No.
I just want the size of the text to be updated.
I would control the position/orientation myself.
*osg::ref_ptr<osgText::Text> d = new osgText::Text;
d->setColor(osg::Vec4(NEW_OBJECT_COLOR_TXT,1.0f));
d->setRotation(osg::Quat(-osg::PI_2, osg::Vec3f(1,0,0)) *
osg::Quat(-osg::PI_2, osg::Vec3f(0,1,0)));
d->setPosition(decal*0.7);
d->setText("Test");
d->setAxisAlignment(osgText::Text::USER_DEFINED_ROTATION);
d->setAutoRotateToScreen(false);
d->setCharacterSizeMode(osgText::Text::SCREEN_COORDS);
d->setCharacterSize(30);
d->setAlignment(osgText::Text::CENTER_TOP);
d->setFont( _ve->getFont().get())*
Thanks,
Regards,
Vincent.
2009/1/13 Robert Osfield <robert.osfi...@gmail.com>
> Do you use text->setAutoRotateToScreen(true)?
>
> On Tue, Jan 13, 2009 at 1:36 PM, Vincent Bourdier
> <vincent.bourd...@gmail.com> wrote:
> > Hi,
> >
> > I've tried what you propose : put the rotated text on a separate geode
> (and
> > not the billboard) ... The result is the same : text do not update
> > correctly.
> >
> > I don't know what to change... I've tried to set the rotation before the
> > translation, whatever be the order of the instructions : is the
> > setRotation() is called, the text do not update with good proportions...
> >
> > Any suggestion ?
> >
> > Thanks,
> >
> > Regards,
> > Vincent.
> >
> > 2009/1/13 Vincent Bourdier <vincent.bourd...@gmail.com>
> >>
> >> Hi Robert,
> >>
> >> I did it from the past for a simple OSG text on a billboard node,
> >> without constant screen pixel size management and it works well.
> >>
> >> I'll try to get the text out from the billboard, hoping this won't
> >> be so difficult to obtain the same result...
> >>
> >> Thanks for this explanation.
> >>
> >> Regards,
> >> Vincent.
> >>
> >> 2009/1/13 Robert Osfield <robert.osfi...@gmail.com>
> >>>
> >>> Hi Vincent,
> >>>
> >>> I've never used osgText in conjunction with osg::Billboard before. I
> >>> can image the mix of on the fly compute matrices might cause problems.
> >>> osgText has support for billboard behaviour so I'd recommend not
> >>> adding the text to the billboard, instead just add it as sibling to
> >>> the Billboard and enable the rotate to screen option on the text
> >>> object.
> >>>
> >>> Robert.
> >>>
> >>> On Tue, Jan 13, 2009 at 11:59 AM, Vincent Bourdier
> >>> <vincent.bourd...@gmail.com> wrote:
> >>> > Hi,
> >>> >
> >>> > Currently making my billboard node, I add an osgText on it. I need
> this
> >>> > text
> >>> > to be in node's coordinate, but in constant pixel size on screen.
> >>> > When the billboard move or rotate, the text will follow it. The only
> >>> > thing
> >>> > the text can change is caracter size.
> >>> >
> >>> > I use this code :
> >>> >
> >>> > osg::ref_ptr<osgText::Text> d = new osgText::Text;
> >>> >
> >>> > d->setRotation(osg::Quat(-osg::PI_2, osg::Vec3f(1,0,0)) *
> >>> > osg::Quat(-osg::PI_2, osg::Vec3f(0,1,0)));
> >>> >
> >>> > d->setPosition(decal*0.7);//to avoid collision between object and
> >>> > osgText
> >>> >
> >>> > d->setText("Test");
> >>> > d->setAxisAlignment(osgText::Text::USER_DEFINED_ROTATION);
> >>> > d->setAutoRotateToScreen(false);
> >>> > d->setCharacterSizeMode(osgText::Text::SCREEN_COORDS);
> >>> > d->setCharacterSize(30);
> >>> > d->setAlignment(osgText::Text::CENTER_TOP);
> >>> > // d->setDrawMode(1);
> >>> >
> >>> > billboard->addDrawable(d.get());
> >>> >
> >>> > But the setRotation is making something bad.
> >>> >
> >>> > Without the setRotation line node, everything is good for text size.
> >>> > Rotation is bad but it is something expected.
> >>> > So I apply a rotation on it, to obtain the text with the good
> >>> > orientation
> >>> > relative to the billboard. After that, the text rotation is good, but
> >>> > when
> >>> > the camera is aproaching, the text size do not update correctly :
> only
> >>> > the
> >>> > width stay constant in pixel size... the hight stay constant in
> >>> > billboard
> >>> > coordinates size. So the text is deformed, depending on camera
> distance
> >>> > from
> >>> > it..
> >>> >
> >>> > The question is : how to rotate the text without having this bad
> effect
> >>> > ?
> >>> >
> >>> > Thanks.
> >>> >
> >>> > Regards,
> >>> > Vincent.
> >>> >
> >>> > _______________________________________________
> >>> > osg-users mailing list
> >>> > osg-users@lists.openscenegraph.org
> >>> >
> >>> >
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
> >>> >
> >>> >
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> >>>
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> >>
> >
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