,Z position of the keytracker is be applied to the link. The height is fixed at 1.8:

Code:
headlink.setPos([None,1.8,None])
Reply With Quote
  #5  
Old 06-08-2014, 11:34 AM
armo armo is offline
Member
 
Join Date: Mar 2014
Posts: 21
Dear Jeff

With these latter instructions now it all works fine and well. Thank you so much!



best regards,
armo
Reply With Quote
Reply

Tags
hmd, linking, sony

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Mainview can't go back to original point jacky Vizard 1 06-04-2013 05:22 AM
How to link the Mainview to a child object jacky Vizard 1 05-02-2013 10:51 AM
How can I link MainView with HMD and a 3d node? Salvar Vizard 5 03-22-2011 09:14 PM
Link MainView to instable platform sleiN13 Vizard 2 01-10-2011 01:33 AM
link MainView moneim230 Vizard 1 09-14-2010 02:47 PM


All times are GMT -7. The time now is 01:36 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright 2002-2018 WorldViz LLC