Hello,
I am experimenting around a ClipNodeBox and selection by picking of Nodes
inside this box. Is there a elegant way to limit the
"computeIntersections(ea.getX(), ea.getY(), intersections,
0xffffffff)" method to take my ClipNodeBox into account?
I try
to do it by my own by using "boundingBox.contains(intersectionPoint)".
But here I have the problem that the BoundingBox has always it's
initial values after a modification by using a TabBoxDragger. I suppose
it's somewhere hidden in a TransformMatrix.
So my questions are:
1. Can I limit computeIntersections(ea.getX(), ea.getY(), intersections,
0xffffffff)" to a given ClipNodeBox?
2. If not, where can I get the modified values from the TabBoxDragger after
interactively use it?
Here are my code for the setup of the Draggers.
Many thanks for a help.
Karl ...
// clipBoxGeode created with a Box and BoundingBox before ...
// Draggers
// First a BoxDragger, as the Parent Dragger
boxDragger = new osgManipulator::TabBoxDragger();
boxDragger->setupDefaultGeometry();
osg::Vec3d scaleVec = osg::Vec3d(bb.xMax() - bb.xMin(), bb.yMax() -
bb.yMin(), bb.zMax() - bb.zMin());
scaleVec.normalize();
scaleVec *= clipBoxGeode->getBound().radius() * 2.01;
boxDragger->setMatrix(osg::Matrix::scale(scaleVec.x(), scaleVec.y(),
scaleVec.z())
* osg::Matrix::translate(clipBoxGeode->getBound().center()));
boxDragger->setNodeMask(0x00000000); // dragger invisible at start
// Then an AxisDragger, as a Child of BoxDragger
axisDragger = new osgManipulator::TranslateAxisDragger();
axisDragger->setupDefaultGeometry();
axisDragger->setMatrix(osg::Matrix::scale(3, 3, 3)
* osg::Matrix::translate(osg::Vec3f(
clipBoxGeode->getBound().center().x(),
clipBoxGeode->getBound().center().y(),
clipBoxGeode->getBound().center().z() + (bb.zMax() -
bb.zMin())/2)));
axisDragger->setNodeMask(0x00000000); // dragger invisible at start
// Set in relation, box- and axisDragger
boxDragger->addDragger(axisDragger);
axisDragger->setParentDragger(boxDragger);
// The set of elements to drag
osgManipulator::Selection * selection = new osgManipulator::Selection;
selection->addChild(clipBoxGeode);
selection->addChild(clipNode);
selection->addChild(axisDragger);
// A container for the two main elements
osg::Group * group = new osg::Group;
group->addChild(boxDragger);
group->addChild(selection);
// Connect both with the commandManager
cmdMgr->connect(*boxDragger, *selection);
osg::ref_ptr<osg::MatrixTransform> transform = new osg::MatrixTransform;
// Integration into the osg tree
transform.get()->addChild(group);
clipNodeContainer->addChild(transform.get());
// ...
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