Re: [osg-users] problem in camera rotation

Hi, I changed the order of matrix manipulations and put everything in a single transformation only. But the result I m getting is same. The geometry is going out of view. I dont understand the problem. Pls anyone correct me. Thank you! Cheers, Akilan -- Read this topic onli

Re: [osg-users] problem in camera rotation

Hi Akilan; Matrix multiplaction is not commutative. If you change the order of matrix as a result the accumulated matrix will behave different as you anticipated. So order of matrix multiplexing is Scale, Rotate and lastly Translate. So in multiplexting operation order of them as follows; Accumula

Re: [osg-users] problem in camera rotation

Hi, yeah. I found my geometry center as ( 0.04,0.075,0.0). So first I do the rotation of 90 degree about z-axis and then translating my geometry to 0 by subtracting the aboive center values. Again I m getting my geometry is translated and half of the geometry is off the view. Have a look at m

Re: [osg-users] problem in camera rotation

Hi, Akilan Thangamani wrote: Hi, Yes. I changed the way I was doing. I set geometry under a matrix transform node and trying to rotate the geometry 90 degree over Z-axis. It s getting translated too. I want to know how much unit I have to translate it back and If I want to rotate on o

Re: [osg-users] problem in camera rotation

Hi, Akilan Thangamani wrote: Hi, Actually, I would like to simulate a navigation control for north orientation as available in google earth. I wanted to rotate the control along the X-axis(+/-) that will get reflected on geocentric virtual earth. I set the camera to the geometry(navigation con

Re: [osg-users] problem in camera rotation

Hi, Actually, I would like to simulate a navigation control for north orientation as available in google earth. I wanted to rotate the control along the X-axis(+/-) that will get reflected on geocentric virtual earth. I set the camera to the geometry(navigation control). What I thought was th

Re: [osg-users] problem in camera rotation

Hi, Akilan Thangamani wrote: Hi, I understand that this problem has already been discussed . But as I was not able to understand clearly I post my simple camera rotation problem., I written a code osg::ref g_camera=new osg:::camera; g_camera->setProjectionMatrix(osg::Matrix::ortho2D(0,1,0,

[osg-users] problem in camera rotation

Hi, I understand that this problem has already been discussed . But as I was not able to understand clearly I post my simple camera rotation problem., I written a code osg::ref g_camera=new osg:::camera; g_camera->setProjectionMatrix(osg::Matrix::ortho2D(0,1,0,1)); g_camera->setReferenceFrame