void ShapeVisitor_VisualizerCreator::visit( Layout::Shape_Plane& shape )
{
// OSG does not support InfinitePlane drawing at this time, maybe try to use this piece of code with the new version of OSG
/*
osg::InfinitePlane * plane = new osg::InfinitePlane;
plane->set (shape.getNormalVector (), getScaledDistance (shape.getD ()));
osg::ShapeDrawable * sd = new osg::ShapeDrawable;
sd->setShape (plane);
sd->setColor (osg::Vec4 (0, 0.5, 0.0, 0.5));
now we use a temporary code instead - drawing a plane using box:
if(shape.isInvisible()) {
createdVisualizer_ = new osg::Group;
return;
}
*/
// position of center point
osg::Vec3f center( 0, 0, ( -shape.getD() ) / shape.getNormalVector().z() ); // some point on the plane
//qDebug() << "center: " << center.z();
// size of grid
int size = 1000;
// number of lines on one side of grid
int noOfLines = 10;
// compute 4 corners of grid based on center point
// osg::Vec3Array* gridVertices = new osg::Vec3Array;
// gridVertices->push_back( center + osg::Vec3f( -size/2, size/2, 0) ); // top left
// gridVertices->push_back( center + osg::Vec3f(size/2, size/2, 0) ); // top right
// gridVertices->push_back( center + osg::Vec3f(-size/2,-size/2, 0) ); // bottom right
// gridVertices->push_back( center + osg::Vec3f( size/2,-size/2, 0) ); // bottom left
osg::Geometry* gridGeometry;
gridGeometry = createGridGeometry( size, noOfLines, center );
// creating new geode
osg::Geode* geode = new osg::Geode;
// assign geometry
geode->addDrawable( gridGeometry );
// turn off GL_LIGHTNING
gridGeometry->getOrCreateStateSet()->setMode( GL_LIGHTING,osg::StateAttribute::OFF );
// setting color of grid
osg::Vec4Array* colors = new osg::Vec4Array;
colors->push_back( osg::Vec4( 0.0f, 0.0f, 1.0f, 0.6f ) ); // blue
gridGeometry->setColorArray( colors );
gridGeometry->setColorBinding( osg::Geometry::BIND_OVERALL );
createdVisualizer_ = geode;
}
void ShapeVisitor_VisualizerCreator::visit (Layout::Shape_Plane & shape) {
// OSG does not support InfinitePlane drawing at this time, maybe try to use this piece of code with the new version of OSG
/*
osg::InfinitePlane * plane = new osg::InfinitePlane;
plane->set (shape.getNormalVector (), getScaledDistance (shape.getD ()));
osg::ShapeDrawable * sd = new osg::ShapeDrawable;
sd->setShape (plane);
sd->setColor (osg::Vec4 (0, 0.5, 0.0, 0.5));
*/
// now we use a temporary code instead - drawing a plane using box:
// center
osg::Vec3 center (0, 0, (- shape.getD ()) / shape.getNormalVector ().z () ); // some point on the plane
// rotation
osg::Quat quat;
quat.makeRotate (osg::Z_AXIS, shape.getNormalVector ());
osg::Box * box = new osg::Box;
box->setCenter (getScaledPosition (center));
box->setRotation (quat);
box->setHalfLengths (osg::Vec3 (1000, 1000, 1));
osg::ShapeDrawable * sd = new osg::ShapeDrawable;
sd->setShape (box);
sd->setColor (osg::Vec4 (0, 0, 1.0, 0.06));
sd->getOrCreateStateSet()->setMode (GL_BLEND, osg::StateAttribute::ON);
sd->getStateSet()->setRenderingHint (osg::StateSet::TRANSPARENT_BIN);
osg::Geode * geode = new osg::Geode;
geode->addDrawable (sd);
createdVisualizer_ = geode;
}