Re: [osg-users] Local coordinates

Hi Zeiki, On 8 February 2013 06:56, Zeki Yugnak zeki.yug...@gmail.com wrote: Hi Robert, I found the problem yesterday. You are right, the problem is regarding to floating point usage. I am computing camera position using center of the object's BoundingSphere. When I start debug whole

Re: [osg-users] Local coordinates

HI Zeki, I don't know the specific cause of the problem but again as I don't have your problem infront of me or the able to see the problem first hand. Best I can do is stress that you need to use doubles. Go back through your original code submission, is everything doubles??? Keeping looking

Re: [osg-users] Local coordinates

Hi Robert, I found the problem yesterday. You are right, the problem is regarding to floating point usage. I am computing camera position using center of the object's BoundingSphere. When I start debug whole code, I figure out that the BoundingSphere type is floating point and

Re: [osg-users] Local coordinates

Hi everyone, I just started using Openscenegraph. I have some questions regarding coordinate systems. I am trying to develop simple debriefing application. I am using geographic (lat, long and alt ) coordinates and rotations information that were recorded on vehicle to transform objects in 3D

Re: [osg-users] Local coordinates

Zeki, Don't transform the root scene (I assume you mean the terrain). Instead just take the matrix you got from computeLocalToWorldTransformFromLatLongHeight() and put that into a MatrixTransform. Then any points under that MatrixTransform are local to that world point, and you won't have any

Re: [osg-users] Local coordinates

Hi Glenn , I have been already doing what you're saying. Here is the transformation code block; Code: osg::Vec3 rotation(currentRotation.Heading, currentRotation.Pitch, currentRotation.Roll); osg::Matrix hprRotationMat; Util::HprToMatrix(hprRotationMat, rotation); //Ellipsoid model of the

Re: [osg-users] Local coordinates

A couple of observations: 1) The units will be in millions because your database is a round earth database using the WGS84 spheroid ECEF CS with units in meters. 2) I don't understand how your second code blocks maps correctly to the geocentric cartesian round earth database built with osgdem

Re: [osg-users] Local coordinates

Hi Shayne, Thanks for your help. Your's transformation code block is the same as mine's. I really do not know why object's translation is not smooth. Also I could not use second code block because of terrain-object correlation problem. But I hope that I will translate object smoothly using