Re: [osg-users] [build] osgText library

2012-05-03 Thread David Fernandes 
Thanks Chris,

That was really helpfull, it worked well.

Cheers,
David

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Re: [osg-users] [build] osgText library

2012-05-02 Thread David Fernandes 
I used the following code to paint the text in the scene when the mark is 
detected:

osgText::Text* tankLabel = new osgText::Text();
osg::Geode* tankLabelGeode = new osg::Geode();
tankLabel-setCharacterSize(20);
tankLabel-setFont(../arial.ttf);
tankLabel-setText(text that i want to show);
tankLabel-setAxisAlignment(osgText::Text::SCREEN);
tankLabel-setDrawMode(osgText::Text::TEXT |
osgText::Text::ALIGNMENT | 
osgText::Text::BOUNDINGBOX);


tankLabel-setAlignment(osgText::Text::CENTER_TOP);
tankLabel-setPosition( osg::Vec3(-40,-80,-590) );
tankLabel-setColor(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f));
tankLabelGeode-addDrawable(tankLabel);
OSG::GetRootNode()-addChild(tankLabelGeode);  


To delete the same text I've tried the following code but it's not working for 
me:

osg::ClearNode* clearNode = new osg::ClearNode;
clearNode-addChild(tankLabelGeode);


How can I hide the nodemask ?

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Re: [osg-users] [build] osgText library

2012-05-02 Thread Chris Hanson 

 To delete the same text I've tried the following code but it's not working
 for me:
 osg::ClearNode* clearNode = new osg::ClearNode;
 clearNode-addChild(tankLabelGeode);


  I'm not sure where you got the idea to use clearNode. Go read the
documentation of what it does. It's not what you need.


How can I hide the nodemask ?


  Set the node's nodemask to 0:

tankLabel-setNodeMask(0);

To turn it back on, set it to non-zero:

tankLabel-setNodeMask(~0);




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Re: [osg-users] [build] osgText library

2012-05-02 Thread David Fernandes 
I have tried that and when building the error message is 


error C2039: 'setNodeMask' : is not a member of 'osgText::Text' 


Why is this happening ?

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Re: [osg-users] [build] osgText library

2012-05-02 Thread Chris Hanson 

 error C2039: 'setNodeMask' : is not a member of 'osgText::Text'


My mistake. Do setNodeMask on tankLabelGeode. osgText class is not derived
from the Node class, but the Geode is.

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Re: [osg-users] [build] osgText library

2012-05-01 Thread David Fernandes 
Hi Robert,

X3M, NUTTS and TTS are Vision-based Tracking.
X3M is a Marker-based Tracking - AR Toolkit, 

- Uses single tracking marker or multi-markers
- Determines camera pose information (extrinsic parameters) (6 DOF)
- Includes utilities for fiducial marker-based pre-processing and camera 
calibration

More info in the ARTOOLKIT website. 



TTS is a Texture Tracking System

NUTSS and FIRST – Fast Invariant to Rotation and Scale Transform


Regards,
David

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Re: [osg-users] [build] osgText library

2012-05-01 Thread Chris Hanson 
  So it sounds like your question is how do I make osgText objects
disappear when I want them to?

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Re: [osg-users] [build] osgText library

2012-05-01 Thread David Fernandes 
Hi Chris,


Yes, that's what I'm trying to do.


Regards,
David

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Re: [osg-users] [build] osgText library

2012-05-01 Thread Chris Hanson 
On Tue, May 1, 2012 at 7:25 PM, David Fernandes
davidmfernan...@gmail.comwrote:

 Hi Chris,
 Yes, that's what I'm trying to do.


  Ok. How are you trying to hide the text NodeMask?  osg::Switch?
Adding/removing the nodes themselves?

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Re: [osg-users] [build] osgText library

2012-04-30 Thread Robert Osfield 
Hi David,

I am not aware of what N3N, NUTTS and TTS marks might be so did a
google search and the only plausible hit I got on the first page was
your email query!

Could you please explain what these marks are.

Robert.

On 27 April 2012 20:41, David Fernandes davidmfernan...@gmail.com wrote:
 Hi,

 I'm developing a project that detects X3N, NUTTS and TTS marks. I'm having a 
 problem regarding the osgText that is when the X3N mark is detected I manage 
 to pain the scene with some text instructions but when it stops detecting the 
 mark I can't remove the same text from the scene. Any thoughts on how to 
 solve this ?

 Thanks in advance.

 Cheers,
 David

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