Hi Yeah Im getting the coordinates but they are always jumping on the screen........Is something to do with remapCoordinatesystem method for landscape mode...bcozzz i hav set the oreintation of my camera as landscape mode...
If smbdyy can guide me with the correct approach of how to start with augmented reality browse.... On Jan 12, 7:14 pm, JP <[email protected]> wrote: > On Jan 12, 2:59 am, prachi <[email protected]> wrote: > > > > > > > Hi > > > Iam developing an augmented reality browser on my ownn...........But > > not able to get the screen cooridinates.... > > > I will discuss my whole problem here.....as im not sure at which point > > i stuck up... > > > I hav a set of latitude longitude values for different points.Taking > > them Iam calculating x,y,z coordinates for each point.Using left > > handed rule ie.x towards east y towards north and z upwards > > values which i get are:- > > > x=(a+altitude)*(Math.cos(latitude)*Math.sin(longitude));//x > > y=(a+altitude)*Math.sin(latitude);//y > > z=(a+altitude)*(Math.cos(latitude)*Math.cos(longitude));//z > > > where a=app 80m i have taken radius of earth.The origin is defined to > > be at centre of earth(ECEF) > > > SensorManager.getRotationMatrix(RTmp, I, grav, mag); > > SensorManager.remapCoordinateSystem(RTmp, > > SensorManager.AXIS_X, > > SensorManager.AXIS_Z, R); > > SensorManager.getOrientation(R, values); > > azimuth = (float)((values[0])*(180/Math.PI)); //in degree > > pitch = (float)((values[1])*(180/Math.PI)); //in degree > > roll = (float)((values[2])*(180/Math.PI)); //in degree > > > Then using perspective projection Iam calculating screen coordinates. > > Iam refering below link for perspective projection:-- > > >http://en.wikipedia.org/wiki/3D_projection#Perspective_projection > > > In the above link Iam replacing thetax with pitch,thetay with > > roll,thetaz with azimuth. > > > Watever screen coordinates i got from above calculations Iam plotting > > a circle using canvas.But Iam unable to see anything. > > > Pleae help as Iam stuck up with this for the past 3 dayzzz :( :( > > Hard to give a direct answer from that far. Did you fire up the > debugger and check the coordinate values you get? If they "hit" the > screen and you do not "see anything", the problem is some place else, > drawing the overlay. (This doesn't mean you've necessarily got the > math right, but at least it's a start).- Hide quoted text - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
