Re: [osg-users] Problem with rotations using PositionAttitudeTransform

2010-02-11 Thread Manuel Garea 
Thank you very much Vincent!

That was my error, I was calling to the osg::Quad constructor with a wrong 
order in the params

Cheers,
Manuel

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Re: [osg-users] Problem with rotations using PositionAttitudeTransform

2010-02-11 Thread Vincent Bourdier 

Hi Manuel,

You use the osg::Quat(x,y,z,w) constructor, but your arguments are not 
in the good order.

You may use osg::Quat(angle, osg::vec3d(x,y,z)) to be sure.

Hope this can help you.

Regards,
  Vincent.

Manuel Garea a écrit :

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, 5);
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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[osg-users] Problem with rotations using PositionAttitudeTransform

2010-02-11 Thread Manuel Garea 
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, 5);
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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