Hi Robert
I am using non-dimensional throughout - I do not think that is the
problem. The problem is y-up or y-down. In Producer there is a note in
positionPointer() about this and it then continues to use y directly
(and therefore y-down). If I am correct OsgProducer defaults to y-up and
does not allow for this when calling Producer.
Cheers
Alan
Robert Osfield wrote:
HI Alan,
Producer by default uses non dimension screen coordinates, and
osgProducer follow this. Non dimension screen coordinate go from -1
to 1.
osgGA::GUIEventAdapter can handle both dimension and non dimension
screen coordinates, and there is a convinience function
getXnormalized() and getYnormalised() than are rescaled to ensure the
final values are non-dimensional.
I presume you just need to unsure that you have consistency in whether
you values or dimensional or non-dimensional, and where you move from
one to other you have the conversion in place.
Robert.
On 6/10/06, Alan Harris <[EMAIL PROTECTED]> wrote:
Hi
Either I am using GUIActionAdapter::requestWarpPointer() wrong or there
is a problem in that y needs to be specified top-down.
The standard function is :
WFKeyboardMouseCallback* kbmcb = m_pkm->getKeyboardMouseCallback();
if (kbmcb->valid() && isRealized())
{
//osg::notify(osg::INFO) << "requestWarpPointer x= "<<x<<"
y="<<y<<std::endl;
EventAdapter::_s_mx = x;
EventAdapter::_s_my = y;
kbmcb->getKeyboardMouse()->positionPointer(x,y);
return;
}
I have had to modify GUIActionAdapter to the following to get it to work
correctly:
WFKeyboardMouseCallback* kbmcb = m_pkm->getKeyboardMouseCallback();
if (kbmcb->valid() && isRealized())
{
//osg::notify(osg::INFO) << "requestWarpPointer x= "<<x<<"
y="<<y<<std::endl;
EventAdapter::_s_mx = x;
EventAdapter::_s_my = y;
Producer::RenderSurface* _rs =
m_pkm->getKeyboardMouse()->getRenderSurface();
Producer::RenderSurface::InputRectangle ir =
_rs->getInputRectangle();
// y DOWN needs to be passed to positionPointer - this works
kbmcb->getKeyboardMouse()->positionPointer(x,2*ir.bottom()+ir.height()-y);
// this also works
//unsigned int ww = _rs->getWindowWidth();
//unsigned int wh = _rs->getWindowHeight();
//int ix = int(((x - ir.left())/ir.width()) * float(ww-1)+ 0.5f );
//int iy = int(((y - ir.bottom())/ir.height()) * float(wh-1)+
0.5f );
//_rs->positionPointer(ix,wh-1-iy);
return;
}
--
Regards
Alan Harris
ReSoft Ltd
7 Church Lane
Flitton
BEDFORD, MK45 5EL, UK
Tel: +44 (0) 1525 862616
Email: [EMAIL PROTECTED]
Web: www.resoft.co.uk
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