Hi Adri,
I think you want
osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE
in your call to setAttributeAndModes, using only OVERRIDE means OVERRIDE | OFF.
Hope that helps, I would expect your code to show the solid line.
Regards, Laurens.
On 10/30/2013 5:17 PM, Adri CS wrote:
Hi!
I'm trying to add a "dashed line" between two points (for now, they're
hardcoded. They exist in the point cloud that is already in the scene).
With this code I expected two blue points of size 10 in the same place
of those in the point cloud and a dashed line between them, yet
nothing is shown.
Do you know what the problem may be?
Here's the last piece of code I tried:
osg::ref_ptr<osg::Vec3Array>dash_points=newosg::Vec3Array;
osg::ref_ptr<osg::Vec4Array> dash_color = new osg::Vec4Array;
osg::ref_ptr<osg::Geometry> dash_geometry( new osg::Geometry);
dash_color->push_back(osg::Vec4f(0.0,0.0,1.0,1.0));
const osg::Vec3f P1(525501.015,4668653.861,457.197);
const osg::Vec3f P2(525510.287,4668630.738,457.034);
dash_points->push_back(P1);
dash_points->push_back(P2);
qDebug() << "DASH";
qDebug() << "\tP1:" << P1[0] << P1[1] << P1[2];
qDebug() << "\tDASH_POINTS[0]:" << (*dash_points)[0][0] << (*dash_points)[0][1]
<< (*dash_points)[0][2];
qDebug() << "\tP2:" << P2[0] << P2[1] << P2[2];
qDebug() << "\tDASH_POINTS[1]:" << (*dash_points)[1][0] << (*dash_points)[1][1]
<< (*dash_points)[1][2];
dash_geometry->setVertexArray(dash_points.get());
dash_geometry->setColorBinding(osg::Geometry::BIND_OVERALL);
// The1,0xf0f0parameters were taken from one of the examples...
osg::ref_ptr<osg::LineStipple> linestipple( new osg::LineStipple(1,0xf0f0)
);
dash_geometry->getOrCreateStateSet()->setAttributeAndModes(linestipple.get(),
osg::StateAttribute::OVERRIDE );
dash_geometry->addPrimitiveSet( new
osg::DrawArrays(GL_LINES,0,dash_points->size()) );
dash_geometry->getOrCreateStateSet()->setAttributeAndModes( new
osg::Point(10.0f) );
dash_geometry->addPrimitiveSet(new osg::DrawArrays(GL_POINTS, 0,
dash_points->size()));
dash_geometry->setColorArray(dash_color.get());
shape->addDrawable( dash_geometry );
shape->addDrawable(text);
Thanks and best regards!
PS: I can show a "complete" line between the points. I thought that
the code would be similar, just adding the LineStipple part.
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