Hi, I'm trying to make some rotation of objects, but the results are not the desired
I want to draw the coordinate axis. The following function draw an axis with
the given rotation:
Code:
osg::PositionAttitudeTransform* createAxis(osg::Vec4f color, osg::Quat
rotation){
osg::StateSet* axisStateSet = createColorStateSet(color);
osg::Geode* axisGeode = new osg::Geode();
osg::Cylinder* axisCylinder = new
osg::Cylinder(osg::Vec3(0.0f,0.0f,0.0f), 20, 50000);
osg::ShapeDrawable* axisDrawable = new osg::ShapeDrawable(axisCylinder);
axisDrawable->setStateSet(axisStateSet);
osg::PositionAttitudeTransform* axisTransform = new
osg::PositionAttitudeTransform;
axisTransform->setAttitude(rotation);
axisGeode->addDrawable(axisDrawable);
axisTransform->addChild(axisGeode);
return axisTransform;
}
And the following function draw the 3 axis giving the rotations:
Code:
osg::Group* createCoordinatesAxis(){
osg::PositionAttitudeTransform* xTransform =
createAxis(osg::Vec4f(1,0,0,1), osg::Quat(osg::DegreesToRadians(90.0), 0, 1,
0));
osg::PositionAttitudeTransform* yTransform =
createAxis(osg::Vec4f(0,1,0,1), osg::Quat(osg::DegreesToRadians(90.0), 0, 0,
1));
osg::PositionAttitudeTransform* zTransform =
createAxis(osg::Vec4f(0,0,1,1), osg::Quat(0, 1, 0, 0));
osg::Group* axisGroup = new osg::Group();
axisGroup->addChild(xTransform);
axisGroup->addChild(yTransform);
axisGroup->addChild(zTransform);
return axisGroup;
}
The result is in the following image, but the axis (red, green and blue) are
not turned 90 degrees!!! do someone know why???
Thank you!
Cheers,
Manuel[/code]
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http://forum.openscenegraph.org/viewtopic.php?p=24030#24030
<<attachment: axis.JPG>>
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